宾语从句的特殊疑问词有什么说全点,再讲讲用法,

哈哈,我今天刚讲了宾语从句哦.
关系词1：that(引导陈述句,没有意义,不作句子成分,做宾语时可省略）
例：I think that they will win the game.
关系词2：if/whether（引导一般疑问句,表是否,不作句子成分,不可省略）
例：I don't know whether (if) my mother will buy a computer.
whether和if一些时候可互换,只能用whether的情况：
1、后面有or,或者or not时,比如 He asked whether they would come on time or not.
2、后跟不定式时,比如 I don't know whether to accept the invitation.
3、当用if会引起歧义时,因为if可作如果讲,所以如果用if句子会发生歧义时只用whether.
4、介词后面跟whether,比如：They are talking about whether the sports meeting will be put off.
关系代词：who,whom,whose,which,whoever,whichever等
如：He asked me who was talking to me the other day.
They didn't know whose phone was on the table.
关系副词：where,when,why
如：I was wondering where we can get enough money.
Please tell me when you will arrive.
以how开头的词组,如how often,how long,how far,how many..
如：Could you please tell me how many apples are in the box.
还有注意形式宾语,一般出现在复合宾语中,也就是有宾语补足语的时候,
如：I think it strange that he has failed the exam.
最后还要注意宾语从句中的时态问题,就是说如果主句时态是现在时（一般现在时,现在进行时,或者现在完成时）时,从句时态不受影响；如果主句时态是过去时（一般过去时,过去进行时,过去完成时）,从句时态要后退一步,也就是一般现在时退为一般过去时,一般过去时退为过去完成时.
当然还有宾语从句中的虚拟语气了.
全部手打的哦,今天下午刚跟学生讲,所以当自己复习一遍,不懂欢迎再问.