Unit+4一般现在时和一般过去时的用法及模拟练习 鲁教版英语七年级上册++

一般现在时讲解及练习1、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+名词每个，sometimes有时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.

TomorrowisTuesday.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）直接在动词词尾加-s.ask---asks

work---works

get---gets

stay---stays（2）以字母s,x,ch,sh或o结尾的动词，在词尾直接加-es.watch---watches

wish---wishes

fix---fixes

pass---passes（3）以“辅音字母加-y”结尾的动词，要先变y为i再加-es.try---tries

study---studiescry---cries

fly---fliesplay—plays2.不规则变化：be----is

are

have----hasdo---doesgo---goes

三、一般现在时的句子转换：（1）当句子中有be动词时，则把be动词提到主语的前面变成疑问句;在be动词后面加not变成否定句陈述句Sheisastudent.疑问句Issheastudent?

否定句Sheisnotastudent.当句子中即没有be动词，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。陈述句：Wegetupat7:00everymorning.疑问句Doyougetupat7:00everymorning?否定句→Wedon’tgetupat7:00everymorning.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.3.Heusually___________upat17:00.(get)4.She___________(live)inBeijing.5.Amy_________(be)herejustnow.6._______(be)thereafly

onthetablejustnow?7.Myfather__________(watch)TVeveryevening.8.Myfather_______________(make)toysthesedays.9．________Amy_________(read)Englisheveryday?10.ChenJiesometimes_________(go)totheparkwithhersister.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)storybook?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_________(listen)totheEnglishsongstwiceaday,16Tom____(go)toschoolfromMondaytoFriday.17.LiuTao_________(donot)likePE.18.Thechildoften_________(watch)TVintheevening.一般过去时的定义一般过去时表示过去某一时候或某一段时间所发生了的事情或存在的状态。常与过去时间yesterday,thedaybeforeyesterday，thismorning,justnow,一段时间+ago,lastnight/year/week,justnow,in+过去年代、月份一、动词过去式分规则变化和不规则变化两种形式，不规则变化通常需要逐个记忆，规则变化则遵循以下原则：(1)一般在动词后加-ed。如：play—played,look--lookedwatch--watched(2)在以字母e结尾的动词后，只加-d。如：like—liked,live--lived(3)在以“辅音字母+y”结尾的动词后，则改y为i，再加—ed。如：study—studied.cry--cried(4)辅元辅结尾的，双写最后辅音字母，再加-ed。如：plan—planned,drop--dropped,stop-stopped1．be动词在一般过去时中的变化：⑴am和is在一般过去时中变为was。（wasnot=wasn’t）⑵are在一般过去时中变为were。（werenot=weren’t）⑶带有was或were的句子，其否定、疑问的变化和is,am,are一样，即否定句在was或were后加not，一般疑问句把was或were放到句首。2．句中没有be动词的一般过去时的句子否定句：didn’t+动词原形，如：Jimdidn’tgohomeyesterday.一般疑问句：在句首加did，句子中的动词过去式变回原形。如：DidJimgohomeyesterday?特殊疑问句：⑴疑问词+did+主语+动词原形？如：WhatdidJimdoyesterday?⑵疑问词当主语时：疑问词+动词过去式？如：Whowenttohomeyesterday?5．不规则动词过去式：

过去时练习：写出下列动词的过去式is\am_________

fly_______

pick________

are________

drink_________play_______

go________

make________do_________

dance________worry________

ask_____

taste_________

eat__________draw________put______

throw________kick_________

pass_______

do________一、用be动词的适当形式填空。1.I______anEnglishteachernow.2.She_______happyyesterday.3.They_______gladtoseeeachotherlastmonth.4.HelenandNancy________goodfriends.5.Thelittledog_____twoyearsoldthisyear.6.Look,there________lotsofappleshere.7.There________adogonthechaironMonday.8.Today_____thesecondofJune.Yesterday______thefirstofJune.It_____Children’sDay.Allthestudents______veryhappy.三、用所给动词的适当形式填满空白。1.I______(watch)TVonSaturday.2.Herfather_______(read)abooklastnight.3.We_________tozooyesterday(go),butwe_____tothepark.(notgo)4.______you_______(visit)yourfriendslastweek?5.______he_______(fly)akiteonSunday?Yes,he______.6.GaoShan_______(feed)somecowslastmonth.7.I____________(eat)somebreadyesterday,butmymother______.(do)8.What_____she_____(find)inthegardenlastmorning?She____(find)abeautifulbutterfly.9.It____(be)Ben’sbirthdayla