個(gè)性化學(xué)習(xí)
來(lái)源：學(xué)大教育 時(shí)間：2016-01-25
表示過去發(fā)生的動(dòng)作或事件， 常和表示過去的時(shí)間狀語(yǔ)連用，如yesterday, last night, the day before yesterday, 3 days ago,
含有be動(dòng)詞的句子， 將動(dòng)詞變?yōu)檫^去式，am, is的過去式為was，are的過去式為were
I was at the butcher’s.
You were a student a year ago.
The teacher was very beautiful ten years ago.
★變疑問句將be動(dòng)詞移動(dòng)到句首
Were you at the butcher’s?
Were you a student a year ago?
Was the teacher very beautiful ten years ago?
★變否定句在be動(dòng)詞后面加not
I was not at the butcher’s.
You were not a student a year ago.
The teacher was not very beautiful ten years ago.
★肯定回答否定回答
Yes, I was. No, I was not.
Yes, you were. No, you were not.
Yes, he/she was. No, he/she was not.
★特殊疑問句：
What did you do?
(必背)
不含有be動(dòng)詞的句子，將動(dòng)詞變?yōu)檫^去式
I finished my homework yesterday.
The boy went to a restaurant.
The Sawyers lived at King Street a year ago.
★變疑問句在句首加did， 動(dòng)詞變?yōu)樵?/strong>
Did you finish your homework yesterday?
Did the boy go to a restaurant?
Did the Sawyers live at King Street a year ago?
★變否定句在主語(yǔ)和動(dòng)詞之間加did not
I did not finish my homework yesterday.
The boy did not go to a restaurant.
The Sawyers did not live at King Street a year ago.
★肯定回答及否定回答
Yes, I did. No, I didn’t.
Yes, he did. No, he didn’t.
Yes, they did. No, they did not.