新概念2lesson21

1、Lesson 21Mad or not? New words and expressions生词和短语mad adj 发疯的mad adj 发疯的1.sb. be mad 2.“为而疯狂（着迷）”的表示方法： a. be mad about Im mad about English. b. be crazy about c. go bananas （go+adj.变得)They are going bananas. =going crazy=going mad (变疯了) I slowly go crazy/go mad/go bananas.3.be mad at sb 生某人的气reaso

2、n n. 原因for this reason 由于这个原因For this reason, I was late.由于这个原因，我迟到了。For what reason? 是为了什麽原因？bring sb. to reason 使某人讲理sum n. 量a large sum of:大量的，喜欢跟钱连用一大笔钱a large sum of moneysum 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

3、数名词连用可与可数名词和不可数名词连用 a number of ，a variety of , a good/great many,a great number of 后接可数名词复数后接可数名词复数 a good/great many of 后面的名词复数前要有后面的名词复数前要有the/these/those/ones a great amount of， amounts of ，a great/good deal of 后接不可数名词后接不可数名词 a (large)sum of 修饰货币修饰货币determined adj 坚定的，下决心的坚定的，下决心的be determined t

4、o do sth.下决心做某事下决心做某事 表示下决心做某事，句型知多少？表示下决心做某事，句型知多少？make up ones mind to do sthdecide to do sthmake a decision to do sth课文讲解课文讲解Mad or not?1、Mad or not? = mad or not mad? or not 在疑问词的后面，表示在疑问词的后面，表示“是还不是是还不是”，选择概念，选择概念2、Aeroplanes are slowly driving me mad. 1). aeroplane = airplane 飞机飞机 2). drive sb

5、 mad 把某人逼疯把某人逼疯 （难点（难点P94) e.g. You are driving me mad. e.g.The teacher is slowly driving me mad.drive drove driven 开车开车drive into 赶进赶进drive back 撵回撵回drive out of 把把赶出去赶出去 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

6、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

7、for weeks.2)for some reason由于某个理由 some+可数名词单数：某一可数名词单数：某一 some book some+可数名词复数：一些可数名词复数：一些 some books some+不可数名词：一些不可数名词：一些 some water Ill tell you some day. Well 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 the

8、ir homes by the noise.1) come into use:投入使用投入使用 come into:进入得到、获得财富进入得到、获得财富 e.g.They put this method into use.e.g.This method comes into use.e.g.This method is put into use.2) over = more than3) away from 离开离开4) Home ,family与与 house 的区别（的区别（P94难点）难点）home:家家,强调有感情强调有感情;house仅仅指房子仅仅指房子;family:家人家人 ho

9、me=family+house6.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.1). one of 的用法（的用法（3点）点） +名词复数名词复数 +谓语动词的单数谓语动词的单数+形容词的最高形容词的最高2）left表示被留下来的，表示被留下来的，leave过去分词

10、过去分词, left作定语后置作定语后置 left 剩下的剩下的东西，相当于东西，相当于“Who are left (by the others) 其他人走了留下他们其他人走了留下他们” I have a bag left. There is ten cents left in my pocket. （cent sent n.(货币单位货币单位)分分, 分币）分币）3）knock down 拆散，撞倒拆散，撞倒 offer v. 提供（相当于given）双宾语的被动语态中，主语有两种可能; 以sb.做主语或以 sth. 做主语give sb. sth.被动sb. be given sth.gi

11、ve sth. to sb.被动 sth. be given to sb.双宾语在变被动时用离动词最近的宾语做主语原文句型结构 sb. be offered sth.7.Everybody says I must be mad and they are probably right.1）Everybody不定代词作主语谓语动词用单数不定代词作主语谓语动词用单数2）must be 表表对现在事实的肯定对现在事实的肯定推测推测 动词语态动词语态英语动词有两种语态 主动语态：主语是动作的执行者 被动语态：主语是动作的承受者 Many people speak English.(主动语态) Engli

12、sh is spoken by many people.(被动语态)模仿上列句子连词成句1.Silk, produce, in Hangzhou.2.Cars, make, in Tianjin.3. tea, grow, in Fujian.4.English, speak, in Australia.5.Glass, produce, in Germany.6.Ships, make , in Japan.被动语态构成被动语态构成 助动词助动词+及物动词的过去分词及物动词的过去分词 （ be + P.P.)以以see为例，比较主动语和态被为例，比较主动语和态被动语态的结构形式动语态的结构形

13、式时态主动语态被动语态(be+过去分词）一般现在时see / seesam(is,are)+seen一般过去时sawwas(were)+seen一般将来时will (shall) +seewill(shall)+be+seen(过去将来时)would(should)+seewould(should)+be+seen现在进行时am(is,are)+seeingam(is,are)+being+seen(过去进行时)was(were)+seeingwas(were)+being+seen现在完成时have(has)+seenhave(has)+been+seen(过去完成时)had+seenhad

14、+been+seen含情态动词情态动词+see情态动词+be+seen肯定句，否定句及疑问句如下。Cars are made in Changchun. Cars are not made in Changchun. -Are cars made in Changchun? (-Yes, they are./No,they arent.) Where are cars made? p26被动语态使用方法被动语态使用方法 When can we use the passive voice?1.不知道动作的执行者是谁，或没有必不知道动作的执行者是谁，或没有必要指出动作的执行者时。要指出动作的执行者

15、时。 My bike was stolen last night. Letters are collected at eight every morning. 2. 为了强调或突出动作的承受者时。为了强调或突出动作的承受者时。 The desk was made by Master Wang. The bag was taken away by his sister. 3. 为了更好地安排句子为了更好地安排句子The well-known person got on the bus and was immediately recognized by people. （一个主语就够了） 4. 在

16、上下文中，为了使句子间连接在上下文中，为了使句子间连接紧密时。紧密时。如：如： I have a new skirt. It was given to me as a birthday present by my aunt. 主动语态改为被动语态的方法 将主动语态的宾语改为被动语态的主语。将主动语态的宾语改为被动语态的主语。 将主动语态的谓语动词改为将主动语态的谓语动词改为“be+过去分过去分词词”结构。结构。 将主动语态的主语改为介词将主动语态的主语改为介词 by之后的宾之后的宾语，放在谓语动词之后（有时可省略）。语，放在谓语动词之后（有时可省略）。将下列句子改成被动语态。 1.We use

17、 English as a foreign language. English is used as a foreign language( by us) 2. People write business letters in English Business letters are written( by people) in English. 3.They make telephone calls in English. Telephone calls are made( by them) in English. 4.Travelers and business people use En

18、glish. English is used by travelers and business. 5.Farmers grow rice in Zhejiang. Rice is grown by farmers in Zhejiang主动语态变为被动语态时注意主动语态变为被动语态时注意1. 含直接宾语和间接宾语的主动语态变为被动语态时有两种情况: 2. Eg He gave the boy an apple. (1)把间接宾语改为主语,直接宾语保留不变: The boy was given an apple (2)把直接宾语改为主语,此时,间接宾语前要 加to或for. An apple

19、was given to the boy. (give, pass, show, send- to ) (buy, draw, make, -for )1.含双宾语的被动含双宾语的被动My father gave me a new book on my birthday . -A new book was given to me (by my father )- I was given a new book (by my father). 2.不带的to不定式,改为被动语态时不定式前要加to.They watched the children sing. The children were watched to sing . 3.短语动词是不可分割的整体,改为被动语态时要保持其完整性,介词或副词不可遗漏.We must take good care of the young trees. Young trees must be taken good ca