need在什么情况下作情态动词 什么情况作行为动词
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need在什么情况下作情态动词 什么情况作行为动词
need在什么情况下作情态动词 什么情况作行为动词
need在什么情况下作情态动词 什么情况作行为动词
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.
如果need后面可以直接接动词的话,它此时就作情态动词。比如:I needn't go to school tomorrow.
如果need后面接to do时,它此时就作实义动词。比如:I need to go to shcool tomorrow.
分析句子的结构,有动词的句子,NEED是情态动词,如果没有其他动词了,而且有需要的意思,那一定是动词。