2020版八年级英语下册 Module 3 Journey to space Unit 3 Language in use课件 （新版）外研版.ppt

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1、Module3JourneytospaceUnit3现在完成时(二)【新知导引·悟】用所给动词的适当形式填空,并体会现在完成时的用法。1.I_____just_____(make)amodelspaceshipforourschoolproject.havemade2.We____________(find)lifeonanyotherplanetsyet.3.____it_______(arrive)yet?4.Astronauts_____already_____(be)tothemoon.5.Ihaven’t_______(start)yetbecauseI’m

2、notsurehowtomakeit.haven’tfoundHasarrivedhavebeenstarted【知识详解·记】(一)用法:现在完成时可以表示动作已经完成或刚刚完成,经常用just,already,yet等加以强调说明。just刚刚;刚才用于肯定句中助动词have/has之后,过去分词之前,already也可位于句末already已经yet还;尚;已经用于否定句或疑问句中句末(二)一般过去时与现在完成时的区别(1)一般过去时表示过去某时发生的动作或单纯叙述过去的事情,强调的是动作。*DamingreturnedthebiketoTonylastFrid

3、ay.上星期五大明归还了托尼的自行车。(2)现在完成时态的动作发生在过去,强调过去发生的动作对现在造成的影响和结果,而且造成的影响和结果还存在着。例如:IamveryproudbecauseChinahassentelevenspaceshipsintospacesuccessfully.我很自豪,因为中国已经成功发送了十一艘宇宙飞船进入太空。【语法强化·练】Ⅰ.用所给词的适当形式填空1.—Where___you____(buy)it?—I_______(buy)itinasupermarket.2.We_____already________(return)theb

4、ook.3._____they_____(build)anewschoolinthevillage?didbuyboughthavereturnedHavebuilt4.He_____________(notfinish)hisworkyet.5.MrWhite___just_______(arrive)home.hasn’tfinishedhasarrivedⅡ.用already,yet,ever或never填空1.Theboyisfreenow.Hehasfinishedthework_______.2.Haveyouvisitedthespacemuseum__

5、_?3.Mysisterhas_____madeacakebefore,soit’sherfirsttime.alreadyyetnever4.—Haveyoucleanedyourroom?—Not___.5.—Haveyou____readthebookaboutthebridge?—Yes,it’sfantastic.Ihave_______readittwice.6.Wehaveeatenupallthefruit_______,sowe’dbettergotothesupermarkettobuysome.7.MrSmithhasn’tacceptedthe

6、invitation___(还,仍然).yeteveralreadyalreadyyetⅢ.单项选择()1.(2018·白银中考)—Isdinnerready?—Not_________.A.alreadyB.justC.yetD.everC()2.Wow!You_________dinner!Let’seatnow.A.cookB.arecookingC.willcookD.havecookedD()3.—ThetownofHuarong_________alotinthepastfiveyears.世纪金榜导学号—That’strue.It’sbecomingmo

7、reandmorebeautiful.A.changedB.haschangedC.hadchangedD.ischangingB()4.—_________you_________wheretospendyourholiday?—Notyet.WemaygotoBeijing.A.Do;decideB.Did;decideC.will;decideD.Have;decidedD()5.—Peggy,wouldyouliketoseetheflowershowwithmetomorrow?—Sorry.I_________italready.A.wi