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1、初中八种英语时态精讲精练一般现在时一、用法1．表示经常发生的动作、行为或存在的状态。常用的时间状语有：often,usually,always,everyday/week/month/year,sometimes,seldom，onceaweek,twiceaweek,onSundays等。Igotoschooleveryday.2．表示主语的身份或特征。Hisfatherisadoctor.Tomistall.3．表示一种客观事实或普遍真理。Theearthisround.Thesunisbi
2、ggerthanthemoon.4．在条件状态从句和时间状语从句中，用一般现在时表示将来。 Ifyoudon’tgosoon,you’llbelate.如果你不快去的话，你就要迟到了。二、构成 动词一般现在时，除主语为单数第三人称以外，谓语动词一律用原形，若主语为第三人称单数，则谓语动词的词尾应发生变化（加-s或-es）。1．在动词原形后加-srun→runs2．以ch,sh,s,o,x结尾的动词后加-esguesses,fixes,teaches,washes,goes3．以辅音字母+y结
3、尾的动词，先将y变为i，再加-estry→tries4．以元音字母+y结尾的动词后加-sstay→stays5.have-has三、一般现在时的句型变化。1.肯定句（1）主语+am/is/are+表语Theyarenewstudents.Iamtall.HeisfromJapan.amisare用法口诀：I用am，you用are，is连着他、她、它；单数用is,复数一律都用are。（2）a.主语+实义动词+其它IreadEnglisheverymorning.b.单三人称主语+实义动词单三人称+
4、其它Heusuallygoestoschoolbybike. 2.否定句（1）主语+am/is/are+not+表语Sheisnotanurse.（2）a.主语+don’t+动词原形+其它如：Idon’tplaysoccerafterschool. b.单三人称主语+doesn’t+动词原形+其它Hedoesn’tgototheparkafterschool.3.一般疑问句（1）Am/Is/Are+主语+表语？Isyourmotherateacher? （2）a.Do+主语+动词原形
5、+其它？DoyouspeakEnglish? b.Does+单三人称主语+动词原形+其它？Doesyourbrotherhaveawidemouth?4.特殊疑问句特殊疑问词+一般疑问句？Whattimedoesyourmothergetupeveryday?专项练习题一、写出下列动词的第三人称单数形式1.study________2.play________3.watch_____4.wash_______5.have_______6.ride_______7.take_______8.wo
6、rry_______9.help_______10.say________11.put________12.teach________13.fly________14.eat________15.go_______16.guess______17.read_______18.do_______19.call________20.cry________1-5studies,plays,watches,washes,has6-10.rides,takes,worries,helps,says11-1
7、5puts,teaches,flies,eats,goes16-20guesses,reads,does,calls,cries二、用所给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
8、.What____theyoften____(do)onSaturdays?7._______yourparents_______(read)newspaperseveryday?8.Thegirl_______(teach)usEnglishonSundays.9.SheandI________(take)awalktogethereveryevening.10.Themoon________(travel)roundtheearth.11.Itusually________(take)mem
