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新概念英语第一册语法:一般过去时

英语网整理 | 2012-09-04
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    一般过去时   表示过去发生的动作或事件,常和表示过去的时间状语连用,如yesterday, last night, the day before yesterday, 3 days ago...   含有be动词的句子,将be动词变为过去式。am, is的过去式为was, are的过去式为were:   I was at the butcher's.   You were a student a year ago.   The teacher was very beautiful ten years ago.   ★变疑问句将be动词移动到句首   Were you at the butcher's?   Were you a student a year ago?   Was the teacher very beautiful ten years ago?   ★变否定句在be动词后面加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.  
    ★特殊疑问句   What did you do?(必背)   不含有be动词的句子,将动词变为过去式:   I finished my homework yesterday.   The boy went to a restaurant.   The Sawyers lived at King Street a year ago.   ★变疑问句在句首加did,动词变为原型   Did you finish your homework yesterday?   Did the boy go to a restaurant?   Did the Sawyers live at King Street a year ago?   ★变否定句在主语和动词之间加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.
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