新外研社四年级英语下册.pptx

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1、Lets play a game:I do and you say.我做你说我做你说.第1页/共26页 today yesterday tomorrowPlay-say-may-way-day第2页/共26页There are five people in this dialogue.Who are they?On Monday Amy phoned grandma.Listen and watch,Then find out:第3页/共26页第4页/共26页There are five people in this dialogue.Who are they?On Monday Amy ph

2、oned grandma.Listen and watch,Then find out:Amy,Grandma,Sam,Dad and Tom.第5页/共26页 watch and find:1.What did Amy do yesterday?She cooked noodles,helped Mum and washed clothes.2.What did Sam do yesterday?He didnt helped Mum,he played on the computer and watched TV.3.What did Tom do yesterday?He helped

3、mum too.第6页/共26页第7页/共26页Didyoucookmeatyesterday?Didyoulistentomusicyesterday?Didyoucook fish yesterday?Didyoutalktosomefriendsyesterday?Didyouwalkintheparkyesterday?Yes,IdidNo,Ididnt.No,Ididnt.Yes,IdidYes,Idid第8页/共26页LetschantCookcookcookDidyoucookmeatyesterday?No,no,Ididnt.CookcookcookDidyoucookfis

4、hyesterday?yes,yes,Idid.第9页/共26页原形过去式原形过去式 /t/watch watched cook cooked walk walked talk talked help helped /d/listen listened rain rained play played第10页/共26页小结：小结：ed，ed小尾巴，动词后面跟着它，如果动作已发生，千万不要忘了它。playYesterday昨天昨天Today今天今天played第11页/共26页游戏：心有灵犀每位同学把自己昨天干的事情画或写到一张纸上。然后其他同学用Didyou.来猜。被猜的同学用Yes，Idid。

5、No,Ididnt。猜中的同学和你心有灵犀，是你最好的朋友第12页/共26页游戏：游戏：猜一猜老师昨天干猜一猜老师昨天干 了什么？了什么？老师画，同学们猜，看谁猜得中。要用Didyou（动词原形）.？句型呀！第13页/共26页第14页/共26页Samplayedbasketballyesterday.第15页/共26页Heplayedonthecomputer第16页/共26页Heplayedfootball.第17页/共26页LinglingwatchedTVyesterday第18页/共26页我来给图画配音：我来给图画配音：第19页/共26页模仿秀：模仿秀：我们分别模仿我们分别模仿Amy和

6、和Grandma,看看哪个小组模仿的最像哪个小组模仿的最像。第20页/共26页1一般过去时表示过去某个时间发生的动作或存在的状态，常和表示过去的时间状语连用。一般过去时也表示过去经常或反复发生的动作感谢。2Be动词在一般过去时中的变化：am和is在一般过去时中变为was。（wasnot=wasnt）are在一般过去时中变为were。（werenot=werent）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。语法：一般过去时语法：一般过去时第21页/共26页3句中没有be动词的一般过去时的句子

7、否定句：didnt+动词原形，如：Jimdidntgohomeyesterday.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：疑问词+did+主语+动词原形？如：WhatdidJimdoyesterday?第22页/共26页（2）疑问词当主语时：疑问词+动词过去式？如：Whowenttohomeyesterday?动词过去式变化规则：1一般在动词末尾加-ed，如：pull-pulled,cook-cooked2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，

8、再加-ed，如：stop-stopped4以“辅音字母+y”结尾的，变y为i，再加-ed，如：study-studied5不规则动词过去式：第23页/共26页am,is-was,are-were,do-did,see-saw,say-said,give-gave,get-got,go-went,come-came,have-had,eat-ate,take-took,run-ran,sing-sang,put-put,make-made,read-read,write-wrote,draw-drew,drink-drank,fly-flew,ride-rode,speak-spoke,sweep-swept,swim-swam,sit-sat第24页/共26页过去时练习过去时练习:写出下列动词的过去式写出下列动词的过去式see_fly_plant_are_drink_play_go_make_does_dance_worry_ask_taste_eat_draw_put_throw_pass_do_sawflewplantweredrinkedplayedwentmakeddoseddancedworriedaskedtastedatedrewputthrewpasseddid第25页/共26页感谢您的观看！第26页/共26页