新概念第二册第21课.ppt

Lesson 21Mad or not?;New words;mad adj 发疯的;reason ;2) 理性，正常心智 eg. Only man has reason. 只有人类才有理性。 lose one’s reason 丧失理智 beyond all reasons 毫无道理 bring a person to reason 使（某人）明白道理，使不做糊涂事 reasonable? adj. 合情合理的，良好的，尚可的 at a reasonable price 以合理的价格 cause 导致某事发生的起因 the cause of the fire 大火的起因 eg. Smoking is one of the causes of lung cancer. 吸烟是肺癌的起因之一。;sum n. 量;sum n. 量;determined adj 坚定的，下决心的;课文讲解; 1、Mad or not? = mad or not mad? or not 在疑问词的后面，表示“是还不是”，选择概念 2、Aeroplanes are slowly driving me mad. 1). aeroplane = airplane 飞机 2). drive sb mad 把某人逼疯 （难点P94) e.g. You are driving me mad. drive (drove , driven) eg. He drives his car very badly. 他开车技术非常糟糕。 eg. The farmer drove the cattle in the field. 那位农夫把牛赶进田里。 eg. Our army drove the enemy back. 我们的军队把敌人赶回去了。 eg. During the war, many people were driven out of their homes. 　　战争期间，许多人被赶出家园。 ;3、I live near an airport and passing planes can be heard night and day. night and day 日日夜夜，夜以继日 passing planes 过往飞机 （passing是现在分词，作定语，起形容词作用，修饰planes，“经过的(路过)，过往的”） He forgot the man with passing time. 随着时间的消逝，他忘掉了那个人。 sleeping baby 正在睡觉的小孩 waiting car　 正在等待的车 ;4、The airport was built years ago, but for some reason it could not be used then. 1)years前面不加确定的数词时，一般表示“许多年”years ago = many years ago，weeks等的用法与它相似 I have not seen him for weeks. 2)for some reason　由于某个理由 some+可数名词单数：某一 some book some+可数名词复数：一些 some books some+不可数名词： 一些 some water I’ll tell you some day. We’ll talk about it some other time. 我们改日再谈这件事。 ;5.Last year,however,it came into use. Over a hundred people must have been driven away from their homes by the noise. 1) come into use:投入使用(永无被动，物作主语） come into:进入得到、获得财富 eg. The airport came into use last year. 这个机场去年投入使用。 go out of use 停止使用 2) over = more than 3) away from 离开 4) Home ,family与 house 的区别（P94难点） home:家,强调有感情;house仅仅指房子;family:家人