具体问题具体分析了,当表示“必须,不得不”是是情态动词;当表示“需要”时,是行为动词。
(1)情态动词,“必须,不得不”
You needn't talk so loud.
你不必这么大声讲话。
Need you go so soon?
你非得这么快就走吗?
You needn't have told him the news; he knew it already.
你不必再告诉他这个消息,他已经知道了。
(2)作行为动词
need
[ni:d]
(常与to连用)
需要
Plant needs water.
植物需要水。
He needed all his charm to persuade her that it was not his fault.
他需要使出浑身解数来叫她相信那不是他的错。
My shirt needs a button.
我的衬衫需要一枚钮扣。
She's on holiday; she needed a change from work.
她正在度假,她需要放下工作改变一下生活。
These six kitchens are all needed when the plane is full of passengers.
这六个厨房在飞机载满旅客时都用得着。
You didn't need to tell him the news; it just made him sad.
你无需告诉他这一消息, 那只会使他悲哀。
温馨提示:答案为网友推荐,仅供参考