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英语陈述句变一般疑问句方法?

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将英语陈述句转换为一般疑问句的方法可分为以下三类,根据谓语动词的类型选择相应规则:

一、谓语动词为be动词(am/is/are/was/were)

规则:

直接将be动词提到句首,句末改为问号。

示例

- 陈述句:She is a teacher.

一般疑问句: Is she a teacher?

- 陈述句:They were playing basketball.

一般疑问句: Were they playing basketball?

二、谓语动词为情态动词(can/may/must/will/would/should)

规则:

将情态动词提前至句首,句末改为问号。

示例

- 陈述句:He can swim.

一般疑问句: Can he swim?

- 陈述句:They will go to school tomorrow.

一般疑问句: Will they go to school tomorrow?

三、谓语动词为行为动词(非be/情态动词)

规则:

在句首添加助动词do/does/did,然后将谓语动词还原为原形,句末加问号。 - 现在时:主语为第一/第二人称用do,第三人称单数用does

- 过去时:无论主语是谁,均使用did

示例

- 陈述句:He likes reading books.

一般疑问句: Does he like reading books?

- 陈述句:We had a great time last night.

一般疑问句: Did we have a great time last night?

四、注意事项

人称变化:

- 第一人称(I/we)变为第二人称(you)

- 第三人称单数(he/she/it)保持不变

其他变化:

- 将some改为any(如:There is a book → Are there any books?)

- 短语需保持原样(如:in the morning → in the morning)

通过以上规则,可系统地将陈述句转换为一般疑问句。