1. 动词变化：一般过去时主要表示过去的动作或状态，在句中由主语＋动词的过去式来表达。

构成规则        原形        过去式
一般在动词末尾加-ed        work
plant
play        worked
planted
played
结尾是e的动词在末尾加-d        like
live
change        liked
lived
changed
末尾只有一个辅音字母的重读闭音节词，先双写这个辅音字母，再加-ed        plan（计划）
stop
drop        planned
stopped
dropped
以辅音字母加y结尾的，先变y为i再加-ed        carry
study
cry        carried
studied
cried

否定式        疑问式        否定疑问式        简单回答
I did not work.         Did I work?         Did I not work?         Yes, you did.
No, you didn’t.
You did not work.         Did you work?         Did you not work?         Yes, I did.
No, I didn’t.
He / She / It did not work.         Did he / she / it work?         Did he / she / it not work?         Yes, he / she / it /did.
No, he /she /it didn’t.
We did not work.         Did we work?         Did we not work?         Yes, you did.
No, you didn’t.
You did not work.         Did you work?         Did you not work?         Yes, we did.
No, we didn’t.
They did not work.         Did they work?         Did you they not work?         Yes, they did.
No, they didn’t.
  2. 一般过去时的基本用法：
    （1）带有确定的过去时间状语时，要用过去时。（eg: yesterday, last year, just now, two days ago, in the old days等）
eg: He left just now. Lei Feng was a good soldier.
What did you have for breakfast this morning?
    （2）表示过去某一段时间内经常或反复发生的动作，这时常和表示频度的状语连用。
    eg: Last term we often did experiments. He always went to work by bus.

原先的账号，不能用了，新账号，我要努力！！！！！

原先的账号，不能用了，新账号，我要努力！！！！！

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