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Grammar情态动词非推测性情态动词shall,will,must,mustn’t,should,would的用法情态动词could,should/oughtto,may/might,needn’t+havedone表示假设的用法情态动词must,can/could,may/might,should/oughtto表猜测的用法情态动词的一些惯用法表示推测——情态动词的重要用法.肯定的推测可能的推测否定的推测疑问的推测must对将来对现在对过去情态动词may,mightcan’t,couldn’tcan,could+V.+V.+havedone常见mustbe+bedoing+V.+V.+havedone+bedoing可以用not表示“可能不”+V.+V.+havedone+bedoing+V.+V.+havedone+bedoing•Must+havedone表示对过去已经发生的行为进行推测,意为“想必/准是/一定作了某事”。1.Wemusthavelearned2,000wordsbytheendoflastterm.到上学期为止我们一定学了有两千个单词。2.HemusthavegonetoBeijing.他一定已经去北京了。•can/could+havedone表示对过去的行为的怀疑和不肯定,通常用在否定句和疑问句中。1.Cantheyhavewonthebasketballmatch?他们可能赢了篮球赛吗?2.Itcouldn’thavebeenMr.Green.HehasgonetoNewYork.那不可能是格林先生的,他已经去北京了。could(不用can)+havedone,在肯定句中表示“本来能够…而没能…”,具有婉转的批评和责备之意。Youcouldhavetoldmeearlier.你本该早点告诉我的。should/oughtto+havedone用于肯定句时,表示“本该做某事而实际上没做”,用于否定句时,则表示“不该做的事反而做了”。1.Youshouldhavetoldhimaweekago.你本来应该在一周前告诉他的。might(不用may)+havedone表示“本来可能…”,但实际上没有发生的事。另外,还可表示“本来应该或可以做某事”之意,含有轻微的责备语气。1.Youmightnothavetoldher.你本可以不告诉他的。(事实上你告诉他了)2.Youmighthavecomeearlier.你本可以早点来的。(但没有这样)needn’t+havedone表示做了本来不必去做的事。1.Sheneedn’thavegonetothestationyesterday.昨天她本不必到火车站去的.(昨天她去了)2.Youneedn’thaveboughtit.你本可不必买它的。(你买了)巩固练习1.Oh,I’mnotfeelingwellinthestomach.I____somuchfriedchickenjustnow.A.shouldn’teatB.shouldn’thaveeatenC.mustn’teatD.mustn’thaveeaten2.---Whyhasn’tJanearrivedyet?---She____againinthemorning?A.shouldn’thaveoversleptB.mayhaveturnedoffthealarmclockC.musthavenoonetocallherD.shouldhavesomeonetowakeherup3.---Didyougotothemoviethedaybeforeyesterday?----No.We___,butwedecidednotto.A.shouldhavegoneB.couldgoC.shouldgoD.couldhavegoneBBA4.Asitturnedouttobeasmallhouseparty,we____soformally.A.needn’tdressB.didn’thavetodressupC.MightnothavedressedupD.needn’thavedressedup5.I’mrathersurprisedyouhaven’treportedhimtoyourteacher.Inmyopinion,you___thisassoonasyoufoundouthewascheating.A.musthavedoneB.mighthavedoneC.shouldhavedoneD.couldhavedoneDC1.作为情态动词用,常用在否定句和疑问句中。Dare(need)+S+VS+daren’t(needn’t)+VIdaren’twalkthroughtheforestatnight.Dareyouwalkthroughtheforestatnight?Youneedn’treturnthebooknow.Needhegoyesterday?可兼做行为动词的情态动词:need、dare2.作实义动词用,常用在肯定句中,有人称、时态、和数的变化Heneedstogotherehimself.Hehasgrownup,wedon’tneedtoworryabouthim.3.Sth(sb)need(want,request)+doing/tobedoneThehouseneedscleaning/tobecleanedTheboyneedssendingtothehospitalatonce.句型时态动词情态动词dare实义动词dare肯定句现在时daredodare/darestodo过去时daredodaredtodo否定句现在时daren’t/darenotdodo/doesnotdare(to)do过去时darednotdodidnotdare(to)do疑问句现在时Darehedo?Doyou/Doeshedare(to)do?过去时Daredhedo?Didhedare(to)do2.Iwonderhowhe____thattotheteacher.A.daretosayB.daresayingC.notdaresayD.daredsayD4.Asitturnedouttobeasmallhouseparty,we____soformally.Aneedn’tdressB.didn’thavetodressupC.MightnothavedressedupD.needn’thavedressedupD1.判断正误:Howdareyousaysuchathing?Howdareyoutosaysuchathing?Hedaren’ttospeakEnglishbeforesuchacrowd,didhe?Hedaren’tspeakEnglishbeforesuchacrowd,darehe?Nobodyneedtobeafraidofcatchingthedisease.Nobodyneedbeafraidofcatchingthedisease.Thesedishesneedbecleanedcarefully.Thesedishesneedtobecleanedcarefully.Thesedishesneedcleaningcarefully.hadbetter(最好),should(应该)与oughtto(应该)均为提建议、阐述观点的情态动词,其后接动词原形。should比hadbetter语气强,oughtto语气最强。一般情况下should与oughtto可通用。例1:你最好立即去那里。Youhadbettergothereatonce.例2:你应该努力工作。Yououghtto/shouldworkhard.(一)否定句hadbetter,should,oughtto用于否定句时,否定词均位于其后,具体形式为:hadbetternotdo,shouldn't/shouldnotdo,oughtn‘ttodo。例1此时你最好别出发。:Youhadbetternotstartatthistime.例2:她不应该浪费时间。Sheoughtn'ttowastetime.(二)一般疑问句hadbetter,should,oughtto用于一般疑问句时,分别将had,should,ought提至句首。例1:他最好立即出发吗?Hadhebetterstartearlyatonce?例2:你应该这么做吗?Shouldyoudolikethis?例3:他应该去那里吗?Oughthetogothere?(三)反意疑问句陈述句谓语动词含hadbetter,should,oughtto时,反意疑问句为:had,should与ought+主格人称代词或hadn‘t,shouldn’t,oughtn‘t+主格人称代词。例1:你最好别回家,是吗?Youhadbetternotgohome,hadyou?例2:你应该认真学习,是吗?Youshouldstudyhard,shouldn'tyou?例3:你上课不应该讲话,是吗?Heoughtn'ttospeakinclass,oughthe?1.Theflowerisdead.I_______ityesterday.A.shouldwaterB.mustwaterC.shouldhavewateredD.mustn’thavewatered2.WhattimeoughtI_______?A.arrivedB.arrivingC.arriveD.toarrive3.He_______speaktohismotherlikethat.A.oughtnottoB.doesn’toughttoC.notoughttoD.oughttonot4.Idon’tthinkwe’dbetter_______itanymore.A.discussB.discussingC.todiscussD.discussed5.Yououghtto_______him,butyoudidn’t.A.helpB.helpedC.helpingD.havehelpedCDAAD;竹篮轻而易举、痛快淋漓、不露声色地将她羞辱咯壹番,还让她哑巴吃黄连,有苦说不出!成果真是令人欣慰。不过就是壹个小小的黄毛丫头,果真是嫩得很!吟雪和月影早早就端来咯醒酒汤和宵夜,但是她们谁也不敢吭壹声。爷在教丫鬟读书识字,多么难得的机会呀,千万不能影响咯丫鬟。于是,放下咯爷吩咐的汤水和吃食,两个人悄没声地退到咯门外候着。两个丫头虽然人在外面,可是都在全神贯注地竖着耳朵听着里间屋的动静,生怕爷再有什么吩咐,她们没有听到,被爷指摘怡然居没有规矩。可是,爷和丫鬟怎么好像越说越不对劲儿咯呢?丫鬟这么大学问的人,怎么可能还能有丫鬟不认识的字?哎呀,丫鬟怎么好像是在哭呢?王爷此时仍在继续看他的书。成功地解决咯惩治冰凝的事情,他的心情格外地舒畅!料她也不好意思把这件事情讲给玉盈姑娘听,就算是说给咯玉盈,爷也不怕!爷对这个侧福晋有多好,亲自教她读书认字,这王府里哪个诸人能有这么高的待遇?他的书看咯有多久,冰凝的眼泪就流咯有多久,就像是止不住的泪泉。可是,不管她流咯多少的泪,她都咬紧咯嘴唇,壹声不吭。她已经丢咯颜面,她不能再失咯尊严。因此,她强力隐忍着,隐忍着,到后来,她都能够感觉到口中有咯壹股血腥的味道,那是因为她为咯不哭出声,早就把嘴唇都咬破咯。她也恼恨自己怎么这么没出息,这么丢脸的事情,自己怎么除咯哭,什么抗争的法子都没有咯?平时那个足智多谋、聪明伶俐的自己去咯哪里?于是她拼命地想将泪水憋回去,却是无论如何努力都是徒劳无益。王爷虽然壹直在看书,但是他壹刻也没有停止对冰凝的留意观察。他知道她在流泪,也发现她强忍着不哭,渐渐地,好像是有壹种佩服的情绪在滋长:这个年氏,虽然诡计多端,但性子倒是够硬,是条汉子
本文标题:高一英语下册情态动词课件1
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