新概念第二册第21课.ppt

Lesson 21Mad or not?,New words,1 mad md adj.发疯2 reason ri:zn n.原因3 sum sm n.量4 determined dit:mind adj.坚定的，下决心的,mad adj 发疯的,1.“为而疯狂（着迷）be mad about Im mad about English.=be crazy about go mad 发疯，发狂=go crazy2.be mad at sb 生某人的气3.drive sb mad 逼疯,reason n.原因,for this reason 由于这个原因Eg:For this reason,I was late.for some reason 由于某个原因(some:某一个，加可数名词单数)the reason is that 理由是,sum n.量,a large sum of:大量的，经常跟钱连用一大笔钱a large sum of money,determined adj 坚定的，下决心的,determine vt.决定，确定，determine to do sth 决心做某事eg.We determined to study English hard.be determined to do sth.下决心做某事eg.I am determined to stay here.我决定留下来。表示下决心做某事，句型知多少？decide to do sthmake a decision to do sthmake up ones mind to do sth,Listen and answer,Have most of his neighbors left their homes ornot?What is the writer determined to do?,Aeroplanes are slowly driving me mad.I live near anairport and passing planes can be heard night andday.The airport was built years ago,but for somereason it could not be used then.Last year,however,it came into use.Over a hundred people must havebeen driven away from their homes by the noise.Iam one of the few people left.Sometimes I think thishouse will be knocked down by a passing plane.Ihave been offered a large sum of money to go away,but I am determined to stay here.Everybody says Imust be mad and they are probably right.,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“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,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(物作主语）eg.The airport came into use last year.2)over=more than3)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 home=family+house must have done 对发生完的事情有把握的判断 must have been done（被动形式）,6.I am one of the few people left.Sometimes I think this house will be knocked down by a passing plane.1).one of 的用法（3点）+名词复数+谓语动词的单数+形容词的最高2）leave-left-left,left作定语后置,常放n.后,意思是“剩下的，剩余的”.I have a bag left.There is ten cents left in my pocket.3)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（注：这是中国人的用法，地道的说法是：several times）4）knock down 拆散，撞倒 knock at 敲,I have been offered a large sum of money to go away,but I am determined to stay here.offer v.提供（相当于give）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 sbbe determined to do sth 下定决心要做,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2）must be 表对现在事实的肯定推测,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)English is spoken by many people.(被动语态),被动语态构成,助动词+及物动词的过去分词（be+P.P.),以see为例，比较主动语和态被动语态的结构形式,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。将主动语态的谓语动词改为“be+过去分词”结构。将主动语态的主语改为介词 by之后的宾语，放在谓语动词之后（有时可省略）。,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,When can we use the passive voice?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。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。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The well-known person got on the bus and was immediately recognized by people.（一个主语就够了）4.在上下文中，为了使句子间连接紧密时。如：I have a new skirt.It was given to me as a birthday present by my aunt.,将下列句子改成被动语态。,1.We use 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 English.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,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: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 was given to the boy.(give,pass,show,send-to)(buy,draw,make,-for),1.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 care of.,4.带复合宾语的动词改为被动语态时,一般把主动语态的宾语改为主语,宾语补足语在被动语态中作主语补足语.He cut his hair short.His hair was cut short.They told him to help me.He was told to help me.5.注意:不及物动词不能用被动语态happen,take place,appearbut不及物动词带上介词或副词构成的短语,相当于及物动词,后面可带宾语,Multiple choice questions,1 d 2 d 3 c 4 b 5 b 6 c 7 b 8 b 9 b 10 d 11 c 12 c,