将英语陈述句转换为一般疑问句的基本规则如下：

一、基本规则

有be动词（am/is/are/was/were）或情态动词（can/may/must/should/will）时

将be动词或情态动词提前至句首，句末加问号。 - 例如：

- 陈述句：He is a student.

- 转换后： Is he a student？

有实义动词（如do, does, did）时

在句首添加助动词do/does/did，动词恢复原形。 - 例如：

- 陈述句：She speaks English very well.

- 转换后： Does she speak English very well？

特殊时态

- 过去时：

用did提前，动词原形。 - 例如：He played football yesterday. → Did he play football yesterday？

- 完成时：用have/has提前，过去分词。 - 例如：They have finished their homework. → Have they finished their homework？

- 被动语态：用be提前，过去分词。 - 例如：The cake was eaten by Tom. → Was the cake eaten by Tom？

二、注意事项

人称变化

- 第一人称（I）变为第二人称（you）；

- 第三人称单数（he/she/it）保持不变，其他人称（we/they）用复数主语。

缩写形式

- 否定回答中，do/does/did后接not，可缩写为don't/don't/didn't。

特殊动词

- 动词be的变形需根据主语变化（如am→are），第三人称单数用is；

- 动词have/has的否定为hasn't。

三、示例汇总

| 陈述句 | 转换后 | 回答示例 |

|--------|--------|----------|

| This is my book. | Is this my book？ | Yes, it is. / No, it isn't. |

| Can she swim？ | Can she swim？ | Yes, she can. / No, she can't. |

| They did their homework. | Did they do their homework？ | Yes, they did. / No, they didn't. |

通过以上规则，可系统地将陈述句转换为一般疑问句。若需进一步巩固，建议结合练习题进行实战演练。