一般现在时、现在进行时及一般过去时讲解(张)精.ppt
一般现在时、现在进行时及一般过去时讲解课件(张)第1 页，本讲稿共52 页He works.He is working.He worked.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。第2 页，本讲稿共52 页时态现在进行时：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。第3 页，本讲稿共52 页一般现在时 every,sometimes,at times always,usually,often,seldom,never,every,threetimesaday现在进行时一般过去时yesterday,last week,-ago,the other day,in+年,just now,When nowthese days,rightnow，Look,Listen.atPresent，at the moment312第4 页，本讲稿共52 页 Tom always gets presents on his birthday.They usually go to school at seven oclcok.My mother often watches TV on the computer.We sometimes play basketball after school.总 是通 常经 常有 时Hestwelve.Iamastudent.一般现在时：表示现在的状态或经常、习惯性的动作：第5 页，本讲稿共52 页Lily Lucy 第6 页，本讲稿共52 页现在进行时表示现在说话瞬间正在进行的动作。Sheisreadinginthereadingroomnow.Weareworkingonafarmthesedays.第7 页，本讲稿共52 页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?didntdoanyfindDidWasany第8 页，本讲稿共52 页1 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.第9 页，本讲稿共52 页1.Heisateacher.2.KangkangcomesfromChina.3.Iusuallytakethebustowork.先（一般疑问句）再（否定句）Isheateacher?Heisntateacher.DoesKangkangcomefromChina?KangkangdoesntcomefromChina.Doyouusuallytakethebustowork?Idontusuallytakethebustowork.句型变化操练第10 页，本讲稿共52 页4.Theyarehavingclasses.5.Janeplayedtheguitarlastnight.Aretheyhavingclasses?Theyarenthavingclasses.DidJaneplaytheguitarlastnight?Janedidntplaytheguitarlastnight.句型变化操练第11 页，本讲稿共52 页改一般疑问句的方法：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.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?DoDoesDid第12 页，本讲稿共52 页改否定句的方法：以此类推首先看有无be动词，如果有，在be动词后面加not.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+dont/doesnt/didnt+动词原形第13 页，本讲稿共52 页 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，实义动词还原第14 页，本讲稿共52 页Complete the sentences.王先生是我们的英语老师。1.Mr Wang _(be)our English teacher.2.Mr Wang _(not be)our English teacher.3._(be)Mr Wang our English teacher?4.Yes,_ _.No,_ _.is is not/isntIs he ishe isnt一般现在时第15 页，本讲稿共52 页 一、写出下列动词的第三人称单数形式 1.work_read_ 2.clean_write_ 3.teach_wash_ 4.guess_watch_ 5.go_do_ 6.study_fly_ 7.cry_play_ 8.have_第16 页，本讲稿共52 页 一、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第17 页，本讲稿共52 页大多数单词+s talk-talkslook-looks以辅音y结尾的单词变y为i加esflyflies（元音+y直接加s）以s,ch,sh 或者 x结尾的单词+es miss-misses watch-watches wash-washes fix-fixes 第18 页，本讲稿共52 页一般在动词原形后+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：writingtakinggettingrunningswimminggoing goaskwritetakegetrunswimasking第19 页，本讲稿共52 页动词过去式转换练习将下列动词变为过去式返回上页 订正答案1.look 2.live 3.stop4.carry 5.hope 6.think7.call 8.finish 9.want10.are 11.go 12.have13.do 14.get e16.say 17.see 18.put19.eat 20.take 21.read第20 页，本讲稿共52 页
