1、 Have you read Treasure Island yet?Section APeriod ThreeWatch the video and pay attention to the underlined and circled parts.A:They are building a house next door to us.B:Havent they finished yet?A:No,they havent finished the roof yet.Oh,yes.Theyve already built the walls.1.What are the meanings of
2、“yet”and“already”?2.In what situation do we use them?Observe and learn1.I havent read this book yet.2.Sandy,have you finished the reader yet?3.Ive already read it.4.Ive just finished Oliver Twist and 5.Have you heard of them yet?6.Steve,have you decided yet which book to write about for English clas
3、s?7.Have you at least read the back of the book to see what its about?8.But Ive found the ship and made a small boat.9.Ive brought back many things I can use.10.Although I have lost everything,I have not lost my life.11.I have already cut down trees and built a house.12.He is smart and I have alread
4、y taught him some English.1.I _ _ read this book _.2.Sandy,_ you _ the reader_?3.Ive _ read it.4.Ive _ _ Oliver Twist and 5.Have you _ them _?6.Steve,_ you _ _ which book to write about for English class?7._ you at least _ the back of the book to see what its about?justFill in the blanks.have not ye
5、thavefinishedyetalready finished heard ofyetgohavedecided yet Ready?Haveread8.But I _ _ the ship and made a small boat.9.Ive _ _ many things I can use.10.Although I _ _ everything,I _ _ _ my life.11.I have _ _ _trees and _ a house.12.He is smart and I _ _ _ him some English.brought backhave losthave
6、 not lostalready cut downbuiltalreadyhavetaught have found以上我们已经通过归纳总结和练习对本课的语法内容有了一定的了解，下面就让我们根据之前练习的考察情况进一步选择讲解该语法项的重难点。现在完成时现在完成时 Present perfect定义：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。常与 already,yet,just 等词连用。现在完成时的构成 肯定句:主语+have/has+V-ed+其他否定句:主语+havent/hasnt+V-ed +其他一般疑问句：Have/Has+主语+V-ed+?肯定答语:Yes,主格代
7、词+have/has.否定答语:No,主格代词+havent/hasnt.V-ed 的变化形式大部分与动词过去式形式相同，但是不规则动词的变化形式没有规律，需要记忆see-saw-_;be-was,were-_eat-ate-_;break-broke-_go-went-_;take-took-_send-sent-_;find-found-_make-made-_;have-had-_seenbeeneatenbrokengonetakensentfoundmadehad1.表示动作到现在为止已经完成或刚刚完成 I have finished my work.We have set up m
8、any new factories.2.动作发生在过去，强调对现在的结果、影响等 Have you ever seen the film“Harry Potter”?Ive spent 3 years in the countryside.现在完成时现在完成时用法用法3.现在完成时可以用在条件或时间状语从句中，表示将来某个时刻之前已经完成的动作Ill go home as soon as I have finished my homework.Please lend me that book if you have finished reading it.我已经看过这部电影了。I have a
9、lready seen the film.我已经解决了这个问题。I have already solved this problem.我已经做完家庭作业了。I have finished my homework already.already“已经”，常用于肯定句中。一般置于助动词have/has之后，V-ed 之前，但也可以放在句末。现在完成时现在完成时 与与already 连用连用1)“已经”，常用在疑问句中 琳达已看过这本书了吗?Has Linda read the book yet?你完成家庭作业了吗？Have you finished your homework yet?2)“还，仍
10、然”，常用于否定句和疑问句 他还未开始工作。He has not begun to work yet.yet，在现在完成时句型中常置于句末现在完成时现在完成时 与与yet 连用连用我刚吃过午饭。I have just finished lunch.我们刚刚听说她的婚讯。We have just heard of her marriage.just“刚刚”，常用于肯定句中。一般置于助动词have/has之后，V-ed 之前现在完成时现在完成时 与与just 连用连用*现在完成时现在完成时:表示该事件是在现在之前表示该事件是在现在之前 的某一个时间里发生的，的某一个时间里发生的，重点在于强调已完成
11、动作重点在于强调已完成动作对对 现在的影响现在的影响*一般过去时:只表示过去某一具体时间发生的事实，不表示和现在的关系1)I went home at 10:00 yesterday.I have got home now.我昨天十点回家的。现在我已经到家了。2)I have already finished my homework.I finished it an hour ago.我已经写完作业了，我是一个小时之前写完的。试比较当 A 问对方把自己的书放在何处时，他强调的是现在找不到了，故用现在完成时。但B的回答只是说明当时放的位置，故用一般过去时。A:Where _ you _ my b
12、ook?I cant find it.B:I _ it on your desk yesterday.当没有明确的过去时间状语时，判断该用现在完成时还是一般过去时的标准是：看该行为是否对现在有影响，即该句所强调的是什么。如：puthaveput用put的适当形式填空。Use the words in brackets to complete the conversations.4a4a1.A:Would you like something to drink?B:No,thanks._(just/drink some tea)2.A:I heard you lost your key._?(f
13、ind)B:No,not yet.Ive just drunk some tea.Have you found it yet3.A:Do you know when Tom is leaving?B:_.(already/leave)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 about our plan?B:I _.(not/tell them/y
14、et)He has already leftdid he leaveShe has already seen the filmhavent told them yetFill in the blanks with the correct forms of the words in brackets.4b4b Sally _(love)reading.In the morning,she reads the newspaper and in the evening she reads books.She _ already _(read)more than 100 different books
15、!Her favorite kind of books is science fiction.She is interested in science and technology and loves to imagine what loveshasread 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 time she is in
16、the library,Sally looks at the many books she _(not read)yet and she cant wait to read them!will befinishedwill writehasnt read根据句意及所给提示填空。1.Excuse me.Have you _(see)my dictionary?2.Have you _(find)your wallet _?3.I _ _ _(finish)my homework.Lets go out.4._ you _(read)todays newspaper _?seenfoundhave
17、 already finishedHave readyetyet1.我已经读完了这本科幻小说。2.我上个月参加了读书俱乐部，并已读了五本书。翻译下列句子。I have already finished reading the science fiction.I joined the book club last month and I have read five books already.3.托尼昨天买了一盘流行音乐CD，但他还没听。4.汤姆还没有看过那部新电影。5.Jim已经完成了他的家庭作业，现在空闲了。Tony bought a pop music CD yesterday but
18、he hasnt listened to it yet.Tom hasnt seen the new film yet.Jim has finished doing his homework already.He is free now.Have you read Little Women yet?Yes,I have./No,I havent.Has Tina read Treasure Island yet?Yes,she has.She thinks that its fantastic.Have you decided which book to write about yet?Yes,I have.Ive already finished reading it.It was really good.课时重点回顾1.Review the new words and expressions.2.Make sentences using the Present perfect tense with already and yet.(at least 10 sentences)3.Preview the new words and expressions.4.Preview the conversation between Alex and Dave.
