一般现在时讲解及练习

一般现在时讲解及练习来源：学而思英语网文章作者：学习2010-07-0314:27:14[标签：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_________(go)toschoolfromMondaytoFriday.17.LiuTao_________(do)notlikePE.18.Thechildoften_________(watch)TVintheevening.19.WangKaiandWangli_________(have)eightlessonsthisterm.20.－Whatday_________(be)ittoday?－It’sSaturday.1.Weoften___________(play)intheplaygound.2.He_________(get)upatsixo’clock.3.__________you_________(brush)yourteetheverymorning.4.What__________(do)heusually(do)afterschool?5.Danny__________(study)English,Chinese,Maths,ScienceandArtanschool.6.Mikesometimes__________(go)totheparkwithhissister.7.Ateightatnight,she__________(watch)TVwithhisparents.8.________Mike________(read)Englisheveryday?9.Howmanylessons_________yourclassmate________(have)onMonday?10.Whattime_________hismother_________(do)thehousework?1.Doyouoftenplayfootballafterschool?(肯定回答)2.Ihavemanybooks.（改为否定句）3.GaoShan’ssisterlikesplayingtabletennis（改为否定句）4.ShelivesinasmalltownnearNewYork.（改为一般疑问句）5.IwatchTVeveryday.（改为一般疑问句）6.Davidhasgotagoal.（改为一般疑问句）7.Wehavefourlessons.（否定句）8.Nancydoesn’trunfast（肯定句）9.Mydogrunsfast.否定句：一般疑问句：10.Mikehastwolettersforhim.一般疑问句：否定句：11.Iusually（playfootball）onFridayafternoon.否定句:一般疑问句:括号内容提问12.SuYangusuallywashessomeclothesonSaturday.否定句:一般疑问句:划线提问:13.Mingmingusuallywaterstheflowerseveryday否定句:一般疑问句:划线提问14.Tomdoeshishomeworkathome.否定句:一般疑问句:划线提问一般现在时的用法同学们，大家学习了一般现在时的用法，下面咱们来归纳一下：1．概念：一般现在时表示经常的、习惯性的动作或存在的状态。2．构成：一般现在时的构成主要有两种形式：（1）be型：句子的谓语动词只有be（am，is或are）：a．肯定句中，只出现be，如：Iamastudent．我是一名学生。b．否定句中，要在be后面加not，如：Sheisn'tateacher．她不是教师。c．一般疑问句，要将be放在句子开头（注意句首字母大写），句尾用问号，答语用Yes，主语+be．或No，主语+be+not．如：—Areyouready？—你准备好了吗？—Yes，Iam．—是的，我准备好了。（—No，I'mnot．—不，我没准备好。）（2）实义动词型：句中的谓语动词为实义动词（也叫行为动词）：a．肯定句中，只出现实义动词，如：Igetupinthemorning．我早晨起床。b．否定句中，要在实义动词前面加do（does）＋not，do（does）作助动词，本身无意义，常与not缩写成don't（doesn't），如：Idon'tlikevegetables．我不喜欢蔬菜。c．一般疑问句，要在句子开头加助动词Do（does），句尾用问号，简略答语用Yes，主语+do（does）．或No，主语+do（does）＋not．如：—Doyoulikeoranges？—你喜欢桔子吗？—Yes，Ido．—是的，我喜欢。（—No，Idon't．—不，我不喜欢。）11.1一般现在时的用法1)经常性或习惯性的动作，常与表示频腮度的时间状语连用。时间状语：every…,sometimes,at…,onSundayIleavehomeforschoolat7everymorning.2)客观真理，客观存在，科学事实。Theearthmovesaroundthesun.ShanghailiesintheeastofChina.3)表示格言或警句中。Pridegoesbeforeafall.骄者必败。注意：此用法如果出现在宾语