新概念第二册第21课市公开课一等奖百校联赛获奖课件.pptx

Lesson21Madornot?第1页New words1 mad md adj.发疯2 reason ri:zn n.原因3 sum sm n.量4 determined dit:mind adj.坚定，下决心第2页mad adj 发疯 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 生某人气3.drive sb mad 逼疯第3页reason n.原因 for this reason for this reason 因为这个原因因为这个原因Eg:For this reason,I was late.Eg:For this reason,I was late.for for some some reason reason 因为某个原因因为某个原因 (some:(some:某一个，加可数名词单数某一个，加可数名词单数)the reason is that the reason is that 理由是理由是第4页sum n.量a large sum of:大量，经常跟钱连用一大笔钱a large sum of money第5页determinedadj坚坚定，下决心定，下决心determinevt.决定，确定，决定，确定，determinetodosth决心做某事决心做某事eg.WedeterminedtostudyEnglishhard.bedeterminedtodosth.下决心做某事下决心做某事eg.Iamdeterminedtostayhere.我决定留下来。我决定留下来。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？decidetodosthmakeadecisiontodosthmakeuponesmindtodosth第6页Listen and answerHave most of his neighbors left their homes ornot?What is the writer determined to do?第7页Aeroplanesareslowlydrivingmemad.Ilivenearanairportandpassingplanescanbeheardnightandday.Theairportwasbuiltyearsago,butforsomereasonitcouldnotbeusedthen.Lastyear,however,itcameintouse.Overahundredpeoplemusthavebeendrivenawayfromtheirhomesbythenoise.Iamoneofthefewpeopleleft.SometimesIthinkthishousewillbeknockeddownbyapassingplane.Ihavebeenofferedalargesumofmoneytogoaway,butIamdeterminedtostayhere.EverybodysaysImustbemadandtheyareprobablyright.第8页课文讲解课文讲解Mad or not?第9页1、Madornot?=madornotmad?ornot在疑在疑问词问词后面，表示后面，表示“是是还还不是不是”，选择选择概念概念2、Aeroplanesareslowlydrivingmemad.1).aeroplane=airplane飞飞机机2).drivesbmad把某人逼把某人逼疯疯（难难点点P94)e.g.Youaredrivingmemad.drive(drove,driven)eg.Hedriveshiscarverybadly.他他开开车车技技术术非常糟糕。非常糟糕。eg.Thefarmerdrovethecattleinthefield.那位那位农农夫把牛夫把牛赶赶进进田田里。里。eg.Ourarmydrovetheenemyback.我我们军队们军队把把敌敌人人赶回去赶回去了。了。eg.Duringthewar,manypeopleweredrivenoutoftheirhomes.战战争期争期间间，许许多人被赶出家园。多人被赶出家园。第10页3、Ilivenearanairportandpassingplanescanbeheardnightandday.nightandday 日日夜夜，夜以继日 passingplanes 过往飞机（passing是现在分词，作定语，起形容词作用，修饰planes，“经过(途经)，过往”）He forgot the man with passing time.伴随时间消逝，他忘记了那个人。sleeping baby 正在睡觉小孩 waiting car 正在等候车第11页4、Theairportwasbuiltyearsago,butforsomereasonitcouldnotbeusedthen.1)years前面不加确定数词时，普通表示“许多年”years ago=many years ago，weeks等使用方法与它相同 I have not seen him for weeks.2)for some reason因为某个理由 some+可数名词单数：某一可数名词单数：某一somebooksome+可数名词复数：一些可数名词复数：一些somebookssome+不可数名词：不可数名词：一些一些somewater 第12页5.Lastyear,however,itcameintouse.Overahundredpeoplemusthavebeendrivenawayfromtheirhomesbythenoise.1)comeintouse:投入使用投入使用(物作主物作主语语）eg.Theairportcameintouselastyear.2)over=morethan3)awayfrom离开离开4)Home,family与与house区分（区分（P94难难点）点）home:家家,强强调调有感情有感情;house仅仅仅仅指房子指房子;family:家人家人home=family+housemusthavedone对发生完事情有把握判断对发生完事情有把握判断musthavebeendone（被动形式）（被动形式）第13页6.Iamoneofthefewpeopleleft.SometimesIthinkthishousewillbeknockeddownbyapassingplane.1).oneof使用方法（使用方法（3点）点）+名名词词复数复数+谓语动词单谓语动词单数数+形容形容词词最高最高2）leave-left-left,left作定作定语语后置后置,常放常放n.后后,意思是意思是“剩下，剩剩下，剩下下”.Ihaveabagleft.Thereistencentsleftinmypocket.3)sometimes有时候有时候sometime（过过去或未来）某去或未来）某时时候候sometime一段一段时间时间sometimes几次，几倍几次，几倍（注：（注：这这是中国人使用方法，地道是中国人使用方法，地道说说法法是：是：severaltimes）4）knockdown拆散，撞倒拆散，撞倒knockat敲敲第14页Ihavebeenofferedalargesumofmoneytogoaway,butIamdeterminedtostayhere.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offersbsthoffersthtosbbe determined to do sth 下定决心要做第15页7.EverybodysaysImust bemadandtheyareprobablyright.1）Everybody不定代不定代词词作主作主语谓语动词语谓语动词用用单单数数2）mustbe表表对现在事实必定对现在事实必定推推测测第16页动词语态动词语态英语动词有两种语态主动语态：主语是动作执行者被动语态：主语是动作承受者Many people speak English.(主动语态)English is spoken by many people.(被动语态)第17页被动语态组成被动语态组成助动词助动词+及物动词过去分词及物动词过去分词（be+P.P.)第18页以以see为例，比较主动语和态被为例，比较主动语和态被动语态结构形式动语态结构形式时态主动语态被动语态(be+过去分词）普通现在时see/seesam(is,are)+seen普经过去时sawwas(were)+seen普通未来时will(shall)+seewill(shall)+be+seen(过去未来时)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+been+seen含情态动词情态动词+see情态动词+be+seen第19页主动语态改为被动语态方法将主动语态宾语改为被动语态主语。将主动语态宾语改为被动语态主语。将主动语态谓语动词改为将主动语态谓语动词改为“be+过去分词过去分词”结构。结构。将主动语态主语改为介词将主动语态主语改为介词by之后宾语，之后宾语，放在谓语动词之后（有时可省略）。放在谓语动词之后（有时可省略）。第20页必定句，否定句及疑问句以下。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第21页被动语态使用方法被动语态使用方法When can we use the passive voice?1.不知道动作执行者是谁，或没有必要不知道动作执行者是谁，或没有必要指出动作执行者时。指出动作执行者时。My bike was stolen last night.Letters are collected at eight every morning.2.为了强调或突出动作承受者时。为了强调或突出动作承受者时。The desk was made by Master Wang.The bag was taken away by his sister.第22页3.为了更加好地安排句子为了更加好地安排句子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.第23页将以下句子改成被动语态。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第24页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 was given to the boy.(give,pass,show,send-to )(buy,draw,make,-for )第25页1.含双宾语被动含双宾语被动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.第26页4.带复合宾语动词改为被动语态时,普通把主动语态宾语改为主语,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组成短语不及物动词带上介词或副词组成短语,相当于及物动词相当于及物动词,后面可带宾语后面可带宾语第27页Multiple choice questions1 d 2 d 3 c 4 b 5 b 6 c 7 b 8 b 9 b 10 d 11 c 12 c第28页