4、还可用于表示已经制定好计划的将来的情况，如在谈论节目程序、时刻表和日历表等的时候。

时间状语：every day, seldom, sometimes, often, usually, always, now and then, in the morning, once a week等

动词变化：一般现在时态中，除主语为第三人称单数外(谓语动词要加s、es，be动词和have有特殊的形式)，谓语动词一般用原形表示。

　在一般现在时态中，如果主语是第三人称单数，谓语动词要有相应的变化：

3、表示客观事实真理或普遍的现象或常识。

一般现在时态

概念：1、表示目前为真实的状态

2、表示经常发生的习惯性动作和状态

4.couldn’t see; Could you see; could, couldn’t; What could you see

3.didn’t teach; Did Daniel teach; did, didn’t; What did Daniel teach, do

2.wasn’t; Was; was, wasn’t; Where was

4. Tom always plays basketball with his classmates on Sundays.

3. Lily is a hard-working student, but in fact, she doesn’t like math.

2. My teacher is an American, but he speaks good Chinese.

12.costed→cost