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发布时间：2006-07-01 09:21     点击：

When you are warm, the skin is loose and soft. It is so supplied with blood that heat is given off rapidly. If you get too warm, you begin to sweat, and more body heat is used in evaporating the moisture from you skin. You wear less clothing, too, in warm weather or warm room, so that warm can be given off freely. You feel less like exercising because your body is warm already, and the extra heat produced by exercise makes you uncomfortable.

You can see from this way you feel differently in different kinds of weather. In summer, when it is warm, you feel tired and lazy. You do not care to work or play, but enjoy lying and doing nothing. When you get out of doors in winter, the cold air makes you feel lively. You want to run and play.

1) Doctors take a patient s temperature when he is ill because ____________.

A. the body keeps the same temperature all the time

B. body temperature gives some information as to whether a person is ill or not

C. a person s temperature is sure to change when something is wrong with him

D. body temperature is a sign which show whether a person feels hot or cold

2) How does the body keep the same temperature all the time?

A. It is always producing heat from food.

B. It gives off the heat produced in it.

C. It balances the heat it gets and it loses.

D. It stops producing heat when necessary.

3) When one gets too warm, he begins to sweat in order to ____________.

A. evaporate the moisture

B. make the skin soft and loose

C. give off heat quickly

D. get the blood to move faster

4) From this passage we know that we feel differently in different kinds of weather because ____________.

A. our bodies react differently to keep the same temperature

B. warm weather makes one feel lazy and cold weather makes one become active

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