时间状语有：yesterday, last week, an hour ago, the other day, in 1982等。
Where did you go just now?
表示在过去一段时间内，经常性或习惯性的动作。
When I was a child, I often played football in the street.
Whenever the Browns went during their visit, they were given a warm welcome.
一般现在时的用法
1）经常性或习惯性的动作，常与表示频度的时间状语连用。
时间状语： every…, sometimes, at…, on Sunday
I leave home for school at 7 every morning.
2 客观真理，客观存在，科学事实。
The earth moves around the sun.
Shanghai lies in the east of China.
3）表示格言或警句中。
Pride goes before a fall. 骄者必败。
注意：此用法如果出现在宾语从句中，即使主句是过去时，从句谓语也要用一般现在时。
例：Columbus proved that the earth is round.
4）现在时刻的状态、能力、性格、个性。
I don’t want so much.
Ann Wang writes good English but does not speak well.
比较：Now I put the sugar in the cup.
I am doing my homework now.
第一句用一般现在时，用于操作演示或指导说明的示范性动作，表示言行的瞬间动作。再如Now watch me, I switch on the current and stand back.
第二句中的now是进行时的标志，表示正在进行的动作的客观状况，所以后句用一般现在时。
【典型例题】
例：找出下列句子或短语中的错误，包括书写格式、单词拼写、标点以及各种语法句式错误。（不止一个）
1、Here a card for your.
2、Happy teacher’s day!
3、A: The ballpoint is for you. B: That’s all right.