《Language in use》Help PPT课件

Module12HelpUnit3Languageinuse祈使句表达说话人对对方的叮嘱、劝告、希望、禁止、建议、请求或命令等。祈使句一般以动词原形开头，无时态和数的变化。▲1.动词原形构成的祈使句肯定形式Do型，即动词原形（+宾语）+其他Be型，即Be+表语（名词或形容词）+其他否定形式：动词原形前加don't，也可以用否定副词never开头。祈使句此类祈使句喑含的主语是you，但通常省略。句首或句末有时加please，还可以加上称呼语，用逗号与句子主体隔开。Haveaniceday!祝你度过美好的一天！Don’twasteyourtime!别浪费时间了！Neverbelateagain!再也不要迟到了！Comethiswayplease!请走这边。Pleasebequiet,boys!男孩们，请安静！Makesurehe’swarm.确保他不受凉。Don’tusethelift.不要使用电梯。▲2.let’s构成的祈使句这类祈使句往往用于提出建议。肯定结构：Let+宾语+动原+其他否定结构：Don'tlet+宾语+动原+其他Let+宾语+not+动原+其他▲3.无动词祈使句祈使句还可用名词、形容词、副词以及以no开头的短语充当。Letthemgo!让他们走。Don'tlethimgo.=Lethimnotgo.别让他走。Help!救命！Careful!小心！Noparking!禁止停车！Handsup!举起手来！1.—____up,Anna.It'sseventhirty.—Onemoreminute,Mum.A.GetB.GetsC.GetingD.Got2.—I'mleavingnow.—___youturnoffthelightsandthecomputer.A.TomakesureB.MakesureC.MadesureD.Makingsure3.改为否定句Openthedoor,please.→__________thedoor,please.AADon'topen▲用法区别情态动词must,can,could表推测must表推测时常用在肯定句中，语气较为肯定，此时must可以翻译成“一定；准是”。can表推测时常用在否定句或疑问句中，是有把握的否定推测，意为“不可能”。could可以用于肯定句、否定句或疑问句中，也可以表示过去的可能性，表示可能发生，程度比can弱。请仔细对比下列一组句子Whosentthepresent?Canitbeyourbrother?是谁送来的礼物啊？会是你哥哥吗？（询问可能性）Itmustbeyourbrother.Isawhiminyourroomjustnow.肯定是你哥哥，我刚才看见他在你的房间里。（语气强烈，表示非常肯定）Itcan'tbemybrother.HeisstillinFrance.不可能是我哥哥，他还在法国呢。（表示不可能）Itcouldbeyourbrother.Hesaidhemightcomeback.可能是你哥哥。他说过他可能会回来。（表示猜测可能）1.Don'tlifttheboyup.That____beharmfulforhim.A.needB.couldC.shouldn'tD.can't2.ThatT-shirt____beexpensivebecauseit'smadebyafamousdesigner.A.can'tB.mustn'tC.mustD.should3.Thatman___bemyEnglishteacher.HehasgonetoCanada.A.needn'tB.mustn’tC.mustD.can’tBCD4.—Someoneisknockingatthedoor.—Who______itbeatthishourofday?A.mayB.canC.mustD.should5.—You____behappywiththestrongpublicsupportyou'vereceived.—Yes,you'reright.I'mreallyexcited.A.mayB.canC.mustD.needBC6.Johnson______beapoliceman.Heismuchtooshort.A.mayB.mustn’tC.shouldD.can’tDExercises1.Itisdangerous.You______keepout!2.Thesestairsarenotsafe.You_______usethem.3.Therocksarefallingdown.You_____gethit.4.Theriveristoodeep.You_______swiminit.5.Betty_____knowwhattodo,becauseshedidsomebasicmedicaltraining.1.Completethesentenceswithcould,mustormustn’t.mustmustn'tcouldmustn'tmust▲keepout意为“留在外面；置身......之外”。2.Underlinethecorrectwordstocompletethefirstaidinstructions.1Get/Donotgetmedicalhelpimmediately.2Ask/Donotaskthemwherethepainis.3Lift/Donotliftthembecauseyoumaydropthem.4Keep/Donotkeepthemwarm.3.Completetheposteraboutearthquakewiththecorrectformofthewordsandexpressionsinthebox.donotusehideunderkeepleavestayaway1__________fromthewindows.2__________atable.3__________thelift.4_________thebuildingquicklywhenthegroundstopsshaking.5_______calm.Whenthereisanearthquake…StayawayHideunderDonotuseLeaveKeep4.Completetheconversationwiththewordsandexpressionsinthebox.Tony:Damingistraininghardforthebigmatch.Lingling:Yes,theteamhasagood(1)_______thisyear.Tony:Ohno,Daming’s(2)_________.He’sdown!Lingling:Itlookslikehe’s(3)________.Tony:Daming,whathappened?chanceCoverinpainintroublemedicalchanceintroubleinpainDaming:It’smyleg.Lingling:(4)_______himwithmycoat.Tony:Butdon’tmovehim.Let’swaitforsomeonewith(5)________training.Lingling:Ok.Covermedical5.Completethenewsreportwiththecorrectformofthewordsinthebox.clearinsidepowerrocktroublewarnInformationiscominginthattherecouldbe(1)________becauseofheavyraininthenorth.Thegovernmentis(2)_________peopleaboutfalling(3)________.Someroadshavealotofrocksonthem,butpeoplearetryingto(4)______themquickly.Insomeplacesthereisno(5)________.Andpeoplemuststay(6)________tokeepawayfromfallingrocks.troublewarningrocksclearpowerinsideNowreadthereportagainandcheck(√)thetruesentences.1Thereareproblemseverywherebecauseofrain.2Thegovernmentiswarningpeopleaboutanearthquake.3Someroadsinthemountainshavealotofrocksonthem.4Peoplearetryingtocleartherocksofftheroads.5Thereisnoproblemwithpower.√√1Wewerehaving_________athomewhentheearthquakehappened.2Theroomstartedto__________.3Fathershoutedtoeveryonetogetunderthe__________.4Wecouldnotgetoutoftheroombecausethe_______wouldnotopen.5Myfathercalledforhelponhis____________.6Peoplecametohelpusandweleftour_________.6.Listenandcompletethesentences.dinnershakekitchentabledoormobilephoneflat7.Readthepassageandchoosethecorrectanswer.1Whatisthebesttitleforthispassage?a)2004Asiantsunami.b)Agirlsavestouristsfromtsunami.c)Underwaterearthquakes2WhatdidTillynotice?a)Watercomingtothebeach.b)Peoplewatchingthewater.c)Bubblesinthewater.3WhatdoesherteacherthinkofTilly?a)Sheisluckyb)Shedoesnotdosillythings.c)Sheisacleverstudent.√√√Aten-year-oldgirlsavedaboutonehundredothertouristsin2004bywarningthemthatatsunami...ten-year-old“十岁的”▲基数词+year(注意单数)+old用作形容词表示“几岁的”▲复合形容词结构：基数词—名词单数—形容词，在句中只能做定语，不能做表语。e.g.Shehasaeight—year—oldbrother.（中考链接）Idon'tbelievethatthis______boycanpaintsuchanicepicture.A.fiveyearsoldB.five-years-oldC.five-year-oldCbywarningthemthatatsunami...by意思是“通过；以（某种方式）”，后面常跟名词，代词，V-ing形式，表示通过某种方式、手段等。提问时用how。Theoldmanmakeshislivingbysellingnewspapers.by的其他几种用法：1、表示方位“在......旁边”。Hesatdownbythedoor.2、表示时间“在......之前”。Canyoufinishtheworkby5o'clock.3、表示交通方式“搭乘”。Igotoschoolbybike.4、by固定搭配。byt