英语人教版八年级下册Unit8 sectionA Grammar Focus.ppt

《英语人教版八年级下册Unit8 sectionA Grammar Focus.ppt》由会员分享，可在线阅读，更多相关《英语人教版八年级下册Unit8 sectionA Grammar Focus.ppt（20页珍藏版）》请在淘文阁 - 分享文档赚钱的网站上搜索。

1、Unit8HaveyoureadTreasureIslandyet?SectionA3(GrammarFocus4a-4c)1.掌握新单词:fiction小说sciencefiction科幻小说technology科技；工艺。French法语2.了解现在完成时各种句式并关注already和yet在现在完成时的句中的使用。3.能对一般现在时，一般过去时，一般将来时和现在完成时进行综合利用。4.记住部分动词的过去分词：read,decide,find,bring,cut,teach,be,run,come.Grammar FocusHave you read Little Women yet?Ye

2、s,I have./No,I havent.Has Tina read Treasure Island yet?Yes,she has.She thinks its fantastic.Have you decided which book to write about yet?Yes,I have.Ive already finished reading it.It was really good.现在完成时：现在完成时：表示过去发生或已经完成的某一动作对现在造表示过去发生或已经完成的某一动作对现在造成的影响或结果，或从过去开始一直延续到现在的成的影响或结果，或从过去开始一直延续到现在的动作

3、或保存的状态。动作或保存的状态。结构：结构：主语主语+have/has+动词的过去分词动词的过去分词一般疑问句一般疑问句：have/has?Yes,I have.No,I havent.Yes,she has.No,she hasnt.1.现在完成时动词构成现在完成时动词构成have/has+v 过去分词过去分词助动词助动词否定否定haventhasnt疑问疑问Have you?Has he?常与下列时间状语连用：常与下列时间状语连用：just,already,yet,ever,never,before,several times现在完成在完成时1.过去发生的动作对现在造成的影响或结果。过去发

4、生的动作对现在造成的影响或结果。和和already，never,ever,just,before,yet等状语连等状语连用。用。2.过去已经开始，持续到现在的动作或状态，过去已经开始，持续到现在的动作或状态，常与常与for或或since引起的一段时间状语连用。引起的一段时间状语连用。动词构成：动词构成：have/has+v过去分词过去分词have breakfastI have just had my breakfast.(现在我不饿现在我不饿)Im not hungry nowmoved herein 2004I still live hereI have lived here for th

5、ree years.I have lived here since 2004/three years ago.nowpast (1).for+表示表示一段一段时间的短语时间的短语 (2).since+表示表示过去时间点过去时间点的词语的词语 (3).since+表示过去时间的时间状语表示过去时间的时间状语从句从句eg.I have been a teacher _ a year.He has been at this school _ 1992.We have learned 1,000 English words _ we came to this school.forsincesince现

6、在完成时句中常见的时间状语现在完成时句中常见的时间状语A.表示从过去一直持续到现在表示从过去一直持续到现在,不能是具体不能是具体的过去时间。的过去时间。everjustalreadyyete.g.Have you _been to Japan?I have _ finished my homework.I have finished my homework _.I havent finished my homework _.B.just,already,yet,before/ever,never有此有此类副词时类副词时,常强调动作完成常强调动作完成,不强调动作的持续不强调动作的持续.alrea

7、dy“已经已经”;yet “仍然仍然,还还”这两个副词常常用于完成时态这两个副词常常用于完成时态,其中其中already 常用于肯定句常用于肯定句,yet常用于否定句和疑问句中。常用于否定句和疑问句中。如如:Jim has already finished his work.Jim已经把他的工作做完了。已经把他的工作做完了。Mother hasnt come home yet.妈妈还没回来。妈妈还没回来。Havent you read The Call of the Wild yet?你还没读过你还没读过野性的呼唤野性的呼唤吗？吗？She has already finished her wo

8、rk.她已经把工作做完了。她已经把工作做完了。I havent read the story yet.我还没读过这个故事。我还没读过这个故事。Have you met him before?你从前曾见过他吗？你从前曾见过他吗？Lily has always been a good student.Lily一直是个好学生。一直是个好学生。比较：比较：I have seen him this morning.我上午看见他了。我上午看见他了。(说话时在上午说话时在上午)I saw him this morning.今天上午我遇见了他。今天上午我遇见了他。(说话时可能是下午或者晚上说话时可能是下午或者

9、晚上)It has been cold this winter.今天冬天一直很冷。今天冬天一直很冷。(说话时仍是冬天说话时仍是冬天)现在完成时：现在完成时：表示过去发生或已经完成的某一动作表示过去发生或已经完成的某一动作对现在造成的影响或结果，或从过去开始一直延续到对现在造成的影响或结果，或从过去开始一直延续到现在的动作或保存的状态，强调的是现在的情况，现在的动作或保存的状态，强调的是现在的情况，不不能和表示过去的时间状语连用（如：能和表示过去的时间状语连用（如：in 1990in 1990，last last Sunday Sunday 等）。等）。一般过去时：一般过去时：一般过去时只表示过

10、去的动作或状态，一般过去时只表示过去的动作或状态，和现在不发生关系（即动作或状态在现在已经结束），和现在不发生关系（即动作或状态在现在已经结束），它可以和表示过去的时间状语连用。它可以和表示过去的时间状语连用。现在完成时现在完成时与一般过去时的区别：与一般过去时的区别：have/has+V过去分词过去分词1.A:Would you like something to drink?B:No,thanks._ (just/drink some tea)2.A:I heard you lost your key._?(find)B:No,not yet.3.A:Do you know when To

11、m is leaving?B:_.(already/leave)4a.Use the words in brackets to complete the conversations.Ive just drunk some teaHave you found itHe has already left A:When _?(leave)B:This morning.4.A:Is your sister going to the movies with us tonight?B:No._.(already/see the film)5.A:What do your parents think abo

12、ut our plan?B:I _.(not/tell them/yet)did he leaveShe has already seen the filmhave not told them yetSally_(love)reading.In the morning,she reads the newspaper and in the evening she reads books.She _ already _(read)more than 100 different books!Her favorite kind of books is science fiction.She is in

13、terested in science and technology and loves to imagine4b.Fill in the blanks with the correct forms of the words in brackets.loveshas readwhat the world _(be)like in 50 years.She _(finish)reading a book about robots last week and _(write)a book report about it next week for her French class.Every ti

14、me she is in the library,Sally looks at the many books she_(not read)yet and she cant wait to read them!will befinishedwill writehas not read4c.Complete the chart with information about you and a friend.A:What books have you already read?B:Ive already read Tom Sawyer and Harry Potter.A:What do you t

15、hink of them?B:Well,I think Harry Potter was exciting,but Tom Sawyer was a bit boring.YouYour friendCommentsBooks I have already readMovies I have already seen Songs I have already heard()【2013广西贵港】DoyouknowthemovieLost in Thailand?Yes.I_ittwice.Itsfunny.A.sawB.seeC.haveseenD.willsee()【2013黑龙江牡丹江】Lunch?No,thanks.I_.A.willeatB.ameatingC.haveeaten()【2013湖北黄冈】WhereisTom?Wecantfindhimanywhere.Perhapshe_home.A.hascomeB.isgoingC.wentD.wasgoing中考链接中考链接CCAHomework（1）背诵grammar，并且根据语法模仿造5个现在完成时态的句子。（2）根据今天学习的内容请同学们预习下节课的知识点。Thankyou!