新目标英语人教版七年级上册一般现在时讲解和练习

一般现在时讲解一、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.（1）直接在动词词尾加-sask---askswork---works2）以字母s,x,ch,sh或o结尾的动词，在词尾直接加-eswatch---watcheswish---wishesfix---fixesdo---doesgo---goes（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.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.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一般现在时练习一、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.What_______theyoften_______(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.SuHaiandSuYang_______(have)eightlessonsthisterm.20.－Whatday_______(be)ittoday?－It’sSaturday.21Weoften___________(play)intheplayground.22.He_________(get)upatsixo'clock.23.________you__________(brush)yourteetheverymorning?24.What________(do)heusually________(do)afterschool?25.Danny____________(study)English,Chinese,math,scienceandartatschool.26.Mikesometimes__________(go)totheparkwithhissister.27.Ateightatnight,she____________(watch)TVwithherparents.）28.________Mike_________(read)Englisheveryday?29.Howmanylessons_________yourclassmate_________(have)onMonday?30.Whattime_________hismother_________(do)thehousework?三、按照要求改写句子1.DanielwatchesTVeveryevening.(改为否定句)___________________________________________________2.Idomyhomeworkeveryday.(改为一般疑问句，并作否定回答)___________________________________________________3.Shelikesmilk.(改为一般疑问句，并作肯定回答)___________________________________________________4.Wegotoschooleverymorning.(改为否定句)___________________________________________________5.HespeaksEnglishverywell.(改为否定句)___________________________________________________6.Iliketakingphotosinthepark.(对划线部分提问)___________________________________________________7.JohncomesfromCanada.(对划线部分提问)____________________________9.SimonandDaniellikegoingskating.(改为否定句___________________________________________________10.Doyouoftenplayfootballafterschool?(肯定回答)_______________11.Ihavemanybooks.（改为否定句）_________________________12.GaoShan'ssisterlikesplayingtabletennis.（改为否定句）___________________________________________________13.ShelivesinasmalltownnearNewYork.（改为一般疑问句）___________________________________________________14.IwatchTVeveryday.（改为一般疑问句）___________________________________________________15.Davidhasgotagoal.（改为一般疑问句）_________________________16.Wehavefourlessons.（改为否定句）____________________________17.Nancydoesn'trunfast.（改为肯定句）_________________________19.Mikehastwolettersforhim.一般疑问句：______________________________否定句：_______________________20.Mingmingusuallywaterstheflowerseveryday.否定句:______________________________一般疑问句:____________________________划线提问____________________________