except表示“除……之外(不再有)”，指从整体中排除except所带的人或物，它前面常有all, every, any, no等及其复合词。如：

　　The students go to school every day except Saturday and Sunday.

　　除了星期六和星期天以外，学生们每天都上学。

　　We all went to visit the zoo except Li Lei.

　　除了李雷外，我们都去了动物园。

　　但在否定句中，except却不表排斥性。如：

　　She knows nothing except English. 它除了英语以外，什么也不懂。

　　Nobody came to see me except Jim. 除了吉姆，没有人来看我。

　　Besides表示“除了……之外(还有)”，它的意思是在原来的基础上加上besides所包括的人或物，其前常有other, another, any other, a few等词。如：

　　Do you know any other language besides German? 除了德语外，你还懂别的语言吗?

　　Li Lei also went to the park besides you. 除了你之外，李雷也去了公园。

　　练一练：

　　1、选用括号内恰当的介词填空。

　　1) What’s this _____( at, on, in ) English?

　　2) Christmas is _____ ( at, on, in ) the 25th of December.

　　3) The man ______ ( with, on, in ) black is Su Hai’s father.

　　4) He doesn’t do well _____ ( at, on, in ) PE.

　　5) Look at those birds ______ ( on, in ) the tree.

　　6) We are going to meet _______ ( at, on, in ) the bus stop ______( at, on, in ) half past ten.

　　7) Is there a cat ______ ( under, behind, in ) the door?

　　8) Helen’s writing paper is ______ ( in, in front of ) her computer.

　　9) We live _______ ( at, on, in ) a new house now.

　　10) Does it often rain ________ ( at, on, in ) spring there?

　　2、选择正确的答案

　　1) My father goes to work ______ his car.