宾语从句是名词性从句的一种。在主从复合句中充当宾语，位于及物动词、介词或复合谓语之后的从句称为宾语从句。宾语从句分为三类：动词的宾语从句，介词的宾语从句和形容词的宾语从句。那么你知道宾语从句的用法吗?下面跟着学习啦小编一起来学习一下，希望对大家的学习有所帮助!
一、宾语从句的用法
在复合句中作主句的宾语，引导词有：
连词：that (that 常可省略),whether, if
代词：who, whose, what ,which
副词：when ,where, how, why 等。
(一)that引导的宾语从句(在非正式场合that可以省略)
可跟that从句做宾语的动词有：
say, think, insist, wish, hope, demand, imagine, wonder, know, suppose, see, believe, agree, admit, deny, expect, explain, order, command, feel, dream, suggest, hear, mean, notice, prefer, request, require, propose, declare, report等。
例句：The boy believes that he will travel through space to other planets.
注意事项：当主句谓语动词是 think, believe, suppose, expect 等词，而宾语从句的意思是否定时，常把否定转移至主句表示。
例句：I don’t think it is right for him to treat you like that.
在以下情况中that不能省略
当句中的动词后接多于两个由that引导的宾语从句时，第一个that可省，但后面的that不可省。
例句：He said (that) you were too young to understand the matter and that he was asked not to tell you.
当主句的谓语动词与that宾语从句之间有插入语时，that一般不可省。
例句：Just then I noticed, for the first time, that our master was wearing his fine green coat and his black silk cap.
当that从句是双宾语中的直接宾语时，that不可省。
例句：I can’t tell him that his mother died.
注意事项：许多带复合宾语的句子，that引导的宾语从句经常移到句子后部，而用it作形式宾语。
例句：I find it necessary that we should do the homework on time.
(二)由whether,if 引导的宾语从句
由whether(if)引导的宾语从句，实际上是一般疑问句演变而来的。意思是“是否”。宾语从句要用陈述句语序。一般说来，在宾语从句中whether与if可以互换使用，但在特殊情况下if与whether是不能互换的。
例句：I wonder whether(if) they will come to our party.
只能用whether，不能用if引导的宾语从句
在带to的不定式前
例句：We decided whether to walk there.
在介词的后面
例句：I’m thinking of whether we should go to see the film.
在动词后面的宾语从句时
例句：We discussed whether we had a sports meeting next week
直接与or not连用时
例句：I can’t say whether or not thet can come on time.
只能用if不能用whether引导的宾语从句
if引导条件状语从句，意为“如果”
例句：The students will go on a picnic if it is sunny.
if引导否定概念的宾语从句时
例句：He asked if I didn’t come to school yesterday.
引导状语从句even if(即使)和as if(好象)时
例句：He talks as if he has known all about it.
(三)连接代词和连接副词引导的宾语从句
这样的宾语从句实际上是由特殊疑问句变化而来的，宾语从句要用陈述句语序。用于这种结构的动词常常是：see, say, tell, ask, answer, know, decide, show, find out, imagine, suggest, doubt, wonder, discover, understand, inform, advise等。
英语中的连接代词有：who,whom,whose,which,what,在句中担任主语、宾语、定语或者表语。
例句：Can you tell me whom you are waiting for?
英语中的连接副词有：when,where,why,how，在句中担任状语的成分。
例句：None of us knows where these new parts can be bought.
二、练习题
( ) 1. What did Mike say? He said ____________________.
A. if you are free the next week B. what colour was itC. the weather is fine D. summer comes after spring
( ) 2. Tom asked my friend ________________.
A. where was he from B. that the earth is bigger than the moonC. when did he come back D. not to be so angry
( ) 3. Let me tell you __________________.
A. how much is the car B. how much does the car cost C. how much did I pay for the car D. how much I spent on the car
( ) 4. Peter knew_______.A. whether he has finished reading the book B. why the boy had so many questions
C. there were 12 months in a year D. when they will leave for Paris
( )5. Could you tell me ___________?
A. where do you live B. who you are waiting for C. who were you waiting for D. where you live in
( )6. I can't understand ____the boy alone. A. why she left B. why did she leave C. why she had leftD. why had she left
( )7. She told me the sun ______ in the east. A. rise B. rose C. rises D. had risen
( )8.I don't know ________ up so early last Sunday.A. why did he get B.why he gets C.why does he get D. why he got
( )9. The manager came up to see _________
A. what was the matter B. what the matter was C. what the matter is D. what's the matter
( )10. He asked his father ___. A. where it happens B. where did it happen C. how it happened D. how did it happen
( )11. No one tells us______, so we need your help.
A. how we should do B. what should we do C. how to do it D. what to do it
( )12. Could you please teach me _______ the computer.
A. how check B. to check C. how to check D. to how checking
( )13.They don't know _______their parents are. A that B what C why D which
( )14. ─Where do you think ______ he _____ the TV set? ─ Sorry, I've no idea.
A./, bought B. has, bought C. did, buy D. did bought
( ) 15. Our homework has changed a lot. Who can tell _____ it would be like in _____ five years.
A. how, another B. what, more C. how ,other D. what, another