疑问意义 if,whether (1)I don't know if/whether it is interesting.

(2)He doesn't care if it isn't a fine day.

(3)I wonder whether he will come or not.

(4)Everything depends on whether we have enough money. if和whether一般可以互换,但(2)　　　　　　　　　,不能用if;从句是否定句时一般用if。 特殊疑

问意义 who,whom,which,whose,what,when,where,why,etc. (1)Please tell me who will go with you.

(2)He isn't aware of what a terrible thing he has done.

(3)I wonder why he hasn't called me.

(4)She always thinks of how she can work well.

(5)I wonder where he is going with his classmates. 宾语从句可作及物动词的宾语,也可作(3)的宾语。宾语从句用(4)语序。 注1 We must make it clear that anybody who breaks the law will be punished. 如果宾语是复合宾语,则用(5)　　　　作形式宾语,将从句放后。 注2 (1)We don't think you are right.

(2)I don't believe he will do so. think,believe,imagine,suppose等后的宾语从句,(6)　　　　　　中。 　　

　　续表

种类 关联词 例句 说明 表语

从句 连词 that,whether,as if (1)The problem is (that)they can't get there early.

(2)It looks as if it is going to rain. 在非正式的文体中that可以省略。