现在完成时课件[1].ppt

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1、Unit 1-Unit2Grammar现在完成时现在完成时 主菜单上一页下一页现在完成时的构成现在完成时的构成现在完成时的主要用法现在完成时的主要用法现在完成时的时间状语现在完成时的时间状语短暂性动词与时间段的关系短暂性动词与时间段的关系have been 与与have gone 比较比较 现在完成时的基本句型现在完成时的基本句型 现在完成时的构成现在完成时的构成主菜单上一页下一页助动词助动词have (has）+ + 过过去分词去分词上一页下一页 Typeoriginal p.t p.pcostcostcostreadreadreadmeetmetmetcatchcaughtcaught r

2、ideroderiddenspeakspokespokenkeepkeptkeptdrinkdrankdrunkeatateeatenABBAAA ABC主菜单现在完成时的主要用法现在完成时的主要用法一.表示过去发生或已完成的某一动作对现在造成的影响和结果。上一页下一页He has just turned off the light. (他刚把灯关了。)相当于：He turned off the light just now. The light isnt on now. 即关灯这一动作对现在造成的结果和影响：现在灯不亮了。 I have already finished my homewor

3、k.(我已经完成了家庭作业我已经完成了家庭作业。)主菜单二.表示从过去某一时刻开始并一直延 续到现在的动作或状态,但动作或状态可能仍在继续。上一页下一页She has lived here since she was born.自从她出生时就一直住在这儿。I have learnt English for more than ten years.我已经学了10多年的英语。现在完成时的主要用法现在完成时的主要用法主菜单三.表示人曾有过或到目前为止从未有过的经历.上一页下一页Have you ever been to the Summer Palace?(你曾去过颐和园吗?) I have nev

4、er had a car. (我从未有过汽车。)主菜单现在完成时的现在完成时的时间状语时间状语常与连用，如:already, never, ever, just, yet, before, so far, in the past few years等,表示“”所发生的动作.还可以和表示连用， since+时间点时间点, for +时间段时间段等.上一页下一页主菜单一、一、sincesince Mr. Smith has worked here since 1984. （1984年以来，史密斯先生一直在这工作。）I have known Daniel since 7 years ago.自从自从

5、7年前我就认识丹尼尔年前我就认识丹尼尔。Hes learned about 500 words since he went to college.（他上大学以来大约学了五千个英语单词）上一页下一页主菜单一个时间点一个时间点一段时间一段时间ago从句从句二二、forfor一段时间一段时间（two weeks/six months/five daystwo weeks/six months/five days）forfor短语短语表示动作延续多长时间表示动作延续多长时间 。 He has taught in this school for four years. （我们认识有二十年了。） I ha

6、vent seen her for a long time. （我好久没有见到她了。）上一页下一页主菜单选用选用 forfor和和 sincesince填空填空: :1.We havent seen each other _ a long time.1.We havent seen each other _ a long time.2.His father has been in the Party _ 10 years 2.His father has been in the Party _ 10 years ago.ago.3.The film has been on _ 20 minut

7、es.3.The film has been on _ 20 minutes.4.Mr Green has worked here _ he came to 4.Mr Green has worked here _ he came to China.China.5.His grandparents have been dead _ several 5.His grandparents have been dead _ several years.years.6. Its five years _ we met last time.6. Its five years _ we met last

8、time.forforsincesinceforforsincesinceforforsincesince下一页上一页主菜单三、三、just, already, everjust, already, ever， recentlyrecently，before, before, nevernever是完成时态的时间状语，而是完成时态的时间状语，而just just nownow / /a moment agoa moment ago 是一般过去时的时间是一般过去时的时间状语。状语。The train has just arrived. （火车刚到。）Did you see Joan just n

9、ow? （你刚才看到琼了吗？）Have you heard from your family recently? （你最近收到家人的来信了吗？）上一页下一页主菜单 arrive borrow buy die leave begin/start come /go get married join 下一页上一页主菜单keephavebe in/atbe dead,be away (from),be onbe in /a member of,be marriedbe here /there短暂性动词在短暂性动词在肯定句、疑问句中不能与时间段连用肯定句、疑问句中不能与时间段连用，这些动词是：这些动词是

10、：电影开始五分钟了。The film has been on for five minutes.It is five minutes since the film beganThe film began five minutes ago.他入党五年了。He has been in the Party for five years.It is five years since he joined the Party.He joined the Party five years ago .下一页上一页主菜单 翻翻 译译 并判断正误并判断正误 1. 1.我买了这块手表五年了。我买了这块手表五年了。

11、2. 2.这位老人已经死了十年了。这位老人已经死了十年了。 I have bought the watch for five years. I have had the watch for five years. The old man has died for ten years. The old man has been dead for ten years/since 10 years ago.WW下一页上一页主菜单 3.3.他已经回来三天了。他已经回来三天了。 4. 4.我离开家乡已十年了。我离开家乡已十年了。 He has come back for 3 days. He has b

12、een back for 3 days/since 3 days ago. I have left hometown for 10 years. I have been away from hometown for 10 years.WW下一页上一页主菜单have been 与have gone 的用法比较 have been to 意思是“到过，去过”，表示曾经到过某处，但现在人不在那儿。have gone to 意思是“去了”，表示已经去了某地，现在人可能在去的途中或已在那儿了。上一页下一页主菜单改改 错错1. The film has stopped for an hour. .2. I

13、 have borrowed this book for two weeks.3. Kitty has bought a book since last week.4. Our manager isnt in today. He has been to Guangzhou.been overkeptgone下一页上一页主菜单had陈述句肯定形式。主语主语+ have/has+ 过去分词过去分词+其它其它陈述句否定形式。主语主语+ have/has+ not+过去分词过去分词+（在助动词have/has后+not，可缩写为havent/hasnt）上一页下一页主菜单 现在完成时的基本句型一般疑问

14、句形式及其答语。Have/Has+主语主语过去分词过去分词 肯定回答：肯定回答：Yes , 主语主语 have/has. 否定回答：否定回答：No , 主语主语 havent/hasnt.特殊疑问句形式。（疑问词+一般疑问句）特词特词+ have/has+主语过去分词主语过去分词？e.g. Where has he gone? 他去了哪里？上一页下一页主菜单上一页主菜单动动 词词 填填 空：空： 1._ you already_ (clean) the room? Yes, we _(do) that already. When _ you _(do) it? We _(do) it an h

15、our ago. HaveHavecleanedcleanedhave donehave donediddiddododiddid下一页上一页主菜单 2_ he _(see) this film yet? Yes. When _ he _(see) it? He _ it last week. 3. _you ever _(be) there many times? Has seendid seesawHave been4. I _ (read) the novel twice. Its 4. I _ (read) the novel twice. Its interesting.interesting.5. She _(go) to Pairs, hasnt she? 5. She _(go) to Pairs, hasnt she? Yes.Yes.6. 6. How _ she _(go) there How _ she _(go) there yesterday?yesterday? She _(go) there by air.She _(go) there by air.have readhave readhas gonehas gonediddidgogowentwent下一页上一页主菜单