need to do 和 need do的区别

来源：学生作业帮编辑：拍题作业网作业帮分类：英语作业时间：2024/04/29 10:43:37

need有2种词性
1,情态动词就是你说的need do
2,实意动词就是need to do
这两个都可以用,都是正确的,所以在肯定句中看不出区别
一般做题是从否定句中看出来的
1,needn't do
2,doesn't/don't need to do
这两种都是正确的
以下是一些干扰选项,都是错误的
needn't to do
doesn't/don't need do
因为它们混淆了情态动词与实意动词
needn't 是把need 看作情态动词,后面就不能再用to了
而dosen't/don't则把need看作实意动词,而后面加do,又相互矛盾.

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