完形填空

阅读下面短文，掌握其大意，然后从以下各题所给的四个选项中(A、B、C、D)中，选出最佳选项。

　　Science is based upon observation. However, observation 1 is not science. Scientists 2 state a problem, which then guides them in their observations. But without observation people generally are not 3 of a problem. This then raises a question 4 comes first, the observation or the problems?

　　Curiosity awakens a need 5 observation. Observation will usually 6 specific questions in the mind of a scientist. To 7 his curiosity he begins to make observations. 8 , he formulates a specific statement that can be tested. This statement is called a hypothesis (假设). It is the starting point for an experiment.

　　 9 experimenting, the scientist tries to show or prove that the hypothesis is true or false. He 10 use good 11 to create an experiment that 12 the problem. The experiment must produce valid information or data. The date 13 during the experiment are observations.

　　Observations can be made directly and indirectly. For direct observation, instruments are 14 used. Some instruments used by modern scientists are quite simple; others are very 15 .

　　To complete his experiment, the scientist must state his observations in numerical 16 . This means that he has to make measurements. With the results from these he can make more 17 comparisons or descriptions to 18 his hypothesis. The results of a scientific experiment 19 on a valid hypothesis can often 20 a better understanding of the world and the universe.

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Today, many people are starving to death. Recently, a man who wanted to understand the conditions of such people conducted an experiment. He only ate one meal a day for a month but continued to work as he normally did.
During the first five days he was hungry at his  1  mealtime, but after he had drunk a glass of water, his hunger went away. In the morning, when he ate his one meal, he ate quickly and had a   2   amount. During the next few days,   3 he was not hungry during the day, he quickly   4  every food stall (a table on which food is put to be sold), and the smell of food caught his    5   . During the third and the fourth weeks, he had hunger pains and    6    physical strength. He    7     his one meal and ate it slowly, enjoying every bite.    8    it, he knew he would have hardly enough energy to work.
　   This   9   changed his attitude about some things. Having a cup of tea was not just a pastime. It also  10   him strength. He more frequently noticed overweight people and people who threw   11  leftover food. He realized the importance of   12   for the very hungry person. He could no longer easily    13    by a hungry beggar on the street. But most   14   , he could now sympathize(同情) in a   15    way with the hungry people of the world.
1．A．after　　     B．formal　　　　   C．regular　　　   D．frequent
2．A．large　　     B．small　　　　    C．ordinary　　    D．common
3．A．if　　　      B．when　　　　　  C．as if　　　　   D．although
4．A．recognized　B．noticed　　      C. glanced　　　    D．digested
5．A．eyes　　      B．imagination　     C．attention　 　 D．interest
6．A．needed　      B．lacked           C．required　　    D．wanted
7．A．looked forward to　　 　　B．devoted himself to
　 C．looked down upon　　 　  D．took pride in
8．A．With　　      B．Without　　　   C．Rather than 　 D．Except for
9．A．action　      B．movement　　　C．experiment　    D．performance
10．A．gained　      B．gave　　　　　 C．took　　　　   D．left
11．A．in　　　      B．up　　　　　　 C．away　　　　  D．about
12．A．food　　      B．meals　　　　   C．money　　　  D．work
13．A．come　　      B．pass　　　　　C．stand　　　 　D．stop
14．A．fortunately　 B．seriously　　   C．necessary　　  D．important
15．A．great　　     B．big　　　　　   C．small　　　 　D．similar

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.

There are many colors in nature. But do you know if a color has weight? I think you’ll say “no”. But I am afraid you are wrong. If you don’t believe, you may do a small experiment.

　　First, put two objects with the same weight into two boxes. Then cover the box. Third, wrap one box with a red piece of paper, the other with a white piece of paper. OK. Now hold the boxes with your hand one by one. It is certain that you will think the red one is a little heavier.

　　Why do you think so? A scientist found that different colors have different weight in a man’s mind. So he did man tests and at last he got the result. That is to say, every color has its own weight in our mind and their order is the same. The heaviest color is red, then blue, green, orange, yellow and white.

　　The scientist told us that colors also have smell. Can you smell the color? Of course not. Then why did the scientist say so? That is because every color stands for a kind of light with a certain wavelength. It reaches our brain through sense organs (感觉器官).

According to this discovery, scientists say that people accept the colors they like, and refuse the colors they hate. So your body and mind will be healthy by using the colors you like. Or you’ll be nervous or even get ill. For example, if you stay in a room with red windows, wallpapers and furniture for two hours, you’ll feel you have been there for four hours. But if the room is blue, you’ll feel you have been there for only an hour. Another example, if a person walks out of a red room and into a blue room, his temperature will fall. That means our body temperature will change with different colors.

1.The purpose of the second paragraph is to tell us ___________.

       A. a red box is heavier than a white one

       B. a color has weight in one’s mind

       C. white paper is lighter than red paper

       D. you can know the weight of a color by holding it

2. Why did the scientist say colors have smell?

       A. Because people can sense the light from colors.

       B. Because we can smell colors with our nose.

       C. Because every color has its own sweet smell.

       D. Because every color can give off light of the same length.

3. If a person walks from a blue room to a red room, his body temperature will ___________.

A. rise                B. fall                 C. stay the same               D. change now and then

4.It can be implied from the text that ___________.

A. colors have orders in weight

B. colors can change the weight of an object

C. people would stay longer in a room with red windows

D. colors can affect our mood and health

5.This passage is probably a ___________.

       A. book review                   B. fiction novel                   C. fairy tale                D. science report