情态动词-中考英语专题复习.ppt

RevisionforModalVerbs ThebasicusesofModalVerbs 1 Can Could过去式 语气更委婉 Can表示习惯能力 而beableto表示经过努力而做成了某事 2 在否定结构中 二者可以互换 1 在否定 疑问句中表示 对过去发生行为的可能性猜测 2 在肯定句中表示 本来可以做而未做 Thedoorwaslocked Shecouldn thavebeenathome Youcouldhavebeenmorecareful 1 May Might过去式 语气更委婉 1 在否定 肯定句中表示对过去动作的推测 也许是 2 Might have p p表示虚拟 表 劝告 责备之意 Eg 1 Shemaybestillwaitingforus 2 MayIcomein 3 Mayyouhaveahappyholiday Eg 1 Hemighthavespokentoheryesterday 2 Youmighthavetoldmeearlier 土豆 服装 1 Must 表示肯定的猜测 但只用于肯定句 而mustn t表示 禁止 不准 Must表示主观Haveto表示客观需求Havegotto多见于口语 3 must have p p 对过去事情的肯定猜测 Eg Theroadidwet Itmusthaverainedlastnight 1 Shall should 2 shall should have p poughtto 表示本应该做而未做 should过去式语气更委婉 Eg Youshouldhavebeenfiveminutesago Will would 1 情态动词用于否定 疑问句 条件从句中 eg 1 Dareyougoherealone 2 Howdareyoudosuchfoolishthings 3 Iwon tallowyoutoswimintheriver evenifyoudaredoit Dare dared 2 做实意动词后加不定式 eg Ihaveneverdaredtotellhimaboutit Need needed 1 情态动词用于否定句 疑问句 2 实意动词用法似dare 用作不定式 3 need not have p p表示 本来不需要做而做了 Oughtto 1 其否定式为oughtnotto 2 oughtto have p p表示本来应该做而没有做到 Eg Yououghtnottohavecutawaythetreesaroundtheoldbuilding 三点说明 1 情态动词 v表示对现在或将来动作的猜测 情态动词 have p p表示对过去动作的猜测 2 情态动词的过去式与原形相比 多点礼貌 少点冒昧 语气更为委婉 情态动词在一般疑问句中的回答 Canyousing MayIcomein MustIhandinthebooknow NeedIfinishitnow 典型错误 1 Hemustn tbeintheclassroom Can t 2 Youmightleavethebagonthebag mighthaveleft 3 Youmusthaveseenthefilmlastweek have tyou didn tyou 4 LimingmusthavebeentoJapan didn the hasn the 13 1 Therewerealreadyfivepeopleinthecarbuttheymanagedtotakemeaswell It acomfortablejourney can tbeB shouldn tbeC mustn thavebeenD couldn thavebeen D 14 2 Johnny you playwiththeknife you hurtyourself A won t can tB mustn t mayC shouldn t mustD can t wouldn t B 15 可编辑 16 3 Thefirespreadthroughthehotelveryquicklybuteveryone getout hadtoB wouldC couldD wasableto D 17 4 WhencanIcomeforthephotos Ineedthemtomorrowafternoon They bereadyby12 00 A canB shouldC mightD need B 18 5 Withsomuchworkonhand you toseethegamelastnight mustn tgoBshouldn tgoC couldhavegoneD shouldn thavegone D 19 6 TheyaredisappointedattheEnglishparty Theysaythatit betterorganized hadbeenB hadtobeC musthavebeenD couldhavebeen D 20 7 Shemusthaveforgottenabouttheclass doesn tsheB mustn tsheC hasn tsheD won tshe C 21 8 Seewho sthere itbeMary MayMustCanwill C 22 9 Jenny withhimatthattime forIwashavingdinnerwithherinmyhome can thavebeenB mustn thavebeenC mustbeD maybe A 23 10 Tom sfatherpromised You haveanewcomputerifyoupassthecomingexamination canB shouldC shallD may C 24 11 Didyouwalkedhomebyyourselflastnight Yes Idid ButIthinkI needn tB shouldn tC maynothaveD needn thave D 25 12 Wouldyouchangethisbucketforanother It holdwater OK I mreallysorry won tcan tdidn tdoesn t A 26 13 YououghttohavehelpedhimwithhisEnglish you A won tyouB oughtnotyouC shouldn tyouD wouldn tyou C 27 14 IthoughI somethingburni