搜题
The chemical is deadly to rats but safe to cattle.
A:useful
B:fatal
C:good
D:hateful
A:useful
B:fatal
C:good
D:hateful
共用题干
Interior Design
Although interior design has existed since the beginning of architecture,its development into a specialized field is really quite recent. Interior designers have become important partly because of the many functions that might be______(51)in a single large building.
The importance of interior design becomes______(52)when we realize how much time we ______(53)surrounded by four walls.Whenever we need to be indoors,we want our surroundings to be______(54)attractive and comfortable as possible.We also expect______(55) place to be appropriate to its use.
You would be______(56)if the inside of your bedroom were suddenly changed to look ______(57)the inside of a restaurant. And you wouldn't feel______(58)in a business office that has the appearance of a school.
It soon becomes clear that the interior designer's most important basic______(59)is the function of the particular______(60),for example,a theatre with poor sight lines,poor sound shaping qualities,and______(61)few entries and exists will not work for______(62)purposes,no matter how beautifully it might be______(63).Nevertheless,for any kind of space,the designer has to make many of the same kind of______(64).He or she must coordinate the shapes,lighting and decoration of everything from ceilling to floor,______(65)addition,the designer must usually select furniture or design built-in furniture,according to the functions that need to be served.
_________(63)
A:painted
B:covered
C:ornamented
D:decorated
Interior Design
Although interior design has existed since the beginning of architecture,its development into a specialized field is really quite recent. Interior designers have become important partly because of the many functions that might be______(51)in a single large building.
The importance of interior design becomes______(52)when we realize how much time we ______(53)surrounded by four walls.Whenever we need to be indoors,we want our surroundings to be______(54)attractive and comfortable as possible.We also expect______(55) place to be appropriate to its use.
You would be______(56)if the inside of your bedroom were suddenly changed to look ______(57)the inside of a restaurant. And you wouldn't feel______(58)in a business office that has the appearance of a school.
It soon becomes clear that the interior designer's most important basic______(59)is the function of the particular______(60),for example,a theatre with poor sight lines,poor sound shaping qualities,and______(61)few entries and exists will not work for______(62)purposes,no matter how beautifully it might be______(63).Nevertheless,for any kind of space,the designer has to make many of the same kind of______(64).He or she must coordinate the shapes,lighting and decoration of everything from ceilling to floor,______(65)addition,the designer must usually select furniture or design built-in furniture,according to the functions that need to be served.
_________(63)
A:painted
B:covered
C:ornamented
D:decorated
共用题干
Climate Change Poses Major Risks for Unprepared Cities
A new examination of urban policies has been carried out recently by Patricia Romero Lankao. She is a so-
ciologist specializing in climate change and_____________(51) development. She warns that many of the world'5
fast-growing urban areas,especially in developing countries,will likely suffer from the_____________(52)of
changing climate. Her work also concludes that most cities are failing to_____________(53)emissions of carbon
dioxide and other greenhouse gases. These gases are known to affect the atmosphere.
"Climate change is a deeply local issue and poses profound_____________ (54) to the growing cities of the
world,"says Romero Lankao. "But too few cities are developing effective strategies to protect their residents."
Cities are_____________(55)sources of greenhouse gases.And urban populations are likely to be among
those most severely affected by future climate change.Lankao's findings highlight ways in which city-resi-
dents are particularly vulnerable,and suggest policy interventions that could offer immediate and longer-term
____________ (56).
The locations and dense construction patterns of cities often place their populations at greater
_____________(57)for natural disasters.Potential threats associated with climate include storm surges and pro-
longed hot weather. Storm surges can flood coastal areas and prolonged hot weather can heat_____________(58)
paved cities more than surrounding areas. The impacts of such natural events can be more_____________(59)in
an urban environment. For example,a prolonged heat wave can increase existing levels of air pollution,causing
widespread health problems.Poorer neighborhoods that may_____________(60)basic facilities such as drinking
water or a dependable network of roads,are especially vulnerable to natural disasters.Many residents in
poorer countries live in substandard housing_____________(61)access to reliable drinking water,roads and
basic services.
Local governments,therefore,should take measures to_____________(62)their residents."Unfortunately,
they tend to move towards rhetoric_____________(63)meaningful responses,"Romero Lankao writes,"They don't
impose construction standards that could reduce heating and air conditioning_____________(64).They don't em-
phasize mass transit and reduce automobile use.In fact,many local governments are taking a hands-off ap-
proach."_____________(65),she urges them to change their idle policies and to take strong steps to prevent
the harmful effects of climate change on cities.
_________(55)
A:major
B:repeatable
C:doubtful
D:useful
Climate Change Poses Major Risks for Unprepared Cities
A new examination of urban policies has been carried out recently by Patricia Romero Lankao. She is a so-
ciologist specializing in climate change and_____________(51) development. She warns that many of the world'5
fast-growing urban areas,especially in developing countries,will likely suffer from the_____________(52)of
changing climate. Her work also concludes that most cities are failing to_____________(53)emissions of carbon
dioxide and other greenhouse gases. These gases are known to affect the atmosphere.
"Climate change is a deeply local issue and poses profound_____________ (54) to the growing cities of the
world,"says Romero Lankao. "But too few cities are developing effective strategies to protect their residents."
Cities are_____________(55)sources of greenhouse gases.And urban populations are likely to be among
those most severely affected by future climate change.Lankao's findings highlight ways in which city-resi-
dents are particularly vulnerable,and suggest policy interventions that could offer immediate and longer-term
____________ (56).
The locations and dense construction patterns of cities often place their populations at greater
_____________(57)for natural disasters.Potential threats associated with climate include storm surges and pro-
longed hot weather. Storm surges can flood coastal areas and prolonged hot weather can heat_____________(58)
paved cities more than surrounding areas. The impacts of such natural events can be more_____________(59)in
an urban environment. For example,a prolonged heat wave can increase existing levels of air pollution,causing
widespread health problems.Poorer neighborhoods that may_____________(60)basic facilities such as drinking
water or a dependable network of roads,are especially vulnerable to natural disasters.Many residents in
poorer countries live in substandard housing_____________(61)access to reliable drinking water,roads and
basic services.
Local governments,therefore,should take measures to_____________(62)their residents."Unfortunately,
they tend to move towards rhetoric_____________(63)meaningful responses,"Romero Lankao writes,"They don't
impose construction standards that could reduce heating and air conditioning_____________(64).They don't em-
phasize mass transit and reduce automobile use.In fact,many local governments are taking a hands-off ap-
proach."_____________(65),she urges them to change their idle policies and to take strong steps to prevent
the harmful effects of climate change on cities.
_________(55)
A:major
B:repeatable
C:doubtful
D:useful
If people didn't perspire,they would die in five minutes.
A:breathe
B:eat
C:sweat
D:drink
A:breathe
B:eat
C:sweat
D:drink
共用题干
Eastern Quakes can Trigger Big Shakes
In the first week of November 2011,people in central Oklahoma experienced more than two dozen earth-
quakes.The largest,a magnitude（量）5.6 quake,shook thousands of fans in a college football stadium,
caused cracks in a few buildings and scared many people who had never felt a quake before.Oklahoma is not
an area of the country famous for its quakes.If you watch the news on TV,you will see reports about all sorts
of natural disasters.But the most dangerous type of natural disaster,and also the most unpredictable,is the
earthquake.
Researchers at the US Geological Survey(USGS)estimate that several million earthquakes occur globally
each year. That may sound scary,but people don't feel many of them because they happen in remote and
unpopulated regions.Many quakes happen under the ocean,and others have a very small magnitude.
Scientists know about small,remote quakes only because of very sensitive electronic devices called seis-
mometers（地震仪）.These devices detect and measure the size of ground vibrations（震颤）produced by
earthquakes.Altogether,USGS researchers use seismometers to identify and locate about 20,000 earthquakes
each year.
Although earthquakes can happen anywhere in the world,really big quakes occur only in certain areas.
The largest ones register a magnitude 8 or higher and happen,on average,only once each year. Such big
ones typically occur along the edges of Earth ' s tectonic plates（构造板块）.
Tectonic plates are huge pieces of Earth ' s crust（外壳）,sometimes many kilometers thick. Often,
edges of these plates temporarily lock together. When plates push and scrape（擦）past each other earthquakes
occur. On average,tectonic plates move very slowly一about the same speed as your fingernails grow.
But sometimes earthquakes rumble（轰轰作响）through portions of the landscape far from a plate ' s
edges.Although less expected,these"mid-plate"small earthquakes can do substantial damage.Some of the
biggest known examples hit the eastern half of the United States two centuries ago.Today,scientists are still
puzzling over why the quakes occurred and when similar ones might occur.
The earthquake is the most unpredictable natural disaster.
A:Right
B:Wrong
C:Not mentioned
Eastern Quakes can Trigger Big Shakes
In the first week of November 2011,people in central Oklahoma experienced more than two dozen earth-
quakes.The largest,a magnitude（量）5.6 quake,shook thousands of fans in a college football stadium,
caused cracks in a few buildings and scared many people who had never felt a quake before.Oklahoma is not
an area of the country famous for its quakes.If you watch the news on TV,you will see reports about all sorts
of natural disasters.But the most dangerous type of natural disaster,and also the most unpredictable,is the
earthquake.
Researchers at the US Geological Survey(USGS)estimate that several million earthquakes occur globally
each year. That may sound scary,but people don't feel many of them because they happen in remote and
unpopulated regions.Many quakes happen under the ocean,and others have a very small magnitude.
Scientists know about small,remote quakes only because of very sensitive electronic devices called seis-
mometers（地震仪）.These devices detect and measure the size of ground vibrations（震颤）produced by
earthquakes.Altogether,USGS researchers use seismometers to identify and locate about 20,000 earthquakes
each year.
Although earthquakes can happen anywhere in the world,really big quakes occur only in certain areas.
The largest ones register a magnitude 8 or higher and happen,on average,only once each year. Such big
ones typically occur along the edges of Earth ' s tectonic plates（构造板块）.
Tectonic plates are huge pieces of Earth ' s crust（外壳）,sometimes many kilometers thick. Often,
edges of these plates temporarily lock together. When plates push and scrape（擦）past each other earthquakes
occur. On average,tectonic plates move very slowly一about the same speed as your fingernails grow.
But sometimes earthquakes rumble（轰轰作响）through portions of the landscape far from a plate ' s
edges.Although less expected,these"mid-plate"small earthquakes can do substantial damage.Some of the
biggest known examples hit the eastern half of the United States two centuries ago.Today,scientists are still
puzzling over why the quakes occurred and when similar ones might occur.
The earthquake is the most unpredictable natural disaster.
A:Right
B:Wrong
C:Not mentioned
共用题干
Sleep Deficit
Judging from recent surveys,most experts in sleep behavior agree that there is virtually an epidemic（流行病）of sleepiness in the nation."I can't think of a single study that hasn't found Americans getting less sleep than they ought to,"says Dr.David.Even people who think they are sleeping enough would probably be better off with more rest.
The beginning of our sleep-deficit（睡眠不足）crisis can be traced to the invention of the light bulb a century ago.From diary entries and other personal accounts from the 18th and 19th centuries,sleep scientists have reached the conclusion that the average person used to sleep about 9.5 hours a night."The best sleep habits once were forced on us,when we had nothing to do in the evening down on the farm,and it was dark."By the 1950s and 1960s,that sleep schedule had been reduced dramatically,to between 7.5 and 8 hours,and most people had to wake up to an alarm clock."People cheat on their sleep,and they don't even realize they're doing it,"says Dr.David."They think they're okay because they can get by on 6.5 hours, when they really need 7.5,8 or even more to feel ideally vigorous."
Perhaps the most merciless robber of sleep,researchers say,is the complexity of the day.Whenever pressures from work,family,friends and community mount,many people consider sleep the least expensive item on his programme.In our society,you're considered dynamic if you say you only need 5;5 hours, sleep.If you've got to get 8.5 hours,people think you lack drive and ambition.
To determine the consequences of sleep deficit,researchers have put subjects through a set of psycho-logical and performance tests requiring them,for instance,to add columns of numbers or recall a passage read to them only minutes earlier."We've found that if you're in sleep deficit,performance suffers,"says Dr.David."Short-term memory is weakened,as arc abilities to make decisions and to concentrate."
The word"subjects"(Line 1,Para 4)refers to______.
A:the performance tests used in the study of sleep deficit
B:special branches of knowledge that are being studied
C:people whose behavior or reactions are being studied
D:the psychological consequences of sleep deficit
Sleep Deficit
Judging from recent surveys,most experts in sleep behavior agree that there is virtually an epidemic（流行病）of sleepiness in the nation."I can't think of a single study that hasn't found Americans getting less sleep than they ought to,"says Dr.David.Even people who think they are sleeping enough would probably be better off with more rest.
The beginning of our sleep-deficit（睡眠不足）crisis can be traced to the invention of the light bulb a century ago.From diary entries and other personal accounts from the 18th and 19th centuries,sleep scientists have reached the conclusion that the average person used to sleep about 9.5 hours a night."The best sleep habits once were forced on us,when we had nothing to do in the evening down on the farm,and it was dark."By the 1950s and 1960s,that sleep schedule had been reduced dramatically,to between 7.5 and 8 hours,and most people had to wake up to an alarm clock."People cheat on their sleep,and they don't even realize they're doing it,"says Dr.David."They think they're okay because they can get by on 6.5 hours, when they really need 7.5,8 or even more to feel ideally vigorous."
Perhaps the most merciless robber of sleep,researchers say,is the complexity of the day.Whenever pressures from work,family,friends and community mount,many people consider sleep the least expensive item on his programme.In our society,you're considered dynamic if you say you only need 5;5 hours, sleep.If you've got to get 8.5 hours,people think you lack drive and ambition.
To determine the consequences of sleep deficit,researchers have put subjects through a set of psycho-logical and performance tests requiring them,for instance,to add columns of numbers or recall a passage read to them only minutes earlier."We've found that if you're in sleep deficit,performance suffers,"says Dr.David."Short-term memory is weakened,as arc abilities to make decisions and to concentrate."
The word"subjects"(Line 1,Para 4)refers to______.
A:the performance tests used in the study of sleep deficit
B:special branches of knowledge that are being studied
C:people whose behavior or reactions are being studied
D:the psychological consequences of sleep deficit
共用题干
Earth's Inner Core
Scientists have long struggled to understand what lies at the planet's center.Direct
observation of its center is impossible,so researchers must_________(1)to other evidence.
In 1889,a German scientist detected a severe earthquake in Japan.Geophysicists
concluded that shock waves_________(2) jolts（晃动）from one side of Earth through
the center to the other side.Then in 1936,Danish geophysicist lnge Lehmann studied the
waves' __________ (3) to determine that within Earth's core of molten（熔化了的）iron
lies a solid inner core一but_________(4) that core was made of eluded（难倒）her.
Other geophysicists quickly determined that Lehmann's inner core was composed mostly
_________(5) iron.Since then,Lehmann's discovery has _________(6)
conventional Earth science.
But now scientists are challenging traditional theory with new and radical_________
(7).For example,Earth's center could actually contain an"inner core within the inner
core."claim lshii and colleague Adam Dziewonski.
Analyzing hundreds of thousands of earthquake wave _________(8),they
maintain that the inner core has at its heart a tiny, even more solid sphere（球体）.This
sphere"may be the oldest fossil_________(9)from the formation of Earth,"says Dziewonski.
Dziewonski and Ishii speculate that shortly _________(10)Earth formed around
4.8 billion years ago,a giant asteroid（小行星）smashed into the young planet and nearly
melted it.But Earth's center didn't quite melt;it_________(11)mass as the planet
cooled. The core within a core may be the kernel（核心）that endured. " Its presence
could change our basic ideas about the_________(12)of the planet,"Dziewonski
says.
Dziewonski's idea is tame（温和的）compared to the_________( 13 ) theories of
independent geophysicist J. Marvin Herndon.Earth's inner core is made not of iron,he
claims,but a_________(14)of nickel and silicon.Herndon has a truly revolutionary
notion : Within the nickel silicide（硅化物）inner core is also an "inner" inner core一an
8km-wide ball of the element uranium.Uranium is radioactive.Herndon thinks the uranium
releases heat energy as its atoms_________(15)fission-split and crash into one
another in a chain reaction.In other words,we may live on top of a gigantic, "natural"
nuclear power plant.
_________(5)
A:from
B:within
C:of
D:to
Earth's Inner Core
Scientists have long struggled to understand what lies at the planet's center.Direct
observation of its center is impossible,so researchers must_________(1)to other evidence.
In 1889,a German scientist detected a severe earthquake in Japan.Geophysicists
concluded that shock waves_________(2) jolts（晃动）from one side of Earth through
the center to the other side.Then in 1936,Danish geophysicist lnge Lehmann studied the
waves' __________ (3) to determine that within Earth's core of molten（熔化了的）iron
lies a solid inner core一but_________(4) that core was made of eluded（难倒）her.
Other geophysicists quickly determined that Lehmann's inner core was composed mostly
_________(5) iron.Since then,Lehmann's discovery has _________(6)
conventional Earth science.
But now scientists are challenging traditional theory with new and radical_________
(7).For example,Earth's center could actually contain an"inner core within the inner
core."claim lshii and colleague Adam Dziewonski.
Analyzing hundreds of thousands of earthquake wave _________(8),they
maintain that the inner core has at its heart a tiny, even more solid sphere（球体）.This
sphere"may be the oldest fossil_________(9)from the formation of Earth,"says Dziewonski.
Dziewonski and Ishii speculate that shortly _________(10)Earth formed around
4.8 billion years ago,a giant asteroid（小行星）smashed into the young planet and nearly
melted it.But Earth's center didn't quite melt;it_________(11)mass as the planet
cooled. The core within a core may be the kernel（核心）that endured. " Its presence
could change our basic ideas about the_________(12)of the planet,"Dziewonski
says.
Dziewonski's idea is tame（温和的）compared to the_________( 13 ) theories of
independent geophysicist J. Marvin Herndon.Earth's inner core is made not of iron,he
claims,but a_________(14)of nickel and silicon.Herndon has a truly revolutionary
notion : Within the nickel silicide（硅化物）inner core is also an "inner" inner core一an
8km-wide ball of the element uranium.Uranium is radioactive.Herndon thinks the uranium
releases heat energy as its atoms_________(15)fission-split and crash into one
another in a chain reaction.In other words,we may live on top of a gigantic, "natural"
nuclear power plant.
_________(5)
A:from
B:within
C:of
D:to
共用题干
New Product Will Save lives
Drinking water that looks clean may still contain bugs（虫子）,which can cause illness.
A small company called Genera Technologies has produced a testing method in three
stages,which shows whether water is safe.The new test shows if water needs chemicals
added to it,to destroy anything harmful.It was invented by scientist Dr. Adrian Parton,
who started Genera five years ago.He and his employees have developed the test together
with a British water company.
Andy Headland,Genera's marketing director,recently presented the test at a
conference in the USA and forecast good American sales for it.Genera has already sold 11
of its tests at$42,500 a time in the UK and has a further four on order. It expects to sell
another 25 tests before the end of March.The company says it is the only test in the UK to
be approved by the government.
Genera was formed five years ago and until October last year had only five employees;
it now employs 14.Mr Headland believes that the company should make around$19 million
by the end of the year in the UK alone.
The British government is helping Dr. Parton to sell the tests abroad.
A:Right
B:Wrong
C:Not mentioned
New Product Will Save lives
Drinking water that looks clean may still contain bugs（虫子）,which can cause illness.
A small company called Genera Technologies has produced a testing method in three
stages,which shows whether water is safe.The new test shows if water needs chemicals
added to it,to destroy anything harmful.It was invented by scientist Dr. Adrian Parton,
who started Genera five years ago.He and his employees have developed the test together
with a British water company.
Andy Headland,Genera's marketing director,recently presented the test at a
conference in the USA and forecast good American sales for it.Genera has already sold 11
of its tests at$42,500 a time in the UK and has a further four on order. It expects to sell
another 25 tests before the end of March.The company says it is the only test in the UK to
be approved by the government.
Genera was formed five years ago and until October last year had only five employees;
it now employs 14.Mr Headland believes that the company should make around$19 million
by the end of the year in the UK alone.
The British government is helping Dr. Parton to sell the tests abroad.
A:Right
B:Wrong
C:Not mentioned
共用题干
Smoking can Increase Depressive Symptoms in Teens
While some teenagers may use cigarettes to "self-medicate"（自我治疗）against the blues（忧郁）,sci-
entists at the University of Toronto and the University of Montreal have found that smoking may actually
______________
(51)depressive symptoms in some teens.
"This observational study is one of the few to examine the perceived ______________(52)benefits of
smoking among teens,"says lead researcher Michael Chaiton,a research associate at the Ontario Tobacco
Research Unit of the University of Toronto."_______________(53)cigarettes may appear to have self-medicating
effects or to improve mood,in the long_______________(54)we found that teens who started to smoke reported
higher depressive symptoms."
As part of the study,some 662 high school teenagers completed up to 20 questionnaires about their use
of cigarettes to ______________
(55)mood.Secondary schools were selected to provide a mix of French and
English participants,urban and rural schools,and schools ______________(56)in high,moderate and low so-
cioeconomic neighbourhoods.
Participants were divided into three
______________ (57):never smokers;smokers who did not use ciga-
rettes to self-medicate,improve mood or physical
______________ (58);smokers who used cigarettes to self-
medicate.Depressive symptoms were measured using a scale that asked how often participants felt too tired
to do things;had
______________ (59)going to sleep or staying asleep;felt unhappy,sad,or depressed;felt
hopeless about the future;felt anxious or tense;and worried too much about things.
" Smokers who used cigarettes as mood
______________( 60 ) had higher risks of elevated（提升）depres-
sive symptoms______________ (61)teens who had never smoked,"says co-researcher Jennifer O'Loughlin,a
professor at the University of Montreal Department of Social and Preventive Medicine."Our study found that
teen smokers who reported emotional benefits from smoking are_______________(62)higher risk of developing
depressive symptoms."
The______________ (63)between depression and'smoking exists______________(64)among teens that use
cigarettes to feel better."It's ______________(65)to emphasize that depressive symptom scores were higher
among teenagers who reported emotional benefits from smoking after they began to smoke,"says Dr. Chaiton.
_________(59)
A:time
B:courage
C:trouble
D:energy
Smoking can Increase Depressive Symptoms in Teens
While some teenagers may use cigarettes to "self-medicate"（自我治疗）against the blues（忧郁）,sci-
entists at the University of Toronto and the University of Montreal have found that smoking may actually
______________
(51)depressive symptoms in some teens.
"This observational study is one of the few to examine the perceived ______________(52)benefits of
smoking among teens,"says lead researcher Michael Chaiton,a research associate at the Ontario Tobacco
Research Unit of the University of Toronto."_______________(53)cigarettes may appear to have self-medicating
effects or to improve mood,in the long_______________(54)we found that teens who started to smoke reported
higher depressive symptoms."
As part of the study,some 662 high school teenagers completed up to 20 questionnaires about their use
of cigarettes to ______________
(55)mood.Secondary schools were selected to provide a mix of French and
English participants,urban and rural schools,and schools ______________(56)in high,moderate and low so-
cioeconomic neighbourhoods.
Participants were divided into three
______________ (57):never smokers;smokers who did not use ciga-
rettes to self-medicate,improve mood or physical
______________ (58);smokers who used cigarettes to self-
medicate.Depressive symptoms were measured using a scale that asked how often participants felt too tired
to do things;had
______________ (59)going to sleep or staying asleep;felt unhappy,sad,or depressed;felt
hopeless about the future;felt anxious or tense;and worried too much about things.
" Smokers who used cigarettes as mood
______________( 60 ) had higher risks of elevated（提升）depres-
sive symptoms______________ (61)teens who had never smoked,"says co-researcher Jennifer O'Loughlin,a
professor at the University of Montreal Department of Social and Preventive Medicine."Our study found that
teen smokers who reported emotional benefits from smoking are_______________(62)higher risk of developing
depressive symptoms."
The______________ (63)between depression and'smoking exists______________(64)among teens that use
cigarettes to feel better."It's ______________(65)to emphasize that depressive symptom scores were higher
among teenagers who reported emotional benefits from smoking after they began to smoke,"says Dr. Chaiton.
_________(59)
A:time
B:courage
C:trouble
D:energy
共用题干
New Changes in American Life
Once it was possible to define male and female roles easily by the division of labor. Men
worked outside the home and earned the income to support their families,while women cooked the
meals and took care of the home and the children._______(46)But by the middle of this century,men's and women's roles were becoming less firmly fixed.
In the 1950s,economic and social success was the goal of the typical American. But in the
1960 s a new force developed called the counterculture._______(47)The counterculture presented men and women with new role choices. Taking more interest in childcare,men began to share
child-raising tasks with their wives. In fact,some young men and women moved to communal
homes or farms where the economic and childcare responsibilities were shared equally by both sexes._______(48)Some young men refused to be drafted as soldiers to fight in the war in Viet-nam。
In terms of numbers,the counterculture was not a very large group of people._______(49)
Working men of all classes began to change their economic and social patterns.Industrial workers and business executives alike cut down on“overtime”work so that they could spend more leisure time with their families .Some doctors,lawyers,and teachers turned away from high paying situations to practice their professions in poorer neighborhoods.
In the 1970s,the feminist movement,or women's liberation,produced additional economic and social changes.Women of all ages and at all levels of society were entering the work force in greater numbers._______(50)But some women began to enter traditionally male occupations: police work,banking,dentistry,and construction work.Women were asking for equal work,and equal opportunities for promotion.
Today the experts generally agree that important changes are taking place in the roles of men and women .Naturally,there are difficulties in adjusting to these transformations.
_______(47)
A: In addition,many Americans did not value the traditional male role of soldier.
B:Most of them still took traditional women's jobs as public school teaching,nursing,and secretarial work.
C: These roles were firmly fixed for most people,and there was not much opportunity for women to exchange their roles.
D: But its influence spread to many parts of American society.
E: The people involved in this movement did not value the middle-class American goals.
F: A great many jobs that used to belong to men are now taken by women.
New Changes in American Life
Once it was possible to define male and female roles easily by the division of labor. Men
worked outside the home and earned the income to support their families,while women cooked the
meals and took care of the home and the children._______(46)But by the middle of this century,men's and women's roles were becoming less firmly fixed.
In the 1950s,economic and social success was the goal of the typical American. But in the
1960 s a new force developed called the counterculture._______(47)The counterculture presented men and women with new role choices. Taking more interest in childcare,men began to share
child-raising tasks with their wives. In fact,some young men and women moved to communal
homes or farms where the economic and childcare responsibilities were shared equally by both sexes._______(48)Some young men refused to be drafted as soldiers to fight in the war in Viet-nam。
In terms of numbers,the counterculture was not a very large group of people._______(49)
Working men of all classes began to change their economic and social patterns.Industrial workers and business executives alike cut down on“overtime”work so that they could spend more leisure time with their families .Some doctors,lawyers,and teachers turned away from high paying situations to practice their professions in poorer neighborhoods.
In the 1970s,the feminist movement,or women's liberation,produced additional economic and social changes.Women of all ages and at all levels of society were entering the work force in greater numbers._______(50)But some women began to enter traditionally male occupations: police work,banking,dentistry,and construction work.Women were asking for equal work,and equal opportunities for promotion.
Today the experts generally agree that important changes are taking place in the roles of men and women .Naturally,there are difficulties in adjusting to these transformations.
_______(47)
A: In addition,many Americans did not value the traditional male role of soldier.
B:Most of them still took traditional women's jobs as public school teaching,nursing,and secretarial work.
C: These roles were firmly fixed for most people,and there was not much opportunity for women to exchange their roles.
D: But its influence spread to many parts of American society.
E: The people involved in this movement did not value the middle-class American goals.
F: A great many jobs that used to belong to men are now taken by women.
共用题干
Germs（细菌）on Banknotes
People in different countries use different types of money:yuan in China,pesos in Mexico,pounds in the United Kingdom,dollars in the United States,Australia and New Zeal-and. They may use different currencies,but these countries,and probably all countries,still have one thing in______(1):germs on the banknotes.
Scientists have been studying the germs on money for well over 100 years. At the turn of the 20th______(2),some researchers began to suspect that germs living on money could spread disease.
Most studies of germy money have looked at the germs on the currency______(3)one country. In a new study,Frank Vriesekoop and other researchers compared the germ populations found on bills of different______(4).
Vriesekoop is a microbiologist at the University of Ballarat in Australia. He led the stud-y,which compared the germ populations found on money______(5)from 10 nations. The scientists studied 1,280 banknotes in total;all came from places where people buy food,like supermarkets,street vendors and cafes,______(6)those businesses often rely on cash.
Overall,the Australian dollars hosted the fewest live bacteria一no more than 10 per square centimeter. Chinese yuan had the______(7）about 100 per square centimeter. Most of the germs on money probably would not cause harm.
What we call“paper money”_________(8)isn't made from paper. The U. S. dollar,for ex- ample,is printed on fabric that is mostly cotton. Different countries may use different______(9)to print their money. Some of the currencies studied by Vriesekoop and his team,such as the American dollar,were made from cotton. Others were made from polymers.
The three______(10)with the lowest numbers of bacteria were all printed on poly-mers. They included the Australian dollar,the New Zealand dollar and some Mexican pesos.
The______(11)currencies were printed on fabric made mostly of cotton. Fewer germs lived on the polymer notes. This______(12)suggests that germs have a harder time staying alive on polymer surfaces. Scientists need to do more studies to understand______(13)germs live on, mon-ey—and whether or not we need to be concerned. Vriesekoop is now starting a study that will______(14)the amounts of time bacteria can stay alive on different types of bills.
Whatever Vriesekoop finds,the fact remains:Paper money______(15)germs. We should wash our hands after touching it;After all,you never know where your money's been. Or what's living on it.
6._________
A: because
B: though
C: so
D: when
Germs（细菌）on Banknotes
People in different countries use different types of money:yuan in China,pesos in Mexico,pounds in the United Kingdom,dollars in the United States,Australia and New Zeal-and. They may use different currencies,but these countries,and probably all countries,still have one thing in______(1):germs on the banknotes.
Scientists have been studying the germs on money for well over 100 years. At the turn of the 20th______(2),some researchers began to suspect that germs living on money could spread disease.
Most studies of germy money have looked at the germs on the currency______(3)one country. In a new study,Frank Vriesekoop and other researchers compared the germ populations found on bills of different______(4).
Vriesekoop is a microbiologist at the University of Ballarat in Australia. He led the stud-y,which compared the germ populations found on money______(5)from 10 nations. The scientists studied 1,280 banknotes in total;all came from places where people buy food,like supermarkets,street vendors and cafes,______(6)those businesses often rely on cash.
Overall,the Australian dollars hosted the fewest live bacteria一no more than 10 per square centimeter. Chinese yuan had the______(7）about 100 per square centimeter. Most of the germs on money probably would not cause harm.
What we call“paper money”_________(8)isn't made from paper. The U. S. dollar,for ex- ample,is printed on fabric that is mostly cotton. Different countries may use different______(9)to print their money. Some of the currencies studied by Vriesekoop and his team,such as the American dollar,were made from cotton. Others were made from polymers.
The three______(10)with the lowest numbers of bacteria were all printed on poly-mers. They included the Australian dollar,the New Zealand dollar and some Mexican pesos.
The______(11)currencies were printed on fabric made mostly of cotton. Fewer germs lived on the polymer notes. This______(12)suggests that germs have a harder time staying alive on polymer surfaces. Scientists need to do more studies to understand______(13)germs live on, mon-ey—and whether or not we need to be concerned. Vriesekoop is now starting a study that will______(14)the amounts of time bacteria can stay alive on different types of bills.
Whatever Vriesekoop finds,the fact remains:Paper money______(15)germs. We should wash our hands after touching it;After all,you never know where your money's been. Or what's living on it.
6._________
A: because
B: though
C: so
D: when
共用题干
The Impact of Antarctic Ozone Hole
The Antarctic ozone（臭氧）hole is changing weather patterns across the Southern Hemisphere （半球）,even affecting the tropics,scientists have concluded. The scientists______(51)the new study added the ozone hole into standard climate models to_______(52)how it might have affected winds and rains. They say rainfall has moved further south towards the pole and the effect has been_______(53)strong over Australia.
And of_______(54)interest was the southward of the Southern Hemisphere jet stream. These high一altitude winds are_______(55)to determining weather patterns,in both hemispheres. Much of the cold weather felt in the UK_______(56)the last couple of winters,for example,was caused by blocking of the Northern Hemisphere stream.
The team found that overall,the ozone hole has_______(57)in rainfall moving south along with the winds._______(58)there are regional differences,particularly concerning Australia. In terms of the average for that zone,the ozone hole_______(59)about a 10% change一but for Australia,it's about 35%.
Their modeling indicated that global warming_______(60)greenhouse gas emissions is also a factor in changing rainfall patterns.
Natural climate cycles are also thought to be important here,as different rainfall patterns were _______(61)in the era before ozone depletion（消耗）and late 20th Century warming.
Although the_______(62)international organization has significantly checked emissions of harmful substances,they_______(63)for decades in the atmosphere,and so their effects are still being felt.Earlier,and international organization forecast that even the Antarctic ozone hole一which is more severe than its_______(64)in the Northern Hemisphere一should be_______(65)by 2045—2060.
_________(57)
A:resulted
B:drawn
C:brought
D:drop
The Impact of Antarctic Ozone Hole
The Antarctic ozone（臭氧）hole is changing weather patterns across the Southern Hemisphere （半球）,even affecting the tropics,scientists have concluded. The scientists______(51)the new study added the ozone hole into standard climate models to_______(52)how it might have affected winds and rains. They say rainfall has moved further south towards the pole and the effect has been_______(53)strong over Australia.
And of_______(54)interest was the southward of the Southern Hemisphere jet stream. These high一altitude winds are_______(55)to determining weather patterns,in both hemispheres. Much of the cold weather felt in the UK_______(56)the last couple of winters,for example,was caused by blocking of the Northern Hemisphere stream.
The team found that overall,the ozone hole has_______(57)in rainfall moving south along with the winds._______(58)there are regional differences,particularly concerning Australia. In terms of the average for that zone,the ozone hole_______(59)about a 10% change一but for Australia,it's about 35%.
Their modeling indicated that global warming_______(60)greenhouse gas emissions is also a factor in changing rainfall patterns.
Natural climate cycles are also thought to be important here,as different rainfall patterns were _______(61)in the era before ozone depletion（消耗）and late 20th Century warming.
Although the_______(62)international organization has significantly checked emissions of harmful substances,they_______(63)for decades in the atmosphere,and so their effects are still being felt.Earlier,and international organization forecast that even the Antarctic ozone hole一which is more severe than its_______(64)in the Northern Hemisphere一should be_______(65)by 2045—2060.
_________(57)
A:resulted
B:drawn
C:brought
D:drop
Unfortunately,the rate of his expenditure surpasses that of his income.
A:precedes
B:dominates
C:exceeds
D:prevails
A:precedes
B:dominates
C:exceeds
D:prevails
She was sent a box of chocolates along with a letter saying she was fired.
A:killed
B:shot
C:dismissed
D:murdered
A:killed
B:shot
C:dismissed
D:murdered
共用题干
Ecosystem
1. The word “ecosystem” is short for ecological（生态的）system. An ecosystem is where living creatures expand within a given area. You can say that an ecosystem is the natural environment where biological organisms（生物）such as plants,animals and humans co-exist in this world. So naturally that includes you and me. Yes,we are all members of an ecosystem!
2 .There are different kinds of ecosystems depending on the type of surface or environ-ment. Most are naturally made such as the ocean or lake and the desert or rainforest.Some are man-made or artificial to encourage co-habitation（同居）between living and non-living things in a monitored environment,such as a zoo or garden.
3 .Plants make up the biggest group of biological creatures within an ecosystem,and that's because they are the natural food producers for everyone. Plants raised in the earth need air and collect sunlight to help them grow. When they grow,the plants and its fruits or flowers eventually become a source of food to animals,microorganisms（微生物）and even hu- mans,of course. Food is then converted to energy for the rest of us to function,and this hap-pens in a never-ending cycle until the living creatures die and break up back in the earth.
4 .Ecosystems are the basis of survival for all living things.We depend on plants and ani-mals for food. In order for us to exist,we need to grow and care about other organisms. We also need to care for the non-living things within our environment like our air and water so we can continue living as a population. Since plants,animals and humans are all of various species（物种）,we all play a role in maintaining the ecosystem.
5 .To preserve our ecosystems,we should stop using too much energy,which happens when we consume more than our share of resources. Humans should not disturb the natural habitat（栖息地）of plants and animals,and allow them to grow healthily for the cycle to con-tinue. Too many people in a habitat can mean displacement（搬迁）: imagine being thrown out of your home because there is no more space for everyone. Worse,overpopulation can also ru- in the environment and cause destruction of existing plants and animals.
Paragraph 3_________
A: What Can We Do to Help Protect Ecosystems?
B: What Are Different types of Ecosystems?
C: What Is an Ecosystem?
D: What Destroys Ecosystems?
E: How Does an Ecosystem Work?
F: Why Are Ecosystems Emportant?
Ecosystem
1. The word “ecosystem” is short for ecological（生态的）system. An ecosystem is where living creatures expand within a given area. You can say that an ecosystem is the natural environment where biological organisms（生物）such as plants,animals and humans co-exist in this world. So naturally that includes you and me. Yes,we are all members of an ecosystem!
2 .There are different kinds of ecosystems depending on the type of surface or environ-ment. Most are naturally made such as the ocean or lake and the desert or rainforest.Some are man-made or artificial to encourage co-habitation（同居）between living and non-living things in a monitored environment,such as a zoo or garden.
3 .Plants make up the biggest group of biological creatures within an ecosystem,and that's because they are the natural food producers for everyone. Plants raised in the earth need air and collect sunlight to help them grow. When they grow,the plants and its fruits or flowers eventually become a source of food to animals,microorganisms（微生物）and even hu- mans,of course. Food is then converted to energy for the rest of us to function,and this hap-pens in a never-ending cycle until the living creatures die and break up back in the earth.
4 .Ecosystems are the basis of survival for all living things.We depend on plants and ani-mals for food. In order for us to exist,we need to grow and care about other organisms. We also need to care for the non-living things within our environment like our air and water so we can continue living as a population. Since plants,animals and humans are all of various species（物种）,we all play a role in maintaining the ecosystem.
5 .To preserve our ecosystems,we should stop using too much energy,which happens when we consume more than our share of resources. Humans should not disturb the natural habitat（栖息地）of plants and animals,and allow them to grow healthily for the cycle to con-tinue. Too many people in a habitat can mean displacement（搬迁）: imagine being thrown out of your home because there is no more space for everyone. Worse,overpopulation can also ru- in the environment and cause destruction of existing plants and animals.
Paragraph 3_________
A: What Can We Do to Help Protect Ecosystems?
B: What Are Different types of Ecosystems?
C: What Is an Ecosystem?
D: What Destroys Ecosystems?
E: How Does an Ecosystem Work?
F: Why Are Ecosystems Emportant?