谁有新概念三crasy的课文？

我有 Children often have far more sense than their elders.This simple truth was demonstrated rather dramatically during a civil defence exercise in a samll town in Canada.

Most of the inhabitants were asked to take part in the exercise during which they had to pretend that their city had been bombed.Air-raid warnings were sounded and thousands of people went into special air-raid shelters.Doctors and nurses remained above ground while Police patrolled the streets in case anyone tried to leave the shelters too soon. The police did not have much to do because the citizens took the exercise seriously

They stayed underground for twenty minutes and waited for the siren to sound again.On leaving the air-raid shelters ,they saw that doctors and nurses were busy,A great many people had volunteered to act as casualties,Theatrical make-up and artificial blood had been used to mke the injuries look realistic , A lot of people were lying 'dead' in the stree