166. like, as

　　like相似关系，但并不等同;

　　as同一关系，两者实为一体 例：Don't treat me as a child. (In fact, I'm a child.)

　　167. after, in (表时间)

　　after接时间点;例：after 7:00

　　in接时间段 例;in five minutes

　　168. between, among

　　between两者之间，三者或三者以上两两之间;例：Switzerland lies between France, Germany, Australia and Italy.

　　among三者或三者以上之间

　　169. after, behind (表位置)

　　after强调次序的先后;

　　behind强调物体静态位置的前后 例：There are many trees behind the house.

　　170. since, for (完成时间状语)

　　since接点时间或一句话;例：since 3:00

　　for接一段时间 例：for three years