初中八年级英语课件GrammarSimplepasttens

Grammar:Simplepasttenseandpresentperfecttense4A级景区What'sthis?Itisa4Ascenicspotnow.1.Iheardthenewsyesterday.我昨天听说了这条新闻。2.Ihave

heardthenews.

我已经听说过这条新闻。一般过去时现在完成时What'sthis?1.Theystayedinthehoteltwoweeksago.

他们两周前待在旅馆里。2.Theyhavestayedinthehotelfortwoweeks.他们已经在旅馆里待了两周了。一般过去时现在完成时Words&phrasesrevewThewaterwasclean.past过去Words&phrasesrevewThewaterisdirty.now现在一般过去时含义：过去某个时间里发生的动作或状态。

e.g.DanielwenttoBeijingtwoyearsago.Danielboughtanewcomputerlastmonth.丹尼尔两年前去的北京。丹尼尔上个月买了一台新电脑。Words&phrasesrevewThewaterhasbecomedirty.pastnow①动作发生在过去，持续到现在。②动作发生在过去，对现在有影响，有结果。③动作一直到现在，发生了很多次.现在完成时含义：Danielhaslivedhere

fortwoyears.丹尼尔已经在这里住了两年了。（一直在）Danielhasboughtanewcomputer.丹尼尔买了一台新电脑。（现在有电脑）MrWuhasbeentoCanada

twice.吴老师去过两次加拿大。（不止一次）时间轴pastnowfuture一般过去时一般现在时一般将来时现在完成时yesterday昨天...ago…之前3.lastmonth上月4.theotherday那天5.justnow刚才6.in+年在…年……一般过去时的时间状语for+时间持续了…时间once，twice...一次，两次等次数since+句子自从yet/already然而/已经ever,never曾经，从不just刚刚before以前……现在完成时的时间状语1.大多数动词：+edTheystayedinthehoteltwoweeksago.2.特殊动词：DanielwenttoBeijingtwoyearsago.3.be用was/wereThewaterwasclean.

动词（过去式）变化规则将下列动词变为过去式形式1.相信believe2.投票vote3.测试test4.保护protect5.冲走wash6.讨论discuss7.变成become8.是is1.believed2.voted3.tested4.protected5.washed6.discussed7.became8.was1.大多数动词：have/has+动词edDanielhaslivedhere

fortwoyears.2.特殊动词：Danielhasboughtanewcomputer.3.be用have/hasbeenMrWuhasbeentoCanada

twice.

动词（过去分词）变化规则将下列动词变为过去分词形式1.相信believe2.投票vote3.测试test4.保护protect5.冲走wash6.讨论discuss7.变成become8.是is1.believed2.voted3.tested4.protected5.washed6.discussed7.become8.beenLookatthefollowingsentencesinourbook.1.DidyouhearaboutthefireataschoolintheUKlastweek?(八上U8)2.Look,thisprogrammebegananhourago.(P34)3.Haveyounoticedthe“Tour”iconatthetopofthepage?(P36)4.Ithasbeenfamousforitstheatressincetheearlytwentiethcentury.(P37)一般过去时一般过去时现在完成时现在完成时TorFquestions.goReady?1.Ihavevisitedyourschoolthreedaysago.2.Ihavegoneshoppingyesterdaymorning.3.Iworkedheresince2017.FFF小测试visitedclimbedHavetriedhavelearnthavevisitedhaveclimbedDidtriedlearntAhavejustfinishedfinishedwrotehasalreadywrittenwashavenotbeenhavelivedlivedBbebuyreadreturnseeshowSaturday,15MarchHaveyoueverdreamtoftravellingaroundtheworldwithoutapassport?Yes,youcanrealizeyourdreambytakinganonlinetour.YesterdayDaniel(1)________meanonlinetouroftheUSA.I(2)_____never_____somanywonderfulpictruesbefore.showedhaveseenseeDshowseesawseenplacesofinterestLastweek,I(3)_______abookabouttheplacesofinterestintheUSA.I(4)_________20pagesalready.It’sreallyinteresting.Mydad(5)_____just________fromtheUSA,butI(6)_____never_____there.IhopeIcanvisittheUSAsomeday.bebuyreadreturnseeshowbeenboughthavereadhasret