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With his attention________on the shops along the roadside,he knocked an old man down while riding to school.
A concentrating B.concentrated C.to concentrate D.concentrates
答案 B
解析 考查词组,故选B项。
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In today’s world English is the most wildly used language. It is our duty to learn English in the new situation of the reform and opening (改革开放) to the outside world. How can we master the English language? I’d like to give you some good advice.
First, get interested in it. I enjoy listening to foreign friends talking when I was a child. At the same time I watched the English programme Follow Me on TV. From then on, I kept on learning English. The more I learned, the more progress I made.
Second, practice makes perfect. Many people study English very hard, but they are very shy to speak it in public, for they are afraid of making mistakes. Remember you have to make a mistake before you can correct it. A native English speaker makes mistakes sometimes, too.
Third, the beginners should be encouraged to pay attention to idioms. The English language has many idioms. For example, you should say “He is as strong as a cow.”
68. If we want to learn English, we must first .
A. show interest in it B. enjoy listening to it
C. watch English programmes on TV D. practice speaking it
69. When learning English, we will .
A. remember the mistakes and correct them B. try not to make any mistakes
C. avoid mistakes before making them D. not be afraid of making mistakes
70. The underlined word “idioms” in the last paragraph means “ .”
A. 单词 B. 习语 C. 句子 D. 短语
71. According to the writer, what is the most important in learning English?
A. Not being shy to speak in public
B. Paying attention to idioms.
C. Practising listening and speaking as much as possible.
D. Watching English programmes
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B
What is language for? Some people seem to think it's for practicing grammar rules and learning lists of words—the longer the lists,the better. That's wrong. Language is for the exchange(交流)of ideas and information. It's meaningless knowing all about a language if you can't use it freely. Many students I have met know hundreds of grammar rules, but they can't speak correctly or fluently. They are afraid of making mistakes. One shouldn't be afraid of making mistakes when speaking a foreign language. Native speakers make mistakes and break rules, too. Bernard saw once wrote, "Foreigners often speak English too correctly." But the mistakes that native speakers make are different from those that Chinese students make. They're English mistakes in the English language. And if enough native speakers break a rule, it is no longer a rule. What used to be wrong becomes right. People not only make history, they make language. But a people can only make its own language. It can't make another people's language. So Chinese students of English should pay attention to grammar, but they shouldn't overdo(做过头)it. They should put communication first.
1.Language is used to ________.
A. express oneself B. practice grammar rules
B. talk with foreigners only D. learn lists of words
2.Generally, when an American or an Englishman speaks English, he ________.
A. never makes mistakes B. often makes mistakes
C. can't avoid making mistakes D. always makes mistakes
3."Foreigners often speak English too correctly. "This sentence means that ________.
A. foreigners speak correct English
B. foreigners speak incorrect English
C. foreigners speak English according to the grammar rules
D. foreigners never make mistakes when they speak English
4.If too many native speakers break a rule, ________.
A. what they use will become right B. they are against the law
C. they should say sorry to others D. they will become heroes
5.When we speak a foreign language, we should ________.
A. speak in Chinese way B. speak by the rules
C. speak to native speakers D. not be afraid of making mistakes
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B
Fever has usually been regarded as a threat to health.However,no one has actually proved that fever is dangerous.This fact attracted the attention of Matthew J.Kluger.Imagining that fever might not be as harmful as it had been supposed,Kluger set up a series of experiments with lizards(蜥蜴).
What Kluger and his team did his team did in their first experiment was simple.They put some lizards in a sand-box,one end of which was heated to 44℃,while the other was at a room temperature.It was found that the lizards moved form one part of the box to the other in order to keep a constant temperature of about 38℃.Having shown that normal lizards regulate(调节) their own temperature,Kuger,in a second experiment,then set out to show that lizards,like most other animals,develop fever when infected.This was done by making lizards infected with bacteria (细菌) that were known to cause disease.As the team expected,the infected lizards remained longer in the heated part of the box,until they had raised their body temperatures to two or three degrees above normal.In other words,the sick lizards gave themselves fever.
In a third experiment,the team observed the effect of temperature on the survival of the lizards.One group of infected lizards was given a fever - suppressing(退烧) drug.The other group was given no drug and ran a fever,that is to say,they kept a highter temperature for four or five days before seeking a cooler environment.The results were impressive.Of those which raised their body temperature,all but one remained alive.Of those given the fever - suppressing drug,more than half died.Similar results have since been produced in other animals.For example,infeced fish swim to warmer water,and will die if not allowed to do so.
An important conclusion can be drawn from these experiments.As Kluger points out,lizards have been on earth for hundreds of millions of years.It is reasonable to suppose that a response that is so old has been kept by nature for some purpose.It would appear, therefore, that fever does not make disease worse.Rather it its part of the mechanism(机能) by which infection is controlled.
60.In his experiments,Kluger was hoping to prove that fever ________.
A.is not harmful to lizards
B.is not necessarily bad
C.is necessary for both humans and animals
D.has the same effect on humans and animals
61.The lizards put in the sand - box in the first experiment _____.
A.had a fever B.were not sick C.recovered from disease D.died of heat
62.In the third experiment,the lizards given a fever - suppressing drug died because _____.
A.they had no more fever that they needed
B.they were normal ones and had no fever
C.the drug had no iffect on sick lizards
D.the drug made their body temperature too low
63.How would you understand the underlined words"a response" in the last paragraph?
A.Gause of disease. B.Recovery from disease.
C.Relationship between living D.Natural defense in the body against disease.
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B
A new study has found no evidence that sunscreen, commonly used to reduce the risk of skin cancer, actually increases the risk.
Research from the University of Iowa based their findings on a review of 18 earlier studies that looked at the association between sunscreen use and melanoma (黑素瘤). They said that they found flaws in studies that had reported associations between sunscreen use and higher risk of melanoma.
Most health experts believe that by protecting the skin from the harmful effects of the sun, sunscreen helps prevent skin cancer, which is increasing in incidence (发生率) faster than any other cancer in the United States.
But questions have been raised about sunscreen and whether it may have the opposite effect by allowing people to remain exposed to the sun longer without burning.
The researchers said that among the problems with some earlier studies is that they often failed to take into account that those people most at risk for skin cancer---are more likely to use sunscreen. As a result, it may appear that sunscreen users get cancer more often.
The studies, which generally relied on volunteers to recall their sunscreen use, were also unable to prove how well the products had been applied, said the new study.
60.The underlined word “flaws” in the 2nd paragraph most probably means _________.
A.evidences B.facts C.faults D.failures
61.People with fair skin and freckles ________.
A.seldom use sunscreen B.are more in danger of skin cancer
C.can be free from the harm of the sun D.often expose themselves to the sun
62.We can learn from the passage that _________.
A.sunscreen users get skin cancer more often
B.the volunteers have proved the effect of the sunscreen
C.the new study has based on the experiences of volunteers
D.the number of skin cancer patients is increasing in America
63.Which of the following is the best title of the passage?
A.Sunscreen to Prevent Skin Cancer B.Sunscreen to Increase Skin Cancer
C.Skin Cancer Caused by Sunscreen D.Skin Cancer Caused by Freckles