新外研版初二下M3U3

Unit3LanguageinuseLanguagepractice1.I’vejustmadeamodelspaceship.2.Haveitarrivedyet?3.Astronautshavealreadybeentothemoon.4.Wehavenotfoundlifeonanyotherplanetsyet.现在完成时如何用呢？当我们要表达“某人曾经做过某事”,“某人已经做了某事”等意思时,英语要用“现在完成时”来表达。现在完成时的结构：has/have+done(动词过去分词)肯定句否定句疑问句I/We/You/Theyhavedone…I/We/You/Theyhavenot(haven’t)done…Haveyou/theydone…?He/Shehasdone…He/Shehasnot(hasn’t)done…Hashe/shedone…?Ihavejustheardthenews.我刚听到消息。Astronautshavealreadybeentothemoon.宇航员已经去过月球了。Wehavejuststartedtoexploreotherplanets.我们才刚刚开始探索其他行星。表达“刚刚做完某事”、“已经做完某事”时，使用现在完成时。如:Thescientistshavenotheardfromityet.科学家还没有收到它发出的信息。Manhasnotdiscoveredanylifeinspaceyet.人类尚未在太空中发现生命。just“刚刚”，already“已经”，两者都用于肯定句中，一般置于have/has之后。否定句中则用yet,表示“还（未）”。如：alreadyjusteveryetnever常与现在完成时连用的副词：肯定句疑问句和否定句置于句末其余的置于助动词have/has之后，过去分词之前A:Haveyou…?B:Yes,…/No,…(usingalready,just,ever,yet,never)playbasketballcallyourmumreadastoryswiminthepoolcleanthewindoweatpizzalistentomusicseethemovie现在完成时表示该事件是在现在之前的某一个时间里发生的，重点在于强调这一动作对现在的影响一般过去时只表示过去的某一具体时间发生的事情或过去常常发生的事情IhavejustbeentoLondon.Iwenttherelastmonth.我刚去过伦敦，是上个月去的。Ihavealreadyfinishedmyhomework.Ifinisheditanhourago.我已经写完作业了，一个小时之前完成的。当A问对方把自己的书放在何处时，他在意的是书目前在哪儿，故用现在完成时。B的回答着重的是当时的动作，故用一般过去时。A:Wherehaveyouputmybook?Ican’tfindit.B:Iputitonyourdeskyesterday.无明确过去时间状语时，判断使用现在完成时还是一般过去时的标准是：看该行为是否对现在有影响，即该句强调或在意什么，着重点是不是强调现在。A:Wouldyouliketogoandseethefilmwithmetonight?B:Sorry,I________italready.(see)Practisehaveseen注:word文档点击此处链接1.—Lily,whyareyoustillhere?Schoolisoverforhalfanhour.—BecauseI______mytaskyet.Istillneedonemorehour.A.won’tfinishB.didn’tfinishC.haven’tfinishedD.hadn’tfinished2.He___inthisfactoryfor20yearsalready.A.willworkB.worksC.hasworkedD.isworking3.—Mr.Liwillcheckourhomeworkthisafternoon.______you______it?—Notyet.I'mdoingitrightnow.A.Do;finishB.Had;finishedC.Will;finishD.Have;finished4.—TheAmazingSpiderMan2(蜘蛛侠2)isonthesedays.It’sfantastic.—Really?ButI_______ityet.A.didn’tseeB.won’tseeC.haven’tseenD.isnotseeing5.Julie’sfather________toLondonlastmonth.He________therethreetimes.A.went;hadgoneB.hasgone;hasbeenC.went;hasbeenD.hasbeen;hadgone6.—Dave,wewillleavein10minutes.Areyouready?—No,I______ourguidebookandtowelsyet.A.don’tpackB.didn’tpackC.havepackedD.haven’tpacked7.—____yourson______acamera?—No.He______onethissummervacation.A.Has...bought;willbuyB.Did...buy;boughtC.Does...buy;boughtD.Does...buy;willbuy8.—WhyisMr.Yangstillintheteachers’office?—Maybehe________hisworkyet.A.doesn’tfinishB.hasn’tfinishedC.haven’tfinished9.—WillyougoandseethemovieNetMotherwithme?—Thankyou.ButI_____italready.A.sawB.haveseenC.seeD.willsee10.Ibeganwatchinghereanhourago,butnownothing_____yet.A.happenB.willhappenC.happenedD.hashappened11.Ourmathteacher___inourschoolfor20yearsandhe___herewhenhewas23yearsold.A.hastaught,hascomeB.taught,comesC.taught,cameD.hastaught,came12.–I’dliketointroducemybestfriendtoyou,Peter.–Thankyou,Lucy.Butwe_____already.A.meetB.metC.willmeetD.havemetAstronautshave(1)_______beentothemoonbuttheyhavenotbeentoanyotherplanets.However,aspaceshiphas(2)_____arrivedonMarsandithas(3)______sentbackphotosoftheredplanets.IstherelifeonMars?Wedonotknow(4)______.alreadyjustalreadyyetP21Completethenewswithalready,justandyet.1SpaceshiponMars!☺ThespaceshiphasgonetoMars.Ithasgonetherebutithasnotcomebackyet.☺Astronautshavebeentothemoon.Theywentthereandthentheycameback.P222Lookatthesesentences.Nowchoosethecorrectanswer.1.Astronautshavebeen/gonetothemoonandreturned.2.Thespaceshiphasbeen/goneintospace.Itwilltravelfortendays.3.Theastronauthasbeen/gonetothespacestation.Hewillcomebacktomorrow.4.Thespaceshiphasbeen/gonetothespacestation.Itbroughtbacktwoastronauts.have/hasbeenhave/hasgone1.Aspaceship________toMars.Itiscomingbacktotheearthnextyear.2.Lotsofastronauts________tothespacestation.Theyfounditveryinteresting.3.Someastronauts_________tothemoontwice.4.TwoBritishastronauts________tothespacestation.TheywillcomebackinJanuary.hasgonehavebeenhavebeenhavegoneP233Completethesentenceswiththeexpressionsinthebox.Nicky:I’vejust(1)_______(watch)agreatTVprogrammeaboutspace.Didyouknowthatscientistshave(2)________(discover)wateronMars?Bill:Yes,Idid.Andscientists(3)________(try)tofindlifeonMarsnow.Nicky:Yes,they’relookingforlifebutthey(4)__________(notfind)anythingyet.Bill:ThereweresomenewphotosofMarsinthenewspapertoday.(5)______you_____(see)themyet?Nicky:Yes.They’reamazing!havenotfoundseenHavewatcheddiscoveredaretryingCompletetheconversationwiththecorrectformoftheverbsinbrackets.4P61Workinpairs.Role-playtheconversation.6Completetheemailwiththewordsinthebox.beenjustmetneverreadwrittenyetP23readbeennevermetwrittenyetjust1.TheastronautjoinedCNSA_______yearsago.2.Hehasflowninaspaceship______times.3.Hefelt______whenhewasinthespaceship.4.Hehasbeentothespacestation_______.5.Theearthwasblueandvery________whenhesawitfromthespacestation.6.Hedecidedtobeanastronautbecausehehasalwaysbeen_________inspace.beautifulinterestedP247Listenandcompletethenotes.sixtwoexcitedtwice8Completethewordmapwiththewordsandexpressionsinthebox.P25astronautMarsspaceshipspacestationthe