摘要：Aeroplanes are slowly driving me mad. I live near an airport and passing planes can be heard night and day. The airport was built years ago, but for some reason it could not be used then. Last year, however, it came into use. Over a hundred people must have been driven away from their homes by the noise. I am one of the few people left. Sometimes I think this house will be knocked down by a passing plane. I have been offered a large sum of money to go away, but I am determined to stay here. Everybody says I must be mad and they are probably right.。注意句中的must表肯定猜测，是对过去发生的事情的猜测，所以其用法结构为：。

【廖老师亲自授课】

新概念1课文朗读打卡（第一期）

更多廖老师亲自教授的线下课程，请参看本文末尾的介绍。

每课一句：新概念第2册第20课

今天我们接着来看第21课的“每课一句”。

一、课文原文

Lesson 21 Mad or not?

Aeroplanes are slowly driving me mad. I live near an airport and passing planes can be heard night and day. The airport was built years ago, but for some reason it could not be used then. Last year, however, it came into use. Over a hundred people must have been driven away from their homes by the noise. I am one of the few people left. Sometimes I think this house will be knocked down by a passing plane. I have been offered a large sum of money to go away, but I am determined to stay here. Everybody says I must be mad and they are probably right.

——选自《新概念英语》第二册，外语教学与研究出版社，1997年10月第1版

二、每课一句

Over a hundred people must have been driven away from their homes by the noise.

注意句中的must表肯定猜测，是对过去发生的事情的猜测，所以其用法结构为：

must have done（主动） must have been done（被动）

更多例句如：

Jack must have come back, for there's light in his house.

must也可以表示对现在发生的事情的猜测，比如本文中的句子：

Everybody says I must be mad and they are probably right.

这句话中的must就是对“我”目前状态的猜测，其用法结构为：

must be（状态） must be doing（动作）

更多例句如：

The case must be Jack's, for there'a a label with his name on it. Jack must be looking for his case now.

三、更多拓展

can't表否定猜测

英语里must只能用来表肯定猜测，否定猜测一般用can't，其用法结构与must相似。如：

Jack can't be at home now, for I saw him in the street just now. Jack can't be playing basketball now, for it's raining heavily. Jack can't have found his case, for he's still looking for it now.

3、周日上午10:35-12:35，新概念第二册（可插班），目前上到第2课（浦东新区崂山路640号）

【注意】

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