当前位置:首页 -初中英语试卷 - 初中三年级英语试题 - 正文*

新目标九年级英语语法总结 Unit5

2015-1-23 23:43:51下载本试卷

现在完成时态

⑴由have/ has + 过去分词

⑵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, just , yet , ever, never 连用

Have you finished your work yet?你完成了你的工作了吗?

Yes, I have. I have just finished it. 是的。我刚刚完成了。

I have already finished it . 我已经完成了。

Have you ever been to China? 你曾经去过中国吗?

No, I have never been there. 没有,我从来也没有去过。

⑶①表示过去已经开始,持续到现在的动作 或状态和表示过去某一时刻延续到现在(包括现在在内)的一段时间的状态连用如:(for + 时间段,since + 时间点,或过去某一动作, 以及how long )

②注: 非延续性动词在现在完成 时态中不能和for, since 引导的表示一段时间的状语的肯定句连用。

应转为相应的延续性动词 如:

buy---- have  die---- be dead  join ---- be in 

borrow----- keep  leave---- be away 

I have bought a pen.------ I have had a pen for 2 weeks.

The dog has died.------- The dog has been dead since last week.

⑷①have (has) been to + 地点  去过某地 已经回来

②have (has) gone to + 地点  去了某地 没有回来

③have been in + 地点    一直呆在某地 没有离开过 如:

She has been to Shanghai. 她去过上海。(已经回来)

She has gone to Shanghai. 她去了上海。(没有回来)

She has been in Shanghai for 2 days.她呆上海两天了。(没有离开过上海)

1.情态动词must, may , might, could, may , can't表示推测含义与用法后面都接动词原形,都可以表示对现在情况的揣测和推断但他们

 含义有所不同

  must 一定 肯定 (100%的可能性)

  may, might, could有可能,也许  (20%-80%的可能性)

  can't 不可能,不会   (可能性几乎为零)

  The dictionary must be mine. It has my name on it.

  The CD might/could/may belong to Tony because he likes listening to pop music.

  The hair band can't be Bob's. After all, he is boy!

2. whose 谁的 疑问词 作定语 后面接名词

如:Whose book is this? This is Lily's.

3. belong to 属于 如:

  That English book belongs to me.

4. 当play 指弹奏乐器时,常在乐器前用定冠词 如:

  play the guitar play the piano play the violin

当play 指进行球类运动时,则不用定冠词 如:

  play football play basketball play baseball

5. if引导的条件状语从句,主句用一般将来时,从句用一般现在时代替将来时 如:

  If you don't hurry up, you'll be late.如果你不快点,你将会迟到

6. if you have any idea== if you know 如果你知道

7. on 关于(学术,科目)

8. try to do sth. 尝试做某事 如:I try to climb the tree. 我尝试爬树。

9. because of , because

  because of + 名词/代词/名词性短语

第 1 2 下一页