Unit3Grammar课件译林版英语八年级下册-1

8BUnit3TheworldatoneclickGrammarLiverpoolMusicSportCulturetheBeatlesthemusicscenefootballmuseumsculturalbuildingsan

amazing

andlively

cityReviewDanielreceivedamessagefromhisnewonlinefriendMarkintheUK.WhattensesareusedinMark’swords?LeadinMarkthesimplepasttense&thepresentperfecttenseWhatarethediffrencesbetweenthem?DanielDifference:usageDifferenceinusageDifference:usageDifference:usage现在完成时(thepresentperfecttense):表示过去的动作或状态持续到现在，或对现在造成的影响，可能持续发生下去。Difference:usage一般过去时(thesimplepasttense):

表示过去某个时间发生的事、存在的状态或经常发生的动作。说话的侧重点只在于陈述一件过去的事情，不强调对“现在”产生的影响。thesimplepastthepresentperfect动作发生在过去并持续到现在动作的结果直到现在动作发生过的次数Difference:verbformMyfamilymoved

toLiverpool

twoyearsago.MyfamilyhasmovedtoLiverpoolfortwoyears.肯定句动词形式不同Differenceinverbform否定句助动词不同动词形式不同Myfamilydidn’tmovetoLiverpool

twoyearsago.Myfamilyhasn’tmovedtoLiverpoolfortwoyears.Difference:verbform一般疑问句Didmyfamily

movetoLiverpool？HavemyfamilymovedtoLiverpool？助动词不同动词形式不同Difference:verbformTenseStructurethesimplepasttensethepresentperfecttense

肯定句：S+V过去式

+…/S+was/were...否定句：S+didn’t+V原+…/S+wasn’t/weren’t+…一般疑问句：Did+S+V原

+…

?

Yes,…did./No,…didn’t.Was/Were+S+…?

Yes,…was/were./No,…wasn’t/weren’t.

肯定句：S

+have/has+V过去分词

+…否定句：S

+haven’t/hasn’t+V过去分词

+…一般疑问句：Have/Has+S+V过去分词

+…?

Yes,…have/has./No,…haven’t/hasn’t.Difference:verbformDifference:timeexpressionsTense

Thetimeexpressions(标志词)thesimplepasttensethepresentperfecttenseyesterday,in1980,lastweek,…ago,justnow,theotherday等already,ever,for,just,recently,(not)yet,sofar,uptonow,until/tillnow,since,never,before,in/over/duringthepast/lastfewyears,次数等DifferenceintimeexpressionsPartA：PracticeonlinevisitsWheredidtheyvisitonline?Whatcanweknowfromtheseonlinemuseums?handicraft,exhibits(展品),openinghours,ticketinformation,transportationroute,360-degreeexhibition(展览)...adj.数字式的PartA：PracticeHavetriedhaveseenvisitedhaveplayedhasvisitedhaslearntn.青少年亲自，亲身FurtherthinkingWhatarethedifferencesandsimilaritiesbetweenonlinemuseumsandrealmuseums?onlinemuseumsrealmuseumsspreadculturalknowledgeworkaslearningplaceshavedifferentthemes...visitanytimeandanywhereprovide3Dmodelsbefree...seeandevenfeeltheexhibitssometimesneedaticketjoinactivities...PartB：Practiceintroducedhasvisitedhavecollectedsignedvisitedhaveputhavevisitedhasn’tvisitedwrotehavealreadysentsignv.签（名）；和...签约signup(forsth.)报名

n.标牌，指示牌；签名trainingn.训练，培训train

v.训练；培养

n.火车；队列n.目录，清单DanielhasalsosenthisreportaboutonlinetourstoMark.Wheredotheyplantovisit?PartC：Practiceadj.便利的；方便的PartC：Practicedecidedhasmadetoldhasbeenpayincash

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bookedbook

v.预定；预约

n.书；著作MyfamilytripS1:Iamplanningafamilytrip.Lastweek,Ivisitedthewebsiteof...Museum.Ilearntaboutandsaw...(Whatdidyousee/doontheonlinemuseum?)S2:Sofar,Ihaveknownabout...

(Whathaveyouknownabouttheonlinemuseum?)S3:Therefore,Idecidedtovisitthe...Museumin...(city)asI...lastyear.I...(Whatdidyouknowaboutthecitybefore?)S4:Thankstotheinternet,Ihaveprepared...online.I...(Whathaveyoupreparedforthefamilytripsofar?)Planafamilytriptorealmuseums(usethesim