新概念第二册21课

1、Lesson 21 Mad or not? Lesson 21 Mad or not? 是不是疯是不是疯了了madmad adj. adj. 发疯的发疯的be mad 发疯，发狂 （强调状态）go mad 发疯，发狂 （强调转变）drive sb mad 逼疯/send sb madbe mad about sth 对疯狂的，狂热的/be mad on sthbe mad on football 对足球狂热reasonreason1) n. 原因reasonable adj. 合情合理的，良好的，尚可的at a reasonable price 以合理的价格reasonreason1) n.

2、原因for this reason 由于这个原因for some resson 由于某个原因( some: 某一个，加可数名词单数)sumsum1) n. 金额，款项a sum of money 一笔钱表“许多”的短语：a great number of + pl.a large number of + pl.2) n. 大意，要旨the sum of a speech 演讲大意sum up(1) 合计sum up all the expenses 把所有的花费加起来(2) 总结，概括eg. To sum up, he agrees with us. 总的来说，他同意我们的观点。in sum

3、= in a word / in short / in brief 总之，要言之determined adj. 有决心的，坚定的determine vt. 决定，确定，影响determine on sth 决定做某事/determine to do sth“决定做某事决定做某事”的表达：的表达：determine to do sthdetermine to do sthmake up ones mind to do sthmake up ones mind to do sthdecide to do sthdecide to do sthmake a decision to do sthmak

4、e a decision to do sth( decision( decision n.) n.)be determined to do sthbe determined to do sthl、一般将来时中的被动语态will/shall +be+过去分词例： When will the road be opened to traffic?这条路什么时候开通？例： Your watch will be repaired. 你的表将被修理。2、现在完成中时的被动语态have/has+十been+过去分词例：My bag has been stolen. 我的包己经被偷走了。例: This poi

5、nt has not been covered yet.这一点没有被提到。3、含情态动词的被动语态cancould be+过去分词must be十过去分词may/might be+过去分词must have been+过去分词例：Your watch can be repaired. 你的表能够被修理。例: He asked how the video could be operated.他间怎么样来操作这台DV机。课文讲解课文讲解1 1、Aeroplanes are slowly driving me mad.Aeroplanes are slowly driving me mad.driv

6、eeg. 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。2 2、I live near an airport and passing planes I live near an airport and

7、passing planes can be heard night and daycan be heard night and day(in fact the noise of passing planes can be heard night and day) （借喻）eg. I couldnt hear the actors. I couldnt hear the actors words.night and day/day and night表日夜3 3、The airport was built years ago, but for The airport was built year

8、s ago, but for some reason it could not be used then. some reason it could not be used then. for some reason 因为某种原因some: 某种（个）+ 可数名词单数to some extent 在某种程度上in some way 在某种意义上someonesomebodysomethingeg. Some Mr. Wang wanted you on the phone. 一位王先生打电话找你。4 4、Last year, however, it came into use.Last yea

9、r, however, it came into e into use 投入使用（永无被动，物作主语）eg. When did this word come into common use? 这个词什么时候广泛使用的？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eg. The present phone boxes will go out of use next year. 现有的电话亭明年停止使用。5 5、Over a hundred people must have been Over a hu

10、ndred people must have been driven away from their homes by the noise.driven away from their homes by the noise.over: more thanmust have done 对发生完的事情有把握的判断must have been done （被动形式）6 6、I am one of the few people left.I am one of the few people left.leftleave-left-leftleft作定语常放n.后eg. There is only 2

11、yuan left in my pocket. 我的口袋里只剩下2元钱。eg. There is nobody left in the room. 房间里一个人也没有留下。7 7、Sometimes I think this house will be Sometimes I think this house will be knocked down by the passing plane. knocked down by the passing plane. sometimes 有时候sometime （过去或将来）某时候some time 一段时间some times 几次，几倍 （本博

12、注：这是中国人的用法，地道的说法是：several times）关于knock的短语：knock at 敲knock at doorknock at windowknock off 下班；从碰下去；优惠，折扣knock over 撞翻，打翻，撞倒knock down 撞倒knock out 打昏eg. Knock it off. 住手！；住口！8 8、I hI have been offered a large sum of money ave been offered a large sum of money to go away, but l am determined to stay h

13、ere.to go away, but l am determined to stay here.offer vt. 提供，给予offer help 提供帮助offer a sum of money 提供一笔钱offer a job 提供一份工作offer sb sthoffer sth to sbgive sb sth give sth to sb被动 sb be given sth sb be offered stheg. He was given a job.eg. He was offered a job.被动 sth be given to sb sth be offered to

14、sbeg. A job was given to him.eg. A job was offered to him.be determined to do sth 下定决心要做9 9、Everybody says I must be.mad and they are Everybody says I must be.mad and they are probably bably right.I must be mad 有把握的判断eg. You must be hungry now.They are probably right. 他们可能是对的。They may be ri

15、ght. （可能性的判断）They might be right. ( might比may更加委婉，对判断的把握性更小一些)4. It couldnt be used then.It wasnt _ to use itA. able B. allowed C. impossible D. possible分析；D. 才能完成句子，使这个句子同前一句含义接近；A. 能够，通常是人作主语；B. 允许，不符合题意；C，不是不可能的，与题意相反。5. Over a hundred people must have been driven away _ they were. A.I think B. I m sure C. Certain D. Of course分析：B. 我确信，语气过为肯定，不表示推测：C. 是形容词，表“肯定的，缺主语与谓语，不符合语法和题意：D. 当然，过于肯定，含义不够准确：A. 我想，我认为，表示推侧。6. c 只有c. are some left 才能使这个句子比较接近前一句I am one of the few people left,因为few(少数几个)同some(一些)意思比较接近, a. are none left(一个没剩)不等于the few. b. is one left(剩下一个)也不