There was one thought that air pollution affected only the area immediately around large cities with factories and heavy traffic.At present, we realize that although these are the areas with the worst air pollution, the problem is really worldwide.On several occasions over the past decade,a heavy cloud of air pollution has covered the east of the United States and brought health warnings in distant areas away from any industrial cities.In fact,the very climate of the entire earth may be infected by air pollution.Some scientists consider that the increasing concentration of carbon dioxide in the air resulting from the burning of fossil fuels(coal and oil)is creating a “greenhouse effect”—— keeping heat reflected from the earth and raising the world’s average temperature.If this view is correct and the world's temperature is raised only a few degrees, much of the polar ice cap will melt and cities such as New York,Boston,Miami,and New Orleans will be in water.
Another view, less widely held, is that increasing particular matter in the atmosphere is blocking sunlight and lowering the earth’s temperature—a result that would be equally disastrous.A drop of just a few degrees could create something close to a new ice age,and would make agriculture difficult or impossible in many of our top farming areas.Today we do not know for sure that either of these conditions will happen.Perhaps,if we are lucky enough,the two tendencies will offset each other and the world's temperature will stay about the same as it is now.Driven by economic profits, people ignore the damage on our environment caused by the “advanced civilization”.Maybe the air pollution is the price the human beings have to pay for their development.But is it really worth-while?
小題1:People used to think that air pollution_________ .
A.caused widespread damage in the countryside
B.a(chǎn)ffected the entire eastern half of the United States
C.had a very bad effect on health
D.existed merely in urban and industrial areas
小題2:As to the greenhouse effect, the author_________.
A.shares the same view with the scientists.
B.is uncertain of its occurrence
C.rejects it as being ungrounded
D.thinks that it will destroy the world soon
小題3:The underlined word “offset” in the second paragraph could be replaced by_______.
A.counter-actB.break fromC.get alongD.communicate
小題4:This passage is primarily about________ .
A.the greenhouse effect
B.the burning of fossil fuels
C.the potential effect of air pollution
D.the possibility of a new ice age

小題1:D
小題2:B
小題3:A
小題4:C

試題分析:
小題1:根據(jù)There was one thought that air pollution affected only the area immediately around large cities with factories and heavy traffic,故選D。
小題2:根據(jù)Today we do not know for sure that either of these conditions will happen.以及全文內(nèi)容故選B。
小題3:根據(jù)and the world's temperature will stay about the same as it is now.可知offset意思是抵消,故選A
小題4:結(jié)合全文內(nèi)容,可知這篇短文主要講了空氣污染的潛在影響,故選C
點(diǎn)評(píng):本文說明了這篇短文主要講了空氣污染的潛在影響。并且提出了這樣一個(gè)問題:人類文明的進(jìn)步要以空氣被污染為代價(jià),這是否值得?答題前先閱讀問題,然后帶著問題,讀全文,找出答題所需要的依據(jù),完成閱讀。
練習(xí)冊(cè)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

The Iceberg Was Only Part ofIt
What doomed the Titanic is well known, at least in outline. On a moonless night of April 15, 1912, the ship hit an iceberg in the North Atlantic ,with 1,500 lives lost.
A century later many people presented new theories to explain the real reason for the disaster. Now two new studies argue that rare states of nature played major roles in the disaster.
The first says Earth’s nearness to the Moon and the Sun — a proximity not matched in more than 1,000 years — resulted in record tides that help explain why the Titanic met with so much ice, including the fatal iceberg.
Recently, a team of researchers found an apparent explanation in the heavens. They discovered that Earth had come unusually close to the Sun and Moon that winter, enhancing their gravitational pulls on the ocean and producing record tides. The rare orbits took place between December 1911 and February 1912 — about two months before the disaster came about. The researchers suggest that the high tides refloated masses of icebergs traditionally stuck along the coastlines of Labrador and Newfoundland and sent them adrift into the North Atlantic shipping lanes.
And a second, put forward by a Titanic historian from Britain, contends that the icy waters created ideal conditions for an unusual type of mirage(海市蜃樓) that hid icebergs from lookouts whose duty was to watch carefully for danger ahead and confused a nearby ship as to the liner’s identity, delaying rescue efforts for hours.
Most people know mirages as natural phenomena caused when hot air near the Earth’s surface bends light rays upward. In a desert, the effect prompts lost travelers to mistake patches of blue sky for pools of water. But another kind of mirage occurs when cold air bends light rays downward. In that case, observers can see objects and settings far over the horizon. The images often undergo quick distortions — not unlike the wavy reflections in a funhouse mirror.
Now, scholars of the Titanic are debating these new theories. Some have different opinions on it. Over all, though, many experts are applauding the fresh perspectives. 
小題1:The underlined word "It" in the title probably refers to _______.
A.the TitanicB.the cause of the disaster
C.the record tideD.a(chǎn)n unusual mirage
小題2:According to Theory First, what was the right chain of causes leading to the Titanic’s disaster?
① record tides’ forming and icebergs’ being refloated
② icebergs’ being drifted into the North Atlantic shipping lanes
③ the Earth’s strange closing to the Sun and the Moon
④ increasing of the gravitational force on the ocean
A.①→②→③→④B.②→③→④→①C.④→③→②→①D.③→④→①→②
小題3:According to Theory Second, the disaster happened to the Titanic mainly because______.
A.the freezing weather made the watcher not be able to watch clear
B.the mirage made the watcher not find icebergs and a nearby ship delay rescuing
C.the mirage on the sea attracted the watcher and made him forget his work
D.the high tides drove the icebergs float so fast that the watcher didn’t respond to them
小題4:What is the chief function of the sixth paragraph?
A.to explain to the readers the ways of the mirage forming
B.to infer the possibility of the mirage appearing
C.to summarize the various kinds of the mirage
D.to analyze the conditions of the mirage arising
小題5:This passage is organized generally in the pattern of________.
A.comparison and contrastB.conclusion and proof
C.time and eventsD.definition and classification(分類)

查看答案和解析>>

科目:高中英語 來源:不詳 題型:閱讀理解

Technology: Taking the good without the bad?
Very soon, unimaginably powerful technologies will remake our lives.This could have dangerous consequences, especially because we may not even understand the basic science underlyi ng them.There’s a growing gap between our technological capability and our basic scientific understanding.We can do very clever things with the technology of the future without necessarily understanding some of the science underneath, and that is very dangerous.
The technologies that are particularly dangerous over the next hundred years are nanotechnology (納米技術(shù)), artificial intelligence and biotechnology.The benefits that they will bring are beyond doubt.But they are going to be very, very dangerous.I’m working in the field of artificial intelligence.I have a model design for something that might be 50,000 million times smarter than the human brain.Target date is 2010.The only thing that's not possible in the film Terminator(終結(jié)者) is that the people win.If you're fighting against technology w hich is 50,000 million times smarter than you, you probably will not win.
Nanotechnology.We've all heard of the grey glue problem, that self-replicating nanotech devices might keep on copying until the world has become sticky glue.And certainly in biotechnology, we've really got a big problem because it's converging with nanotechnology and IT.Once you start mixing nanotech with organisms and you start feeding nanotech-enabled bacteria, we can really go an awful lot further than the Borg in Star Trek(星際迷航).And those superhuman organisms might not like us very much.
Eventually these technologies will become routine.That’s a threat to humanity.I don’t think it’s possible to slow it down.So what we need to do is accelerate the scientific research and try to get some extra tools.The problems facing us in the future are getting bigger and bigger.I think if we don’t get some proper science done, the future is hopeless indeed.
小題1:From the text, we know that the author’s greatest concern is         
A.our lack of technological understanding of the process involved
B.our lack of technological capability
C.creating technology without really understanding the basic science
D.Our refusal to face the consequences of the technology we create
小題2:It can be inferred from the text that the author         
A.thinks people overvalue the capabilities of technology
B.is not optimistic that artificial intelligence will always be used positively
C.thinks that we should take science fiction movies more seriously
D.believes artificial intelligence is the greatest threat we face technologically
小題3:Why does the author say it is not possible in the film Terminator that the humans win?
A.Because the power of the technology is exaggerated(夸大).
B.Because the strength of the machines is much greater.
C.Because machines with that much intelligence can easily defeat humans.
D.Because human beings are not courageous enough to win the battle.

查看答案和解析>>

科目:高中英語 來源:不詳 題型:閱讀理解

Every time you go shopping, the vegetables and fruit look so tempting that you wish you could buy all of them. Some people are lucky and can grow the fruit and vegetables in the gardens that they have. While getting fresh vegetables, they can also achieve great cost cutting.
Mushrooms are expensive and can also go bad very quickly. Mushrooms can also be grown easily in a dark environment. In fact it’s better than growing other vegetables since you really don’t need an outdoor space. A special type of soil that is good for growing mushrooms is easily available.
Actually mushrooms aren’t even vegetables; they are fungi(菌類) and for this reason, you don’t even require sunlight to grow them. Well how does one go about growing mushrooms? You could always Google “growing mushrooms” and you will find a number of mushroom growing kits(工具) available online that area effective and not very expensive either.
Mushrooms can be added to any dish that you cook. Simply use them in pizzas, salads and anything that you pretty much fancy. Grow mushrooms in your own house and use them whenever you want. Fresh mushrooms are tastier than the ones that are stored in your refrigerator.
If you have had a really good crop of mushrooms, then you can even store them. Ideally you should use the white variety of the mushrooms. Simply pick them, slice them and put them on a cookie sheet in a freezer. When they area frozen, just put them in a zip lock and you can use them when you want to. They give a really great taste to the dish that you are making. Thaw them before you use them.
You should try growing mushrooms, since it’s cost-effective. Furthermore, you can eat the fresh mushrooms any time that you want.
小題1: What is an advantage of growing vegetables according to the passage?
A.You can eat all kinds of vegetables
B.You are lucky to eat what you like
C.You can save lots of money
D.You can satisfy your desire
小題2: Mushrooms are different from other vegetables in that      .
A.they can be grown where there is no light
B.they can grow well in an outdoor space
C.it is easy for them to go bad in a few days
D.they can grow without soil
小題3: The third paragraph is mainly to tell us that          .
A.mushrooms are not vegetables
B.Internet helps us a lot
C.mushrooms are available online
D.it is easy to grow mushrooms
小題4:Which of the following is the right order of storing mushrooms?
a. put them on a cookie sheet in the refrigerator
b. place frozen mushrooms in a zip lock
c. cut them into slices
d. choose the white mushrooms
A.a(chǎn)-b-c-dB.d-c-a-bC.a(chǎn)-d-c-bD.d-a-c-b
小題5: What would be the best title for this passage?
A.It is easy and fun to grow mushrooms
B.We should eat more fruit and vegetables
C.Mushrooms online are very expensive
D.Mushrooms—tasty and healthy vegetables

查看答案和解析>>

科目:高中英語 來源:不詳 題型:完形填空

We often talk about ourselves as if we have permanent genetic defects (缺陷) that can never be changed.“I’m impatient.” “I’m always behind.” “I always put things   21 !” You’ve surely heard them.Maybe you’ve used them to describe   22 
These comments may come from stories about us that have been   23  for years—often from   24  childhood.These stories may have no   25  in fact.But they can set low expectations for us.As a child, my mother said to me, “Marshall, you have no mechanical (操作機(jī)械的) skills, and you will never have any mechanical skills for the rest of your life.” How did these expectations   26  my development? I was never   27  to work on cars or be around   28 .When I was 18, I took the US Army’s Mechanical Aptitude Test.My scores were in the bottom for the entire nation!
Six years later,   29 , I was at California University, working on my doctor’s degree.One of my professors, Dr.Bob Tannbaum, asked me to write down things I did well and things I couldn’t do.On the positive side, I   30   down, “research, writing, analysis, and speaking.” On the   31  side, I wrote, “I have no mechanical skills.”
Bob asked me how I knew I had no mechanical skills.I explained my life   32  and told him about my   33  performance on the Army test.Bob then asked, “  34  is it that you can solve   35  mathematical problems, but you can’t solve simple mechanical problems?”
Suddenly I realized that I didn’t   36  from some sort of genetic defect.I was just living out expectations that I had chosen to   37 .At that point, it wasn’t just my family and friends who had been   38  my belief that I was mechanically hopeless.And it wasn’t just the Army test, either.I was the one who kept telling myself, “You can’t do this!” I realized that as long as I kept saying that, it was going to remain true.  39  , if we don’t treat ourselves as if we have incurable genetic defects, we can do well in almost   40  we choose.
小題1:
A.a(chǎn)way B.offC.up D.down
小題2:
A.themB.myselfC.yourselfD.others
小題3:
A.saidB.spokenC.spreadD.repeated
小題4:
A.a(chǎn)s long asB.a(chǎn)s far back asC.a(chǎn)s well asD.a(chǎn)s much as
小題5:
A.basisB.plotC.causeD.meaning
小題6:
A.leadB.improveC.a(chǎn)ffectD.change
小題7:
A.encouragedB.demandedC.hopedD.a(chǎn)greed
小題8:
A.meansB.toolsC.facilitiesD.hammers
小題9:
A.thereforeB.somehowC.insteadD.however
小題10:
A.settledB.turnedC.tookD.got
小題11:
A.passiveB.a(chǎn)ctiveC.negativeD.subjective
小題12:
A.experiencesB.tripsC.roadsD.paths
小題13:
A.unexpected B.poorC.excellentD.a(chǎn)verage
小題14:
A.WhenB.WhatC.How D.Why
小題15:
A.complexB.a(chǎn)dvancedC.common D.primary
小題16:
A.a(chǎn)riseB.separateC.sufferD.come
小題17:
A.believeB.suspectC.a(chǎn)doptD.receive
小題18:
A.weakeningB.strengtheningC.a(chǎn)bandoningD.a(chǎn)ccepting
小題19:
A.As a resultB.At the same timeC.In additionD.On the contrary
小題20:
A.a(chǎn)nything B.somethingC.nothingD.a(chǎn)ll

查看答案和解析>>

科目:高中英語 來源:不詳 題型:閱讀理解

The clock struck eleven at night. The whole house was quiet. Everyone was in bed except me. Under the strong light, I looked sadly before a huge pile of troublesome things they call “books”.
I was going to have my examination the next day. “When can I go to bed?” I asked myself. I didn’t answer, in fact I dared not.
The clock struck 12. “Oh, dear!” I cried, “ten more books to read before I can go to bed!” We pupils are the most wretched(可憐的) creatures in the world. Dad does not agree with me on this. He did not have to work so hard when he was a boy.
The clock struck one. I was quite hopeless now. I forgot all I had learnt. I was too tired to go on. I did the only thing I could. I prayed, “Oh, God, Please help me pass the exam tomorrow. I do promise to work hard afterwards, Amen.” My eyes were heavy, so heavy that I could hardly open them. A few minutes later, with my head on the desk, I fell asleep.
小題1:When the author was going over his lessons, all the others in the house were_____ .
A.a(chǎn)sleepB.working C.outsideD.watching TV
小題2:Reviewing his lessons didn’t help him at all because ____________.
A.he thought it was useless doing this at night
B.his parents were not able to help him
C.his eyes were so heavy that he couldn’t keep them open
D.he hadn’t studied hard before the examination
小題3: What do you suppose happened to the author later?
A.He went to a church to pray again
B.He passed the exam by luck
C.He failed in the exam
D.He was punished by his teacher

查看答案和解析>>

科目:高中英語 來源:不詳 題型:閱讀理解

In modern society, receiving systematic college education seems a necessary way for success as a graduate from first-class university may always get more opportunities than others. However, if it is gold, it will shine one day. In this article, we will get to know three most successful people in U.S. who never finished their college education. Following experiences of these successful dropouts may give you some inspiration.
1. Bill Gates
Harvard’s campus paper “Harvard Crimson” called Bill Gates “Harvard’s most successful dropout,” while the rest of the world preferred to name him “the world’s richest man” for more than a decade. Now, even not on the top, he is still among the list of the world’s wealthiest people.Gates entered Harvard in the fall of 1973. Two years later, he dropped out to found Microsoft with friend Paul Allen. And in 2007, he finally received an honorary doctorate from Harvard.
2. Steve Jobs
The iPad, even Buzz Lightyear probably wouldn’t have existed if Steve Jobs stayed in school. Because his family couldn’t afford his college education, Jobs had to drop out of Reed College just after entering for 6 months. Then he found Apple, NeXT Computer and Pixar, which had made great influences on development of modern technique and culture. However, this wizard thought that his brief college education was not worthless.
3. Frank Lloyd Wright
As the America’s most celebrated architect, Wright spent more time on designing colleges rather than attending classes in them. Once spent one year in the University of Wisconsin-Madison, then he left for Chicago and started to learn from Louis Sullivan, the “father of modernism." Wright’ s splendid resume included more than 500 works, most famous of which are Fallingwater and New York City's Solomon R. Guggenheim Museum.
小題1: What does“dropouts”in Paragraph One mean?
A.Hardworking students.B.Very successful students.
C.Students failing to finish their school education.D.Students from poor families.
小題2:Which of the following is right according to Paragraph One?
A.People graduating from famous universities are more likely to get jobs.
B.Many successful people had the experience of giving up their school education.
C.If one has a lot of gold, he will become very rich one day.
D.We should stop our college education to follow in those successful people’s steps.
小題3:According to the writer, Bill Gates _________.
A.is richer than any other man in the world
B.is well-known in Harvard University
C.finally finished his study at Harvard and got a doctorate degree
D.is the only founder of Microsoft
小題4:Which of the following statements can’t be learned from the last two paragraphs?
A.The reason for Jobs’ dropping his college education is that his parents couldn’t pay for it.
B.Jobs thought his six-month college education gave him no help.
C.Wright’s teacher was a very famous artist.
D.Wright is the designer of New York City’s Solomon R. Guggenheim Museum.
小題5: What does the author want to tell us in this passage?
A.Successful people often have unordinary life experience.
B.College education is not so important to one’s success.
C.People from poor families are more likely to give up their college education.
D.Even without college education, one can still achieve success with one’s hard work.

查看答案和解析>>

科目:高中英語 來源:不詳 題型:閱讀理解

There is a wonderful story about a young girl who had no family and no one to love her.
One day,feeling very sad and lonely, she was walking through a grassland when she noticed a small butterfly caught in a thorn (荊棘) bush. The young girl carefully released the Butterfly. Instead of flying away, the little butterfly changed into a beautiful fairy. The young girl rubbed(擦) her eyes in disbelief.“For your wonderful kindness,” the good fairy said to the girl,“I will give you any wish you would like.” The little girl thought for a moment and then replied,“I want to be happy.”The fairy  whispered(耳語) in her ear. Then the fairy disappeared.
As the little girl grew up, there was no one in the land as happy as she. Everyone asked her secret of happiness .She would only smile and answer,“The secret of my happiness is that I listened to a good fairy when I was a little girl.”
When she was very old and on her deathbed ,the neighbors gathered around her,they said to her “Tell us, please,” they begged,“Tell us what the good fairy said.” The lovely old woman simply smiled and said,“She told me that everyone, no matter how secure they seemed, no matter how old or young,how rich or poor, had need of me.”
小題1:______ the girl felt sad and lonely.
A.There was nobody to love her so B.There were many friends
C.There was nothing to doD.Seeing the butterfly was caught
小題2: Noticing the butterfly was caught by the thorn,the orphan girl ______.
A.failed to help it release from the thorn
B.felt sorrow,but she didn’t go up to help it
C.fell down on it too
D.helped the butterfly escaped from the thorn
小題3: The butterfly ______ after it was saved by the little girl.
A.flied away
B.changed into a fairy
C.still died
D.was more beautiful than before
小題4:The only thing that the little girl wanted was________.
A.to be richB.to have her own parents
C.to have a lot of friendsD.happiness

查看答案和解析>>

科目:高中英語 來源:不詳 題型:閱讀理解

Something in chocolate could be used to stop coughs and lead to more effective medicines, say UK researchers.
Their study found that theobromine(可可堿), found in cocoa, was nearly a third more effective in stopping coughs than codeine, which was considered the best cough medicine at present.
The Imperial College London researchers who published their results online said the discovery could lead to more effective cough treatment. “While coughing is not necessarily harmful it can have a major effect on the quality of life, and this discovery could be a huge step forward in treating this problem,” said Professor Peter Barnes.
Ten healthy volunteers were given theobromine, codeine or placebo, a pill that contains no medicine, during the experiment. Neither the volunteers nor the researchers knew who received which pill. The researchers then measured levels of capsaicin, which is used in research to cause coughing and as a sign of how well the medicines are stopping coughs.
The team found that, when the volunteers were given theobromine, the capsaicin needed to produce a cough was around a third higher than in the placebo group. When they were given codeine they needed only slightly higher levers of capsaicin to cause a cough compared with the placebo.
The researchers said that theobromine worked by keeping down a nerve activity(神經(jīng)活動(dòng)), which cause coughing. They also found that unlike some standard cough treatments, theobromine caused no side effects such as sleepiness.
小題1:According to Professor Barnes, theobromine ______.
A.cannot be as effective as codeine
B.can be harmful to people’s health
C.cannot be separated from chocolate
D.can be a more effective cure for coughs
小題2:What was used in the experiment to cause coughing?
A.Theobromine. B.Codeine.C.Capsaicin.D.Placebo.
小題3:We learn from the text that volunteers in the experiment _____.
A.were patients with bad coughs
B.were divided into the three groups
C.received standard treatments
D.suffered little side effects
小題4:Which of the following would be the best title for the text?
A.Codeine: A New Medicine
B.Chocolate May Cure Coughs
C.Cough Treatment: A Hard Case
D.Theobromine Can Cause Coughs

查看答案和解析>>

同步練習(xí)冊(cè)答案