新概念英语1语法|高中新概念英语语法填空：Exercise

阅读下面短文，按照句子结构的语法性和上下文连贯的要求，在空格处填人一个适当的词或使用括号中词语的正确形式填空，并将答案填写在答题卡标号为31～40的相应位置上。

　　Exercise is good for you, but most people really know very little about __31___ to exercise properly. So when you try, you 32_ __ run into trouble.

　　Many people believe that when specific muscles are exercised, the fat in the neighbouring area is “burned up”. Yet the truth is 33 ___ exercise burns fat from all over the body.

　　Studies show muscles which are not exercised lose their strength very quickly. To regain it 34__ (need) 48-72 hours and exercise every other day will keep a normal level of physical strength.

　　To lose weight you should always “work up a good sweat” when 35__ _ (exercise). Sweating only reduces body temperature to prevent heating. This is nothing 36_ __ water loss.

　　Walking is the best and easy-to-do exercise. 37_ helps the circulation of blood throughout the body, and has a direct effect 38_ _ your overall feeling of health. Experience says that 20 minutes’ exercise 39_ __ day is minimum amount. But if your breathing doesn’t return to normal state within minutes 40___ you finish exercising, you’ve done too much.
　　31. how 32. may/can/will 33. that 34. needs 35. exercising 36. but 37. It 38. on 39. a/per 40. After

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