精英家教网 > 高中英语 > 题目详情
"The world's oceans are slowly getting more acidic.”say scientists.The researchers from California report that the change is taking place in response to higher levels of carbon dioxide in the atmosphere.
The lowering of the waters’pH value is not great at the moment but could cause a serious threat to current ocean life if it continues, they warn. Ken Caldeira and Michael Wickett, from the Lawrence Livermore National Laboratory, report their concerns in the journal Nature.
Increasing use of oil fuels means more carbon dioxide is going into the air, and most of it will eventually be absorbed by seawater. Once in the water, it reacts to form carbonic acid. Scientists believe that the oceans have already become slightly more acidic over the last century.
These researchers have tried to predict what will happen in the future by combining what we know about the history of the oceans with computer models of climate change."This level of acidity will get much more extreme in the future if we continue releasing COZ into the atmosphere," said Dr Caldeira. "And we predict the amount of future acidity will exceed(超过)anything we have seen over the last several hundred million years, let alone perhaps after rare disastrous events such as asteroid(小1j-%+.'_) impacts.”
However, it is not absolutely clear what that means for ocean life.Most organisms live near the surface, where the greatest pH change would be expected to occur, but deep-ocean life forms may be more sensitive to pH changes.Coral reefs and other organisms whose shells contain calcium carbonate(小行星) may be particularly affected if the water's acidity levels keep going up, the team predict. They could find it much more difficult to build these structures in water with a lower pH.
In recent years some people have suggested storing carbon dioxide from power stations in the deep ocean as a way of dealing with global warming.But Dr Caldeira said that such a strategy should now be re-considered. "Previously, most experts had looked at ocean absorption of carbon dioxide as a good thing一because in releasing CO2 into the atmosphere we warm the planet, and when CO2, is absorbed by the ocean, it reduces the amount of greenhouse warming.”
小题1:The ocean is becoming more acidic due to_.
A,the lower water pH value           B.the warming atmosphere
C .the higher level of COZ in the air     D.the increasing use of oil fuels
小题2:According to Dr Caldeira,_.
A.ocean absorption of carbon dioxide is a good thing
B.more oil fuels will be used in the near future
C.scientists may predict climate changes with computer models
D.the future situation of the amount of acidity is extremely serious
小题3:If the water's acidity level keeps rising,_.
A.ocean life whose structures contain calcium carbonate may be affected
B.the waters’pH value will become higher and higher
C.organisms living near the surface are more sensitive to pH changes
D.some disastrous events will occur more often than before
小题4:Most experts once believed storing carbon dioxide in the ocean would reduce_.
A.the COZ absorbed by the ocean
B.the amount of greenhouse warming
C.the acidity of the ocean
D.the gradul release Of CO2
小题5:The purpose of this passage is to_.
A.show people the findings of a research team
B.inform people of how acid the ocean is now
C.introduce Dr Caldeira and his team's research
D.warn people of the higher level of COZ
小题1:C小题2:A小题3:D小题4:C小题5:B
练习册系列答案
相关习题

科目:高中英语 来源:不详 题型:阅读理解

  In the more and more competitive scrvice industry , it is no longer enough to promise customrr satisfaction. Today , customer “delighi” is what companies are trying to achieve in or order to keep and increase market share.
It is accepted in the marketing industry , and confirmed by a number of researches, that customers receiving good service will promote business by telling up to 12 other people : those treated badly will tell their tales of woe to up to 20 people, 80 percent of people who feel their complaints are handled fairly will stay loyal
New llenges for customer care have come when peoplecan obtain  goods and services through  telephone call centers and the Intemet. For example , many companies now have to invest(投资)a lot of money in information technology and staff training in order to cope with the “phone rage”—caused by delays in answering calls ,being cut off in mid-conversation or left waiting for long periods.
“Many people do not like talking to machines ,”says Dr . Storey Senior Lecturer in Marketng at City University Business School. “Banks, for example, encourage staff at call centers to use customer data to establish instant and good relationship with them .The aim is to make the customet feel they know you and that you can trest— the sort of comfortable feelings people have during face-to-face chats with their local branch manager.”
Recommended ways of creating customer delight include: under-promising and over-delivering  (saying that a repair will be camed out within five hours ,but getting it done within two );replacing a faulty product immediately : throwing in a gift voucher(购物礼卷)as an unexpected “thank you” to regntlar customers ;and always returning calls ,even when they are complaints.
Aiming for customer delight is all very well , but if services do not reach the high level promised , disappointment or worse will be the result . This can be eased by offering an aplogy and an explanation of why the service did not meet usual standards with empathy (for example,“I know how you must feel”) , and possible solutions (replacement , compensation or whatever faimess suggests best meets the case).
Airlines face some of the tourhest challenges over customer care . Fierce competition has convinced them that delighting passengers is an important marketing tool, while there is great potential for customer anger over delays caused by weather ,unclaimed luggage and technieal problems .
For British Airways staff , a winning telephone style is considercd vital in handling the large volume of calls about bookings and flight times . They are trained to answer quickly ,with their name , job title and a “we are here to help” attitude. The company has investod heavily in information technology to make sure that infomation is available instantly on scren.
British Airways also says its customer care policies are applied within the company and staff are
taught to regard each other as customers requiring the highest standards of service.
Customer care is obviously here to stay and it would be a foolish company that used slogans such as "we do as we please”. On the other  hand , the more customers are promised, the greater the risk of  disappointment.
小题1:
We can learn from Paragraph 2 that       .
A. complaining customers are hard to satisfy
B. unsatisfied customers receive better service
C. Satisfied customers catch more attention
D. well-treated customers promote business
小题2:
The writer mentions “phone rage”(Paragraph 3) to show that       .
A.customers often use phones to express their anger
B.people still prefer to buy goods online
C.customer care becomes more attention
D.customers rely on their phones to obtain services
小题3:
What does the writer recommend to create delight?
A.Calling customers regularlyB.Giving a “thank you” note.
C.Delivering a quicker serviceD.Promising more gifts.
小题4:
If a manager should show his empathy (Paragraph6), what would he  probably say?
A.“I know how upset you must be.”B.“I appreciate your understanding.”
C.“I’m sorry for the delay.”D.“I know it’s our fault.”
小题5:
Customer delight is important for airlines because      .
A.their telephone style remains anchanged
B.they are more likely to meet with complaints
C.the services cost them a lot of money
D.the policies can be applied to their staff
小题6:
Which of the following is conveyed in this article?
A.Face-to-face service creatcs comfortable feelings among customers.
B.Companies that promise more will naturally attract more customers.
C.A company should promise less but do more in a competitive market.
D.Customer delight is more important for airlines than for banks.

查看答案和解析>>

科目:高中英语 来源:不详 题型:完形填空

What is intelligence (智力) anyway? When I was in the army I   21  an intelligence test that all soldiers took, and, against   22  of 100, scored 160.                             
I had an auto-repair man once, who, on these intelligence tests, could not   23  have scored more than 80.   24 , when anything went wrong with my car I hurried to him—and he always   25  it.
Well, then suppose my auto-repair man   26  questions for some intelligence test. By every one of them I'd prove myself a   27 . In a world where I have to work with my   28 , I'd do poorly.
Consider my auto-repair man   29 . He had a habit of telling   30 . One time he said, “Doc, a deaf-and-dumb(聋哑) man   31   some nails. Having entered a store, he put two fingers together on the counter and made   32  movements with the other hand. The clerk brought him a hammer. He   33  his head and pointed to the two fingers he was hammering. The clerk   34  him some nails. He picked out the right size and left. Well, Doc, the   35 man who came in was blind. He wanted scissors (剪刀).   36  do you suppose he asked for them?” I lifted my right hand and made scissoring movements with my first two fingers. He burst out laughing and said, “Why, you fool, he used his   37  and asked for them. I've been   38  that on all my customers today, but I knew   39  I'd catch you.” “Why is that?” I asked. “Because you are so goddamned educated, Doc. I knew you couldn't be very   40  .”
And I have an uneasy feeling he had something there.
小题1:
A.failedB.wroteC.receivedD.chose
小题2:.
A.an averageB.a totalC.an examD.a number
小题3:
A.alwaysB. possiblyC.certainlyD.frequently
小题4:.
A.ThenB.ThusC.ThereforeD.Yet
小题5:
A.fixedB.checkedC.droveD.changed
小题6:.
A.answeredB.practicedC.designedD.tried
小题7:
A.teacherB.doctorC.winnerD.fool
小题8:
A.brainsB.effortC.handsD.attention
小题9:
A.againB.as usualC.tooD.as well
小题10:
A.liesB.jokesC.newsD.tales
小题11:
A.boughtB.testedC.foundD.needed
小题12:
A.cuttingB.hammeringC.wavingD.circling
小题13:
A.noddedB.raisedC.shookD.turned
小题14:
A.broughtB.packedC.sentD.sold
小题15:
A.cleverB.otherC.rightD.next
小题16:
A.WhatB.HowC.WhoD.Which
小题17:
A.imaginationB.handC.voiceD.information
小题18:
A.tryingB.provingC.practicingD.examining
小题19:
A.for sureB.at onceC.in factD.right now
小题20:
A.clearB.sillyC.slowD.smart

查看答案和解析>>

科目:高中英语 来源:不详 题型:阅读理解

Thanksgiving Day is a special holiday in the United States and Canada.Families and friends gather to eat and give thanks for their blessing.
Thanksgiving Day is really a harvest festival.This is why it is celebrated in late fall,after the crops are in. But one of the first thanksgivings in America had nothing to do with a good harvest.On December 4,1619,the Pilgrims from England landed near what is now Charles City,Virginia.They knelt down and thanked God for their safe journey across the Atlantic.
The first New England Thanksgiving did celebrate a rich harvest.The Pilgrims landed at what is now Plymouth,Massachusetts,in 1620.They had a difficult time and the first winter was cruel.Many of the Pilgrims died. But the next year,they had a good harvest.So Governor Bradford declared a three­day feast (盛宴).The Pilgrims invited Indian friends to join them for their special feast. Everyone brought food.
In time,other colonies (殖民地) began to celebrate a day of thanksgiving. But it took years before there was a national Thanksgiving Day. During the Civil War,Sarah Josepha Hale persuaded Abraham Lincoln to do something about it. He proclaimed (宣布) the last Thursday of November 1863 as a day of thanksgiving. Today, Americans celebrate this happy harvest festival on the fourth Thursday in November.Canadians celebrate Thanksgiving Day in much the same way as their American neighbours.But the Canadian Thanks­giving Day falls on the second Monday in October.
小题1:Thanksgiving Day is celebrated         .
A.in springB.in summer
C.in autumnD.in winter
小题2:The first to celebrate thanksgiving were         .
A.some people from England
B.the American Indians
C.Sarah Josepha Hale
D.Governor Bradford
小题3:We can infer from the passage that New England must be         .
A.in the U.S.A.
B.in Great Britain
C.in Canada
D.on some island off the Atlantic
小题4:Which of the following is NOT true?
A.Thanksgiving Day used to be a holiday to celebrate a good harvest.
B.Abraham Lincoln was not the first to decide on thanksgiving celebrations.
C.Thanksgiving Day is celebrated to express the American and Indian people’s thanks to God.
D.There’s little difference between the American way and the Canadian way to celebrate Thanksgiving Day.
小题5:The passage mainly tells us         .
A.how Thanksgiving Day is celebrated in the U.S.A.
B.how Thanksgiving Day came into being and the different ways it is celebrated
C.that Thanksgiving Day is in fact a harvest holiday
D.how the way to celebrate Thanksgiving Day changed with the time and places

查看答案和解析>>

科目:高中英语 来源:不详 题型:阅读理解

It’s really true what people say about English politeness: it’s everywhere. When squeezing past someone in a narrow aisle, people say “sorry”. When getting off a bus, English passengers say “thank you” rather than the driver. In Germany, people would never dream of doing these things. After all, squeezing past others is sometimes unavoidable, and the bus driver is only doing his job. I used to think the same way, without questioning it, until I started travelling to the British Isles and came to appreciate some more polite ways of interacting (交往) with people.
People thank each other everywhere in England, all the time. When people buy something in a shop, customer and retail assistant in most cases thank each other twice or more. In Germany, it would be exceptional to hear more than one thank you in such a conversation. British students thank their lecturers when leaving the room. English employers thank their employees for doing their jobs, as opposite to Germans, who would normally think that paying their workers money is already enough.
Another thing I observed during my stay was that English people rarely criticize others. Even when I was working and mistakes were pointed out to me, my employers emphasized (强调) several times but none of their explanations were intended as criticism. It has been my impression that by avoiding criticism, English people are making an effort to make others feel comfortable. This also is showed in other ways. British men still open doors for women, and British men are more likely to treat women to a meal than German men. However, I do need to point out here that this applies to English men a bit more than it would to Scottish men! Yes, the latter (后者)  are a bit tightfisted.
小题1:
. What is the author’s attitude towards English politeness?
A.He thinks it is artificial.B.He gives no personal opinion.
C.He appreciates it.D.He thinks it goes too far.
小题2:
What can we learn about customers and retail assistants in Germany?
A.A customer never says thank you to a retail assistant.
B.It’s always a retail assistant who says thank you.
C.They may say thank you only once.
D.they always say thank you to each other.
小题3:
We can learn from the last paragraph that Scottish men __________.
A.are more likely to be involved in a fighting
B.are more polite than English men
C.treat women in a polite way
D.are not so willing to spend money for women
小题4:
The author of this text is most probably ___________.
A.an EnglishmanB.a German
C.a Scottish manD.a Welshman
小题5:
The author develops the text through the method of ____________.
A.making comparisonsB.telling stories
C.giving commentsD.giving reasons

查看答案和解析>>

科目:高中英语 来源:不详 题型:阅读理解

This year Canada’s navy is one hundred years old. To mark the occasion, military ships from six different countries around the Pacific Ocean came to Canada for a four-day celebration. There were parades, parties and demonstrations of navy search and rescue aircraft and a show put on by the Snowbirds.
The Snowbirds, Canada’s aerobatic team, fly Tudor jet aircraft that are not particularly fast or particularly new but with amazing and sometimes hair-raising precision. They put a formation of nine aircraft into a space that would normally hold only one and they change the information in flight, roll it, loop it, break it and reform it in a dizzying ballet in the sky. The Snowbirds are one of the best aerobatic flying teams in the world and they are a readily recognized symbol of Canada just as the Great Wall is a recognized symbol of China. For a Canadian, watching the Snowbirds fly can bring tears. They make us very proud.
The Snowbirds have been flying since 1971. All of the pilots are serving members of the Canadian Air Force. They are all very young, all are highly-skilled and each is attached to the Snowbirds for two or three years. Each winter they practice in the cold, clear skies and each summer they put on more than fifty air-shows across the country and sometimes abroad. What they do is highly specialized. They often fly less than two meters from each other at speeds of about seven hundred and fifty kilometers an hour.
Flying is, by its nature, inherently risky and what the Snowbirds do increases that risk. While the pilots are all highly trained professionals, eight Snowbird pilots have been killed over the years. I have been fortunate enough to watch the Snowbirds fly probably fifteen or twenty times and if I know they are going to be flying I will go to see them again and again. This is not because I want to see someone do something dangerous, it is because I want to see something done so well—it is almost unbelievably precise and beautiful. I want to watch nine aircraft in an incredibly tight formation, each one painted in the red and white of my country’s flag, soaring through the cloudless blue sky. I want to feel that pride and that tear just behind my eyelids that comes from watching something uniquely and wonderfully Canadian.
小题1:.
Which of the following is TRUE about the Snowbirds?
A.The aircraft they fly are particularly fast and new.
B.They are the best aerobatic flying team in the world.
C.They are regarded as a symbol of Canada.
D.Every year they put on more than fifty air-shows across the country.
小题2:.
. The underlined word “inherently” in the last paragraph refers to         .
A.naturallyB.trulyC.entirelyD.nearly
小题3:.
Why does the author like to watch the Snowbirds fly?
A.Because he wants to see someone do something dangerous.
B.Because the flying is unbelievably precise and beautiful.
C.Because his country’s flag is painted on each one.
D.Because watching them fly can make people cry.
小题4:.
Which of the following might be the best title for the passage?
A.Air-shows of the Snowbirds
B.A Four-day Celebration of Canada
C.The Training of Highly-skilled Pilots
D.A National Symbol -- the Snowbirds

查看答案和解析>>

科目:高中英语 来源:不详 题型:阅读理解

Since the early 1990s, the Internet has greatly changed the way people communicate. But some teachers think the changes are not all for the better.
Eleanor Johnson, an English professor at Columbia University in New York, says, “Ithink text messaging has made students believe that it is far more acceptable than it actually is to just make spelling and grammatical mistakes.” She says her students over the past several years have increasingly used less formal English in their writing. She says words and phrases like “you know” now appearing research papers. And she now has to talk about another problem in class---incorrect word use.
Professor Johnson doubts a strong connection between the rise of communication online and an increase in writing mistakes. But she admits there may not be much scientific proof, at least not yet.
David Crystal, a British language expert, says the actively changing nature of the Internet makes it difficult to stay unchanged in studying its effects. But he believes its effect on language is small. He says, “The main effect of the Internet on language has been to increase the expressive richness of language, providing the language with a new set of communicative content that didn’t exist in the past.” Erin Jansen, founder of an online dictionary of Internet and text messaging terms, says his new technology has not changed existing language but has greatly added to the vocabulary. “Basically it is a freedom of expression,” she says, “If it is helping them write more or communicate more, that is great. That is what teachers and educators want---to get students communicating.”
But Erin Jansen and David Crystal agree with Eleanor Jonson on at least one thing. Teachers need to make sure students understand the uses and rules of language.
小题1: According to the text, which of the following statements is TRUE?
A.David Crystal thinks the Internet makes the language expression richer.
B.David Crystal believes the Internet’s effects on language use are clear
C.Eleanor Johnson thinks writing mistakes has much to do with the Internet
D.Eleanor Johnson thinks all the Internet effects on language use are good
小题2:. Eleanor Johnson is mentioned to _______.
A.share her idea of the great effects of using the Internet
B.tell people a way to correct students’ writing mistakes
C.serve as an example of teachers’ blaming the Internet
D.warn people against the dangers of using the Internet
小题3: What do the three experts have in common as to the Internet effect?
A.The possibilities of avoiding the use of less formal words
B.The causes of the Internet’s great effects on language
C.The necessity of helping students reduce writing mistakes
D.The importance of students’ knowing how to use language
小题4:. What could be the best title for the text?
A.Students’ Learning and the Internet: Good or Bad?
B.Students’ Writing and the Internet: Good or Bad?
C.Students’ Papers and the Internet: Good or Bad?
D.Students’ Mistakes and the Internet: Good or Bad?

查看答案和解析>>

科目:高中英语 来源:不详 题型:阅读理解

Being a mother is apparently not like it was in the good old days.
  Today’s parents yearn for the golden age that their own mothers enjoyed in the 1970s and 1980s, researchers found. Mothers have less time to themselves and feel under greater pressure to handle work and family life than the previous generation. As a result, 88 per cent said they felt guilty about the lack of time they spent with their children.
The survey of 1,000 mothers also found that more than a third said they had less time to themselves than their mothers did – just three hours a week or 26 minutes a day. And 64 per cent said this was because they felt they ‘had’ to go out to work, while nearly a third (29 per cent) said they were under constant pressure to be the ‘perfect mother’, the report found.
Other findings showed social networking and parenting websites, as well as technology such as Skype, were important in providing help and support among female communities. Kate Fox, a member of the Social Issues Research Centre, which conducted the survey for Procter & Gamble, said: ‘With increasing pressure on mothers to work a “double shift” — to be the perfect mother as well as a wage-earner — support networks are more important than ever.
It comes as a separate report examining childcare in the leading industrialised nations found that working mothers in Britain spend just 81 minutes a day caring for their children as a ‘primary activity’. Mothers who stay at home, on the other hand, manage twice as much time – more than two and a half hours – looking after their offspring, according to the Organisation for Economic Co-operation and Development.
  Critics say the pressure on women to work long hours, and leave their offspring in the hands of nurseries or childminders, is putting the well-being of their children at risk.
  The study also reveals that, despite the fact that more and more modern mothers go out to work, the burden of childcare still falls on them - even if their husband is not in work. A father who is not in work tends to spend just 63 minutes a day looking after his child - 18 minutes less than a mother who goes out to work. Working fathers spare less than three quarters of an hour with their children.
小题1:. What does the passage mainly talk about?
A.The good old days of mothers in the 1970s and 1980s.
B.The great sufferings of today’s children.
C.The statistics of working mothers and full-time mothers.
D.The big problems that today’s working mothers face.
小题2:. What does the underlined phrase “yearn for” probably means ___________.
A.hateB.missC.abandonD.control
小题3: Which of the following problems is NOT mentioned in the passage?
A.Today’s mothers have less time left for their children and themselves.
B.The working mothers can hardly strike the balance between work and family.
C.Most of the mothers can not control their husbands nowadays.
D.Modern fathers do not spend enough time with their children.
小题4: From para. 4, we can infer that ___________.
A.working mothers can seek help on line
B.Skype is a very famous expert in studying social issues
C.working mothers’ double shift is to be a wife and a mother
D.Kate Fox has opened a website offering help to working mothers
小题5:. What critics say means that _____________.
A.it is wise for working mothers to put their kids in nurseries or childminders
B.too much time in nurseries or childminders is bad for kids’ mental and physical health
C.nurseries or childminders are dangerous places for children
D.children do not like nurseries or childminders at all

查看答案和解析>>

科目:高中英语 来源:不详 题型:阅读理解

People say that a mother’s love knows no boundaries (边界). This is true when it comes to my mother. She has given up many things so that my sisters and I could live a better life.
My mother comes from a large family and her parents died when she was quite young. She dropped out of school when she was fifteen because no one could afford to pay her studies. At the age of 19, she married my father and when they had my sisters and I, they moved to the United States so that we could have a better life. My parents did not know English but somehow they communicated with other people. My mother stayed at home and raised us while my father was working. There were so many dangerous incidents that happened where we lived that my mother finally decided that we all moved to Texas when I was seven.
My mother has worked so hard to give us everything. She always tells us that all she wants is for us to be happy.
As the saying goes, “You don’t appreciate (意识到) something until it’s gone.” Well, I finally had a chance to experience it. My mother went to Mexico this winter because she needed to have an operation. It was the first time in my life that my mother was not there to hold and comfort me. Those two weeks when she was away made me realize how much I love her. All she has done for me is incredible (难以置信的). When I suffer she suffers with me. I have to show her how much I care about her. She means the world to me.
小题1:Which is the RIGHT order of the following events?
a. My mother married my father.
b. My mother went to Mexico to have an operation.
c. We all moved to Texas.
d. My mother dropped out of school.
e. They moved to the United States.
f. My mother’s parents died when she was young.
A.a, b, f, c, d, eB.d, e, a, c, f, bC.f, d, a, b, e, cD.f, d, a, e, c, b
小题2:What does the underlined word “it” refer to in the fourth paragraph?
A.My mother’s experience.B.My mother’s care for me.
C.The meaning of the saying.D.My mother’s love.
小题3:The writer didn’t realize that he loves his mother very much until ______.
A.they moved to TexasB.his mother told them all she wanted was for them to be happy
C.his mother left home for an operationD.his mother died
小题4:According to the passage, we can infer that the writer writes the passage in a(n) ______ mood.
A.affectionate (挚爱的)B.humorousC.serious D.bitter

查看答案和解析>>

同步练习册答案