一般现在时讲解与练习VIP免费

一般现在时一、定义与讲解一般现在时：表示经常性的事情，经常性的动作或一般性事实。时间状语：often经常，usually通常，always总是，every每个，sometimes有时，at…在几点钟只有在第三人称单数用动词的“三单变化”，其他用动词的原形。三单变化：1.多数在动词后＋splay—playslike—likes（1）直接在动词词尾加-s.ask---askswork---worksget---getsstay---stays（2）以字母s,x,ch,sh或o结尾的动词，在词尾直接加-es.watch---watcheswish---wishesfix---fixesdo---doesgo---goespass---passes（3）以“辅音字母加-y”结尾的动词，要先变y为i再加-es.try---triesstudy---studiescry---criesfly---flies2.不规则变化：be----isarehave----has二、一般现在时用法1.表示经常性，习惯性,永久性的动作或存在的状态.通常与副词sometimes,often,usually,always,everyday(year,month),once(twice,threetimes)aday,等时间状语连用。Theyusuallygotoschoolbybike.Itakethemedicinethreetimesaday.Shehelpshermotheronceaweek.Mary’sfatherisapoliceman.Thereare50studentsinmyclass.2.表示客观真理，科学原理，自然现象，等客观事实或格言，谚语等。Thesunrisesintheeastandsetsinthewesteveryday.ThemanwhohasneverbeentotheGreatWallisnotarealman.TomorrowisTuesday.三、一般现在时的句子转换：（1）当句子中有be动词或情态动词时，则把be动词或情态动词(can,could等等)提到主语的前面变成疑问句;在be动词或情态动词后面加not变成否定句.例：①陈述句：Sheisastudent.疑问句→Issheastudent?否定句→Sheisnotastudent.②陈述句：Icanswim.疑问句→Canyouswim否定句→Icannotswim.（2）当句子中即没有be动词，也没有情态动词时，则在主语前加助动词do(you,以及复数),does（单数she,he,it）变成问句；在主语后谓语动词前加助动词don’t（I,you,以及复数),doesn’t（单数she,he,it）变成否定句，助动词后的动词要变成动词原形。例：①陈述句：Wegetupat7:00everymorning.疑问句→Doyougetupat7:00everymorning?否定句→Wedon’tgetupat7:00everymorning.②陈述句：Shehasalittlebrother.疑问句→Doesshehavealittlebrother?否定句→Shedoesn’thavealittlebrother.（一）．用动词的适当形式填空1.She_________(go)toschoolatseveno’clock.2.It’s6o’clock.Theyare_________(eat)supper.3.Heusually___________upat17:00.(get)4.She___________(live)inBeijing.5.Amy_________(be)herejustnow.6._______(be)thereaflyonthetablejustnow?7.Myfather__________(watch)TVeveryevening.8.Myfather_______________(make)toysthesedays.9．?________Amy_________(read)Englisheveryday10.ChenJiesometimes_________(go)totheparkwithhersister.（二）.选择填空1．Iwant____homeworknow.A.doingB.todoC.todomyD.domy2．It'stime______.A.gotoschoolB.playgamesC.togohomeD.todomyhomeworks3．______goandhelpher.A.Let'smeB.Let'susC.Let'sD.Let'sto4．Dotheyhaveanewcar?Yes,_____.A.theyareB.theyhaveC.theydon'tD.theydo5．Heoften_________supperat6:00intheevening.A.haveB.hasc.ishavingD.iseating6.We_____________anyChineseclassesonFriday.A.arehavingB.aren’thavingC.don’thaveD.arehave（三）、用括号内动词的适当形式填空。1.Heoften_________(have)dinnerathome.2.DanielandTommy_________(be)inClassOne.3.We_________(notwatch)TVonMonday.4.Nick_________(notgo)tothezooonSunday.5.they_________(like)theWorldCup?6.Whattheyoften_________(do)onSaturdays?7.yourparents_________(read)newspaperseveryday?8.Thegirl_________(teach)usEnglishonSundays.9.SheandI_________(take)awalktogethereveryevening.10.There_________(be)somewaterinthebottle.11.Mike_________(like)cooking.12.They_________(have)thesamehobby.13.Myaunt_________(look)afterherbabycarefully.14.Youalways_________(do)yourhomeworkwell.15.I_________(be)ill.I’mstayinginbed.16.She_______...