Do和Does:如何正确使用这些助动词

Do和Does:回答问题

使用 do does 回答以 yes no 开头的疑问句。

do和does

Do 用于回答以第一人称单数、第二人称单数或复数开始的疑问句。例如:

> Do I look okay?

> Yes, you do.

> Do you like this song?

> Yes, we do.

Does 用于回答以第三人称单数开始的疑问句。例如:

> Does she sing?

> Yes, she does.

Do和Does:动词用法

在疑问句、否定句和强调句中, do does 可以用作 助动词

Do 用于第一人称单数、第二人称单数或复数的疑问句和否定句。例如:

> Do you know where I can buy stamps?

> I don't know.

Does 用于第三人称单数的疑问句和否定句。例如:

> Does he go to school every day?

> He doesn't.

Do和Does:强调用法

Do does 还可以用来强调动词。

Do 用于否定句和强调陈述句。例如:

> I don't like this movie.

> I do like this movie!

Does 用于疑问句和强调陈述句。例如:

> Does she really think that?

> She does think that!

其他用法:do和does

除上述规则外, do does 还有其他用法:

Do 可以用作模态动词,表示必要性或许可。例如:

> You do need to eat healthier.

Do 可以用作替代动词,表示重复或习惯性行为。例如:

> I do homework every night.

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