1、both表示两者“都”(强调全体).
eg．Her parents are both doctors．她父母都是医生.
Both of them are doctors．他俩都是医生.
They both like potatoes．他俩喜欢吃土豆.
2、all“全体／大家／一切”用于三者以上,也可接不可数名词.
eg．That’s all for today．今天到此为止.
All of us are from China．我们都来自中国.
All the food is delicious．所有的食物都很好吃.
3、either“两者之一”,用于两者(强调个体).
eg．The two coats are cheap,so you can choose either of them．那两件外套不贵,你可以随便挑一件.
4、neither“两个都不”,用于否定两者.
eg.Neither Of the books is／are so interesting.那两本书没一本好看的.
5、none“没有一个人／物”用于否定三者或三者以上的可数名{司.
eg.None Of them has／have been to Japan．他们都没去过日本.
I like none of the books．这些书我全都不喜欢.
6、neither和none表示完全否定；all,both,each和every(含every的复合词)等与not连用时表示部分否定.
eg．I don’t know all of you．我不完全认识你们.
Not everyone Of us know how to go there．不是我们每个人都知道怎样去那儿.
7、no one的用法
No one has traveled farther than to the moon．没有人旅行远过月球.
8、any+单数名词表示“随便哪一个”或“任何一个”.
Come any day you like．你哪天来都行.
Tom is taller than any other student in his class．汤姆比他班上其他任何一个学生都高.
