《人教高一英语Unit14.ppt》由会员分享，可在线阅读，更多相关《人教高一英语Unit14.ppt（18页珍藏版）》请在金锄头文库上搜索。
1、Unit14 你去睡一觉 2 你邀请他 3 你照你父母的话办 4 你抽这么多的烟 You dbettergetsomesleep You dbetternotinvitehim Youshoulddowhatyourparentstellyou Yououghtn ttosmokesomuch 最好 最好不 应该 不应该 必须 不许 不得不 不必要 Youmustgetsomesleep Youmustn tinvitehim Youhavetodowhatyourparentstellyou Youhaven tgottosmokesomuch Modelverbs must haveto
2、havegotto mustnot mustn t don thaveto haven tgotto hasn tgotto Mustsb Do Doessb haveto Have Hassb gotto 必须 应当 必须 不得不 表示义务 命令或必要 后接不带to的动词不定式 Soldiersmustobeyorders Wemustkeepourword 2 must用在否定句结构中表示 不允许 禁止 Hemustnotleavehisroom Youmustn tsmokeintheoffice 3 must用在一般疑问句中 肯定回答用must 否定回答用needn t或don tha
3、veto MustIhanditinbeforefive No you Yes you needn t don thaveto must must的用法 haveto和havegotto的用法 haveto由have to组成 因此具有have的各种时态 Heisaninvalidandhastohaveanurse Sheknewwhatshehadtodo Ishallhavetoreconsidermyposition Heisalwayshavingtoexercisejudgement 2 在口语中 havegotto也可以表示义务和需要 与haveto基本同义 Hehasgotto
4、gorightnow Hehasn tgottogojustyet must和haveto的区别 含义不同 must表示说话人的主观思想 强调个人意志和主观的决心 haveto侧重于客观上的必要 强调客观条件作用的结果 Youmustdoitnow Ihavetogonow 3 否定含义不同在否定句中 haveto表示不需要 must则表示不允许 Youdon thavetogothere Youmustn tgothere 2 适用时态不同must只能用于一般现在时和一般过去时 在间接引语中 haveto可用于更多的场合 ShesaidshemustdowellinherEnglish Ex
5、ercises Don tbelateagain You behereontime A mayB canC mustD needn tYou doitevenifyoudon twantto A can tB mustn tC needn tD haveto3 MustItakeabus No you Youcanwalkfromhere A mustn tB don tC don thavetoD hadbetternotto4 Itisrathercoldhere Shallwelightafire No we becausethingshereareeasytocatchfire A w
6、on tB can tC mustn tD needn t 1 Whentraveling you takecareofyourhealth 2 Insomepartsoftheworld you boilthewaterbeforedrinkingit 3 Ifyouhaveastomachpain you drinkhottea should must must haveto should oughtto 4 You takethismedicine butyourheadmayhurtlessifyoudoso 5 You swimimmediatelyafteraheavymeal 6
7、 You notwakemeupwhenyoucomein don thaveto shouldnot oughtnotto mustnot hadbetter homework Page13exercise2 Page79exercise1 2 3 1 We forherbecauseshenevercame A needn twaitB shouldn thavewaitedC mustn twaitD mustn thavewaited2 Whereismypen I it A mightloseB wouldhavelostC shouldhavelostD musthavelost3
8、 Janny havekeptherword Iwonderwhyshechangedhermind A mustB shouldC needD would B D B 4 We lastnight butwewenttotheconcertinstead A musthavestudiedB mightstudyC shouldhavestudiedD wouldstudy5 ItoldSallyhowtogethere butperhapsI forher A hadtowriteitoutB musthavewrittenitoutC shouldhavewrittenitoutD ou
9、ghttowriteitout6 It snearlyseveno clock Jack behereatanymoment A mustB needC shouldD can C C C 7 WhencanIcomeforthephotos Ineedthemtomorrowafternoon They bereadyby12 00 A canB shouldC mightD need8 Thatyoungmanhadmadesomuchnoisethathe nothavebeenallowedtoattendtheconcert A couldB mustC wouldD should9
10、 Bequick They forusatthechurchgaterightnow A mustwaitB musthavewaitedC mustbewaitingD oughttowait B D C 10 Whentheteacherspeaks wehavetokeepquiet A haven tweB don tweC mustn tweD oughtn twe11 Igothereatonce No Idon tthinkyou A Must havetoB Do needtoC Need mustD May oughtto12 He youmorehelp eventhoug
11、hhewasverybusy A mighthavegivenB mightgiveC mayhavegivenD maygive B A A 13 Peter comewithustonight butheisn tverysureyet A mustB mayC canD will14 Therewerealreadyfivepeopleinthecarbuttheymanagedtotakemeaswell It acomfortablejourney A can tbeB shouldn tbeC mustn thavebeenD couldn thavebeen15 Sorry I mlate I haveturnedoffthealarmclockandgonebacktosleepagain A mightB shouldC canD will B D A 16 Susan writtenareportlikethis A canhaveB mustn thaveC can thaveD oughttonothave17 You walkformilesandmilesamongthehillswithoutmeetingpeople A mustB mayC needDshould C B
