Washington — The largest ozone (臭氧)hole ever observed has opened up over Antarctica, according to the scientists of the US National Aeronautics and Space Administration (NASA). They believe it is a sign that ozone — destroying gases produced years ago are just now causing the largest quantities of ozone to disappear.
　　This year’s South Pole ozone hole spreads over about 28.5 million square kilometers, an area three times larger than the landmass of the United States.
　　Pictures of the hole have been offered by NASA. The hole appears as a giant blue mass, totally covering Antarctica and stretching to the southern tip of South America.
　　“The last time the ozone hole was close to this size was in 1998, when it spread over about 27.2 million square kilometers,” NASA said.
　　Paul Newman, who works with NASA’s Total Ozone Mapping Spectrometer (TOMS) instrument on a NASA satellite, said ozone watchers had expected a big hole this year, but not this big.
　　The Antarctica ozone hole, first observed in 1985, is caused by the depletion (損耗) of Earth protecting ozone by human-made chemicals such as chlorofluorocarbons, known as CFCs.
　　“Even though these chemicals were not allowed to use from the beginning of 1987, they remain in the atmosphere and will continue to do so for years,” Newman said.
　　“This year’s large hole may have been caused by a change in a swirling high-level air current over Antarctica, which circles the area and contains the zone hole,” Newman said.
56. The text is mainly about ____ .
　 A. the discovery of the largest ozone hole           B. the discovery of the Antarctica ozone hole
　 C. the history of the Antarctica ozone hole          D. the size of the largest ozone hole
57. The time 1985 was talked about in the text because it was when the Antarctica ozone hole ____ .
　 A. was watched by Newman   B. was first closed   C. disappeared  　 D. was first watched
58. There is a giant ozone hole over Antarctica because ____ over there.
　 A. human-made chemicals have protected ozone     B. ozone has protected the earth
　 C. human-made chemicals have destroyed ozone     D. human-made chemicals have increased ozone
56.A。57.D。58.C。

Passage A 本文講述了由于一些化學(xué)物質(zhì)的使用，南極上空的臭氧層被破壞，希望引起人們的重視，
停止使用破壞臭氧層的化學(xué)物質(zhì)，以保護(hù)我們賴以生存的地球。
56.A。主旨大意題�？v觀全文，主要是圍繞著最大的臭氧洞的發(fā)現(xiàn)論述的。
57.D。本題為細(xì)節(jié)考查題。由第六段中的“The Antarctica ozone hole, first observed in 1985...”可得出答案。
58.C。本題為細(xì)節(jié)考查題�？筛鶕�(jù)第六段中的“The Antarctica ozone hole, first observed in 1985, is caused by the depletion (損耗) of Earth-protecting ozone by human-made chemicals...”得出答案。
練習(xí)冊系列答案
相關(guān)習(xí)題

科目：高中英語 來源：不詳 題型：閱讀理解

Shishmaref, an Eskimo village on an island off northwestern Alaska, is falling into the ocean. Giant storm waves have so hit the place—once well buffered by sea ice—that villagers voted in 2002 to leave their ancestral home for the mainland. They are being called one of the first refugees（難民）of global warming.  
“We tend to describe climate change in terms that are abstract—a one degree rise in temperature, an increase in greenhouse gases—but when waves wash away a village, that’s concrete and very emotional,” says Igor Krupnik, an expert at the National Museum of Natural History. “When they lose a piece of their land, they aren’t just losing a certain number of square miles. They are losing part of their history and their memory. They are losing childhood events and grandparents’ tales.”
Before temperatures began to rise in Shishmaref about 30 years ago, 20 to 30 miles of hard sea ice protected the village from powerful fall storms. But the natives say the ice doesn’t freeze as solidly or as soon as it used to and now stretches only six or seven miles, leaving the community of 600 people more exposed. Storms have swept houses into the ocean.
The villagers’ plan is to move to Tin Creek, a site on the Alaska mainland 12 miles away, and they have received $180 million from the government. Residents hope that in their new community they’ll be able to maintain their close ties, continue hunting animals, and keep fishing, much as their ancestors have done for centuries. “People are asking why the government should be spending so much money on so few people,” said a government official. “But people in Alaska are like everyone else. We want to help keep their culture alive.”
小題1:The underlined word “buffered” probably means “______”.  
A．protectedB．destroyedC．preventedD．damaged
小題2:From the passage what do we know about the sea ice around the village in the past?
A．It was very thin and easily broken.
B．It was very thick and smooth.
C．It frozen more solidly and sooner.
D．It frozen more slowly and solidly.
小題3:According to the passage, _____ caused the village to be in danger of disappearing.
A．water pollutionB．global warming
C．a(chǎn)ir pollutionD．human’s actions
小題4:What’s the villagers’ main purpose to rebuild the community?
A．To live more happilyB．To earn money
C．To avoid being washed awayD．To keep their culture alive

查看答案和解析>>

科目：高中英語 來源：不詳 題型：閱讀理解



Everyone agrees that it’s necessary to reduce carbon emissions （排放物） around the world. There is less agreement over exactly how nations should go about achieving a more carbon - free planet. Thus, the environmental equivalent: cap – and – trade carbon emissions, or place a carbon tax on all users?
With cap – and – trade programs, governments limit the level of carbon produced by an industry. Companies that hold their emissions below the cap can sell their remaining allowance on a carbon market, while companies that go beyond their limit must purchase credits on that market. Carbon taxes are more straightforward: a set tax rate is placed on the consumption of carbon with the idea that raising the price will encourage industries and individuals to consume less. At the moment, cap – and – trade has the upper hand, but doesn’t defeat the tax just yet.
Supporters of the tax argue that a cap – and – trade system would be too difficult to administer – and too easily gamed by industries looking to sidestep emissions caps. Cap – and – trade advocates contradict that like all other flat taxes, a carbon collection would relatively burden lower – income families, who spend a greater percentage of their income on energy than rich households.
So which system will have a larger effect on carbon consumption? A 10% carbon tax might reduce the demand for carbon about 5 % or less, according to an analysis by the Carbon Tax Center, an environmental advocacy group. That may not be enough. Businesses and governments haven’t figured out how the two competing systems can work together, but in the end, the world may need both.
1. The passage focuses on_________.
A. programs of collecting taxes
B. systems of reducing carbon emissions
C. reasons for reducing carbon emissions
D. contradictions between the two systems
2. According to the cap – and – trade program, companies_________ .
A. are forbidden to produce carbon emissions
B. are allocated the same amount of carbon consumption
C. can sell their remaining allowance within their limits
D. can sell the extra amount of carbon at a higher price
3. Carbon taxes work by _________.
A. burdening well – off families
B. encouraging industries to consume carbon
C. raising the price for carbon consumption
D. limiting the carbon consumption of industries only
4. The underlined word “cap” in the second paragraph most likely refers to_________.
A. limit                  B. credit                C. level                  D. rate
5. We can learn from the passage_________ .
A. carbon taxes are difficult to carry out
B. cap – and – trade plays a greater role at present
C. cap – and – trade will be preferable in the future
D. carbon taxes will be preferable in the future

查看答案和解析>>

科目：高中英語 來源：不詳 題型：閱讀理解


請閱讀下列文章和相關(guān)信息，并按要求匹配信息。請?jiān)诖痤}卡上將對應(yīng)題號的相應(yīng)選項(xiàng)字母涂黑。
下面是幾則寓言小故事：
小題1:An ant went to the bank of a river to quench its thirst, and being carried away by the rush of the stream, was on the point of drowning. A dove sitting on a tree overhanging the water plucked a leaf and let it fall into the stream close to her. The ant climbed onto it and floated in safety to the bank. Shortly afterwards a birdcatcher came and stood under the tree, aiming at the dove. The ant, perceiving his design, stung him in the foot. In pain the birdcatcher shouted, and the noise made the dove take wing.
小題2:Two men were travelling together, when a bear suddenly met them on their path. One of them climbed up quickly into a tree and hid himself in the branches. The other, seeing that he must be attacked, fell flat on the ground, and when the bear came up and felt him with his snout, and smelt him all over, he held his breath, and pretended to be dead as much as he could. The bear soon left him, for he will not touch a dead body. When he disappeared, the other traveller descended from the tree, and asked his friend what it was the bear had whispered in his ear. “He gave me this advice,” his companion replied. “Never travel with a friend who deserts you at the approach of danger.”
小題3:A prince had some monkeys trained to dance. Being naturally good at learning, they showed themselves excellent pupils, and in their rich clothes and masks, they danced as well as any of the courtiers. Their performance was often repeated with great applause, till on one occasion a courtier, bent on mischief, took from his pocket a handful of nuts and threw them upon the stage. The monkeys at the sight of the nuts forgot their dancing and became (as indeed they were) monkeys instead of actors. Pulling off their masks and tearing their robes, they fought with one another for the nuts. The dancing spectacle thus came to an end in the laughter and ridicule of the audience.
小題4:A cock was once strutting up and down the farmyard among the hens when suddenly he noticed something shining in the straw. "Ho! ho!" said he, "that’s for me," and soon rooted it out from beneath the straw. It turned out to be a pearl that by some chance had been lost in the yard. “You may be a treasure,” signed the cock, “to man, but for me I would rather have a single barley-corn.”
小題5:An old man on the point of death summoned his sons around him to give them some parting advice. He ordered his servants to bring in a bunch of sticks, and said to his eldest son: "Break it." The son tried hard, but with all his efforts was unable to break the bundle. The other sons also tried, but none of them was successful. “Untie it,” said the father, “and each of you take a stick.” When they had done so, he called out to them: “Now, break,” and each stick was easily broken.
請閱讀下面的故事寓意，然后匹配與之對應(yīng)的小故事。
A．Not everything you see is what it appears to be.
B．One man’s pleasure may be another’s pain. / One man’s meat is another’s poison,
C．Misfortune tests the sincerity of friends.
D．One good turn deserves another.
E. Union gives strength.
F. Precious things are for those that can prize them.

查看答案和解析>>

科目：高中英語 來源：不詳 題型：完形填空

For those who are conditioned to think that learning only happens in a classroom, the world of self-learning can be a little daunting. How do we best take   1  of these new opportunities?
Your interest in the subject is the essential driver of success. You can’t learn what you do not want to learn. Emotion is an important part of the learning   2  . If you are even moderately interested in a subject, give yourself  a chance. The key is to get started. If you can create some pleasurable   3 , you may find that the subject grows on you.
Don’t expect to understand things, much less remember them, the first time you study them. Trust that things will get clearer   4  your brain comes to grips with new information. It is like a cross-word puzzle. As you start to put the pieces together, or string the words together, the full picture becomes clearer. The brain learns all the time, but    5   its own schedule. Learning does not take place according to a schedule laid down by a curriculum or teacher. Some things are easier to learn than others. Some things just take    6  to click in. Keep at it, and you will gradually find that things that seem difficult at first , will become easy with time.
Your brain is struggling to form patterns to    7   new input from your learning activities. Sometimes, no matter how long you focus on one subject, your brain is not going to pick it up. If you are stuck, move   8  . Then cover the same general information from a different source, a different book, or a podcast, or an online lecture or a video. Try to become a  grazing learner, roaming the countryside,     9  a feedlot learner, just standing there in one spot. The broader your base, the easier it is to learn. Just as the “rich get richer”, the more you know,     10  you can learn.
Take full advantage of the Internet, iTunes, and     11  mobile devices, not to mention good old-fashioned books and magazines. Learn during “dead time”. Listen in your car, on the train, or   12  jogging. Have your learning with you while waiting in the doctor’s office, or listen while checking out at the supermarket. Anytime is     13 time. Remember, you are learning through exposure, not by nailing things down. It is more like moisture accumulation in a    14  , rather than building a brick wall.
The more varied your learning content, and the more varied the ways in which you learn, the       15 the puzzle will become. Different learning activities suit different people, at different times of the day. Vary your activities in order to keep your interest level   16   . Even if listening and reading work best for you, treat yourself to the odd video lecture, or get-together with other learners. This will renew your batteries.
The “l(fā)oneliness of the distance learner” is a thing of the   17 . Join a learning communityon the web, where members share their knowledge and experience. Search for the communities that suit your interests and learning style. You will find encouragement, advice and stimulus from fellow learners,        18   from tutors, teachers and coaches. In these communities, you can measure your progress against your own goals, or compare your experience     19   that of other learners. You can even teach and help others, which is a great way to learn.
Never has it been easier nor more exciting to be a learner. Let constant learning be a major part of your life-style. The   20       will be constant, personally, socially, and professionally.
(   ) 1. A. advantage    B. place               C. possession         D. example
(   ) 2. A. progress      B. process             C. pressure            D. proposal
(   ) 3. A. roads          B. streets              C. routines            D. building
(  ) 4. A. with           B. if                     C. unless               D. as
(   ) 5. A. on              B. to                   C. with                D. for
(   ) 6. A. shorter               B. sooner              C. longer              D. lower
(   ) 7. A. take with     B. com with          C. go with            D. cope with
(   ) 8. A. down          B. on                   C. away               D. off
(   ) 9. A. more than   B. less than           C. rather than               D. other than
(   ) 10. A. less           B. quicker             C. lower                      D. more
(   ) 11. A. same         B. similar             C. familiar            D. various
(   ) 12. A. while               B. before              C. after                D. if
(   ) 13. A. playing     B. learning            C. talking             D. speaking
(   ) 14. A. cloud               B. sky                 C. earth               D. sea
(   ) 15. A. cleaner      B. clearer              C. harder              D. lower
(   ) 16. A. down               B. up                    C. in                   D. out
(   ) 17. A. present      B. day                  C. past                 D. night
(   ) 18. A. as long as B. as far as            C. as well as          D. as soon as
(   ) 19. A. without     B. with                C. to                   D. beyond
(   ) 20. A. awards      B. words               C. remarks            D. rewards

查看答案和解析>>

科目：高中英語 來源：不詳 題型：閱讀理解

How Room Designs Affect Our Work and Feelings
Architects have long had the feeling that the places we live in can affect our thoughts, feelings and behaviors. But now scientists are giving this feeling an empirical（經(jīng)驗(yàn)的，實(shí)證的） basis. They are discovering how to design spaces that promote creativity, keep people focused and lead to relaxation.
Researches show that aspects of the physical environment can influence creativity. In 2007, Joan Meyers-Levy at the University of Minnesota, reported that the height of a room's ceiling affects how people think. Her research indicates that higher ceilings encourage people to think more freely, which may lead them to make more abstract connections. Low ceilings, on the other hand, may inspire a more detailed outlook.
In additions to ceiling height, the view afforded by a building may influence an occupant's ability to concentrate. Nancy Wells and her colleagues at Cornell University found in their study that kids who experienced the greatest increase in greenness as a result of a family move made the most gains on a standard test of attention.
Using nature to improve focus of attention ought to pay off  academically, and it seems to, according to a study led by C. Kenneth Tanner, head of the School Design & Planning Laboratory at the University of Georgia. Tanner and his team found that students in classrooms with unblocked views of at least 50 feet outside the window had higher scores on tests of vocabulary, language arts and maths than did students whose classrooms primarily overlooked roads and parking lots.
Recent study on room lighting design suggests than dim（暗淡的） light helps people to loosen up. If that is true generally, keeping the light low during dinner or at parties could increase relaxation. Researchers of Harvard Medical School also discovered that furniture with rounded edges could help visitors relax.
So far scientists have focused mainly on public buildings. "We have a very limited number of studies, so we're almost looking at the problem through a straw（吸管）," architect David Allison says. "How do you take answers to very specific questions and make broad, generalized use of them? That's what we're all struggling with."
小題1:What does Joan Meyers-Levy focus on in her research?
A．Light.B．Ceilings.C．Windows.D．Furniture.
小題2:The passage tells us that ______.
A．the shape of furniture may affect people's feelings
B．lower ceilings may help improve students' creativity
C．children in a dim classroom may improve their grades
D．students in rooms with unblocked views may feel relaxed
小題3:The underlined sentence in the last paragraph probably means that ______.
A．the problem is not approached step by step
B．the researches so far have faults in themselves
C．the problem is too difficult for researchers to detect
D．research in this area is not enough to make generalized patterns
小題4:Which of the following shows the organization of the passage?
CP: Central Point    P: Point   SP: Sub-point（次要點(diǎn)）   C: Conclusion

查看答案和解析>>

科目：高中英語 來源：不詳 題型：完形填空

完形填空（共15小題，每題1分，滿分15分）
When I was a young child, my parents often told me that it was time that taught a man everything. I didn’t understand and wondered why _31_ had such a big influence _32_ a person. I thought I could grow up quickly to find it out as an adult. But now, _33_ I come to knock at the door of adulthood, I feel _34_ to express my own opinion on this saying. I know that I am just a high school student with very few experiences. There are still many things waiting for me in the future, yet I would like to express myself in a childish voice.
I once read this sentence, “To make this world a happy place in which to live, you had better _35_ yourself and your heart, instead of the whole world.” I was shocked. It made me think about _36_ itself. There are so many things around us that _37_ our will. We can’t force life to follow our wishes. The earth won’t stop turning no matter whether we _38_ it or not . What we can do is just to make  _39_ suit the world. I think we should learn to accept _40_ life gives us, no matter whether it’s the spring sunlight or the winter snowfall, and try to be happy.
The pop song Grandmother by Jay Chou is my favorite. I’m deeply moved by this beautiful song. I always try to _41_ every pleasant thing in my life, but now I see that I don’t catch most of the pleasant moments. It is more likely that they slip by（流逝）and leave you _42_ regretful. I realize that I’m not just living for myself and that there are others I should _43_ such as my parents, friends, and so on. They all pay attention to my growing up, _44_ it’s just a little progress.
Everyone has his or her own _45_ towards life, positive or negative. It doesn’t  matter, I think. There is one rule that should be obeyed and that’s to make this world better.
31. A. man
B. time
C. thing 
D. parent
32. A. about
B. with
C. on
D. in
33. A. before
B. after
C. as 
D. when
34. A. glad
B. angry  
C. tired 
D. anxious
35. A. praise 
B. change
C. exchange 
D. force
36. A. life 
B. money
C. heart
D. world
37. A. go with
B. go along 
C. go for
D. go against
38.A. receive 
B. check 
C. refuse  
D. accept
39.A. himself 
B. themselves
C. ourselves 
D. yourself
40. A. what
B. that 
C. which 
D. why
41. A. touch
B. escape 
C. catch
D. lose
42. A. feeling
B. looking 
C. remaining
D. proving
43. A. make of
B. speak of  
C. hear of
D. think of
44. A. in case 
B. in that
C. even if  
D. as if
45. A. idea
B. way 
C. view
D. attitude

查看答案和解析>>

科目：高中英語 來源：不詳 題型：閱讀理解

"It takes an entire village to raise a child." That's an old proverb (諺語) that is being quoted more and more often these days. And I'm pleased about that.
Today, more and more schools are reaching out to involve parents, community members and businesses（工商企業(yè)）to help shape a child's future.
Parents need to be involved in their children's education in many ways. Helping children with homework and studying, going on a field trip, teaching a craft（手工藝）or coaching a child's sports team are all great ways to be involved with your child's education. And don't forget to communicate with teachers ---- they need and respect your input. Studies show that children learn more and schools function better when parents and schools work together. It's important to stay in touch with your child's education all through his or her school career.
Communities can help children create and achieve new goals. Help with homework, read to a child, coach a children's team, or provide emotional（情感上的）support. Help solve problems and build self-esteem（自尊心）. Kids need role models and advisers can be role models by sharing their experiences and wisdom.
Businesses can also help shape our children's future. Invite a class from your local school to visit your workplace. You may be providing a glimpse that opens a new world of possibilities. Show students what goes on during a typical day. Give a mini course for students: how to use a computer; how products are made; how machinery works. You may have a developing electrician, teacher, nurse, or even a newspaper reporter on your hands.
It really does take an entire village to raise a child．So share the responsibility（職責(zé)）-- and the joy -- of bringing a child to his or her full potential（潛能）.
小題1:The implied advice in the proverb "It takes an entire village to raise a child." is that ______.
A．All the people in a village should give food to a child.
B．Schools, parents, and other organizations should share the responsibility of shaping a
child's future.
C．Children should be brought up in the village where they were born.
D．Schools should be set up in the village where a child was raised.
小題2:The text was written mainly for ______.
A．parents and members in organizations
B．teachers and students
C．newspaper reporters and developing electricians
D．education experts and government officials
小題3: Students can get developed in practical working skill through ______.
A．parental involvementB．community activities
C．business training D．school teaching
小題4:Which is NOT true according to the passage?
A．Parents play an important part in children’s education.
B．Communities have not a bit effect on the way to new and high ideal.
C．Educating a child well demands of the work not only from school but from other
organizations.
D．Businesses may arrange some training courses for students.

查看答案和解析>>

科目：高中英語 來源：不詳 題型：閱讀理解

Every autumn, as families across the United States get ready to send their kids to college, the economics of higher education receive renewed attention. College is expensive and becoming more so in the U. S. The situation raises two questions: Why does it cost so much, and how can students and their families afford it?
Several studies published in the past few weeks reflect on these questions. The findings provide comfort to poor families.
First, it appears that only the minority actually pay the "high price". A study by the US Education Department's National Center for Education Statistics found that 55 percent of college students last year received some forms of help--scholarships, loans(貸款)or jobs.
Other factors are also at work. The government has increased the size of its grants (補(bǔ)助金)to lower-income students. Grants, unlike loans, don't have to he repaid and are awarded only to college students who have not earned a bachelor's or professional degree.
At the same time, most colleges are spending more on undergraduate education than they are collecting in tuition fees. A study, which is part of the Williams College Project on the Economics of Higher Education, reaches the conclusion that on average colleges “subsidize (贊助)” their students. The results of these studies, however, leave unanswered the questions of whether educational costs are higher than they need to be. Some experts argue that much of the college cost results from educational competition for fame, students and facilities.
This puts upward pressure on tuition, hut many colleges feel that good fame will enable them to attract students even if they charge them more.
Therefore, until something important changes in the marketplace, costs seem likely to continue rising. And American families will continue to beat down the doors of the high price "college in the end．
小題1: From the fourth paragraph of the passage we can conclude that _______.
A．American families earn only a little money every year
B．American families pay little attention to education
C．American students often have to stop their studies
D．American colleges have different ways to help poor students
小題2: In the writer's opinion, for students from lower-income families, the best way is ________.
A．to find a good job and make money
B．to borrow money from the banks
C．to ask for grants
D．to borrow money from friends
小題3: It can be inferred that in America _______.
A．famous colleges only accept rich students.
B．famous colleges charge their students more money
C．the government spends little money on education
D．families often break the doors of colleges
小題4: The writer of this passage seems to hold the opinion that _______.
A．college fees rise too fast for poor families.
B．poor people should borrow money from banks
C．poor people don’t need to send their children to college
D．colleges should get more money to improve themselves

查看答案和解析>>

同步練習(xí)冊答案