情态动词用法练习无忧

basesthonsth.IbasemyhopesonthegoodnewsIheardyesterday.我把希望寄托在昨天听到的好消息上。Thisnovelisbasedonhistoricalfacts.这个小说基于一个真实的故事。Wechoosewhatweeatbasedonnutrition.根据营养选择所吃的食品。及物表一时的动作不及物表状态HerpaintingshangintheNationalGallery.她的绘画作品在国家美术馆展出Thecurtainishungbymybrother.窗帘是我弟弟挂上去的。Theplantgrowsinthewild.这种植物长在野外。Theserosesaregrownbymybrother.这些玫瑰是我弟弟种的。Mystomachhurtsbadly.肚子疼得厉害。Myarmwashurtinanaccident.我的胳膊在车祸中受了伤。Thisnovelsellswell.这小说很好卖。Mycamerahasbeensoldtomyfriend.我的照相机卖给朋友了。情态动词情态动词注意对must问句的回答:--MustIfinishtheworktoday?--Yes,________________.No,________________.No,________________.youmustyouneedn’tyoudon’thavetowouldIwouldliketo…=I’dliketoIwouldrather…=I’dratherWouldyouplease…need12

考试中主要测试need作情态动词与作实义动词的区别need作情态动词时，后面跟动词原形，通常用在疑问句和否定句中，表示询问是否有“必要”，其否定形式为needn’t，表示“不必”；疑问形式为Need…do?极少用于肯定句。某些特殊的情态动词的用法need“需要”，作情态动词多用在否定式或疑问句中.

NeedIattendthemeetingtomorrow?我需要明天参加会议吗?Yes,youmust.No,youneedn’t.Youneednothandinthepaperthisweek.这一周你不必交论文。但need还可当作实义动词使用，这时need就象其他动词一样，有时态变化，第三人称，后面加带to的动词等特性。

DoIneedtogoatonce?Youdon’tneedtocomeback.Sheneedsanecklace.dare

考试中主要测试dare作情态动词和作实义动词的区别。dare“敢”，作情态动词，多用在否定或疑问句中。Thelittlegirldarenotspeakinpublic.小女孩不敢在公众面前说话。Dareyoucatchthelittlecat?你敢抓小猫吗?dare除用作情态动词外，更多的是当实义动词使用，用法同实义动词一样，要考虑人称，单复数，时态等。Doyoudaretowalkinthedark?你敢黑夜走路吗？Hedoesn’tdaretotelltheteacherwhathappenedthatday.他不敢告诉老师那天发生的事。Cf:Idaresay…Will/would表示“意志”，“意愿”“Whydidn’tyougoswimmingyesterday?“Well,Ididn’twanttogoalone,andnoone_________withme.Will作为助动词，表示“将”Weshall/willhavetohurryifwewanttocatchthetrain.wouldgo反意疑问句反意疑问句的疑问部分从情态动词后面的不定式.Hemustbeill,isn’the?Theycan’tknowthenews,dothey?ShemusthavebeentoBeijingbefore,hasn’tshe?(相当于现在完成时)Shemusthavebeenherethatday,wasn’tshe?(相当于过去时)Hemusthavefailedtheexaminmathsyesterday,didn’the?Helookssad.Hemusthavefailedthetest,hasn’the?反意疑问句Compare:Wemustbehereontime,_______we?我们必须准时到，是吗？Hemustbeill,_______he?他一定是病了，是吗？Let’s…,shallwe?我们…，好吗？Shallwe/I...？提出建议，征询对方意见。mustn’tisn’tmustmay/mightcanMust和may用在肯定句中Can用在否定句和疑问句中“Thatmustbeamistake.”“No,it______beamistake.”

can’t一、情态动词+行为动词完成式

情态动词+行为动词完成式即“情态动词+have+done表示对过去行为或动作进行推测、评论或判断。1.musthavedone

musthavedone表示推测过去某事很可能发生了，“一定”。其否定形式为：can’t/couldn’thavedone,表示过去不可能发生某事。例如：1）Sincetheditch(沟)isfullofwater,itmusthaverainedlastnight.2)Hemusthavegonehome.3）Youcan’thavemetmygrandmother.Shediedbeforeyouwereborn.2.may/mighthavedone

may/mighthavev-ed表示推测过去某事“也许”发生了.注：可能性程度而言，must最大，could其次，may更次之，might最小。例如：A:“IwonderhowTomknewaboutyourpast.”B:“Hemust/may/mighthaveheardofitfromMary.”couldhavedone在肯定句型中,往往用作委婉的批评.本可以做什么,而没做;有时也用作猜测.Youcouldhavetoldusearlier.Tomcouldhavetakenthedictionary.3shouldhavedone和shouldn’thavedone

shouldhavedone和shouldn’thavedone用于对已发生的情况表示“不满”,“遗憾”分别译为“本应该…”和“本不应该…”。例如：1）Ishouldhavelistentoyou.2)Youshouldn’thavequarrelledwithhimyesterday.oughttohavedone/oughtnottohavedone4.needn’thavedone

needn’thavedone表示过去做了某事，但没有做的必要，意为“本没必要…”。例如：Youneedn’thavewakenmeup;Idon’thavetogotoworktoday.Thelightinhisroomisstillon,sohe_____tobed.

A.mustn’thavegone B.musthavegone

C.shouldn’thavegone

D.can’thavegone析：选D。由于他房间里的灯还亮着推测，他不可能已经上床睡觉了，应填can’thavegone。Iwasreallyanxiousaboutyou,you_____homewithoutaword.(NMET2001) A.mustn’tleave B.shouldn’thaveleft C.couldn’thaveleft D.needn’tleaveBTomoughtnotto_____meyoursecret,buthemeantnoharmAhavetoldB.tellC.betellingD.havingtold

AWe______ataxithere,foritwasnotveryfar.A.mustn’ttakeB.needn’thavetakenC.mustn’thavetakenD.shouldn’ttakenB----Iwonderwhyheislate.----He______theearlybus.A.mightmissB.canhavemissedC.mustmissD.mayhavemissedDmustvshavetoHemustsayitinEnglish.()HehastosayitinEnglish.(