外研版八年级下册英语语法复习-现在完成时ppt课件.pptx

1、现在完成时的标志词现在完成时的标志词 1 2 3 4 影响性 基本构成 标志词 持续性 现在完成时现在完成时 method 2: It is + 时间段时间段 since +一般过去时的一般过去时的句子句子. 1.1.他的爷爷已经去世他的爷爷已经去世2 2年了。年了。 2.2. Nick Nick 参军参军3 3年了年了. . 3.3. 他离开深圳好长时间了。他离开深圳好长时间了。 4.4. 这本书我已借了这本书我已借了4 4个月了个月了. . It is 2 years since his grandpa died. It is 3 years since Nick joined the a

2、rmy. It is a long time since he left Shenzhen. It is 4 months since I borrowed the book . 第三部分 现在完成时的标志词 04 What are the key words for the Present Perfect Tense? 04 *以以already, justalready, just和和yetyet为标志为标志 He has already got her help. 他已得到她的帮助。 He has just seen the film. 他刚刚看过这场电影。 He hasnt come

3、back yet. 他还没有回来。 * 以以everever和和nevernever为标志为标志 This is the best film I have ever seen. 这是我曾经看过的最好的一部电影。 He has never been to Beijing. 他从没有到过北京。 ever 曾经曾经 用于疑问句中用于疑问句中 never 从不从不 带有否定意义带有否定意义 just 刚刚刚刚 一般置句中一般置句中 与现在完成时连用与现在完成时连用 just now 刚才刚才 与一般过去时连用与一般过去时连用 * * 以以so farso far（到目前为止）和（到目前为止）和befo

4、rebefore为标为标 He has got to Beijing so far. 到目前为止他已到了北京。 She has passed the exam so far. 到目前为止她已经通过了考试。 Have you seen the film before? 你之前看过这部电影吗？ * 以以动作发生的次数（动作发生的次数（once,twice)once,twice)为标志为标志 He says he has been to the USA three times. 他说他已经去过美国三次了。 He has already seen this film five times. 这部电影他

5、已经看过五遍了. 1.A: _ you ever _ to the park? ( be ) B: No, never. 2.A: _ your brother _ his homework yet? (finish) B: Yes, he s already done it. 3.I _ just _ the desk, you can take it to your classroom . (mend ) 4.Tom _ in the factory since he left school ten years ago. (work ) Have been Has finished hav

6、e mended has worked 一般过去时：一般过去时：表示过去某时发生的动作或单纯叙述过去的事表示过去某时发生的动作或单纯叙述过去的事 情，强调情，强调动作动作，和现在无关。，和现在无关。 现在完成时：现在完成时：表示过去发生的某一动作对现在造成的影响或表示过去发生的某一动作对现在造成的影响或 结果，强调的是结果，强调的是现在的情况现在的情况。 一般过去时一般过去时常与具体的时间状语连用。常与具体的时间状语连用。 现在完成时现在完成时通常与模糊的时间状语连用，或无时间状语通常与模糊的时间状语连用，或无时间状语。 01 意义上 02 时间状语上 I saw this film yest

7、erday. （只说明动作发生在过去只说明动作发生在过去） I have seen this film. （电影的内容已经知道了电影的内容已经知道了） She has returned from Paris. （她已从巴黎回来了她已从巴黎回来了） She returned yesterday. （她是昨天回来的她是昨天回来的） He has been in the League for three years. (在团内的状态可延续在团内的状态可延续) He joined the League three years ago. ( 三年前入团，三年前入团，joinedjoined为短暂行为为短

8、暂行为) 注意注意： 句子中如有一般过去时的时间副词句子中如有一般过去时的时间副词（如（如yesterday, last week, in yesterday, last week, in 19601960）时，不能使用现在完成时，要用过去时。时，不能使用现在完成时，要用过去时。例如：例如： （）Tom has written a letter to his parents last night. （）Tom wrote a letter to his parents last night. 01 意义上 一般过去时的时间状语有：一般过去时的时间状语有：yesterday,the day be

9、fore yesterday, last week，ago, in1980, in October, just now等具体等具体 的时间状语。的时间状语。 现在完成时的时间状语有：现在完成时的时间状语有：for, since, ever, never, just, up to now，recently，already, yet,in the past several days / weeks/ years ，for the last few weeks，these days，for a long time 等不确定的时间状语。等不确定的时间状语。 02 时间状语上 A： I _(not se

10、e) George since he_ (leave) this school a year ago . _ you ever _(see) him again ? B： Yes, I have. I _(meet) him a few days ago . A： Where _ you _ (meet) him ? B： I _ (meet) him in the museum . He was looking at some paintings when I _ (see) him . We _ (say) hello to each other . 根据情景用动词的适当形式填空根据情景用

11、动词的适当形式填空 havent seen left Have seen met did meet met saw said 1. I _ (read) the novel twice. Its interesting. 2. She _(go) to Pairs, hasnt she? Yes. How _ she _(go) there? She _(go) there by air. 3. So far, many countries _(develop) their software programs. 4.Mr Chen _(give)up smoking last year. 5.Mr Chen _(give) up smoking since last year. have read has gone did go went have developed gave has given 动动 词词 填填 空空 解题思路 1.理解句意，确定时态； 2.寻找信号词，锁定时间状语； 3.熟悉谓语构成，确定答案。