need什么sth ??

来源:百度知道 编辑:UC知道 时间:2024/05/27 15:24:33
need什么sth ??

need的用法

■作情态动词:通常用在疑问句、否定句中,或与条件句、whether, hardly, nobody等连用。need do sth 如:

Need he go so soon?他这么快就要走吗?

He needn’t go. 他不必走。

If she wants anything, she need only ask. 她想要什麽, 只需说一声就行。

He wondered whether they need go there. 他不知道他们是否需要去那里。

Nobody need be afraid of catching the disease. 谁都不用害怕能得这种病.

注意:

1. 因need不能用于肯定句,因此肯定回答要用must。如:

—Need I stay here any longer?我需要在这呆下去吗?

—No, you needn’t. 不需要。

—Yes, you must. 是的,需要呆下去。

2. need have done的否定式或疑问式,表示“本来不必做某事,但事实上却做了”。如:

She needn’t have come in person a call would have been enough. 她本不必亲自来——打个电话来就足可以了。

Need you have paid so much?你当时真须要付那麽多钱吗?

■作行为动词:可用于疑问句、否定句和肯定句。need to do sth 如:

Does he need to go so soon?他这么快就要走吗?

He doesn’t need to go. 他不需要走。

He needs to go. 他想走(from need to do sth,need do sth. needn`t do sth和don`t need有什么不同! need to do sth,need do sth. needn`t do sth和don`t need有什么不同. need doing sth是什么意思???? need to do sth和need doing sth 的区别 need to do sth 和need do sth的区别 有没有need sth. done 或者 sth. need done “need doing sth”“need to do sth”哪里不同? need sth 和 need to do sth 的区别 英语语法中,need sb ?sth form sth from sth什么意思啊?