each在句中可以作定语，主语、宾语、同位语、状语等。
Each student hashis own dictionary. （形容词，定语）
Each hashis good point. （代词，主语）
Our head teacher had a talk with each of us .（代词，宾语）
The students eachhave a desk . （代词，同位语）
The children can have a bag each. （副词，状语）
** both (两者都)，either(两者中任何一个)，neither (两者都不)。以上词使用范围为两个人或物。Neither of the two boys is clever.both与复数连用，either与单数连用。Both of the boys are clever.
Either of the two boys is clever.
There are flowers on both sides of the street.=There are flowers on either/each side of the street.
Either way is right.
** all (所有的，全部的人或物)，any (任何一个)，none (都不)。以上词使用范围为三者以上。All the flowers are gone.
I don?t like any of the flowers.I like none of the flowers.注意：all与none用法一样。跟单数名词，用单数动词；跟复数名词，用复数动词。All of the students are there. All (of) the milk is there.
another, other, others, the other, the others:
1. another, the other ―另一个”
I don‘t like this one. Will you please show me another
one I have two cats. Oneis black, the otheris white. He has four cats. Oneis white, anotheris black, the other twoare brown. * another ten minutes=ten more minutes2. Others = Other + 名词复数; the others= the other+名词复数
Mike is always ready to help others. There are a lot of people here. Someare boating, and
othersare dancing. There are twenty teachers in our school. 8 are men
teachers, the others/the other 12are women teachers. 3. other 和else的区别: --What other things do you want? --What else do you want? –Nothing else.
so和such 的区别:
1. so是副词，修饰形容词和副词；而such是形容词，修饰名词。*它们后面接单数可数名词时，词序不同。
so的词序为：so+ adj. + a（an）+ n.
such的词序为：such +a（an）+adj. + n.
so nice a coat =such a nice coat 这么漂亮的一件外套so interesting a book = such an interesting book
*后面接复数名词或不可数名词时，只能用such，而不能用so.如：such beautiful flowers 这么美丽的花
such clever children 如此聪明的孩子
*但是，复数名词或不可数名词前有many，few，much，little修饰时，只能用so而不能用such，这是一种固定用法。如：
so many books 这么多书so few people 这么少的人so much money 那么多的钱so little milk 那么少的牛奶
** such a little boy / such little birds ( little 此时为小的意思)