Module 5 Section Ⅲ　 Grammar——复习情态动词

复习情态动词Section IIIGrammar［语境自主领悟］码上扫一扫看精*微课后自主感悟先视察原句

①They couldgo anywherethey wished.

①②句中情态动词表示“有实力做

1.DWe couldsee thesun settingbehind the某事”white pagoda.

③句中，情态动词表示“不应当（做某

2.

③事）”We shouldnftwaste adrop ofwater.

④④⑤句中情态动词表示“推想”It maybe true.

3.

⑤⑥⑦句中，黑体部分均表示“必需“，He might have somefever.

4.

⑥但多表示主观意志,而多强Since itis raining,we have to staymust have toindoors.调客观上的须要

⑦We mustlearn Englishwell.

⑧句中意为“偏要，硬要”,常

5.must

⑧Must youlisten to the loudmusic at常表示质问或不耐烦night［语法精要点拨］和（是的过去式，语气更委婉）

1.can couldcould can（）表示实力1He canuse thecomputer skillfullynow,but hecouldnt lastyear.他现在能娴熟运用电脑了，但去年他不会（）表示可能性（确定句中表示“一时的可能性”），可译为“有可能；有时会”2个人在体育馆训练有时会很紧急Training byoneself ina gymcan behighly dangerous.——表不许可3一Can/Could I have alook atyour newpen一Yes,you can./No,you cant.——我可以看一看你的新钢笔吗？——可以/不行以［名师点津］表示允许时，在疑问句中用更委婉，在回答中一律用can couldcan在否定句、疑问句中表示推想或怀疑，译为“可能”4can/couldThat cantbe Mary——shes inhospital.那不行能是玛丽——她在住院Someone isknocking atthe door.Who canit be有人在敲门可能是谁呢？与或连用，表示“再也不为过”5cant enoughtooYou cantbe carefulenough.你再细心也不为过与的区分6can be able to表示“实力”时，只有与两种形式，仅表示具备的实力，不说明是否实施can cancould了努力表示实力时可以用于各种时态，用于过去时态表实力时，侧重指be able to beable to经过努力而成功做到某事The firespread throughthe hotelvery quickly,but everyonewas ableto getout.大火在整个宾馆内扩散开来，但每个人都成功逃出来了唧时训练］1用的适当形式填空can,could,couldnt,beableto

①It wasreally annoying;I couldntget accessto thedata bankyou hadrecommended.

②Can I have aword withyou Itwont takelong.31was ableto swimto thebank afterthe boatturned over.和

2.may might表示允许或征询对方许可，表示更加委婉的语气有时可与互换1might can/could一May Iwatch TVafter supper一Yes,you may./No,you mustnt.——晚饭后我可以看电视吗？是的，可以/不行以否定回答时，用或不用cant mustnft,couldnt表示可能性,可能性更小2mightThey mightbe havinga meeting,but Imnot sure.他们有可能在开会，不过我不确定放在句首可以表示祝愿3mayMay Godbless you!愿上帝保佑你！动词原形，意为“不妨”4may/might as well+If thatis thecase,you mightaswelltry.假如事情是这样的，你不妨一试［即时训练］用适当的情态动词填空2

①You may feel all the traininga wasteof time,but Ima hundredpercent surelater youllbegrateful youdid it.

②Life isunpredictable;even thepoorest mightbecome therichest.

③一May Ismoke inthis room一No,you mustn^/cant.与

3.must haveto二者均表示“必需”，但是指说话人的主观看法，而则强调客观须要1must haveto用于一般现在时，有更多的时态形式must havetoI haveto waithere becauseIhaveno umbrellawith me.我不得不在这儿等，因为我没带伞强调客观须要I mustrecite thetext thismorning.今日早上我必需背会这篇课文强调主观意志所构成的疑问句，回答的否定形式通常为或意为“不必要，2must needntdon*thaveto,不用，而一般不说表示“禁止”mustnt一Must wehand inour exercisebooks today一Yes,you must./No,you donthaveto/you neednt.——我们今日必需交上练习册吗？——是的，必需交上/不，没必要/不，不须要You mustntsmoke here.你绝不能在这里吸烟常表示有依据的、比较确定的推想只用于确定的陈述句，译为“确定，必定”3mustYour mothermust bewaiting foryou now.你的母亲现在确定在等着你表示“偏要，偏偏”4mustWhy mustyou alwaysinterrupt me你为什么非要始终打断我呢？［即时训练］3用的适当形式填空must,mustnt,haveto

①You mustbe carefulwith thecamera.lt costs!

②一Must Iturn downthe radionow一，No youneedt/doct haveto.

③My brotherwas ill,so Ihad tocall adoctor in.和

4.shall should用于第

一、三人称的疑问句，用来表示征询对方看法或请求指示lshallShall Iopen thewindow我可以打开窗子吗？Manager,someone iswaiting foryou.Shall hecome in经理，有人在等你，他可以进来吗？用于其次、三人称的陈述句，表示说话人的意愿，有“承诺”、“警告”、“叮2shall嘱”、“强制”、“威逼”等意思You shallget whatyou wantif youbehave well.假如你表现好的话，你就会得到你想要的东西表示承诺He shallbe sorryfor itone day,I tellyou.有一天他会后悔的，我告知你表示警告［名师点津］有时可用于某些从句中，表示说话人惊异、悲观等感情色调，常译为“竟然，怎should么会”I findit astonishingthat heshould beso rudeto you.他竟然对你这样无理，真让我惊异和

5.will would表示请求、建议，比更委婉客气1would willWould/Will youpass methe ball,please你可以把球传给我吗？表示意志、愿望和决心，用于过去的状况2wouldI willhelp youif youmeet withtrouble.假如你有麻烦，我乐意帮你She saidthat she would tryher bestto helpus.她说她情愿尽自己最大的努力来帮我们表示规律,意为“注定会，过去时用3will wouldYouwill regretforever ifyou losethis goldenchance.假如错过这次好机会，你注定会终生后悔的表示过去的习惯性动作；而表示过去常常做某事，强调现在不是这样了4would used toEach timehis mothersbirthday came,he wouldbuy hera present.每次到他母亲生日的时候，他都要给她买一件礼物表示过去的习惯My fatherusedtogo tothe officeby bikewhen hewas young.我父亲年轻的时候总是骑车去上班现在不是这样了[即时训练4]用填空will,would,used toDWheneverI wasin trouble,hewouldhelp me.

②I usedto drinkcoffee,but nowI drinkgreen tea.

③Fish willdie withoutwater.和

6.need dare作情态动词时，表示“须要；必需；表示“敢、敢于”常用于否定句和lneed dare疑问句中，后接动词原形，否定形式分别为和need notdare not

①你不必立刻回答他这个问题You needntanswer himthe questionimmediately.

②一Need wemake thetest——Yes,we must./No,we neednt.——我们须要做这个试验吗？——是的，须要/不，不须要

③If hedare go,Fil gowith him.假如他敢去，我就跟着他去和常用作实义动词，有时态、人称和数的变更，后面可接带的不定式2need dare toYou dontneed tobe toldtwice.不必告知你两遍Tom didntdaretodo it.汤姆不敢做那件事

7.had better表示“最好……”，运用时常缩写为无人称和数的变更，其否定式一般把d better,not放在之后had betterYoudbetter getsome sleep.你最好睡一会儿［语法应用落实］.单句语法填空I用适当的情态动词填空

1.Since youhave finishedyour work,there isno pointin stayingany longer;you mayas wellgohome.

2.You cankeep thebook fora month.After thatyou mustreturn iton time.

3.The boycould speakthree languageswhen hewas12years old.

4.It neveroccurred tome thatshe shouldlie tome again.

5.No studentshall goout ofthe schoolcampus after1000at nightwithout permissionaccordingtotheschool regulations.

6.You needntget themachine repairedthis week.I wontneed ituntil nextmonth.

7.It couldntbe thevocabulary thatcaused youthe problemin theexercise becauseyou knowalot ofwords.一

8.Lucy doesntmind lendingyou herdictionary.一She neednt.Pve alreadyborrowed one.

9.I reallycant thankyou enough.Its beenan amazingday!

10.She darenot goout aloneat night..单句改错II

1.We canchose betweenstaying athome andtaking atrip.chosef choose

2.We mustfound waysto protectour environment.foundf find

3.So realfriendship shouldabletostand allsorts oftests.后力口should be

4.You maybe careful-the trafficlights arentworking.mayfmust

5.If youtell hima secret,never willhe talksabout itwith anybodyelse.talksf talk

6.Ihavebeen practicingfor threeweeks now,but Istill couldntget usedto it——in fact,Ivenearly killedthree people.couldntf cant

7.I thoughtalthough shewas clevershe musthave difficultylearning aforeign language.mustf might

8.It hasbeen announcedthat studentswill remainin theirseats untilallthepapers havebeencollected.will shall。