人教版八年级下册英语unit3---5-单元语法点+练习题复习课件

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过去进行时一、基本用法表示过去某一时刻或某一段时间正在进行的动作,常与其连用的时间状语有at...(o’clock)yesterday/lastnight,atthistimeyesterday,atthattime/moment等。如:Mikewasreadinganewspaperat9:30lastnight.Juliawascleaningherbedroomatthistimeyesterday.用于含有when或while引导的时间状语从句的复合句中。若when/while引导的从句的动作发生了,主句的动作正在进行,则从句用一般过去时,主句用过去进行时。如:Whenhermothercamein,Maywasplayingthepiano.Iwascookinginthekitchenwhenyoucalledme.Whilethestudentslaughed,theteacherwaswritingsomewordsontheboard.注意:when/while引导的从句都可表示过去发生的动作,但when从句中的动词可以是瞬间动词,也可以是延续性动词,而while从句中的动词必须是延续性动词。若when/while引导的从句的动作正在进行,主句的动作发生了,则从句用过去进行时,主句用一般过去时。如:HemethisfriendwhenhewasstudyinginLondon.Ibegancookingwhilethewaterwasheating.while引导的状语从句还可表示从句的动作正在进行的同时,主句的动作也在进行之中。如:WhileLindawassleeping,JennywashelpingMarywithherhomework.有时由上下文表示出来。如:—YouwereoutwhenIdroppedinatyourhouse.—Oh,IwaswaitingforafriendfromEnglandattheairport.二、句式结构肯定句:主语+was/were+动词-ing形式+其他.否定句:主语+was/were+not+动词-ing形式+其他.一般疑问句:Was/Were+主语+动词-ing形式+其他?三、与一般过去时的区别过去进行时强调动作在过去“正在进行”;一般过去时则强调动作“发生”在过去或状态在过去“存在”。试比较:Suewaswritingane-mailtoherfriendatthattime.(强调“正在写”)Suewroteane-mailtoherfriendlastnight.(强调发生了“写”的动作)Suewastiredlastnight.(强调过去的状态)although,sothat和untilalthough是连词,意为“虽然;尽管”,同though一样引导让步状语从句。它们引导的让步状语从句既可放在主句之前,也可放在主句之后。另外,在英语中although或though不能和but同时出现在一个句子中,但它们之间可进行句型转换。如:Although/Thoughwelostthegamethistime,weareagoodteam.Heranouttolookforhisdog(,)although/thoughitwasrainingheavilyatthattime.Although/Thoughhelikedthetoyplaneverymuch,hedidn’tbuyit.=Helikedthetoyplaneverymuch,buthedidn’tbuyit.sothat是连词,既可以引导目的状语从句,也可以引导结果状语从句。引导目的状语从句时,意为“以便;为了”,从句中常使用can,could,may等词;引导结果状语从句时,从句中一般不用这类词,意为“因此;结果”。如:Iopenedthewindowsothatthefreshaircouldcomein.(引导目的状语从句)Theclasswasboringsothatsomeofthestudentsfellasleep.(引导结果状语从句)until可作介词,也可作连词。当句子为肯定句时,until表示句子的动作或主句的动作一直持续到until短语所表示的时间或until引导的从句动作发生或状态出现为止,这时意为“一直到……时(为止)”,这时句中或主句中的动词为延续性动词。如:Isleptuntiltenthismorning.Let’swaituntiltherainstops.当句子为否定句时,until表示句子的动作或主句的动作在until短语所表示的时间或until引导的从句动作发生或状态出现之后开始,这时意为“直到……才……”。如:Ididn’tsleepuntiltenlastnight.Ididn’tbegintoworkuntilPaulhadgone.1.—Whatwereyoudoingat8:00lastSunday?—I_________rubbishwithmyclassmatesbyZijiangRiver.A.pickedupB.ampickingupC.waspickingupC2.Mymother_________thedisheswhenIgothome.A.haswashedB.iswashingC.washedD.waswashing3.—WhatwereyoudoingwhenIphonedyouyesterdayevening?—Iwasdoinghomeworkwhilemyparents_________dinner,grandma.A.cookedB.cookC.werecookingCD4.IsawJeffinthepark.He_________onthegrassandreadingabook.A.sitsB.satC.issittingD.wassitting5.—HaveyouwatchedthemovieTheLeftEar?—Yes,I_________itlastnightwithmysister.A.havewatchedB.watchedC.willwatchD.waswatchingDB6.—It’stoolate.Ihavetogonow.—Oh,it’srainingheavilyoutside.You’dbetterwaithere_________itstops.A.untilB.sinceC.whileD.though7.Juliedidn’tleaveheroffice_________thepolicearrived.A.howeverB.wheneverC.whileD.untilAD8._________hehadfailedmanytimes,hedidn’tgiveupandsucceededintheend.A.UnlessB.AlthoughC.If9.Thetomatoisinfactafruit,_________itiseatenasavegetable.A.becauseB.ifC.whenD.althoughDB一、劝告(Advice)A.You’dbetterstayinbedandhaveagoodrest.You’dbetternotdrinkteabeforesleep.Youshouldgetupearlytoday.Youshouldn’tshoutatyourparents.Youneedtogotheretomorrow.Youdon’thavetobuyagiftforme.Don’tstayuptoolate!Pleasestandinline.B.Allright.OK.Thankyouverymuch.Iwon’t.Thanks.Thankyouforyouradvice.二、建议(Suggestions)A.ShallwegoforapicnicthisSaturday?Let’sgohometogetherafterschool.What/Howabouthavingacupofcoffee?Whydon’tyouaskMissLinforhelp?Whynotgototheparkbytaxi?B.①OK.Great.That’sagoodidea!Soundsgreat!Thatsoundsgood!②I’mafraidIcan’t.Ihavetodomyhomework.I’mafraidnot.根据对话内容,在空白处填入恰当的句子,使对话完整、通顺。A:Hi,Kevin.Youlookunhappy.(1)_____________________________________?B:Ididn’tpasstheEnglishexamagain.A:I’msorrytohearthat.Butpleasedon’tgiveup.B:Well,maybemywayoflearningEnglishisnotright.A:(2)_______________________?B:IlearnitbydoingmyEnglishhomeworkearlyinthemorning.What'swrong/thematter(withyou)HowdoyoulearnEnglishA:Oh,youshouldreadbooksonEnglishinstead.It’seasytorememberthingsearlyinthemorning.Don’tyouthinkso?B:Mm...,perhapsyou’reright.(3)______________________.A:DoyoutakenotesinEnglishclass?B:Never!Ijustlistentowhattheteachersays.Whatdoyouthinkofmyway?A:(4)______________________.Youshouldwritedowntheimportantthingsthattheteachertellsyouinclass,andreviewthemasoftenaspossibleafterclass.I'llhaveatryIdon'tthinkthat'sgoodB:OK.I’lldoasyoutellme.A:Goodluck!B:(5)______________________.ThankyouⅠ.根据句意及所给首字母提示,补全所缺单词。1.IleftmyEnglishtextbookathome.MayIbyours?2.Victordoesn’tlikemathandndoeshiscousin.3.IthinkreadingthisnovelisusefulbutMomthinksit’sjustawoftime.4.Jessica,whyareyoualwayssittingthereins?Pleasesaysomething.borrowneitherwastesilence5.Idon’tunderstandwhatyousaid.Canyoueitagain?6.Marie’sawentoffat6:30thismorning,butshedidn’thearit,soshewaslateforschool.alarmexplain1.Don’tpointatotherswithyour_____,Ben.It’simpolite.2.Thereisnoneedto________withothersaslongasyoutryyourbest.3.Please____yourclothes,Katie.Theyareinamess.4.Ithinkit’s_____toletsuchyoungkidsmakemoney.Ⅱ.根据句意,从方框中选择恰当的单词填空,有的需要变换形式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