Unit 2 A Visit to the Zoo Part B--一般过去时讲解和练习.ppt

Unit2AVisittotheZooPartA一般过去时练习 一般过去时 1 用来描述在过去某个时候发生的动作或存在的状态 例 Hewashereyesterday Igotupatsixthirtyyesterdaymorning Myfatherwasatworkyesterdayafternoon Didyouhaveagoodtimelastsummer 2 它也可以用来表示在过去某段时间里经常发生的习惯性动作 Myfatheroftenwenttoworkbybuslastyear WhenIwasachild Ioftenlistenedtomusic 一般过去时谓语动词的变化 1 be动词变成was或were2 实意动词变成过去式 1 一般情况下 动词词尾加 ed 如 work workedplay playedwanted wanted 2 以不发音的 e结尾动词 动词词尾加 d 如 live livedmove movedtaste tastedhope hoped 3 以辅音字母 y结尾的动词 把 y变为 i再加 ed 如 study studiedcopy copiedcry criedcarry carried 4 以一个辅音字母结尾的重读闭音节动词 双写词尾辅音字母 再加 ed 如 stop stoppedtrip tripped 清对清 浊对浊 元音后面还是浊 t d 后面发 id 其余后面常发浊 1 在轻辅音 p k f s 等后加ed读轻辅音 t askedcookedworkedlookedtalkedpickedhelpedsurfed2 在浊辅音 b g v z m 等及元音后加ed读浊辅音 d livedlistenedclosedopenedwateredplayed3 在 t d 之后读 Id add addedneed neededshout shoutedwait waitedwant wanted 目前我们学过的在句子中做谓语的动词有两类 1 be动词 am is wasare were2 实意动词 除了be动词以外 都是实意动词 我们平常用的那些动词 例如 eat look teach see hear等 助动词 do diddo有两个词性 一个是助动词 做助动词的时候没有词义 只是协助动词 一个是实意动词 表示 做 的意思 比如dohomework 否定句和疑问句 一般过去时句中谓语动词是be动词的时候 否定句在be动词 即 was或were 后加not 一般疑问句把was或were调到句首 例 Itwashotyesterday Itwasn thotyesterday Wasithotyesterday 一般过去时句中谓语动词是实意动词的时候 变成否定句和疑问句 都要借助于助动词did 否定句在助动词did后面加not 疑问句用did来提问 注意 只要出现助动词 后面动词一定要还原 例 SheplayedcomputerlastSunday Shedidn tplaycomputerlastSunday DidsheplaycomputerlastSunday 1 look2 live3 stop4 carry5 hope6 trip7 call8 finish9 want10 are11 go12 have13 do14 gete16 say17 see18 put19 eat20 take21 read 动词过去式转换练习 将下列动词变为过去式 1 looklooked2 livelived3 stopstopped4 carrycarried5 hopehoped6 triptripped7 callcalled8 finishfinished9 wantwanted10 arewere11 gowent12 havehad13 dodid14 getgotecame16 saysaid17 seesaw18 putput19 eatate20 taketook21 readread 动词过去式转换练习 将下列动词变为过去式 1 Itwerehotlastsummer 2 Thechildrenwashappy 3 Shewereateachertenyearsago 4 Heweren tadriver5yearsago 5 Theywashappylastnight Itwashotlastsummer Thechildrenwerehappy Hewasn tadriver5yearsago Shewasateachertenyearsago Theywerehappylastnight was were练习 1 Lucydidn twenttoschoollastweek 2 Simondidn tdoeshishomework 3 HarryandTimdidn thastoys 4 Didhedoeshishomeworkyesterday 5 Didshehasabook Lucydidn tgotoshoollastweek Simondidn tdohishomework HarryandTimdidn thavetoys Didhedohishomeworkyesterday Didshehaveabook 改正句子 改写句子 1 Lucydidherhomeworkathome 改否定句 Lucy herhomeworkathome 2 Hefoundsomemeatinthefridge 变一般疑问句 he meatinthefridge 3 Shehadabook 变一般疑问句 she abook 4 Therewassomeorangeinthecup 变一般疑问句 there orangeinthecup didn tdoDidfindanyDidhaveWasany 选择最佳答案 1 CanIamessageforher A withB takeC read 2 Tomfootballyesterdayafternoon A playB isplayingC playsD played 3 Weintheclassroomyesterdaymorning A aren tB weren tC isn tD wasn t 4 He sthephone A ofB inC on B D B C 5 youwatchTVlastnight A DoB DidC DoesD Can 6 Theboyusuallyupatseven A getB getsC