新概念英语第二册课件-(Lesson-21---Mad-or-not).pptVIP

Lesson 21 Mad or not? mad adj. 发疯 sb. is mad “为……而疯狂(着迷)”的表示方法： be mad about/on?sth? be?mad?on?football??/?pop?music?/?jazz? eg. Im mad about English. be crazy about… eg. I slowly go insane/go crazy/go mad. They are going bananas. go bananas [b?nɑ:n?z] (go+adj.　变得……) =go crazy=go mad (变疯了) be mad at sb. 生某人的气(=be angry with sb.) Don’t be mad at him. ★reason n. 原因，理性 reasonable??adj.?合情合理的，良好的 ?at?a?reasonable?price?以合理的价格? for this reason 由于这个理由、原因 For this reason, I was late. for?some?resson?由于某个原因?(?some:?某一个，加可数名词单数)? bring sb. to reason 使某人讲理 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。 ★reason n. 原因，理性 give a reason 提出理由 the root reason 根本原因 the reason is that… 理由是… the reason why…is that… …的理由是… eg. The reason why I study English is that I envy those who speak English well. the reason for sth …理由 eg. What’s the reason for your absence? the reason to do sth 做某事的理由 eg. Is there any reason to go there? 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 ★reason n. 原因，理性 sum [s?m] n. 量，总数 The sum of 3 and 5 is 8. a sum of +不可数名词　 一笔…… a large sum of　 大笔的…… (large 指数量的大) a large sum of money 一大笔钱 a great many + 可数名词复数 a great number of + 可数名词复数 plenty of… 足够多的…… Success is the sum of small efforts. 成功就是一点点小小努力的积累。 sum [s?m] n. 量 plenty of , a lot of ,lots of ,a quantity of , quantities of ,a supply of ,supplies of , a mass of ,masses of 可与可数名词和不可数名词连用 a （large/good/great） number of ，a variety of , varieties of + 可数名词复数 A(good /great )many + 可数名词复数 (注： a (good /great )many of后面的名词复数前要the ,these,those,one’s 修饰） A large /good/great amount of ,amounts of , a great /good deal of +不可数名词 sum?up