小学英语一般过去时讲解及练习.doc

一般过去时讲解及练习一、概念：表示在过去某个时间里所发生的动作或存在的状态。通常在句子里找到表示过去时间的词或词组。如：yesterday，yesterdaymorning/evening，thedaybeforeyesterday（前天），lastnight/week/month/year，justnow（刚才），twodaysago，aweekago，in1990等。如：Iwenttobedatelevenlastnight.昨晚我11：00睡觉。二、动词一般过去时变化规则1．一般在动词末尾加-ed，如：pull-pulled,cook-cooked,play-played2．结尾是e加d，如：taste-tasted3．末尾只有一个元音字母和一个辅音字母的重读闭音节，应双写末尾的辅音字母，再加-ed，如：stop-stopped，plan-planned,prefer-preferred4．以“辅音字母+y”结尾的，变y为i，再加-ed，如：study-studied5．小学阶段不规则动词一般过去时：am/is→wasare→werehave/has→haddo→didsing→sangsit→satgive→gaverun→rancome→cameeat→atetake→tookwrite→wroteride→rodedrive→drovespeak→spokeget→gotgo→wentmake→madeknow→knewsee→sawteach→taughtbuy→boughtread→readput→puthurt→hurtcut→cutfall→fellsay→said三、句式变化(1)Be动词在一般过去时中的变化①am和is在一般过去时中变为was。（wasnot=wasn’t）②are在一般过去时中变为were。（werenot=weren’t）③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调到句首。(2)句中没有be动词的一般过去时的句子Jimdoeshomeworkeveryday.Jimdidhomeworkyesterday.否定句：Jimdidhomeworkyesterday.Jimdidn'tdohomeworkyesterday.(didn't+动词原形)一般疑问句：Jimdidhomeworkyesterday.DidJimdohomeworkyesterday?(在句首加did，句子中的动词过去式变回原形)特殊疑问句：Jimdidhomeworkyesterday.DidJimdohomeworkyesterday?WhatdidJimdoyesterday?(疑问词+一般疑问句？)一般过去式练习题：一、写出下列动词的过去式或动词原形。1.go_____2.is_____3.buy_____4.swim_____5.have______6.watched________7.ate_____8.got_____9.lived______10.saw_____11.spend_____12.talk______13.do_____14.teach_______15.win______16.like_______17.write_______18.cry______19.study_____20.ask_______二、用单词的适当形式填空。1.________you________(water)theflowersyesterday.2.SuHai_________(go)forawalklastSunday.3.Mikedidn’t________(finish)hishomeworkyesterday.4.I_______(pick)applesonthetreelastmonth.5.I_______(is)tenyearsoldlastyear.Onthatday,I_______(blow)thecandlesout.6.There________(are)fivebooksonthedeskamomentago.7.They________(sweep)thefloorjustnow.8.I_________(meet)MissWhitethedaybeforeyesterday.10.I_______(wash)clotheslastweekend.11.Whatdidyouyoudoonyourholiday?I________(go)swimming.三、选择正确的答案。1.I____presentsformyparentsyesterday.A.buyedB.boughtC.bu