2010年高考高考英语语法复习课件-情态动词[1].ppt

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1、情态动词modalverbs1.--IsJohncomingbytrain?--Heshould,buthe____not.Helikesdrivinghiscar.(2002高考题）A.mustB.canC.needD.may2.Ithasbeenannouncedthatcandidates(候选人)____remainintheirseatsuntilallthepapershavebeencollected.(2002上海高考题）A.canB.willC.mayD.shall3.--Ih

2、eardtheywentskiinginthemountainslastwinter.(2002北京高考题）--It____truebecausetherewaslittlesnowthere.A.maynotbeB.won’tbeC.couldn’tbeD.mustn’tbe情态动词表示推测不表示推测cancouldmaymightshallshouldmustwillwouldoughttohavetodare(daren’t)need(needn’t)usedtoIdaren’taskhe

3、rforarise.我不敢请求她加薪.Howdidyoudaretotellherthat?Iwonderwhetherhedarestandupinpublic.Idon’tknowhowshedarestowearthatdress.Doyouneedanyhelp?Iwonderwhetherheneedsenditimmediately.Ineedhardlytellyouthattheworkisdangerous.Thegardendoesn’tneedwateringatthemo

4、ment.Youneedn’tfinishthatworktoday.可兼做行为动词的情态动词：need、dare情态动词(+动词原形)行为动词.needdare1.无人称和数的变化;2.尤其用于：*否定句及疑问句中;*在if/whether之后;*或与hardly,never,noone,nobody连用;3.常以needn’t和daren’t的形式出现;4.dare有其过去时dared.多用于肯定句;(sb.)needtododaretodo(sth.)needtobedone(sth.)n

5、eeddoing判断正误:Howdareyousaysuchathing?Howdareyoutosaysuchathing?Hedaren’ttospeakEnglishbeforesuchacrowd,didhe?Hedaren’tspeakEnglishbeforesuchacrowd,darehe?Nobodyneedtobeafraidofcatchingthedisease.Nobodyneedbeafraidofcatchingthedisease.Thesedishesneedb

6、ecleanedcarefully.Thesedishesneedtobecleanedcarefully.Thesedishesneedcleaningcarefully.注意对need问句的回答:--NeedIfinishtheworktoday?--Yes,________________.No,________________.No,________________.youmustyouneedn’tyoudon’thavetoneedn’t对其它情态动词的回答:--ShallItell

7、Johnaboutit?--No,you__________.--Mustwedoitnow?--No,you__________.needn’t(don’thaveto)needn’t(don’thaveto)表示推测——情态动词的重要用法.1.YoumustbeMrSmith----Iwastoldtoexpectyouhere.2.Hemusthaveknownwhatwewanted.3.Wemayhavereadthesamereport.4.Hecan’thavesleptthrou

8、ghallthatnoise.5.There’ssomeoneoutside----whocanitbe?6.Whatcantheybedoing?7.Thesepillsmighthelptocureyourdisease.8.Youcouldberight,Isuppose.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/should对将来对现在对过去情态动词may,mightcan’t,couldn’tcan,could+V.+V.+havedone常见m