PeriodThreeGrammar基础落实Ⅰ.用didn’tneedtodo或needn’thavedone完成句子1.Hewasstudyingatschool,sohe______________(serve)inthearmy.2.Itoldmyteacherwhathadhappenedandthenhetoldmehehadknownit.I________________(tell)himanything.3.MyclassmatespokegoodEnglishsoI________________________________(translate)theconversationforher.4.He________________________(go)tothebank—hehadborrowedsomemoneyfromMary.5.Whatapity!Youcouldhaveenteredfree—you________________________(buy)aticket.Ⅱ.用情态动词(not)+havedone填空1.It________________rainedlastnight,forthegroundiswet.2.Mr.Smith________________gonetoBeijing,forIsawhiminthelibraryjustnow.3.He________________passedtheexam,buthewastoocareless.4—.WhathashappenedtoGeorge?—Idon’tknow.He________________gotlost.5.I________________boughtsomuchwine—onlyfivepeoplecame.Ⅲ.完成句子1.Wehadplentyofbread,soI____________________anotherloaf.我们有许多面包,因此我不需要再买一条了。2.Igotupearly,butI________________________soearly,becauseIhadnoworktodothatmorning.我起床起得很早,但我本来不必起那么早的,因为那天早上我没什么事做。3.Thereissomethingwrongwithhiscarandit_____________________________________.他的车出毛病了,需要修理。4.You__________________worryabouthissafety.你不必担心他的安全。5.____________________________getupsoearly?你有必要起这么早吗?6.I____________________somereferencebooks.我需要买一些参考书。7.________________________________foryoutotellhimthetruth.你没必要告诉他真相。8.Sheneedn’tfinishtheworktoday,______________?Shedoesn’tneedtofinishtheworktoday,__________________________?她今天不必完成这项工作,是吗?Ⅳ.单项填空1.—Thisisforyou.—It’ssoniceofyou,butyou________haveboughtsoexpensiveagift.A.mustn’tB.couldn’tC.needn’tD.mightn’t2.—Youdidn’twaitforMr.Blacklastnight,didyou?—No,butwe________.Hedidn’treturnhomeatall.A.couldn’thaveB.needn’thaveC.didn’tneedtoD.shouldwait3.Thebosshasgiveneveryoneaspecialholiday,sowe________gotoworktomorrow.A.can’tB.mustn’tC.needn’tD.shouldn’t4.Wearenowfacedwithanewprobleminvolvedinthepopularityofprivatecars________roadconditionsneed________.A.which;tobeimprovedB.that;tobeimprovedC.where;improvedD.when;improved5.Membersofourclub________payforthereadinginourbookstore.It’sfree.A.mustB.needn’tC.mustn’tD.oughtn’tto6.—Needyougonow?—Yes,I________.A.mustB.needC.mayD.can7.Ididn’tseeherintheconferenceroomthismorning.She______havedonethepresentationatthemeeting.A.couldn’tB.shouldn’tC.needn’tD.maynot8.You________parkhere!It’sanemergencyexit.A.wouldn’tB.needn’tC.couldn’tD.mustn’t9.I________havebeenmorethansixyearsoldwhentheaccidenthappened.A.shouldn’tB.couldn’tC.mustn’tD.needn’t10.Heisonlyahalfmetertallboy,sohe________aticket.A.mustn’thaveB.can’thaveC.doesn’tneedD.hastobuy11“.You________haveawrongnumber”,shesaid.“There’snooneofthatnamehere.”A.needB.canC.mustD.would12.I________havewatchedthatmovie—it’llgivemehorribledreams.A.shouldn’tB.needn’tC.couldn’tD.mustn’t13.You________buyagift,butyoucanifyouwantto.A.mustB.mustn’tC.havetoD.don’thaveto14.Mark________havehurried.Afterdrivingattopspeed,hearrivedhalfanhourearly.A.needn’tB.wouldn’tC.mustn’tD.couldn’t15—.I’msorry.I________atyoutheotherday.—Forgetit.Iwasabitoutofcontrolmyself.A.shouldn’tshoutB.sh...