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.

Tony and I are good friends. We tried to walk across the United States of America. We're not exactly sure 　1.　 we were doing it. Part of it was to test ourselves; to see if we could face the challenges. When I was 　2.　 teenager I often daydreamed that I was going to walk across the United States 　3.　I graduated from high school. 　 4.　，I didn't do that. Before I knew it I was in my thirties, married, 　 5.　 (have) a job, yet still had this idea in my mind with each　6.　(pass) year. I figured I was too old and my opportunity had passed. Then, a few years ago，I met Tony,　 7.　 was in his thirties and quit his job as a civil engineer in New York City to walk across the United States. He wasn't doing it for a cause　8.　 as part of an organization. He was doing it　9.　（simple) because he loved to walk and discover. The idea was back and I no longer had an excuse. We planned on averaging 20 miles a day and taking some days off to rest, so we expected the walk to. take about 6 months realizing it could take　10.　（long). We were in no hurry: The total distance would have been about 3,100 miles.

完形填空：阅读下面短文，掌握其大意，然后从A、B、C、D四个选项中，选出可以填入空白处的最佳选项。(共20小题；每小题1.5分，满分30分)

“Imagine you are walking along the road. Suddenly you fall over and all the passers-by burst into laughter. You feel very　 36　 and think the world is laughing at you . But in fact, five minutes later, they have　 37　  it ever happened.” The other day when I came across these words in an article, I didn’t agree with the　 38　 .

The author thinks the best thing to do in this kind of　 39  is to pretend nothing has happened, and so avoid　 40　 trouble.

I admit that we should keep　 41　 because “Your tears will only remind others of what happened, while your　 42　 can let them forget it.” But this is far from satisfactory. We should do　43　 to make things better.

I used to be a(n)  44　 girl and not very good at maths. Our new maths teacher asked me a question and I still remember how I hung my head in  45 when I couldn’t answer it.

“If you don’t know the answer, just tell me.” the teacher said, “If you don’t how can I know 　 46　 you know the answer or not?” All of my classmates burst into laughter. My face turned red but the teacher　 47　 me to go to the blackboard and　 48　 what I knew. If I had　 49　 the words in the article, I would have given up. But I tried my best. And to everyone’s  50　, I succeeded! The teacher smiled and said, “Well done! I　 51　 you could do it!”

Since then, I have become active in maths as　 52　 as in other subjects. I used to think doing maths exercises was a waste of time. But now, I know　 53　 I do can make things better. Everyone is the　 54　 of his own fate.

If we make mistakes, we should take on an active　55　 . Laugh, and the world laughs with you; weep(哭泣), and you weep alone.

36．A. nervous      B. excited       C. afraid         D. embarrassed

37．A. realized      B. recognized     C. forgotten      D. remembered

38．A. speaker      B. reader         C. author        D. announcer

39．A. environment  B. surrounding    C. condition      D. situation

40．A. ordinary     B. extra          C. common       D. usual

41．A. confident    B. smart          C. calm          D. strong

42．A. smile        B. worry         C. courage       D. satisfaction

43．A anything      B. something      C. nothing       D. everything

44．A. shy         B. energetic       C. happy         D. clever

45．A. joy         B. pride          C. shame         D. surprise

46．A. what        B. that           C. when          D. whether

47．A. forced       B. invited        C. asked          D. pushed

48．A. bring up     B. put down      C. think about      D. show off

49．A. obeyed      B. doubted       C. refused         D. understood

50．A. expectation  B. disappointment  C. surprise         D. delight

51．A. hoped       B. knew         C. doubted        D. regretted

52．A. long        B. far            C. soon          D. well

53．A. whoever     B. whenever      C. wherever       D. whatever

54．A. architect     B. owner         C. host           D. controller

55．A. position      B. attitude        C. value        D. response

“Imagine you are walking along the road. Suddenly you fall over and all the passers-by burst into laughter. You feel very　 1　 and think the world is laughing at you . But in fact, five minutes later, they have　 2　  it ever happened.” The other day when I came across these words in an article, I didn’t agree with the　 3　 .
The author thinks the best thing to do in this kind of　 4 is to pretend nothing has happened, and so avoid　 5　 trouble.
I admit that we should keep　 6　 because “Your tears will only remind others of what happened, while your　 7　 can let them forget it.” But this is far from satisfactory. We should do　8　 to make things better.
I used to be a(n)  9　 girl and not very good at maths. Our new maths teacher asked me a question and I still remember how I hung my head in  10  when I couldn’t answer it.
“If you don’t know the answer, just tell me.” the teacher said, “If you don’t how can I know 　 11　 you know the answer or not?” All of my classmates burst into laughter. My face turned red but the teacher　 12　 me to go to the blackboard and　 13　 what I knew. If I had　 14　 the words in the article, I would have given up. But I tried my best. And to everyone’s  15　, I succeeded! The teacher smiled and said, “Well done! I　 16　 you could do it!”
Since then, I have become active in maths as　 17　 as in other subjects. I used to think doing maths exercises was a waste of time. But now, I know　 18　 I do can make things better. Everyone is the　 19　 of his own fate.
If we make mistakes, we should take on an active　20　 . Laugh, and the world laughs with you; weep(哭泣), and you weep alone.