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必修3 Unit 2 Healthy eating 能力演练 一、语法填空 阅读下面短文，根据上下文及中文提示填入适当的词语，或使用括号中所给词正确形式填空。 The human body has developed its millions of nerves to be highly aware of what goes on both inside and outside of it.This helps us adjust to the outside world.Without our nerves and our brain, 1 is a system of nerves,we couldn,t know what is happening. 2 we pay for our sensitivity(敏感度).We can feel pain 3 the slightest thing is wrong with any part of our body.The history of torture(折磨) 4 (base)on the human body being open to pain. But there is a way to handle pain.Look at the Indian fakir(苦行僧)who sits on a bed of nails.Fakirs 5 put a needle right through an arm,and feel no pain.This ability that some humans have developed to handle pain should give us ideas about 6 the mind can deal with pain. The big thing in withstanding pain is our attitude toward it.If the dentist says,“This will hurt a little,” it helps us to accept the pain.By staying 7 (relax),and by treating the pain as | 
