初一英语四种时态讲解

初中英语四种时态详细讲解

（适合初一学生）

1. 一般现在时：

（1）表示经常发生

（2）构成：先看主语

主语是三单，动词+S

主语非三单，动词用原形。

They ofte n watch TV.

He ofte n watches TV

（3）变化：

问句：主语前+do/does,动词用原形；

否定：主语后+don‘ t/doesn,'动词用原形。Do they often watch

TV? They don ' t often watch TV

Does he often watch TV? He doesn ' terftwatch TV

2. 现在进行时：

a）表示现在正在发生。句中常有now，look，listen等

b）构成：主语+be+doing

She is watch ing TV now.

c）变化

问句：提前be（am, is，are）

Is she watchi ng TV now?

否定：be后+not

She isn ' t watching TV now.

d）加ing的方法：

—般直接+，去不发音的e加，闭音节双写+。

3. 一般过去时：

a）表示过去的动作或状态，句中常有yesterday, last等过去的时间。

b）构成：

动作：主语+动词的过去式

状态：主语+was/were句中没实意动词）

Shewatched TV last ni ght.

Shewas here last ni ght.

c）变化：

问句：主语前+did，动词用原形

Did she watch TV last night?

Was she here last ni ght?

否定：主语后+didn '动词用原形。

She didn ' t watch TV last night.

She wasn ' t watch TV last night.

⑷过去式：

一般+ed；e结尾+d;辅音+y的，去y+ied;闭音节双写+ed;不规则的120页。

4. 一般将来时：

a）表示：将来，句中有表示将来的时间：tomorrow、next、soon, in two days 等

b）构成

A:主语+will+do （任何人称）

B:主语+shall+do （仅第一人称I，we）

C:主语+be goi ng to +do 女口：

A: She will watch TV this evening.

B: We shall watch TV this evening.

C: Sheis going to watch TV this evening.

c）变化

问句：提前will/shall/be

A:Will she watch TV this …？

B: Shall we watch TV …？

C: Is she going to watch …？

否定：在will /shall/be 后+not

A: She won ' t watch TV …

B: We shall not watch …shan 't C: She isn ' t going to watch … There is a meet ing n ext week.

There was a meet ing yesterday. There will be a meeting next •…

=There is going to be a meeting next