题目列表(包括答案和解析)
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.
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.
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.
Chinese people are now spending more time surfing the net than watching TV, according to results of a survey by the Chinese Academy of Social Sciences (CASS) published Thursday.
The survey, of citizens of five Chinese cities, found that 79 percent of interviewees use the internet for information, and 55.1 percent to read news on the internet. About 63 percent of the interviewees use e-mail. The average times spent surfing the net and watching TV were 2.73 hours and 1.29hours, respectively.
Only 10.4 percent reported use the internet primarily to send and receive email; 65.9 percent read online news; 62.2 quite often play games on-line. More and more people have taken an interest in the entertainment opportunities online. Up to 56.5 percent of interviewees quite often download music, and 53.5 percent get entertainment messages from the internet.
Yet the survey found that television is still the dominant mass medium. Seventy-nine percent of interviewees choose to watch TV to get information, and another 75 percent take newspapers as important as TV.
Five major web sites in the Chinese language, namely Sina, Sohu, Netease, Baidu and Yahoo are still ranked top ones by web users, and those that voted for Sina as the best among them were 30.9 percent.
Authorized statistics showed that web users in China have already exceeded 100 million, second to that of the United States.
36. Which of the following is not true?
A. Chinese people are now spending more time surfing the net than watching TV.
B. There are more Chinese people using the internet for information compared with those reading news on the internet.
C. There are more people using e-mail compared with those searching information on the internet.
D. There are more people using e-mail compared with those reading news on the internet.
37. The survey shows that .
A. Only 10.4% reported use the internet to send and receive email.
B. Less than half of the people use the internet for enter fain-ment.
C. All of the people reported like to play games on-line.
D. Most of the people reported read online news.
38. Which will you choose if you want to chat with your friends on the internet?
A. TV B. Sina C. telephone D. QQ
4. The underlined word “exceeded” means .
A. increased to B. increased by C. risen D. decreased
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