英语人教版八年级下册英语语法专题:现在完成时ppt课件.ppt

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1、,Enjoy learing English,淮南市寿县双庙初级中学,王延润,Enjoy learing English,2017中考英语专题复习,王延润,淮南市寿县双庙初级中学,现在完成时,The present perfect tense,一、基本结构(构成):,have / has + PP,助动词 (可以帮助构成肯定、疑问和否定句),Enjoy learing English,1.He has cleaned his room. (改为一般疑问句),Has he cleaned his room?,2. She has lived in London for four years. (

2、划线部分提问),How long has she lived in London?,Enjoy learing English,即学即练(1):,3. He has been to China, _ _? (写出反义疑问句部分),hasnt he,4. They have come back from work. (写否定句),They havent come back from work.,Enjoy learing English,即学即练(1):,二 、现在完成时的主要用法(定义),She has gone to shanghai.(她已经去了上海,对现在造成的结果是:She isnt

3、here now.),1. 用法 : 表示过去发生的某一动作 对现在造成的影响或结果。,Enjoy learing English,She went to shanghai yesterday.,2. 用法 : 表示过去某一时间已经开始、持续到现在(也许还会继续进行下去)动作或状态,常和表示一段时间状语,如since+过去的时间点, for+时间段等连用。,(注意:句中谓语动词要用延续性动词),Enjoy learing English,I have learned English for seven years,一段时间的表达方法有两种:1) for + 时间段eg:I _English_.

4、 我学英语已经两年了。,for a year for two weeks for three years,for two years,have studied,Enjoy learing English,过去的某一时刻(时间点)一般过去时态的时间状语从句,2) since +,They _in Beijing_. 他们自年就一直住在北京。,since last week, since 3 years agosince nine, since 2008 ,since you came to Chinasince you got home,since 1980,have lived,Enjoy l

5、earing English,即学即练(2) : 选用 for和 since填空:1. We havent seen each other _ a long time.2. His father has been in Hefei _ 10 years ago.3. The film has been on _ 20 minutes.4.Tom has worked in the company he left school ten years ago.,for,for,since,Enjoy learing English,since,Some verbs cant often be use

6、d with for or since,Enjoy learing English,非延续性动词在肯定句、疑问句中不能与时间段连用,这些动词是:become, begin, buy, borrow, arrive, come/go, die, fall, finish, get to know, join, leave, marry 等。,为了表述这种意思,我们常用相应的延续性动词”来代替短暂性动词.,Please point out any mistakes and correct,She has bought the computer for two years.,had,Enjoy le

7、aring English,Please point out any mistakes and correct,How long have you come to the United States?,been in,Enjoy learing English,Please point out any mistakes and correct,I have borrowed the dictionary since 3 days ago .,kept,Enjoy learing English,“延续性动词”来代替短暂性动词,open,have/has been open,Enjoy lear

8、ing English,即学即练(3) :,Enjoy learing English,1.我买了这块手表五年了。I have bought this watch for five years.I have had this watch for five years/since 5 years ago. 2.这位老人已经死了十年了。,The old man has died for ten years. The old man has been dead for ten years /since 10 years ago., 翻 译 练 习,Enjoy learing English,Othe

9、r key words:,yet,ever,never,just,before,already,so far,in the past /last 10 years,We _ only _ 100 trees so far.,have planted,can you distinguish?,去过某地已经回来常与ever, never,once,twice,连用,一直留在某地与for / since连用用how long 提问,去了某地还没回来不与只用于第三人称,Her sister _ Australia,She left this morning.,has gone to,Enjoy lea

10、ring English,can you distinguish?,去过常与ever, never,once,twice,连用,在与时间段连用用how long 提问,去了说话时某人不在只用于第三人称,A: Where is Bob ?B: He _ Japan with his sister.,has gone to,Enjoy learing English,can you distinguish?,去过常与ever, never,once,twice,连用,在与时间段连用用how long 提问,去了说话时某人不在只用于第三人称,A: How long _ you _ China? B:

11、 I _ here for 3 years.,have been,have been in,Enjoy learing English,can you distinguish?,去过常与ever, never,once,twice,连用,在与时间段连用用how long 提问,去了说话时某人不在只用于第三人称,A: _ you ever _ the city ? B: No , never .,Have been to,Enjoy learing English,Homework,1、复习并巩固现在完成时的用法。,2、合作完成补充专题练习(学案)。,Enjoy learing English,3、独立完成A计划专题练习九。,Thank you,Enjoy learing English,

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