1. common adj. 共同的，普遍的；常见的
常用结构：in common 共有，公用(在句中多作状语）
have nothing/little/a lot/something in common (with) sb. 与某人没有/许多/有些共同之处
in common with 和……一样 common sense/knowledge 常识 common welfare 公共福利
易混辨析common/ordinary/usual/normal
common 指“共有的，公共的；共同的；常见的”。反义词为rare。 common作“普通的”讲时可与ordinary换用。如“普通人”也可以说成common people。
ordinary 意为“普通的，平淡无奇的”，指没有什么特别的地方。
usual 意为“平常的，通常的，一向的”，含惯例之意。 normal 意为“正常的”。
Jane and I have nothing in common. =I have nothing in common with Jane. 我与简毫无共同之处。
The problems are common to all societies. 这些问题是所有社会的通病。
In common with many young people, he prefers pop songs. 和许多年轻人一样，他喜欢流行歌曲。
He is in ordinary clothes. 他穿着平常的衣服。
We meet every day at the usual place. 我们每天在往常那个地方见面。
单项填空: Harry visited the bookstore every week. He became such a customer that the bookseller gave him some books as presents. A. common B. normal C. usual D. average
