閱讀理解

閱讀下列短文,從每題所給的四個選項中選出最佳選項。

  Every animals is a living radiator (散熱器)--heat formed in its cells and given off through its skin. Warm blooded animals keep a normal temperature by continuously replacing lost surface heat: smaller animals, which have more skin for every ounce of body weight, must produce heat faster than bigger ones. Because smaller animals burn fuels faster, scientists say they live faster. The speed at which an animal lives is determined by measuring the rate at which it uses oxygen. A chicken, for example, uses one-half cubic centimeters of oxygen every hour for each gram it weighs. The tiny shrew-mouse used four cubic centimeters of oxygen every hour for each gram it weighs. Because it uses oxygen eight times as fast, it is said that the shrew-mouse is living eight times as fast as the chicken. The smallest of the warm-blooded animals, the humming-bird, lives a hundred times as fast as an elephant. There is a limit to how small a warm-blooded animal can be. A mammal or bird that weighs only two and a half grams would starve to death. It would burn up its food too rapidly and would not he able to eat fast enough to supply itself more fuel.

1.The passage says that every animal is a living radiator because it _____.

[  ]

A.produces heat in its body cells

B.burns fuel to produce heat

C.sends out heat through its skin

D.takes in oxygen for burning fuel

2.Small animals are said to live faster than big ones because they _____.

[  ]

A.have more skin for their weight

B.replace lost heat faster

C.burn fuel faster than big ones

D.keep a higher body temperature

3.The amount of oxygen an animal uses depends on _____.

[  ]

A.the heat the body produces

B.the food it eats

C.its size and shape

D.the length of time it lives

4.According to the passage, which of the following inferences is possibly right?

[  ]

A.There is no limit as to how large a warm-blooded animal can be.

B.The humming-bird lives faster than any other warm-blooded animals.

C.Small animals have less skin for their body weight than large ones.

D.The humming-bird is the smallest of the warm-blooded animals.

答案:C;C;A;B
解析:

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科目:高中英語 來源: 題型:閱讀理解

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科目:高中英語 來源: 題型:閱讀理解

第三部分  閱讀理解(共15小題;每小題2分,滿分30分)

請認真閱讀下列短文,從短文后各題所給的A、B、C、D四個選項中,選出最佳選項,并在答題卡上將該項涂黑。

                                   A

Scars of Love

Some years ago on a hot summer day in south Florida a little boy decided to go for a swim in the old swimming hole behind his house. In a hurry to dive into the cool water, he ran out of the back door, leaving behind shoes, socks and shirt as he went.

He flew into the water, not realizing that as he swam toward the middle of the lake, an alligator(短吻鱷) was getting close. The mother in the house was looking out of the window and saw the two as they got closer and closer together. In great fear, she ran toward the water, yelling to her son as loudly as she could. Hearing her voice, the little boy became alarmed and made a U-turn to swim to his mother. It was too late. Just as he reached her, the alligator reached him. From the dock, the mother grabbed her little boy by the arms just as the alligator snatched (抓住) his legs. That began an unbelievable tug-of-war (拔河比賽) between the two. The alligator was much stronger than the mother, but the mother was much too passionate to let go. A farmer happened to drive by, heard their screams, rushed from his truck, took aim and shot the alligator.

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