一般現(xiàn)在時的講解及用法

一般現(xiàn)在時的講解及用法一、定義與講解定義：一般現(xiàn)在時，表示經(jīng)常性的事情，經(jīng)常性的動作或一般性事實。只有在第三人稱單數(shù)用動詞的,三單變化”，其他用動詞的原形。注：1）第一人稱（I，we）第二人稱（you）第三人稱（He,She,they,it，所有的名字名稱）單數(shù)（一個人或事物）復數(shù)（兩個或兩個以上的人或事物）第三人稱單數(shù)（第三方的單個的人或事物，除了they）2）三單變化多數(shù)在動詞（不是名詞）后+seg:play一playslike一likes（1）直接在動詞詞尾加-s.ask---askswork-worksget---getsstay-stays（2）以字母s,x,ch,sh或o結(jié)尾的動詞，在詞尾直接加-es.watch---watcheswish---wishesfix-fixesdo---doesgo---goespass-passes（3）以“輔音字母加-y”結(jié)尾的動詞,要先變y為i再加-es.（輔音字母:除a,e,i,o,u這5個元音字母外的21個字母都是輔音字母；兀音字母加-y：stay--staysplay--playssay--saysbuy--buys輔音字母加-y:try---triesstudy-studiescry---criesfly---flies二、一般現(xiàn)在時的用法經(jīng)常性或習慣性的動作，常與表示頻度的時間狀語連用。時間狀語：everyday,sometimes,at...,onSunday，usually,onceaweekleavehomeforschoolat7everymorning.客觀真理，客觀存在，科學事實。Theearthgoesaroundthesun.表示格言或警句中。Practicemakesperfect.熟能生巧。注意：此用法如果出現(xiàn)在賓語從句中，即使主句是過去時，從句謂語也要用一般現(xiàn)在時。例：Columbusprovedthattheearthisround..現(xiàn)在時刻的狀態(tài)、能力、性格、個性。MisswangwritesgoodEnglishbutdoesnotspeakwell.在某些以here,there開頭的句子中，用一般現(xiàn)在時表示正在發(fā)生的動作。eg.Herecomesabus.公交車來了注：與一般現(xiàn)在時連用的時間狀語（表示時間的詞或詞組）（1）表示頻率的副詞：always,often,usually,sometimes.（2）時間狀語：onSundays,everyday,everymorning,everyyear.（3）表示頻率的詞組：onceayear,threetimesaweek.動詞有三種：實義動詞，be動詞，情態(tài)動詞（初一未涉及）5,—般現(xiàn)在時中，當主語是第三人稱單數(shù)，動詞是實義動詞（1）動詞變相應(yīng)的第三人稱單數(shù)形式（2）肯定句主語+動詞s+其它eg.（2011）Billoftengivesmoneytothepoor.（3）否定句主語+doesn't+動詞原形+其它eg.Billoftendoesn'tgivemoneytothepoor.（4）一般疑問句Does+主語+動詞原形+其它eg.Doesbilloftengivemoneytothepoor.肯定回答Yes，主語+does（Yes,hedoes）（6）否定回答No，主語+doesn't（No,hedoesn't）6，當主語不是第三人稱單數(shù)時（動詞沒有三單變化），動詞是實義動詞（1）肯定句主語+動詞原形+其它eg.Iwanttomarryyou.（2）否定句主語+don't+動詞原形+其它eg.Idon'twanttomarryyou.（3）一般疑問句Do+主語+動詞原形+其它eg.Doyouwanttomarryme?肯定回答Yes，主語+do（Yes,Ido.）否定回答No，主語+don't（No,Idont）be動詞的一般現(xiàn)在時有三種形式，即：am,is,are。如果主語是第一人稱I時，be動詞用am。Eg.肯定句：Iamastudent.我是一名學生。否定句：amnot一般疑問句：Ami肯定/否定回答：Yes,iam.Noiamnot.如果主語是you（你，你們）,they（他們，它們，她們）或名詞復數(shù)（兩個以上的人或物）時，be動詞必須用are。如：肯定句，否定句，一般疑問句及肯定、否定回答Youaremygoodfriend.TomandLilyaremygoodfriends.Theyaremygoodfriends.are與主語還可縮寫。如：Weare=We're，Theyare=They're,Youare=You're。而are與not可縮寫成aren't。如：Theyaren'tstudents.他們不是學生。但是am與not不能縮寫。3.如果主語是單數(shù)名詞、不可數(shù)名詞或單數(shù)第三人稱代詞(he,she,it)時，be動詞用is?？隙ň?否定句/一般疑問句及肯定、否定的回答如:Mymotherisateacher.我的媽媽是一名老師。Heisastudent.他是一名學生。is也可與主語縮寫，如：Heis=He's,Mymotheris=Mymother's等。但是Thisis不可縮寫。而is與not可縮寫成isn't。如:Thisisn'tabook.這不是一本書。三、課堂練習鞏固1,主語為第三人稱單數(shù)肯定句：He_gets(get)upatsix0clock.否定句：doesn't,get—般疑問句:Doeshegetupatsixo'clock.^肯定，否定回答)2，主語為第一人稱I__get__(get)upatsixo'clock.否定句：Idon'tgetupatsixo'clock.一般疑問句：Doyougetupatsixoclock.(肯定,否定回答)四、課堂強化練習(—)單項選擇題,Thepicturenice.A.looksB.islookedC.lookD.islooking,Shedownandsoonfallsasleep.A.liveB.lainC.laidD.sits,Theteacherustocometoschoolontime.A.askB.askingC.asksD.asked,Johnalwaysothers.A.helpB.helpingC.helpsD.tohelpHeforeighthourseveryday.A.workingB.toworkC.worksD.workedYou'dbetterathomeandyourhomework.A.tostay,doB.stay,doC.tostay,todoD.stay,todoHesitsdownandarest.A.havingB.haveC.tohaveD.hasUncleWangneveracake.A.makeB.tomakeC.makingD.makes(二)句子改錯IsyourbrotherspeakEnglish?Doeshelikesgoingfishing?Helikesplaygamesafterclass.Mr.WuteachsusEnglish.Shedon'tdoherhomeworkeveryevening.五、課后練習(一)用動詞的適當形式填空She(go)toschoolatseveno'clock.It's6o'clock.Theyare(eat)supper.Heusuallyupat17:00.(get)She(live)inBeijing.

Amy(be)herejustnow.(be)thereaflyonthetablejustnow?Myfather(watch)TVeveryevening.Myfather(make)toysthesedays.9．Amy(read)EnglisheverydayChenJiesometimes(go)totheparkwithhersister.(二)選擇填空1．Iwanthomeworknow.A.doingB.todoC.todomyD.domy2．It'stime.A.gotoschoolB.playgamesC.togohomeD.todomyhomeworks3．youtheblackboard?Yes,Iam.A.Can,cleanB.Am,cleaningC.Are,cleaningD.Doclean4．goandhelpher.A.Let'smeB.Let'susC.Let'sD.Let'stothingsaway.5．Whataretheydoing?Theyarethingsaway.A.putB.putingC.puttingD.carryD.theydoTOC\o"1-5"\h\z6．Dotheyhaveanewcar?Yes,.D.theydoA.theyareB.theyhaveC.theydon't7．Heoftensupperat6:00intheevening.A.haveB.hasc.ishavingD.iseatingIt's6o'clockinthemorning.He.A.getupB.getsupC.isgetingupD.isgettingupWhatareyoudoing?I'mTV.A.watchB.watchesC.towatchD.watchingWeanyChineseclassesonFriday.A.arehavingB.aren'thavingC.don'thaveD.arehaveTomanEnglishclassnow.A.ishavingB.hasC.havingD.haveAreyouplayingbasketball?No,weA.isn'tB.aren'tC.notD.don't13.Listen!Thegirl_intheroom.A.singsB.singingC.issingingD.aresinging14.Theboyis__tohisteacher.A.sayingB.speakingC.talkingD.telling(三)用括號內(nèi)動詞的適當形式填空。Heoften(have)dinnerathome.DanielandTommy(be)inClassOne.We(notwatch)TVonMonday.Nick(notgo)tothezooonSunday.they(like)theWorldCup?Whattheyoften(do)onSaturdays?yourparents(read)newspaperseveryday?Thegirl(teach)usEnglishonSundays.SheandI(take)awalktogethereveryevening.There(be)somewaterinthebottle.Mike(like)cooking.They(have)thesamehobby.Myaunt(look)aft