师梦圆 - 让备课更高效、教学更轻松!
网站地图
师梦圆
师梦圆初中英语教材同步人教版九年级全一册Section A Grammar focus 4a—4b下载详情
  • 下载地址
  • 内容预览
下载说明

1、本网站免费注册后即可以下载,点击开通VIP会员可无限免费下载!

2、资料一般为word或PPT文档。建议使用IE9以上浏览器或360、谷歌、火狐浏览器浏览本站。

3、有任何下载问题,请联系微信客服。

扫描下方二维码,添加微信客服

师梦圆微信客服

内容预览

(一)、概念:

1. 表示过去或已经完成的某一动作对现在 成的影响或结果。常与下列状语连用:already, just, yet, ever, never, before

I have just had my breakfast.(现在我不饿)

2. 表示过去已经发生,持续到现在的动作或状态,可以和表示从过去某一时刻延续到现在(包括“现在”在内)的 一段时间的状语连用。I have lived here since three years ago.

a. for和表示一段时间的词组连用。

如:I have lived here for three years.

b. since和表示过去某一时刻的词或词组连用。如:since 1997, since two years ago, since last week

I have lived here since three years ago.

(二)、构成: have / has + v 过去分词

肯定句:I have finished my homework.

否定句:I haven't finished my homework.

一般疑问句:Have you finished your homework? Yes, I have. / No, I haven’t.

(三)相关知识

1、already

“已经”通常用于肯定句中。 I have already posted the letter.

有时,也用在疑问句中表示惊讶。 Have you eaten up all the food already?

2、yet

“仍然,还 ” 用在疑问句和否定句中。

I haven’t read this book yet . Have you had breakfast yet ?

3、ever“曾经”通常用于疑问句和肯定句中。

I have ever seen this film. Have you ever been to the USA ?

4、never“从来不” 用在否定句中。

Is he famous? I have never heard of him.

5、just“刚刚 ”用在陈述句中。

I have just bought a novel.

6、before“以前”用在完成时中,放在句尾。

Ihave never read this kind of books before.

7、动词的过去分词

a.规则动词finish--finished--finished live--lived--lived

carry--carried--carried stop—stopped--stopped

相关资源

教材