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英语中怎么改为祈使句

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英语中改为祈使句的方法如下:

一、基本规则

肯定句

直接去掉主语(通常为you),以动词原形开头。例如:

- You must clean it. → Clean it.

- You should go to school. → Go to school.

否定句

在动词原形前加否定词Don't。例如:

- You shouldn't do this. → Don't do this.

- You must stop. → Stop.

二、特殊结构

系动词+表语:

如Keep quiet! → Be quiet!

行为动词开头:如Open the door! → Open the door.

三、注意事项

祈使句通常省略主语you,直接表达命令或请求。- 否定形式统一使用Don't,无需变化情态动词。 示例

原句:You need to finish your homework. → 祈使句:Finish your homework.

原句:You must apologize. → 祈使句:Apologize.