完全否定

英语中的完全否定可以用not, no, never, none, nobody, nothing, neither...nor, nowhere等表示。如：

1.Nothing is difficult for him. 没什么难得到他。

2.Mary never has beef. 玛丽从来不吃牛肉。

3.Neither answer is correct. 两种答案都不对。

部分否定

英语中表示“全体”意义的代词，形容词或副词。如：all, both, altogether, always, completely, every day, everyone, everything, everywhere, every, everybody, many, often等与not搭配时，通常表示部分否定，意思是“并非都是”、“不完全是”、“不是每个都是”等。例如：

1.Not everyone was amused by these April Fool s jokes.

并不是每个人都觉得这些玩笑有趣。

2.Food likes and dislikes do not always seem related to nutrition.

对食物的好恶似乎并不总与营养有关。

比较：

Nothing makes him happy.

(全部否定)没有哪一件事情让他开心。

Not everything makes him happy.

(部分否定)并不是每一件事都让他开心。

None of the students went to visit the science museum last week.

(完全否定)上周没有一个学生去参观科技博物馆。

Not all of the students went to visit the science museum last week.

(部分否定)上周并不是所有的学生都去参观了科技博物馆。