将英语陈述句变为一般疑问句，主要遵循以下步骤：

识别关键动词

be动词：am, is, are, was, were

助动词：do, does, did

情态动词：can, could, may, might, must, will, would, shall, should, have, had

调整句子结构

将这些关键动词置于句首。

将主语和这些关键动词调换位置。

句末加上问号（？）。

示例

陈述句

She is a doctor.

转换为一般疑问句

Is she a doctor？

陈述句

They have already left.

转换为一般疑问句

Have they already left？

陈述句

He studies English every day.

转换为一般疑问句

Does he study English every day？

陈述句

We are students.

转换为一般疑问句

Are we students？

陈述句

They are books.

转换为一般疑问句

Are they books？

陈述句

He is a teacher.

转换为一般疑问句

Is he a teacher？

陈述句

She is a nurse.

转换为一般疑问句

Is she a nurse？

陈述句

I am a boy.

转换为一般疑问句

Are you a boy？

陈述句

This is my aunt.

转换为一般疑问句

Is this your aunt？

陈述句

It is a dog.

转换为一般疑问句

Is this a dog？

陈述句

They go to school by bike.

转换为一般疑问句

Do they go to school by bike？

陈述句

Bill gets up at 6:30 every day.

转换为一般疑问句

Does Bill get up at 6:30 every day？

通过以上步骤，你可以轻松地将英语陈述句转换为一般疑问句。希望这些示例对你有所帮助!