衛(wèi)生類職稱英語考試語法：

動詞的種類

動詞是指表示動作和狀態(tài)的詞。

動詞可分為：及物動詞、不及物動詞、系動詞、助動詞和情態(tài)動詞。

1.及物動詞

He is writing a letter.

Is mell flowers.

2.不及物動詞

We lived in London.

The window has opened.

3.系動詞

He is a student.

That sounds good.

The child seems unhappy about it.

4.助動詞

助動詞通常有 be,do,have。如：

Do come in,please.

I don't feel very well.

We have just finished the work.

當be,do,have用作普通動詞時，它們有一定的詞匯意義。如：

I have one sister.

You can do it as you like.

5.情態(tài)助動詞

情態(tài)動詞表示說話人對所說的話的態(tài)度和看法。

Can she speak Arabic?

It may well rain.

People shouldn't ill-treat animals.

Will you help me,please?