新概念英语第二册21课件.ppt

Mad or not?;☆mad adj. 发疯 be mad/crazy about:为……而疯狂 be mad at /with sb eg:Dont be mad at him。 别怪他（不关他的事）。 go+adj:变得 go mad/crazy Dont fight with him, he is a mad man. 别跟他打架, 他是疯子。;1.疯的 The woman lost her son and got mad. 那个女人丢了孩子后疯了。 2.愚蠢的，不明智的（用于口语） You must be mad to drive so fast! 你开这么快，简直是疯了！ 3.非常生气的（口语）~at/with He is mad with the dog for biting his new shoe. 够咬了他的新鞋，他气得火冒三丈。 4.非常喜欢 So many people are mad on football. 很多人痴迷足球。;sum 名词 n. [C] 1.总数,总和,总计 the sum of... She paid the sum of $200 for dresses. 她买衣服总共花了二百元钱。 2.金额;一笔 the sum of... He earned a large sum of money. 他赚了一大笔钱。 3. summary 概要，摘要 ;☆sum n.量 大量： a great many/a great number of+可数名词复数 a sum of:一笔 a large sum of:大量的，喜欢跟钱连用 a large sum of money a large amount of:许多 plenty of（注意：前面没有a）足够的 ;reason [’ri:z?n] n.原因 for this reason: 由于这个原因 the reason for 原因是 the reason why 为什么的原因 For what reason? 是为了什麽原因？ ;1.道理，原因 They departed for no reason. 他们无缘无故就分手了。 2.推理，讲出道理，对某人讲道理 He reasoned him out of smoking. 他说服他戒了烟。 3.reasonable adj.合理的，有道理的 he price is reasonable. 价钱很合理。 ;☆determined adj. 坚定的，下决心的 I am determined to stay here.我决定留在这儿。 be determined to do sth. 决心做某事 decide to do sth. v.determine 决定 determine sb. to do sth. 使某人决定做某事 ;变成被动语态;;decide和determine 之间的区别： 都有“决定”的意思。 decide 指“经过询问、研讨和考虑之后, 在几种可能的选择之中作出决定”,decide 最为普通： 如: She decided to leave here on Sunday instead of Monday. 她决定星期日而不是星期一离开这里。 ;determine指“决心作某一件事而不动摇”, 常涉及范围比较狭小的问题： 如: 　　 We have determined to get the work done ahead of schedule. 　　 我们已经决定要提前完成这项工作。 ;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.;l am one of the few people left.;Sometimes I think this house will be knocked down by a passing plane。;习惯用语;我们再来学一个习惯用语: knock yo