be 動詞的過去時
1) be 動詞過去時的肯定句
Mike was in the United States last year. 邁克去年在美國。 比較be動詞的現(xiàn)在式和過去式：| 主語 時態(tài) | 現(xiàn)在時 | 過去時 |
| I （第一人稱單數(shù)） | am | was |
| He,She,It（第三人稱單數(shù)） | is | |
| You（第三人稱單、復數(shù)） | are | were |
2) be動詞過去時的否定句
He was not in Canada last year. 他去年不在加拿大。 be動詞過去時的否定句的結構和現(xiàn)在時一樣，只要在be動詞過去式（was，were）后面加上not就可以了。否定式的was not，were not大多使用縮寫形式wasn't（讀作>&LQC）和weren't（讀作V+:QC） I wasn't busy the other day. 前幾天我不忙。 There weren't any boys in the room. 教室里一個男孩兒也沒有。 3 be動詞過去時的疑問句（一般疑問句和特殊疑問句） Was it raining in Beijing yesterday？ No，it wasn' t. It was cloudy. 昨天北京下雨了嗎？不，沒下雨。昨天北京陰天。 Where were you yesterday morning？I was at school. 你昨天上午去哪兒了？我在學校。 be動詞過去時一般疑問句的結構和一般現(xiàn)在時一樣，只要把be動詞的過去式was，were調到主語前面即可。Was（Were）+ 主語～？回答時，需用yes，was（were)?；騈o，…wasn't（weren't）。 注意 以疑問詞開始的特殊疑問句，回答時，不能用Yes，No直接回答所問的問題即可。 Was your father free this morning？ 今天上午你爸爸有空嗎？ Yes，he was.是的，他有空。 No， he wasn't.不，他沒空。 Was there any water in the bottle？ 瓶子里有過水嗎？ Yes，there was.是的，曾經有過。 No，there wasn't 不，沒有過。 比較 be動詞的現(xiàn)在時和過去時句型，以he為主語：| 句型 時態(tài) | 一般現(xiàn)在時 | 一般過去時 |
| 肯定句 | He is ~. | He was ~. |
| 否定句 | He isn't ~. | He wasn't~. |
| 一般疑問句 | Is he ~? | Was he ~? |
| 特殊疑問句 | 疑問句+Is he ~? | 疑問詞+Was he ~? |