needn't与don't needYou ____ a bus.The bookshop is near here.A.need B.not need C.need not D.don't need为什么选D,不选C?

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needn't与don't needYou ____ a bus.The bookshop is near here.A.need B.not need C.need not D.don't need为什么选D,不选C?
needn't与don't need
You ____ a bus.The bookshop is near here.
A.need B.not need C.need not D.don't need
为什么选D,不选C?

needn't与don't needYou ____ a bus.The bookshop is near here.A.need B.not need C.need not D.don't need为什么选D,不选C?
原因：
1.need 可以用作实义动词,意思是“需要”,这时其后是宾语,其否定句与一般动词没什么区别.
2.need 也可以用作情态动词,意思也是“需要”,但这时其后是动词,就像can,must一样其否定形式是直接在need后加not.
3.本句后是名词,说明need在句中是实义动词.所以尽管是否定句,其否定词也不能直接加在need上.

这是英语中的否定前置~~
任何动词的否定在一般情况下都是这样的~~

need 直接+not,说明need 是情态动词.
need 变成don't need,说明他是实意动词.
这里说:你需要一两车."需要"是实意动词.所以选D.
特别注意,句子中没有其他的动词,need就只能是实意动词,不能单独做情态动词.

neednot所表达的意思是从根本上不需要 dontneed是可需要可不需要…题中坐公共汽车是可需要可不需要的

need 只有在做助词的时候才有need not的用法。在这句话里，后面跟的是名次，need做动词用。所以需要助动词否定在前。

needn't意思是没有必要
don't need是不需要

You need a bus 否定自然是 You do not need a bus.
没有need not 这种说法

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