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否定副词有那些语法意义,作用?

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否定副词有那些语法意义,作用?
肯定否定副词
1.肯定否定副词表示肯定或否定意义,如:yes(是的),no(不),not(不),never(绝不),surely(当然地),certainly(一定地)等,主要修饰全句或动词.
2.肯定副词与否定副词不能同时出现.
Is he not a student?
他不是学生吗?
(误)Yes,he is not a student.
是的,他不是学生.
(正)No,he is not a student.
是的,他不是学生.
3.否定副词必须接在第一个助动词后.
中文:你昨天不该问这个问题.
(误)You should have not asked this question yesterday.
(正)You should not have asked this question yesterday.
4.否定副词如never,scarcely在句首,句子要用倒装形式,表示加强语气.
scarcely does he wear glasses though he is near-sighted.
虽然他近视,但他很少戴眼镜.