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《一般现在时、现在进行时与一般过去时讲解课件.ppt》由会员上传分享,免费在线阅读,更多相关内容在教育资源-天天文库。
1、时态大比拼Heworks.Heisworking.Heworked.何为时态?在英语中,不同时间发生的动作或存在的状态要用不同的动词形式来表现。时态现在进行时:一般现在时:一般过去时:现在正在进行的动作经常或习惯性的动作。过去某个时间或时间段结束的动作。一般现在时every,sometimes,attimesalways,usually,often,seldom,never,every…,threetimesaday现在进行时一般过去时yesterday,lastweek,--ago,theotherday,in+年,justnow,Whennow…theseday
2、s,rightnow,Look,Listen.atPresent,atthemoment312Tomalwaysgetspresentsonhisbirthday.Theyusuallygotoschoolatseveno`clcok.MymotheroftenwatchesTVonthecomputer.Wesometimesplaybasketballafterschool.总是通常经常有时He’stwelve.Iamastudent.一般现在时:表示现在的状态或经常、习惯性的动作:Look!LilyLucy现在进行时表示现在说话瞬间正在进行的动作。Sheisr
3、eadinginthereadingroomnow.Weareworkingonafarmthesedays.1、Lucydidherhomeworkathome.(改否定句)Lucy____________herhomeworkathome.2、Hefoundsomemeatinthefridge.(变一般疑问句)_____he___________meatinthefridge?3、Therewassomeorangeinthecup.(变一般疑问句)_____there_____orangeinthecup?didn’tdoanyfindDidWasany1一
4、般过去时表示过去某个时间结束的动作或存在的状态。Ididmyhomeworkyesterday.IplayedsoccerlastSunday.Icleanedmyroomlastweek.Iwenttothebeachthreeyearsago.Iplayedtenniswithmyfriendslastweekend.Iwenttothemoviesthreedaysago.Heisateacher.2.KangkangcomesfromChina.3.Iusuallytakethebustowork.先(一般疑问句)再(否定句)Isheateacher?Hei
5、sn’tateacher.DoesKangkangcomefromChina?Kangkangdoesn’tcomefromChina.Doyouusuallytakethebustowork?Idon’tusuallytakethebustowork.句型变化操练你会了吗?4.Theyarehavingclasses.5.Janeplayedtheguitarlastnight.Aretheyhavingclasses?Theyaren’thavingclasses.DidJaneplaytheguitarlastnight?Janedidn’tplaythegu
6、itarlastnight.句型变化操练改一般疑问句的方法:①首先看有无be动词,如果有,将be提到句首并大写,句末打问号.②如果没有be动词,看原句的动词形式来决定借用助动词do/does/did,并且行为动词要还原。V-原形V-s/esV-ed(过去式)+动词原形…?Do…Does…Did…改否定句的方法:以此类推①首先看有无be动词,如果有,在be动词后面加not.②如果没有be动词,看原句的动词形式来决定借用助动词do/does/did,并在后面加not,并且行为动词要还原。主语+don’t/doesn’t/didn’t+动词原形对比时态动词形式否定句一般问
7、句现在进行时一般现在时一般过去时表格对比学习be+v-ing(现在分词)在be后加上notBe提到句首V-原形V-三人单在实义v.前借do,does后加not,动词还原Do,Does提句首,+动原V-ed(过去式)在实义v.前借用did后加not,+动原Did提到句首,实义动词还原Completethesentences.王先生是我们的英语老师。1.MrWang_______(be)ourEnglishteacher.2.MrWang___________(notbe)ourEnglishteacher.3.______(be)MrWangourEnglisht