如果要想了解EACH的用法.必須比較著看
each both either neither
both:兩個(gè)都(用于肯定)
each:每個(gè)(表個(gè)體)
Every:每個(gè)(表全體)
neither:兩個(gè)都不(用于否定)
either:1).或者(用于選擇)常與or 連用
2).也(表相同)(用于否定)
e.g.:
1.Both the students are girls.
2.Each student has a pen.
3.Neither the student is from London.
4.Either he or she has a pen.注：has是被she 限定的,意思就是說,動詞的形式與or 后面的主語一致.
例如,Either he or I have a pen.
He doesn't have a pen,she doesn't have,either.
（1）each具有名詞和形容詞的功能.
（2）each指兩個(gè)或兩個(gè)以上的人或事物中的“每個(gè)”.：
He gave a book to each of his parents.
他給他父母各送了一本書.
（3）each作為形容詞,修飾單數(shù)名詞,接單數(shù)動詞.作為代詞,單獨(dú)使用,接單數(shù)動詞；放在復(fù)數(shù)名詞和代詞后作同位語,接復(fù)數(shù)動詞.each of them后可接單數(shù)或復(fù)數(shù)動詞.如：
Each man carries his own bag.（修飾單數(shù)名詞）各人背自己的包.
We each have our own office.(作We的同位語)我們各有各的辦公室.
Each carries his own bag.(代詞)各人背自己的包.
Each of them are/is here.(代詞)他們每個(gè)人都在這兒.
（4）代表each的物主代詞可以用his,也可以用their.如：
Each carried their/his own bag.各人背他們/他自己的包.