Against the supposition(假設(shè))that forest fires in Alaska, Canada and Siberia warm the climate, scientists have discovered that cooling may occur in areas where burnt trees allow more snow to mirror more sunlight into space.
This finding suggests that taking steps to prevent northern forest to limit the release of greenhouse gases may warm the climate in northern regions. Usually large fires destroyed forests in these areas over the past decade. Scientists predict that with climate warming, fires may occur more frequently over next several centuries as a result of a longer fire season. Sunlight taken in by the earth tends to cause warming, while heat mirrored back into space tends to cause cooling.
This is the first study to analyze all aspects of how northern fires influence climate. Earlier studies by other scientists have suggested that fire in northern regions speed up climate warming because greenhouse gases from burning trees and plants are released into the atmosphere and thus trap heat.
Scientists found that right after the fire, large amounts of greenhouse gases entered the atmosphere and caused warming. Ozone(臭氧)levels increased, and ash from the fire fell on far-off sea ice, darkening the surface and causing more radiation from the sun to be taken in. The following spring, however, the land within the area of the fire was brighter than before the fire, because fewer trees covered the ground. Snow on the ground mirrored more sunlight back into space, leading to cooling.
“We need to find out all possible ways to reduce the growth of greenhouse gases in the atmosphere.” Scientists tracked the change in amount of radiation entering and leaving the climate system as a result of the fire, and found a measurement closely related to the global air temperature. Typically, fire in northern regions occurs in the same area every 80 to 150 years. Scientists, however, found that when fire occurs more frequently, more radiation is lost from the earth and cooling results. Specifically, they determined when fire returns 20 years earlier than predicated, 0.5 watts per square meter of area burned are soaked up by the earth from greenhouse gases, but 0.9 watts per square meter will be sent back into space. The net effect is cooling. Watts are used to measure the rate at which energy is gained or lost from the earth.
小題1:According to the new findings, taking steps to prevent northern forest fires may _______.
   
A.result in a warming climate
B.cause the forest fires to occur more frequently
C.lead to a longer fire season
D.protect the forests and the environment there
小題2: The following are all the immediate effects after a forest fire EXCEPT _________.
A.large amounts of greenhouse gases enter the atmosphere
B.the levels of ozone which is a type of oxygen increase
C.snow on the ground mirrors more sunlight back into space
D.a(chǎn)shes from the fire fall on the ice surface and take in more radiation from the sun
小題3:Earlier studies about northern forest fires _________.
A.a(chǎn)nalyze all aspects of how northern fires influence climate
B.indicate that forest fires will pollute the atmosphere
C.suggest that people should take measures to protect environment
D.suggest that the fires will speed up climate warming
小題4:The underlined part “soaked up” in the last paragraph most probably means ________.
A.releasedB.a(chǎn)bsorbedC.createdD.distributed
小題5:From the passage we can draw a conclusion that forest fires in Alaska, Canada and Siberia may __________.
A.warm the climate as the supposition goes
B.a(chǎn)llow more snow to reflect more sunlight into space and thus cool the climate
C.destroy large areas of forests and pollute the far-off sea ice
D.help to gain more energy rather than release more energy

小題1:A
小題1:C
小題1:D
小題1:B
小題1:B
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科目:高中英語(yǔ) 來(lái)源:不詳 題型:完形填空

Where did all the tigers go? That’s what Indian Prime Minister Manmohan Singh wants to know. India’s Sariska Project Tiger Reserve, once home to 26 tigers, is now home to none. Singh has ordered a police investigation into the   39 ,and created a new taskforce to save the   40  animals.
Tigers are an endangered species(物種). Half of the world’s tiger   41  live in India. For years, tigers have been disappearing from India’s national parks, but Sariska may be the last straw. And the government has to react.
On Thursday, Singh held the first meeting of   42  officials, wildlife experts, and related leaders, aiming to count the nation’s remaining tigers, and to come up with a plan to keep them safe.
It is not hard to guess why the tigers are disappearing. Poachers (偷獵者) can   43  the big cats for $50,000 each. Tiger skin and bones are popular in Chinese   44 . A single tiger tooth can fetch $120. Recently, a group of poachers admitted killing ten tigers in Sariska and were   45 .
“Indian tiger poaching is probably the biggest conservation problem in modern times.” said Belinda Wright, the head of the Wildlife Protection Society of India.
However, poaching isn’t the only   46 . Many poachers use advanced technologies, like night glasses and long–range binoculars. Forest security officers are paid so   47  that few of them bother to track down the poachers. Even if a security guard were to find a poacher, many carry only a stick to make him obey the law.
Tiger fans hope that Singh’s plans mean end for the poachers and   48  for the endangered species.
小題1:
A.project B.disappearanceC.reserveD.home
小題2:
A.dangerousB.huge C.rare D.fierce
小題3:
A.populationB.percentageC.generationD.group
小題4:
A.businessB.tradeC.a(chǎn)rmy D.forest
小題5:
A.raiseB.hunt C.sell D.shoot
小題6:
A.foodB.traditionC.cultureD.medicine
小題7:
A.foundB.a(chǎn)rrested C.prohibitedD.controlled
小題8:
A.problemB.worryC.crimeD.factor
小題9:
A.commonlyB.poorlyC.slightly D.highly
小題10:
A.success B.lampC.hope D.a(chǎn)chievement

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科目:高中英語(yǔ) 來(lái)源:不詳 題型:閱讀理解

Water problems in the future will become more intense and more complex. Our increasing population will tremendously increase urban wastes, primarily sewage. On the other hand, increasing demands for water will decrease substantially the amount of water available for diluting wastes. Rapidly expanding industries which involve more and more complex chemical processes will produce larger volumes of liquid wastes, and many of these will contain chemicals which are noxious. To feed our rapidly expanding population, agriculture will have to be intensified. This will involve ever - increasing quantities of agricultural chemicals. From this, it is apparent that drastic steps must be taken immediately to develop corrective measures for the pollution problem.
There are two ways by which this pollution problem can be dwindled(減少). The first relates to the treatment of wastes to decrease their pollution hazard . This involves the processing of solid wastes "prior to" disposal and the treatment of liquid wastes, or effluents, to permit the reuse of the water or minimize pollution upon final disposal .
A second approach is to develop an economic use for all or a part of the wastes. Farm manure is spread in fields as a nutrient or organic supplement. Effluents from sewage disposal plants are used in some areas both for irrigation and for the nutrients contained. Effluents from other processing plants may also be used as a supplemental source of water. Many industries, such as meat and poultry processing plants, are currently converting former waste products into marketable byproducts. Other industries are potential economic uses for waste products.
小題1:The purpose of this passage is ________.
A.to alert the reader to the dwindling water supply
B.to explain industrial uses of water
C.to acquaint the reader with water pollution problems
D.to demonstrate various measures to solve the pollution problem
小題2:Which of the following points is NOT included in the passage?
A.Industrial development includes the simplification of complex chemical processes.
B.Diluting wastes needs certain amount of water.
C.Demands for water will go up along with the expanding population .
D.Intensive cultivation of land require more and more chemicals.
小題3:The reader can conclude that _________.
A.countries of the world will work together on pollution problems
B.byproducts from wastes lead to a more prosperous marketplace
C.science is making great progress in increasing water supplies
D.some industries are now making economic use of wastes
小題4:The author gives substance to the passage through the use of________.
A.interviews with authorities in the field of water controls
B.opinions and personal observations
C.definitions which clarify important terms
D.strong arguments and persuasions
小題5:The underlined words "prior to"(para. 2)probably man________.
A.a(chǎn)fterB.duringC.beforeD.beyond

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科目:高中英語(yǔ) 來(lái)源:不詳 題型:閱讀理解

The food on the moon has come a long way from the freeze – dried bread to half – dried food. They have changed a lot in the past few years. And now US scientists want to grow vegetables in mini – greenhouses on the moon.
Scientists say they are looking forward to a time when people on the moon or even Mars will be able to eat green and fresh vegetables. Paragon Space Development Corporation has shown people what it called the first step toward growing flowers – and finally food – on the moon.
Paragon, which is a partner of NASA in experiments at the International Space Station, calls it a “Lunar Oasis (綠洲)”
This is a closed greenhouse placed in a metal box. It is designed to safely land a laboratory plant on the moon surface, and protect it while it grows.
The small greenhouse is to be sent up into space by Odyssey Moon Ltd, which takes part in the Google Lunar X Prize. This competition offers $ 20 million to any company which can send up, land and operate a lunar rover (月面車) on the moon surface.
Leaders of Paragon say future testing of the “Lunar Oasis” will be driven by Odyssey’s flight schedule, which will not happen until 2012 at the earliest.
When it is sent up, the greenhouse will have the seeds (種子) of cabbage inside it. Because they go from seed to flower in just 14 days, they can complete their life cycle in a lunar night.
“Growing plants on the Moon or Mars seems so far away, but it is important that we do this research now,” Paragon president Jane Poynter said. “It takes a long time to do a lot of research.”
小題1:What do we know about “Lunar Oasis” from the passage?
A.It is made of wood by scientists.
B.It is open for people who are on the Mars.
C.It can carry different kinds of plants to the moon.
D.It will protect plats to grow on the moon.
小題2:The seeds of cabbage are chosen because they         .
A.have beautiful followersB.can grow very quickly
C.can grow in the greenhouseD.can grow bigger than other seeds
小題3:According to the passage, Paragon Space Development Corporation      .
A.has produced food on the moonB.is in charge of NASA in experiments
C.takes part in the Google Lunar X PrizeD.may test “Lunar Oasis” in the future
小題4:What does Jane Poynter think of growing plants on other planets?
A.It is possible.B.It can be realized easily
C.It is impossible.D.It will come true very soon.
小題5:What would be the best title for the passage?
A.Exploring the Moon and the MarsB.Making Use of the Lunar Rover
C.Researching Fresh Food on the MoonD.Seeking the Living Things on the Moon

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科目:高中英語(yǔ) 來(lái)源:不詳 題型:閱讀理解

Colleges may try to do a lot to prepare students for study abroad – telling about culture shock, warning about homesickness, recommending books about the country. But when it comes to adjusting to campus life when they return, schools haven't done as much, even though the transition is sometimes almost as difficult.
"They can feel disoriented and depressed. They find things are not exactly the way they were when they left," said Antonio Jimenez, director of the Center for International Affairs at California State University Channel Islands in Camarillo, California, US. "They find that people don't care much about their experiences."
Some colleges are now rethinking their approach to study abroad, recognizing that students might need almost as much help adjusting to life back home as they did getting ready to leave: students experience a sort of reverse culture shock when they return to the US.
They might be troubled by the wealth and waste they see back home or they might feel homesick for their new country and its customs. And when they try to talk about their experiences, people quickly lose interest, especially if they haven't lived abroad themselves.
Down the road, they also might find it difficult to translate their time abroad into experience that an employer finds attractive.
Some California universities have organized conferences to help students make the most of their time abroad. During a one-day event, students learn how to adjust after living abroad, talk about their experiences and incorporate them into their lives and future careers.
Blythe Cherney, 22, a senior who has studied in Thailand and Britain, found the workshops helpful.
"Any experience abroad does have an effect on you," Cherney said. "When you come back, it's important to talk about it, especially with people who know what you've been through."
Yet most universities focus more on preparation than reorientation. When students return, they might have a welcome home reception. But for the most part, universities figure students can fend for themselves.
小題1:Which of the following is NOT the trouble that students face when they return from studying overseas?  
A.Culture shockB.Homesick for their new country
C.Losing interest in their homelandD.Difficult transition
小題2:The wrier is _________ the help colleges offer for the students when they return from studying overseas?   
A.pleased withB.dissatisfied with
C.indifferent withD.proud of
小題3:The underlined word “workshops” refers to _________.   
A.conferences where people share their experiences
B.buildings where machines are made
C.shops where books are bought
D.labs where experiments are conduct
小題4:After the students come back_________.                
A.They will easily find a good job.
B.People are very interested in their experiences.
C.They have to waste time and money.
D.They are confused and disappointed.
小題5:What is the passage mainly about?     
A.Overseas students experience culture shock in foreign countries.
B.Some universities offer to help students in need.
C.Returned students find it difficult to translate their time abroad into experience.
D.Returning from studying overseas, students face more trouble than they expected.

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科目:高中英語(yǔ) 來(lái)源:不詳 題型:閱讀理解

When I asked my daughter which item she would keep; the phone, the car, the cooker, the computer, the TV, or her boyfriend, she said” the phone”. Personally, I could do without the phone entirely, which makes me unusual. Because the telephone is changing our lives more than any other piece of technology.
Point 1 The telephone creates the need to communicate, in the same way that more roads create more traffic. My daughter comes home from school at 4:00 pm and then spends an hour on the phone talking to the very people she has been at school with all day. If the phone did not exist, would she have anything to talk about?
Point 2 The mobile phone means that we are never alone. “The mobile saved my life,” says Crystal Johnstone. She had an accident in her Volvo on the A45 between Otley and Skipton. Trapped inside, she managed to make the call that brought the ambulance(救護(hù)車) to her rescue.
Point 3 The mobile removes our secret. It allows marketing manager of Haba Deutsch, Carl Nicolaisen, to ring his sales staff all round the world at and time of day to ask where they are , where they are going, and how their last meeting went.
Point 4 The telephone separates us. Antonella Bramante in Rome says, “We worked in separate offices but I could see him through the window. It was easy to get his number. We were so near——but we didn’t meet for the first two weeks!”
Point 5 The telephone allows us to reach out beyond our own lives. Today we can talk to several complete strangers simultaneously ( 同時(shí)地) on chat lines (at least my daughter does. I wouldn’t know what to talk about). We can talk across the world. We can even talk to astronauts (if you know any) while they’re space-walking. And, with the phone line hooked up to the computer, we can access(存取) the Internet, the biggest library on Earth.
小題1:How do you understand ‘Point 1 —The telephone creates the need to communicate,…’?
A.People don’t communicate without telephone.
B.People communicate because of the creating of the telephone.
C.People communicate more since telephone has been created.
D.People communicate more because of more traffic.
小題2:Which of the following best shows people’s attitude towards mobile phones?
A.Mobile phones help people deal with the emergency.
B.Mobile phones bring convenience as well little secret to people.
C.Mobile phones are so important and should be encouraged.
D.Mobile phones are part of people’s life.
小題3:Which points do you think support the idea that phones improve people’s life?
a. Point 1.  b. Point2.  c. Point3.  d. Point 4.  e. Point 5.
A.c, dB.a(chǎn), eC.a(chǎn), cD.b, e
小題4:It is possible to talk to several complete strangers simultaneously through      .
A.the TV screenB.a(chǎn) fax machine
C.the phone line hooked up to the computerD.a(chǎn) microphone
小題5:The best heading for the passage is      .
A.Phone Power B.Kinds of Phone
C.How to Use Phones D.Advantage of Phones

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科目:高中英語(yǔ) 來(lái)源:不詳 題型:閱讀理解

Sitting across from his teacher, Edgar Martinez repeated the word he couldn't quite pronounce: "situation".The teacher, LisaMojsin, hired to help Martinez reduce his accent, said the word slowly; "Sit-chew-a-shun." "I wish he had taught me this 20 years ago." said Martinez, 37, who comes from Mexico and lives in Los Angeles.In private tutoring classes throughout the nation, immigrants are focused on sounding more American.
Accent reduction classes have been around for years, but experts say."As our workforce becomes more and more global, these classes are becoming more and more popular." Private tutors said they answer calls almost daily from students, when just a few years ago the phones rang only occasionally.Author Amy Gillett said that sales of her book and CD set, "Speak English Like an American", have increased three times in the last few years.Judy Ravin, President of the Accent Reduction Institute, said she has hundreds of students who follow her program, "Lose Your Accent in 28 Days".
Though there is a general tolerance for diversity, experts said, reality has made some immigrants who sound different feel unwelcome.If someone speaks with an accent associated with an Asian language, they may work as engineers or computer scientists.If someone speaks with certain Spanish accents, people may think they are recent immigrants working in landscaping or the hospitality industry (招待性行業(yè)).A French accent gives images of romance.An Australian accent brings to mind adventure and fun.
Accent reduction students said they are aware of how they sound and whether their accents limit their job opportunities or spoil their social lives.Jennie Lo, aged 43, said her accent has been an embarrassment.Sometimes people couldn't even understand her when she said her name.While in college in Oklahoma, Lo said she didn't make many friends, tearing that no one could make out her words.Lo is now taking accent reduction classes and hopes to apply for a manager position at work."I just want to feel good about myself," she said."If I really work hard, if I practice every day, I can't be perfect.But I can be better."
小題1:In the whole passage, the first paragraph serves as a(n) _____.
A.introductionB.comment
C.explanationD.background
小題2:What does the author want to express in the second paragraph?
A.The effect that popular accent reduction classes have.
B.The fact that accent reduction classes become popular.
C.The steps how accent reduction classes become popular.
D.The reasons why accent reduction classes become popular.
小題3:If someone speaks with certain Asian accents, people may think _____.
A.they are romanticB.they are hospitality workers
C.they are computer scientistsD.they love adventure and fun
小題4:What is Jennie Lo's attitude towards her taking accent reduction classes?
A.Confident.B.Helpless.
C.Proud.D.Anxious.

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科目:高中英語(yǔ) 來(lái)源:不詳 題型:閱讀理解

It’s interesting that the arrival of snow has effect on people in different countries. For some countries it is an important happening to celebrate each year, while for others a catastrophe(災(zāi)害) or even a wonder.
  But there are countries between these two kinds that normally expect snow some time over the winter months, but never receive snow regularly or in the same quantities every year. Britain is one of them, for which the arrival of snow quite simply causes problems. Within hours of the first snowfalls, however light, roads are blocked, trains and buses have to stop in the middle of the way. Normal communication is affected as well: telephone calls become difficult and the post immediately takes more time than usual. And almost within hours, there are also certain shortages----bread, vegetables and other things-----not because all these things can no longer be produced or sent to shops, but mainly because people are frightened and go out and store up with food and so on…just for fear that something bad should happen.
  But why does snow have this effect? After all, the Swiss, the Austrians and the Canadians don‘t have such problems. It is simple because there is not enough planning and preparation. We need money to buy equipment to deal with snow and ice. To keep the roads clear, for example, requires snow-ploughs(掃雪機(jī)) and machines to spread salt. The reason why a country like Britain does not buy snow-ploughs is that they are used for a few days in any one year, and the money could be more useful in other things such as hospital, education, helping the old and so on..
 小題1:According to the writer, Britain is a country ________.
A.which has regular snowB.which is not well prepared for snow
C.for which snow is a catastropheD.for which snow is a wonder
  小題2:After a few hours’ snowing there are often some shortages of food because ______.
  A. shops have closed down B. people buy as much as they can
  B. farmers cannot produce any more D. people eat more vegetables in winter
  小題3:The words "two kinds" in the passage mean the countries ______.
A.which have weather as yearly happening to celebrate or as rare(少見(jiàn)) weather
B.which either have heavy snow or light snow
C.to which snow either causes problems or no problems
D.which either have snow-ploughs or no snow-ploughs

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科目:高中英語(yǔ) 來(lái)源:不詳 題型:閱讀理解

Researchers are placing robotic dogs(機(jī)器狗)in the homes of lonely old people to determine whether they can improve the quality of life for humans. Alan Beck, an expert in human-animal relationship, and Nancy Edwards, a professor of nursing, are leading the animal-assisted study concerning the influence of robotic dogs on old people’s depression, physical activity, and life satisfaction. “No one will argue that an older person is better off being more active, challenged, or stimulated(應(yīng)急的) ,”Edwards points out. “The problem is how we promote that, especially for those without friends or help. A robotic dog could be a solution.”
In the study, the robot, called AIBO, is placed for six weeks in the houses of some old people who live alone. Before placing AIBO in the home, researchers will collect baseline data for six weeks. These old people will keep a diary to note their feelings and activity before and after AIBO. Then, the researchers will review the data to determine if it has inspired any changes in the life of its owner.
“I talk to him all the time, and he responds to my voice,” says a seventy-year-old lady, “When I’m watching TV, he’ll stay in my arms until he wants down. He has a mind of his own.”
The AIBOs respond to certain orders. The researchers say they have some advantages over live dogs, especially for old people. Often the elderly are disabled(行動(dòng)不便的) and cannot care for an animal by walking it or playing with it. A robotic dog removes(免除) exercise and feeding concerns.
“At the beginning, it was believed that no one would relate to the robotic dog, because it was metal and not furry.” Beck says,“But it’s amazing how quickly we have given up that belief.”
“Hopefully, down the road, these robotic pets could become a more-valuable health helper. They will record their masters’ blood pressure, oxygen levels, or heart rhythms. AIBOs may even one day have games that can help stimulate older people’s minds.”
小題1: The purpose of Beck and Edwards’ study is to        .
A.understand human-animal relationship
B.find the causes of old people’s loneliness
C.make lonely old people’s life better
D.promote the animal-assisted research
小題2:In the research, the old people are asked to        .
A.note the activities of AIBOsB.record their feelings and activity
C.keep AIBOs at home for 12 weeksD.a(chǎn)nalyze the collected information
小題3:What is the advantage of AIBO over live dogs?
A.It is easier to keep at home.B.It responds to all the human orders.
C.It can help the disabled people.D.It can watch TV with its owner.

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