现在进行时与一般现在时的区别

一、概念不同：一般现在时表示主语经常性和习惯性的动作或存在的状态。现在进行时表示说话时（瞬间）正在进行的动作，也表示目前或现阶段一直进行的动作。如：Sheoftendoesherhomeworkintheevening.她经常在晚上做作业。Sheisdoingherhomeworknow.现在她正在做作业。现在进行时与一般现在时的区别二、在构成方式上的不同：一般现在时中谓语动词的构成有以下三种情况：①be动词的一般现在时形式：am，is，are.②动词have的一般现在时形式：have，has.③其他行为动词的一般现在时形式有动词原形或第三人称单数形式。而现在进行时中谓语动词的构成是：am/is/are+动词的-ing形式（现在分词）。三、时间状语不同：一般现在时的时间状语主要有：always，usually，often，sometimes，everyday，onSundays，inthemorning/afternoon/evening等；现在进行时的时间状语主要有：now，thesedays，thisweek，atthemoment等，有时句首有“Look！”、“Listen！”或“It’s+时刻”等词、句存在。如：Weplayfootballintheafternoon.我们在下午踢足球。（一般现在时）Mymotherisreadinganewspapernow.我妈妈正在看报纸。（现在进行时）Exercises:用所给动词的适当形式填空.•1.He___(like)watchingTV.Butnowhe_________(notwatch)TV.He________(read)abook.•2.Look!Thechildren____________(swim)intheriver.•3.We_______(clean)ourclassroomeveryday.•4.---DoesJim____(run)everyday?---Yes,he_____.---____he______(run)now?---No,he____.He________(Play)football.likesisn’twatchingisreadingareswimmingcleanrundoesIsrunningisn’tisplaying•5.We____(do)ourhomeworkeveryday.Nowwe________(do)ourhomeworkintheclassroom.•6.SometimesLiPing____(have)lunchathome.Butnowhe________(have)lunchatschool.•7.Sometimesthey_____(watch)TVafterschool.Butnowthey____________(notwatch)TV.They________(play)games.•8.Mysister_____(read)Englisheverymorning.Butnowshe_______(read)Chinese.•9.Helikes_______(help)people.•10.When___you___toworkeverymorning?doaredoinghasishavingwatcharen’twatchingareplayingreadsisreadinghelpingdogo•11.A:What___thegirl______(do)now?•B:She___________(clean)theroom.•A:_____sheoften______(clean)theroom?•B:Yes,she______(clean)theroomoften.•12.A:_____they_____(play)footballeveryday?•B:No,theydon’t.•A:_____they_______(play)itnow?•B:No,theyaren’t.•13.A:_____he____(have)supperatschool?•B:No,he__________(not,have)supperatschooleveryday?isdoingiscleaningDoescleancleansDoplayAreplayingDoeshavedoesn’thave时态转换练习:•1.ShedoestheshoppinginSunday.•She_________theshoppingnow.•2.Weplaybasketballeveryday.•We____________basketballnow.•3.Hehassomeorangesat7:00.•He_________someorangesnow.•4.Theydon’twashtheirclotheseveryday.•They____________theirclothesnow.•5.DoesAnnspeakChinese?•____Ann_______Chinesewiththemnow?isdoingareplayingishavingaren’twashingIsspeaking•6.What’sthewomandoingnow?•What_____thewoman____intheevening?•7.Look!Theboysarerunning.•Sometimestheboys_____.doesdorun