一般现在时、现在进行时及一般过去时讲解课件(53张ppt)-(1)

Heworks.Heisworking.Heworked.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…thesedays,rightnow，Look,Listen.atPresent，atthemoment•Tomalwaysgetspresentsonhisbirthday.•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：LilyLucy现在进行时表示现在说话瞬间正在进行的动作。Sheisreadinginthereadingroomnow.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.1.Heisateacher.2.KangkangcomesfromChina.3.Iusuallytakethebustowork.先（一般疑问句）再（否定句）Isheateacher?Heisn’tateacher.DoesKangkangcomefromChina?Kangkangdoesn’tcomefromChina.Doyouusuallytakethebustowork?Idon’tusuallytakethebustowork.句型变化操练4.Theyarehavingclasses.5.Janeplayedtheguitarlastnight.Aretheyhavingclasses?Theyaren’thavingclasses.DidJaneplaytheguitarlastnight?Janedidn’tplaytheguitarlastnight.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)MrWangourEnglishteacher?4.Yes,____________.No,_____________.isisnot/isn’tIsheisheisn’t一般现在时写出下列动词第三人称单数形式1.workworksreadreads2.cleancleanswritewrites3.teachteacheswashwashes4.guessguesseswatchwatches5..gogoesdodoes6.studystudiesflyflies7.crycriesplayplays8.havehas大多数单词+stalk----talkslook---looks以辅音y结尾的单词变y为i加esfly—flies（元音+y直接加s）以s,ch,sh或者x结尾的单词+esmiss---misseswatch---watcheswash----washesfix---fixes一般在动词原形后+ing以不发音的e结尾的，去e，+ing以辅音+元音+辅音字母结尾的，双写这一字母+ing动词-ing形式的构成：writingtakinggettingrunningswimminggoinggoaskwritetakegetrunswimasking1.looklooked2.livelived3.stopstopped4.carrycarried5.hopehoped6.thinkthought7.Callcalled8.finishfinished9.wantwanted10.Arewere11.gowent12.havehad13.dodid14.getgot15.comecame16.saysaid17.seesaw18.putput19.eatate20.taketook21.readread动词过去式练习动词过去式的构成规则动词不规则动词规则动词过去式的构成构成规则例词一般在动词末尾加–edlooklookedplayplayed结尾是e的动词加--dlivelivedhopehoped辅音字母+元音+辅音，双写最后的辅音，再加—edstopstoppedplanplanned结尾是“辅音+y”的动词，变“y”为“i”再加—edstudystudiedcarrycarried用所给动词的适当形式填空。1.Listen!Mary_________(sing)now.2.Ayoungman(run)ontheplaygroundnow.3.Mymother____(watch)TVplayeveryday.4.OldBush___(visit)Chinaagainlastmonth.5.I______(play)sportsthreetimesaday.6.Look!LucyandLily_____(read)books.7.There_(is)afootballmatchyesterday.8.Ourclass___(go)tothezoothreedaysago.issingingisrunningwatchesvisitedplayarereadingwaswent时态大比拼1、Shegotupatseveno'clockyesterday.（用now改写）Sheisgettingupnow.2、（用everyday改写）Shegetsupatseveno'clockeveryday.时态大比拼Tomcleanshisroomonweekends.（用twohoursago改写）Tomcleanedhisroomtwohoursago.1、Iusuallywashmyclothesintheafternoon.(用now改写)Iamwashingmyclothesnow.2、(用lastweekend改写)Iwashedmyclotheslastweekend.选择填空1、Mymotheroftenoranges.AeatB.eatsC.eating2.Myauntsometimesverywell.A.singB.singsC.singing3.Theyusuallyemailstotheirfriends.A.sendB.sendsC.sending4.Hedoesn’t______hishomeworkatschool.A.doB.isdoingC.does5.LilyandLucy_________fromAmerica.A.isB.areC.am6.thetigersalways___inChina?A.Does;liveB.Does;livesC.Do;live7.PeopleSpringFestivaleveryyear.A.celebratesB.celebrateC.celebratingBBAABcB一般现在时翻译句子1、小明正在做作业。2、小明经常写作业。3、小明昨天写作业了。XiaoMingisdoinghishomework.XiaoMingoftendoeshishomework.XiaoMingdidhishomeworkyesterday.