新概念第二册第21课课件

Lesson21Madornot?Newwords•1mad[mæd]a.发疯•2reason['ri:zən]n.原因•3sum[sʌm]n.量•4determined[di'tə:mind]•a.坚定的，下决心的madadj发疯的1.bemad发疯，发狂（强调状态）2.“为……而疯狂（着迷）”的表示方法：①bemadabout…I'mmadaboutEnglish.②becrazyabout…gomad发疯，发狂（强调转变）gocrazygoinsane（insane[in'sein]adj.患精神病的，精神病患者的，极愚蠢的）gobananas（go+adj.变得……)Theyaregoingbananas.=goingcrazy=goingmad(变疯了)Islowlygoinsane/gocrazy/gomad/gobananas.3.bemadatsb生某人的气4.drivesbmad逼疯reason1)n.原因forthisreason由于这个原因Forthisreason,Iwaslate.由于这个原因，我迟到了。forsomereason由于某个原因(some:某一个，加可数名词单数)giveareason提出理由therootreason根本原因thereasonisthat…理由是…thereasonwhy…isthat……的理由是…eg.ThereasonwhyIstudyEnglishisthatIenvythosewhospeakEnglishwell.我学习英语的理由是我羡慕那些讲英语很好的人。•2)理性，正常心智eg.Onlymanhasreason.只有人类才有理性。loseone’sreason丧失理智beyondallreasons毫无道理bringapersontoreason使（某人）明白道理，使不做糊涂事reasonableadj.合情合理的，良好的，尚可的atareasonableprice以合理的价格cause导致某事发生的起因thecauseofthefire大火的起因eg.Smokingisoneofthecausesoflungcancer.吸烟是肺癌的起因之一。sumn.量alargesumof:大量的，喜欢跟钱连用一大笔钱alargesumofmoneysumn.量•表“许多”的短语：•agreatmany+pl.•agreat/largenumberof+pl.•anamountof(money)•a(large)sumof(money)修饰货币n.大意，要旨thesumofaspeech演讲大意sumup(1)合计sumupalltheexpenses把所有的花费加起来(2)总结，概括eg.Tosumup,heagreeswithus.总的来说，他同意我们的观点。insum=inaword/inshort/inbrief总之，要言之determinedadj坚定的，下决心的determinevt.决定，确定，影响determineadateforameeting确定开会的日期determineonsth决定做某事determinetodostheg.WedeterminedtostudyEnglishhard.我们决定要努力学习英语。bedeterminedtodosth.下决心做某事eg.Iamdeterminedtostayhere.我决定留下来。表示下决心做某事，句型知多少？makeupone’smindtodosthdecidetodosthmakeadecisiontodosth课文讲解Madornot?1、Madornot?=madornotmad?ornot在疑问词的后面，表示“是还不是”，选择概念2、Aeroplanesareslowlydrivingmemad.1).aeroplane=airplane飞机2).drivesbmad把某人逼疯e.g.Youaredrivingmemad.drive(drove,driven)eg.Hedriveshiscarverybadly.3、Ilivenearanairportandpassingplanescanbeheardnightandday.nightanddayHeforgotthemanwithpassingtime.sleepingbaby正在睡觉的小孩waitingcar正在等待的车4、Theairportwasbuiltyearsago,butforsomereasonitcouldnotbeusedthen.•1)years前面不加确定的数词时，一般表示“许多年”yearsago=manyyearsago，weeks等的用法与它相似•Ihavenotseenhimforweeks.•2)forsomereason由于某个理由•some+可数名词单数：某一somebook•some+可数名词复数：一些somebooks•some+不可数名词：一些somewater•I’lltellyousomeday.•We’lltalkaboutitsomeothertime.•5.Lastyear,however,itcameintouse.Overahundredpeoplemusthavebeendrivenawayfromtheirhomesbythenoise.1)comeintouse:投入使用(永无被动，物作主语）comeinto:进入得到、获得财富eg.Theairportcameintouselastyear.这个机场去年投入使用。gooutofuse停止使用2)over=morethan3)awayfrom离开4)Home,family与house的区别home:家,强调有感情;house仅仅指房子;family:家人6.Iamoneofthefewpeopleleft.SometimesIthinkthishousewillbeknockeddownbyapassingplane.1).oneof的用法+名词复数+谓语动词的单数+形容词的最高2）left表示被留下来的，leave---left---left,left作定语后置,常放n.后.left剩下的……东西，相当于“Whoareleft(bytheothers)其他人走了留下他们”Ihaveabagleft.Thereistencentsleftinmypocket.（cent[sent]n.(货币单位)分,分币）3)sometimes有时候sometime（过去或将来）某时候sometime一段时间4）knockdown拆散，撞倒knockat敲knockout打昏knockoff下班；从…碰下去；优惠，折扣knockover撞翻，打翻，撞倒•Ihavebeenofferedalargesumofmoneytogoaway,butIamdeterminedtostayhere.•offerv.提供（相当于given）•offerhelp提供帮助•offerasumofmoney提供一笔钱•offerajob提供一份工作•offersbsth•offersthtosb•givesb.sth.——被动sb.begivensth.•givesth.tosb.——被动sth.begiventosb.bedeterminedtodosth下定决心要做•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•ManypeoplespeakEnglish.(主动语态)•Englishisspokenbymanypeople.(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+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。CarsaremadeinChangchun.CarsarenotmadeinChangchun.---ArecarsmadeinChangchun?(---Yes,theyare./No,theyaren’t.)Wherearecarsmade?p26被动语态使用方法1.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。•Mybikewasstolenlastnight.•Lettersarecollectedateighteverymorning.2.为了强调或突出动作的承受者时。•ThedeskwasmadebyMasterWang.•Thebagwastakenawaybyhissister.3.为了更好地安排句子•Thewell-knownpersongotonthebusandwasimmediatelyrecognizedbypeople.4.在上下文中，为了使句子间连接紧密时。•Ihaveanewskirt.Itwasgiventomeasabirthdaypresentbymyaunt.将下列句子改成被动语态。•1.WeuseEnglishasaforeignlanguage.→•Englishisusedasaforeignlanguage(byus)•2.PeoplewritebusinesslettersinEnglish→•Businesslettersarewritten(bypeople)inEnglish.•3.TheymaketelephonecallsinEnglish.→•Telephonecallsaremade(bythem)inEnglish.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.EgHegavetheboyanapple.→(1)把间接宾语改为主语,直接宾语保留不变:Theboywasgivenanapple(2)把直接宾语改为主语,此时,间接宾语前要加to或for.Anapplewasgiventotheboy.(give,pass,show,send---to)(buy,draw,make,----for)•4.TravelersandbusinesspeopleuseEnglish.→•Englishisusedbytravelersandbusiness.•5.FarmersgrowriceinZhejiang.→•RiceisgrownbyfarmersinZhejiang()Ourroommust___clean.A.keepB.bekeptC.tobekeptD.tokeep()-I'dliketobuythatcoat.-I'msorry.___.A.itsoldB.it'ssellingC.It'sbeensoldD.ithadbeensoldBC()Doctors___ineverypartoftheworld.A.needB.areneedingC.areneededD.willneed()Thesepapers___yet.A.havenotwrittenB.havenotbeenwrittenC.hasnotwrittenD.hasnotbeenwrittenCB()-Myshoesarewornout.__________________A.Ca