最新牛津译林版七年级英语下册Unit5-Grammar公开课课件.ppt

1、agothe day before yesterdaycentimetredodoadv.以前以前前天前天n.(=cm)厘米，公分厘米，公分 centimetern.渡渡鸟渡渡鸟New words and expression1.One Sunday morning,Millie and Amy _ to Sunshine Park.As usual,they _ down under a tree.2.Suddenly,they _ a whisper from the bushes behind the tree.They _ around but _ nothing.3.They _ t

2、he park quickly.4.Later that day,they _ the little cat to the animal centre.wentsatheardturnedsawlefttook1.We use the simple past tense to talk about things in the past.一、什么情况下使用一般过去时一、什么情况下使用一般过去时?看书上个例句看书上个例句用用 法法1.表示过去某个时间发生的动作或存在表示过去某个时间发生的动作或存在 的状态。的状态。He was here yesterday.I got up at six thir

3、ty yesterday morning.My father was at work yesterday afternoon.Did you have a good time last summer?2.表示过去经常或反复发生的动作表示过去经常或反复发生的动作。My father often went to work by bus last year.When I was a child,I often listened to music.一般过去时的时间状语一般过去时的时间状语:last Tuesday/week/monthyesterday(morning/afternoon)this m

4、orningago(2 days ago/5 weeks ago)the day before yesterday前天前天in+过去的年份过去的年份（in1860/in 1978）just now=right now=a moment ago刚才刚才今天上午今天上午动词过去式动词过去式的构成的构成规则动词规则动词不规则动词不规则动词构成构成读音读音规则动词过去式的构成规则动词过去式的构成构成规则构成规则例词例词2.结尾是结尾是e的动词的动词 加加-d1.一般在动词原形一般在动词原形 末尾加末尾加-edlive lived hope hoped use usedlook looked play

5、played start started规则动词过去式的构成规则动词过去式的构成构成规则构成规则例词例词3.末尾是末尾是辅元辅的辅元辅的重读音节重读音节，双写这个辅，双写这个辅音字母音字母,再加再加-ed stop stoppedplan plannedchat chatted4.结尾是结尾是“辅音字母辅音字母+y”的动词的动词,先变先变“y”为为 “i”,再加再加-ed study studiedcarry carried提示提示:以元音字母以元音字母+y结尾的动词结尾的动词按第一条规则，即：按第一条规则，即：+ed,如如:stay stayed play-played清念清念/t/,元浊元

6、浊/d/;/t/d/之后念之后念/id/规则动词规则动词+-ed的读音的读音说明：说明：1.清念清念/t/，即，即 ed 在清辅音后面念在清辅音后面念 /t/，例：例：finished helped passed cooked 2.元浊元浊/d/，即，即 ed 在元音，浊辅音后在元音，浊辅音后 面念面念/d/，例：例：borrowed enjoyed called moved 说明：说明：3./t/d/之后念之后念/id/，即，即 ed 在在/t/d/音后面念音后面念/id/，例：例：wanted shouted needed countedwant talk like worry try s

7、top wanted talked liked worried tried stopped 写出下列动词的过去式。写出下列动词的过去式。1 绝大多数动词绝大多数动词+edwalkwalked2以以e结尾的动词结尾的动词+dlivelived3以辅音字母以辅音字母+y结结尾的动词尾的动词变变y为为iedcrycried4以一个元音字母以一个元音字母+一个辅音字母一个辅音字母结尾的短动词结尾的短动词双写末双写末尾的辅尾的辅音字母音字母+edstopstopped二、规则动词过去式的构成方法二、规则动词过去式的构成方法 三、不规则动词的过去式不是加三、不规则动词的过去式不是加ed 构成的构成的,需要

8、我们记住它们。不规则需要我们记住它们。不规则动词的过去式归纳起来有这样几种动词的过去式归纳起来有这样几种类型类型(见下表见下表)：1与原形一样与原形一样,没有没有变化变化cost-cost put-put 2改变了元音改变了元音write-wrote know-knew3改变了辅音改变了辅音make-made spend-spent4元音和辅音都变化元音和辅音都变化了了leave-left teach-taught is -was are -were am-was have-hadturn to P106 to get more不规则动词的过去式不规则动词的过去式1.start _2.love

9、 _3.play _4.plan _9.leave _10.tell _11.stand _12.bring _5.reply _6.say _7.meet _8.hear _startedplayedlovedplannedsaidrepliedleftmetstoodtoldheardbroughtFinish Part A on page 62.This morning,we _(go)to the Fun World Museum.When we _(get)to the museum,there _(be)a lot of people there.We _(spend)three

10、hours in the museum.I _(take)a lot of photos.Some of us _(buy)cards of the animals there.We _(come)back to school at 1 p.m.We _(have)a great time!wentwerespenttookboughtcamehadgotFinish Part B on page 62.Millie:We _(go)to the Fun World Museum the day before yesterday,Daniel.It _ (be)so interesting!D

11、aniel:Really?Tell me all about it.Millie:OK.We _(see)a small monkey,only 11 centimetres tall.Daniel:Thats amazing!What else?Millie:We also _(learn)about some strange birds like dodos.They _(live)on the earth a long time ago.Daniel:Thats cool!wentsawwaslearntlivedFinish Part C on page 62.动词一般过去时，表示过去

12、发生的事；动词一般过去时，表示过去发生的事；be用用was或用或用were,have,has变变had；谓语动词过去式，过去时间做标志；谓语动词过去式，过去时间做标志；一般动词加一般动词加-ed，若是特殊得硬记。，若是特殊得硬记。否定句很简单，主语之后否定句很简单，主语之后didnt添；添；疑问句也不难，疑问句也不难，did放在主语前；放在主语前；如果谓语之前有如果谓语之前有did，谓语动词需还原；，谓语动词需还原；动词若是动词若是was,were,否定就把否定就把not添。添。1)肯定句肯定句 主语主语+谓语动词过去式谓语动词过去式 He heard a whisper.They went

13、to the park again last Sunday.四、谓语动词为实义动词的一般过四、谓语动词为实义动词的一般过去时的句子结构去时的句子结构2)否定句否定句 主语主语+didnt+谓语动原形谓语动原形 I didnt go to the park yesterday morning.He didnt hear a whisper.They didnt find anything in the bushes.3)一般疑问句一般疑问句 Did+主语主语+谓语动原形谓语动原形?Yes,代词代词+did./No,代词代词+didnt.Did you go to the park yesterd

14、ay morning?Yes,I did.Did he hear a whisper?No,he didnt.动词一般过去时，表示过去发生的事；动词一般过去时，表示过去发生的事；be用用was或用或用were,have,has变变had；谓语动词过去式，过去时间做标志；谓语动词过去式，过去时间做标志；一般动词加一般动词加-ed，若是特殊得硬记。，若是特殊得硬记。否定句很简单，主语之后否定句很简单，主语之后didnt添；添；疑问句也不难，疑问句也不难，did放在主语前；放在主语前；如果谓语之前有如果谓语之前有did，谓语动词需还原；，谓语动词需还原；动词若是动词若是was,were,否定就把否定就把not添。添。