疯豆-need
1.情态动词need
need和dare一样,作为情态动词时,主要用于否定句和疑问句,一般不用于肯定句中(在肯定句中常被must, have to, ought to, should等情态动词取代)。作为情态动词,它的词形只有need一种形式。
You needn*t return the book now. You can keep it till next week if you like. 你现在不必还书, 如果愿意,你可以下周还。(needn*t = don*t have to)
Need I hand in my homework now
我现在就要交家庭作业吗?
--- Need he finish the article next week
他要下个星期完成这篇文章吗?
--- Yes, he must.
是的,他必须完成。
--- No, he needn*t.
不,他不需要。(= he doesn*t have to)
2.行为动词need
need和dare一样,也可以作行为动词,可用于肯定句、否定句和疑问句中。行为动词need有人称和数的变化。
Plant needs water.
植物需要水。
My shirt needs a button.
我的衬衫需要一枚钮扣。
My car needs repairing.
我的车该修理了。
He has grown up. We don*t need to worry about him.
他已经长大了,我们不必为他担心。
You don*t need to buy so many things for the picnic.
你不必为这次野餐买这么多东西。
Patience is needed for that job.
干那工作,需要耐心。
提示:
Need作为情态动态时,不要用于肯定句中。
【误】She need do her homework by herself. (need作为情态动词时,不用于肯定句中)
【正】She needs to do her homework by herself.
她该独立完成家庭作业。
1.情态动词need
need和dare一样,作为情态动词时,主要用于否定句和疑问句,一般不用于肯定句中(在肯定句中常被must, have to, ought to, should等情态动词取代)。作为情态动词,它的词形只有need一种形式。
You needn*t return the book now. You can keep it till next week if you like. 你现在不必还书, 如果愿意,你可以下周还。(needn*t = don*t have to)
Need I hand in my homework now
我现在就要交家庭作业吗?
--- Need he finish the article next week
他要下个星期完成这篇文章吗?
--- Yes, he must.
是的,他必须完成。
--- No, he needn*t.
不,他不需要。(= he doesn*t have to)
2.行为动词need
need和dare一样,也可以作行为动词,可用于肯定句、否定句和疑问句中。行为动词need有人称和数的变化。
Plant needs water.
植物需要水。
My shirt needs a button.
我的衬衫需要一枚钮扣。
My car needs repairing.
我的车该修理了。
He has grown up. We don*t need to worry about him.
他已经长大了,我们不必为他担心。
You don*t need to buy so many things for the picnic.
你不必为这次野餐买这么多东西。
Patience is needed for that job.
干那工作,需要耐心。
提示:
Need作为情态动态时,不要用于肯定句中。
【误】She need do her homework by herself. (need作为情态动词时,不用于肯定句中)
【正】She needs to do her homework by herself.
她该独立完成家庭作业。