新概念英语第一册lesson83-84课件PPT文件格式下载.pptx

1、Hello,Sam.Come in.,TOM：Hi,Sam.Were having lunch.Do you want to have lunch with us？SAM：No,thank you.Tom.Ive already had lunch.I had at half past twelve.,现在进行时,已经吃过了。现在完成时态,I have already had lunch.,CAROL：Have a cup of coffee then.SAM：Ive just had a cup,thank you.I had one after my lunch.,TOM Lets go

2、into the living room,Carol.We can have our coffee there.,动词+其他,CAROL：Excuse the mess,Sam.This rooms very untidy.Were packing our suitcases.Were going to leave tomorrow.Tom and I are going to have a holiday.,杂乱的,messy杂乱的形容词,Were leaving tomorrowIm coming soon.Shes going My father is arriving,leavecom

3、egoarrive可以代替一般将来时,Were going to leave tomorrow.=Were leaving tomorrow.当动词是leave,go,come,arrive等时，可以用现在进行时表将来。Im coming.他今天晚上就到Hes arriving tonight.,SAM：Arent you lucky！TOM：When are you going to have a holiday,Sam？I dont know.Ive already had my holiday this year.CAROL：Where did you go？I stayed at ho

4、me！,现在完成时的构成,主菜单,上一页,下一页,have（has）+过去分词,present（now）,future,past,do my homework,现在完成时的基本句型：,肯定式：主语+助动词have/has+动词的过去分词.疑问式：助动词Have/Has+主语+动词的过去分词?否定式:主语+助动词have/has+not+动词的过去分词.,英语小贴士,already&yetalready“已经”，用于肯定、yet 用于疑问、否定句的句尾，含有“仍然”，“还没有”之意。Have you done it yet?-Yes,I have already done it.Havent y

5、ou done it yet?-No,I havet done it yet.,Lesson 84 Have you had?,时态造句,我每天做作业。我昨天做作业了。我的作业已经做完了。我还没有做完作业。你已经做完作业了吗？1-5句中的“我”换成“她”。,I do my homework every day.,I did my homework yesterday.,Ive already done my homework.,I havent done my homework yet.,Have you done your homework yet?,时态造句,她每天做作业。她昨天做作业了。

6、她的作业已经做完了。她还没有做完作业。她已经做完作业了吗？,she does her homework every day.,She did her homework yesterday.,She has already done her homework.,she hasnt done her homework.,Has she done her homework yet?,动 词 填 空：1._ you _（clean）the room?Yes,we _（do）that already.When _ you _（do）it?We _（do）it an hour ago.2._ he _（s

7、ee）this film yet?Yes.When _ he _（see）it?He _ it last week.,Have,cleaned,have done,did,do,did,Has,seen,did,see,saw,下一页,上一页,主菜单,Pattern Drill,Ive/Shes already had some lettuce.Ive/Shes just（already）had some lettuce.,Have you/Has she had any vegetables or fruit?-I havent/She hasnt had any vegetables.Iv

8、e/Shes just（already）had some fruit.,Have you had any？Yes,I have./No,I havent.,Lesson 83-84 学习重点现在完成时的含义、结构和用法。现在分词的变化。一般陈述和疑问句。,Homework,Recite the new words Listen to the tape and Recite Lesson 83Do the exercise book,“Let”祈使句的否定句,Lets go to the park.Let her eat some rice.Let Peter drink some milk a

9、nd juice.,现身说“法”,现在完成时（）什么时候用现在完成时？表示在说话之前已经完成，而后果或影响至今仍存在的动作。I have opened the door of the building.已经开始的动作依然在持续，且有可能持续下去。I have studied English since 1975.现在完成时的谓语动词构成？have/has+动词的过去分词,现身说“法”,Let祈使句句意中含有第一或第三人称作主语；以let开头，解释为“让”；表示“建议”、“邀请”或者“愿望”。,Retell the story.,现在完成时VS一般过去时,一般现在时&一般过去时&现在完成时&现在

10、进行时,一般过去时：表示在过去的同某个时间做过的事情或存在的状态。I did my homework last night.现在完成时：动作发生在过去，但对现在造成了影响或结果。I have already done my homework.she has just watched TV.谓语动词结构：时态是通过动词的变化来体现的。S人物+was/were S+V动词-（e）dS+have/has+p.p.动词的过去分词,过去分词的构成？如果一个动词的过去式是规则变化的，那么它的过去分词形式与过去式形式相同。look-looked-looked study-studied-studied如果一个动词的过去式是不规则变化的，那么它的过去分词形式也是不规则的，没有任何规律可循。要加强记忆！take-took-taken buy-bought-bought,