12　but的用法　Track12

 

but的用法特点：
1） but作关系代词，相当于that... not ，who... not , whom... not ，在句中作主语或宾语，可指人也可指物。
2）尽管定语从句形式上肯定，但在意义上是否定的。
3）常与具有否定意义的主句连用。
4）通常只引导限定性定语从句。
a.There is no man but errors.（= There is no man who doesn't err. but作主语）　人必犯错。
b.There are very few but admire his talents.（= There are very few who don't admire his talents. but作主语）很少有人不赞赏他的才干。
c.There are very few people in this club but he knows.（= There are very few people in this club whom he doesn't know. but作宾语）