初中英语时态讲解

初中英语时态讲解,标签：英语文集大全,http://www.5ijcw.com

run – running     sit – sitting

(注意：listen – listening  open – opening  eat – eating 

rain – raining   sleep - sleeping)

4)

6 ．过去进行时

1）  表示过去某一时刻或某阶段时间正在进行的动作， 通常与 at 6:00 yesterday, at this/ that time yesterday, when 引导的时间状语等连用。

2）  基本结构  主语+be (was/were) +v- ing +…

1.      It was raining at 7:00 the day before yesterday.

2.      They were building a reservoir at this time last winter.

3.      We were reading when the teacher came in.

We weren’t reading…

Were you reading…

What were you doing when the teacher came in.

3)       例句 1. 前天那个时候Tom 正在看电影。

         2. 上周日四点我们正在游泳。

3.师看见我们时我们正在玩扑克。

4.      I ____ (do) my homework yesterday.

5.      He ____ (do) his homework at 5:00 yesterday.

6.      He ____ (do) his homework now.

7.现在完成时

1）   1. 表示过去发生的动作对现在造成的影响

2．表示过去某时间已经开始一直持续到现在的动作或状态

通常与下列时间状语连用  up to now, in the past, recently, by… , for 5 years, since 1994, so far, already, yet, ever, just…

2)       基本结构  主语+ have/has + P.P(动词过去分词)

1.      I’ve finished this work.

2.      He has ever been to Australia.

3.      I have not heard from her recently.

4.       I have already read this book.

         Have you read…?

         Yes, I have.   No, I haven’t.

         What have you read?

3)       过去分词的构成 （规则变化同过去式的构成）

不规则变化如下 

do  did  done

go  went   gone

eat   ate   eaten 

come   came  come

have   had  had

write   wrote   written

be  was/were  been

see   saw   seen

hear   heard  heard

swim  swam   swum

drink  drank  drunk 

give  gave  given

forget  forgot  forgotten

take  took  taken

keep  kept  kept

sleep  slept  slept

teach  taught  taught

buy  bought  bought

tell  told  told

make  made  made

cut    cut    cut 

hurt   hurt   hurt

read   read   read 

let   let       let

4）  注意

1.       含有终止意义或暂短意义的动词不能与  for, since  引导的一般时间状语连用。

（buy, begin, die, come, go , join, leave 等）

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