1. 比较级

　　注意只有同类事物才可进行比较。

　　如：My eyes are bigger than hers.Your school bag is heavier than mine. My computer is nicer than Nancy’s. My brother is stronger than me.

　　2.have, has

　　表示某人有(has用于第三人称单数);There is/ are;

　　There was/ were 表示某地存在有

　　注意There be 句型的就近原则

　　单数或不可数用there is /was;

　　复数用there are/ were.

　　3. 本身就是复数的词

　　眼镜glasses; 耳机earphones; 鞋shoes;裤子trousers等词本身是复数。

　　如：My glasses were on the chair just now.

　　但如果表示这双，这副，一双的时候用单数

　　如：There is a pair of chopsticks on the plate. This pair of earphones is for you.