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tooto的肯定用法(tooto表肯定)

导语:To Do? To Be? 兼论肯定句和辅助动词

(I)肯定句

肯定或陈述一个事实,是最常见的句子形式。在He goes, It rains, The king is pleased, I have been away这些简单的句子中,我们就是在做肯定或陈述。

英语中,动词是肯定句中最重要的词。因此,在He is a thief中,真正重要的肯定词是is,在He sells his house中,肯定词是动词sells。在肯定句中,动词is和sell代表了两大类动词,即:

(1)Do 类动词(做什么),

(2)Be 类动词(是什么,处于……情况、状态)。

实际上,几乎全部英语动词都被看作Do类动词,仅有动词to be的不同形式(am, is, are, was, were)被看作是Be类动词。这是一种典型的英式思维,对中国学生来说颇为陌生。

因此,我们可以用动词do(及其不同形式,did和does)替代几乎任何动词。例如,在回答这个问题时,我们通常说Yes, he does. 这适用于任何Do类动词。仔细阅读下列表述:

(A)Do 类动词(做什么)

I believe in him. Indeed I do.

Jack comes to borrow money again. He always does.

Did you meet him?----Yes, I did.

Did you speak to him?----No, I didn&39;s papers?----Please do.

I don&39;t.

You are the only one that likes my writing. Others don&39;t think he is.

Some of them are asleep, and some are not.

I suspected that he was in love, and now I know he is.

You say that she is the daughter of a cook. Well, what if she is?

I admire great speakers. I would like to be one myself.

(II)其他辅助动词(Can, Will, Have, Must等)

如上所述,我们已经看到动词do和be用来表示肯定,否定或疑问。To do和To be被称为辅助动词。事实上,我们主要依靠这些辅助动词来构成各种肯定、否定和疑问句。除此之外,还有其他辅助动词如have, will, can, may, must, dare, need等,被用来达到与do和be同样的目的。重复阅读下列句子(can, must等重读):

Can he or can he not get the things ready?----Yes, he can.

My wife does not want me to go, but I must.

You are free to go. You may if you want to.

He thinks I have not yet prepared my lesson, but I have.

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