need的用法
一、need作情态动词的用法：（1）need用作情态动词时表“必须、必要”,后直接跟动词原型,need+do，否定needn’t +do
（2）need无人称、数的变化（第三人称单数不加s）,也没有非谓语形式（不定式、分词）.
（3）注意:need用作情态动词时常用于否定句和疑问句中.
（4）must引导的一般疑问句的否定回答必须使用needn't.肯定回答用must.
二、need作实义动词的用法:
1、need + something(名词） 需要某物
2、need to do something 需要做某事
3、need doing = need to be done 需要……
4、need somebody to do something 需要某人做某事
need用作情态动词时，后接动词原形，此时其没有人称和数的变化，通常用于否定句和疑问句中。need用作实义动词时，有各种时态的变化，可用于各种句式；其宾语可以是名词、动名词、动词不定式以及代词。构成其否定句和疑问句时要借助助动词do
资料拓展
双语例句
1、You need to touch up the poem.
你需要给这首诗润色一下。
2、That is what I need.
这正是我需要的。
3、You should never deny assistance to those who need it.
你不应当拒绝帮助那些需要你帮助的人。
4、I need not expatiate on the question any further.
我不需要进一步阐述这个问题。
5、He stammered out his need.
他结结巴巴地说出了他的需要。
need作实义动词的用法:
1、need + something(名词）需要某物
2、need to do something 需要做某事
3、need doing = need to be done 需要……
4、need somebody to do something 需要某人做某事
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