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概括大意與完成句子

More Exercise

Physical fitness is the result of many factors - good medical and dental care, proper nutrition, adequate rest and relaxation, and sensible personal habits. But these are never enough. An essential factor is regular physical activity - exercise for a body that needs it to function well.

All of us know that ordinary movements - things like running, jumping, and bending - are made by muscles. Muscles also do many other things. They suck air into your lungs, push food along your digestive tract, and tighten your blood vessels to raise blood pressure when you need more pressure for an emergency. Your heart is a muscular pump.

When your muscles are not used, or are not used enough, they do not develop and grow properly. They soon become flabby and weak, shrink in size, and lose the ability to do the jobs they were meant to do.

Recent studies showed that the average high school student spends fifteen to thirty hours a week watching television and only two hours a week in organized play or exercise. That is one reason why one-third of the 200, 000 pupils tested for the President's Council on Physical Fitness failed a simple test of strength, stamina, and flexibility. Some of the boys and girls could not raise themselves to a sitting position without using their hands!

Cars and buses, elevators and escalators, TV and push-button machines all tend to reduce strenuous physical activity. But our bodies still need exercise. Without it they soon become weak, ineffective, and unattractive.

1、Paragraph 1 _________.

A、Factors of physical fitness

B、Our body needs exercise

C、The result of lacking exercise

D、Muscles need exercise

E、The function of muscles

F、The way of keeping fit

【正確答案】 A

【答案解析】 抓住“factors”一詞即可。

2、Paragraph 2 _________.

A、Factors of physical fitness

B、Our body needs exercise

C、The result of lacking exercise

D、Muscles need exercise

E、The function of muscles

F、The way of keeping fit

【正確答案】 E

【答案解析】 這段襯托了肌肉的作用和功能。

3、Paragraph 4 _________.

A、Factors of physical fitness

B、Our body needs exercise

C、The result of lacking exercise

D、Muscles need exercise

E、The function of muscles

F、The way of keeping fit

【正確答案】 C

【答案解析】 這段通過一項(xiàng)調(diào)查說明了缺乏鍛煉的結(jié)果。

4、Paragraph 5 _________.

A、Factors of physical fitness

B、Our body needs exercise

C、The result of lacking exercise

D、Muscles need exercise

E、The function of muscles

F、The way of keeping fit

【正確答案】 B

【答案解析】 抓住“our bodies still need exercise”即可。

5、Some people have difficulties in standing up due to _________.

A、be overweight

B、lacking adequate exercise

C、hurt badly

D、not used

E、do exercise

F、tightening blood vessels

【正確答案】 B

【答案解析】 第4段最后提到有些人不用手支撐就站不起來是因?yàn)槿狈ψ銐虻腻憻挕?/p>

6、Your muscles become weak when they are _________.

A、be overweight

B、lacking adequate exercise

C、hurt badly

D、not used

E、do exercise

F、tightening blood vessels

【正確答案】 D

【答案解析】 從第3段中可以找到本題答案。

7、To keep fit, you have to _________.

A、be overweight

B、lacking adequate exercise

C、hurt badly

D、not used

E、do exercise

F、tightening blood vessels

【正確答案】 E

【答案解析】 整個(gè)文章都在討論應(yīng)該鍛煉來保持健康。

8、Muscles can help raise blood pressure by _________.

A、be overweight

B、lacking adequate exercise

C、hurt badly

D、not used

E、do exercise

F、tightening blood vessels

【正確答案】 F

【答案解析】 從第2段中可以找到本題答案。

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