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1、情態(tài)動(dòng)詞用法例析1.—Isn'tthatJohn'scaroverthere?—No,it________behis—I'msurehiscarisred.A.can'tB.mustnotC.won'tD.maynot分析：A。該空表示“不可能是他的車”，應(yīng)填can't。點(diǎn)評(píng)：此題考查情態(tài)動(dòng)詞表示否定的推測(cè)性用法。can't不可能；mustnot不準(zhǔn)；maynot,won't不可，不能夠，不愿意。2.—Excuseme.IsthistherightwaytotheCentralPeople'sBroadcastingStation?—Sorry,Ia
2、mnotsure.Butit________be.A.mightB.willC.mustD.can分析：A。該空表示“或許是的”，應(yīng)填might。點(diǎn)評(píng)：此題考查情態(tài)動(dòng)詞表示肯定的推測(cè)性用法。will沒有推測(cè)性用法；must,can,might表示推測(cè)的可能性依次減弱。根據(jù)“Iamnotsure”可知，把握很小。3.It'sstillearly.You________hurry.A.mustn'tB.wouldn'tC.maynotD.don'thaveto分析：D。該空表示“沒有必要趕忙”，應(yīng)填don'thaveto。點(diǎn)評(píng)：此題考查情態(tài)動(dòng)詞的否定意念
3、。根據(jù)“It'sstillearly”可知，應(yīng)填don'thaveto沒有必要，不需要。4.—Susanlookssad.Didyoutellheraboutthebadnews?—Yes,butI________hersoearly.A.oughttohavetoldB.oughtnottohavetoldC.musthavetoldD.needn'thavetold分析：B。該空表示“我本來不應(yīng)該告訴她那么早”，應(yīng)填oughtnottohavetold。點(diǎn)評(píng)：oughtnottohavedonesth.意為“本來不應(yīng)該做……，實(shí)際上已經(jīng)做過”。5
4、.—Howmanypeoplewerehurtinthefire?—None.Thefirespreadquicklybuteveryone________escapefromtheburningbuilding.A.couldB.shouldC.wasabletoD.hadto分析：C。該空表示“每個(gè)人都成功地逃脫了”，應(yīng)填wasableto。點(diǎn)評(píng)：當(dāng)成功地完成某一具體動(dòng)作時(shí)，通常不用could而用was/wereableto來表示。這時(shí)was/wereableto相當(dāng)于managedto(dosth.)/succeededin(doingsth.
5、)，表示“經(jīng)過一番努力，終于能夠完成某事”。6.—Mary,Ihavewateredtheflowersforyou.—Thanks.You________them.Icouldmanageitmyself.A.needn'tdoB.needn'thavedoneC.mustn'tdoD.shouldn'thavedone分析：B。該空表示“你本來沒有必要替我澆花”，應(yīng)填needn'thavedone。點(diǎn)評(píng)：此題考查情態(tài)動(dòng)詞“needn'thavedone”結(jié)構(gòu)的用法，意為“沒有必要做……”，實(shí)則已經(jīng)做過了。shouldn'thavedone意為“不
6、應(yīng)該做……”，具有批評(píng)責(zé)備之意。復(fù)習(xí)情態(tài)動(dòng)詞1.can/could的用法①can/could表示對(duì)現(xiàn)在或?qū)淼那闆r的推測(cè)，常用“can/could+動(dòng)詞原形”結(jié)構(gòu)，多用于否定句或疑問句中，偶爾用于肯定句中，表示一種可能性。例如：Michaelcan'tbeapoliceman,forheismuchtooshort.Mostaccidentsinthehomecouldbeprevented.②can/could含有“能力、許可、請(qǐng)求或建議”的意義，用于肯定句或疑問句中。could可以代替can，語(yǔ)氣比較婉轉(zhuǎn)。例如：Someofuscanusethe
7、computernow,butwecouldn'tthreeyearsago.—CouldIuseyourbikenow?—Yes,ofcourseyoucan.2.will/would的用法①表示請(qǐng)求、建議等，would比will委婉。例如：Wouldyoucareforacupoftea? Wouldyoubesokindastotellmethetime?②would表示意志、愿望和決心。例如：Theyaskedusifwewouldtryagain.Evenifthesunweretoriseinthewest,Iwouldnevergive
8、in.③would表示估計(jì)和猜想。例如：Ithoughtitwouldbeveryeasy.Itwouldb
