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陈述句的否定形式借助助动词did 后，动词过去式played要 还原源自文库动词原行play.
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• 二.把下列句子改成相应时态
1. He usually gets up early in the morning. But ______________________ late today.
2. She usually works from 8 a.m. to 5 p.m. But yesterday __________________________
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句型变化 1.系动词be
陈述句(肯定): She was a doctor two years ago. 陈述句(否定): She was not a doctor two years ago. 一般疑问句: Was she a doctor two years ago?
肯定回答：Yes, she was. 否定回答：No, she wasn’t. 特殊疑问句: When was she a doctor?
in 1990
two days ago 等
3.频度副词：often always 等
4.例句：I got up at 7:00 yesterday. My father was at work yesterday afternoon. He always went to work by bus last year.
Presented by Rachel
November 8th, 2015
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• 我昨天去购物了。 • I went shopping yesterday.
• 他昨天晚上没有看电视。 • He did not watch TV last night.
• 你过去是个老师吗？ • Were you a teacher?
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• 一.改错
• 1. He watch TV here ten minutes ago. 他十分钟前在这里看电视。
watch在这这个动作是十分钟前发生的，属于过去时，所以 动词里是错误的，我们要把它改成过去式watched。
。2. They didn’t played basketball yesterday. 昨天，他们没有打篮球。
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• 1. look • 4. carry • 7. call • 10.like • 13.dance • 16.stay
2. live 5. hope 8. finish 11.play 14.cry 17.cook
3. stop 6. trip 9. want 12.watch 15.plan 18.invent
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• 一过去时时有两种形式： • 1.系动词be的一般过去时的形式:was(am, is), were(are) • was用于第一人称单数和第三人称单数形式的主语之后； • were用于所有其他的人称和数。 例句： He was born in 1997.
There were many mice in that room. I was so tired. • 2.实意动词过去式的形式:did(do), stopped(stop), finished(finish), studied(study), hoped(hope) 例句：She studied very hard to go to the college. They didn’t hope that the car stopped.
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• 不规则动词的变化规律不明显，需要平时 多加记忆。
• 1.do—did 2. is/am—was 3.are—were • 4.have—had 5.come—came 6.put—put • 7.make—made 8.drive—drove 9.get—got • 10.eat—ate 11.dig—dug 12.dig—dug • …………
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动词一般过去时，表示过去发生的事； be用was或用were, have,has变had； 谓语动词过去式，过去时间坐标志； 一般动词加-ed，若是特殊得硬记。 否定句很简单，主语之后didn’t添； 疑问句也不难，did放在主语前； 如果谓语之前有did，谓语动词需还原； 动词若是was,were,否定就把not添。
3. _____________________ on Sundays. They went to the park last Monday.
4. _____________________at breakfast. But yesterday he didn’t read the newspaper.
• 为什么她去年离开了学校？ Why did she leave the school?
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• 一般过去时
• 1.定义： 1）表示过去某个时间发生的动作或存在的状态，常和 表示过去的时间状语连用；2）也表示过去经常或反复发生的动 作，常和表示频度的时间状语连用。
• 标志性状语
2.时间状语：yesterday last night
2. 实意动词过去式
陈述句(肯定): They went to the park last Monday. 陈述句(否定): They didn’t go to the park last Monday. 一般疑问句: Did they go to the park last Monday?
肯定回答：Yes, they did. 否定回答：No, they didn’t. 特殊疑问句: When did they go to the park?
5. I usually go shopping on weekends. But this weekend __________________________
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• 三.句型转换
1.I was so sleepy .(变为否定句) ______________________
2.He liked playing computer games.(变为否定句) _____________________
