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一般现在时知识结构一般现在时构成用法常用时间1。主语+动词原形2。主语+动词的s/es1、表示经常、习惯性动作。Tomoftengoesswimming2、表示一种客观事实或真理。Themoonisround。always总是sometimes有时often/Usually经常everyday/week/year动词三人称单数形式的构成构成规则例词1、一般在动词原形末尾加–slooklooksstartstarts2、结尾是o,s,sh,ch,的动词加–esgo–goespass—passeswash–washeswatch–watches3、结尾是“辅音字母+y”的动词,先变“y”为“i”再加-esstudy–studiescarry–carriesplay--plays(元音字母+y的，则不变）一、主语不是三人称单数时肯定：主+动词原形Weoftengoswimming.否定:don’t+动原Weoftendon’tgoswimming.疑问:Do+主+动原…?Doyouoftengoswimming?Yes,wedo./No,wedon’t.1.Ioften____letterstomyfriend.(write)2.Theyusually___playingfootballafterschool.(like)3.Sometimeswe_________inPEclass.(notrun)4.When___you____upeveryday?(get)5.Thestudents_______lessonsonSunday.(nothave)二、主语为三人称单数时,肯定：主+动词的s/esTomoftengoesswimming.否定:doesn’t+动原Tomoftendoesn’tgoswimming.疑问:does+主+动原…?DoesTomoftengoswimming?Yes,hedoes./No,hedoesn’t.1.Jack___togotoschoolbybikeeveryday.(have)2.Mymotheroften___towork.(walk)3.SometimesLucy_________lunchathome.(nothave)4.Where___yoursister____?(work)1.He______Englishinaschool.I_____mathsinaschool.(teach)2.Ioften_______________TV.(watch)Mybrotheroften_________books.(read)3.He_____________classeseveryday.(have)4.They____________shoppingonMonday.(notgo)5.Tom__________abikeeveryday.(notride)6.Myparents_____________(notlike)fish.8.What_______you___?(do)9.Where______youruncle_______?(live)10.When________sheusually______up?(get)teachesteachwatchreadshasdon’tgodoesn’tridedon’tlikedododoesworkdoesget一般过去时知识结构一般过去时构成用法常用时间主语+动词的过去式1、表示过去某个时间发生的动作或存在的状态。2、表示过去经常或反复发生的动作。yesterdaylastnightin1990twodaysago规则动词过去式的构成构成规则例词1、一般在动词原形末尾加–edlooklookedplayplayedstartstarted2、结尾是e的动词加--dlivelivedhopehopeduseused3、末尾只有一个辅音字母的重读闭音节词，先双写这个辅音字母，再加—edstopstoppedplanplannedtriptripped4、结尾是“辅音字母+y”的动词，先变“y”为“i”再加—edstudystudiedcarrycarried用法1、表示过去某个时间发生的动作或存在的状态。Hewashereyesterday.Igotupatsixthirtyyesterdaymorning.Myfatherwasatworkyesterdayafternoon.Didyouhaveagoodtimelastsummer?2、表示过去经常或反复发生的动作。Myfatheroftenwenttoworkbybuslastyear.WhenIwasachild,Ioftenlistenedtomusic.构成肯定：主+动词过去式Wewentswimminglastweekend.否定:didn’t+动原Wedidn’tgoswimminglastweekend.疑问:Did+主+动原…?Didyougoswimminglastweekend?Yes,wedid./No,wedidn’t.1.I____letterstomyfriendlastnight.(write)2.They___playingfootballafterschoolayearago.(like)3.we_________PEclassyesterday.(nothave)4.Where___you____lastSunday?(go)5.They_______theGreatWallin1998.(visit)PRACTISE改写句子：1、Lucydidherhomeworkathome.（改否定句）Lucy______________herhomeworkathome.2、Hefoundsomemeatinthefridge.（变一般疑问句)______he___________meatinthefridge?3、Shestayedthereforaweek.（对划线部分提问）_________________she_____there?4、Therewassomeorangeinthecup.（变一般疑问句)_____there_____orangeinthecup?didn’tdoDidfindanyHowlongdidstayWasany