宾语从句(The Object Clause)在复合句中作主句的宾语。宾语从句通常由下面一些词引导。

　　1、 由that引导(that在口语或非正式文体中常省略)。

　　2、 由what , when , where, which, who, how ,why等连接代词或连接副词引导。

　　3、 由连词whether或if引导(口语中常用if)。

　　应注意的几个问题：

　　1、 宾语从句可放在形容词后。常用形式是“be+形容词+宾语从句”

　　e.g. I am glad you like it .

　　2、 宾语从句与主句时态的一致。

　　1)主句是现在(或将来)时态时，宾语从句可根据实际需要用不同的时态。

　　如：He says Mary is playing with the cat .

　　He says Mary often plays with the cat.

　　He says Mary will play with the cat.

　　I think he left yesterday morning.

　　2) 主句时态是一般过去时，从句要用过去时态的某种形式。

　　He said Mary was playing with the cat.

　　He said he hoped to be back soon..

　　3) 当从句所表示的是客观事实或客观真理时，该从句都用一般现在时，不用过去时。

　　如：He said light travels much faster than sound.

　　3、 宾语从句中的否定转移。如果主句谓语动词是think , believe suppose 等，而从句的意思是否定的，这时主句的谓语动词用否定式，从句用肯定式。如：

　　I don’t think you are right. 我认为你不对。

　　4、 将普通的特殊疑问句变成宾语从句时，从句的语序要由疑问句变成陈述句的语序。

　　When will the meeting begin?-------I want to know when the meeting will begin.

　　5、 将普通的一般疑问句变成宾语从句时，则用if /whether连接，同时变成陈述句语序。

　　Are you an English teacher ?-------He asked if I was an English teacher.

　　在下列情况下只能用whether

　　1) 介词后的宾语从句 I’m thinking about whether we should go fishing.

　　2) 宾语从句提前时 Whether this is true or not, I can’t say.

　　3) 直接与or not连用时 I don’t know whether or not he was ready.

　　4) 在带to 的动词不定式前 She hasn’t decided whether to go or not.

　　if也可引导条件状语从句，表示“如果”(主将从现，主过从过)。比较：

　　I don’t know if he will come. If he comes ,I will tell you.

　　6、在变宾语从句时，要注意以下几点。1)连接词 2)人称 3)语序 4)时态 5)标点

　　练习

　　1. 用所给动词的适当形式填空。

　　1)I know that the young man ______________(come) to the village every Saturday.

　　2). We have learnt that the earth ________________(go) around the sun..

　　3) He was afraid that he ______________________(forget) his Chinese.

　　4)I am sure that she ________________(like ) this book.

　　5)He told me that he ________________(tell) a story when I came in .

　　6)Could you tell me when you _________________(leave) England, last summer or last autumn?

　　7)She asked me if she _____________(can, borrow) the science book.

　　8)I can’t remember when he _____________________(come) last night.

　　9)He said he _______________( fly) to Shanghai .

　　10)She is happy that she ____________________(find) the lost purse .

　　11)I hear that he __________________(enjoy) playing football very much.

　　12)Has the teacher decided who ______________(take ) part in the sports meeting?

　　2.用适当的连接词填空。

　　1) The mother likes saying __________________she has a good daughter.

　　2) They told me __________________ they could finish the work before ten o’clock.

　　3) The boy wanted to know _______________they could go boating.

　　4) Mr Green asked ______________would give the message to Miss Wang.

　　5) Dad wanted to know ______________the tennis match would be.

　　6) She hasn’t decided ______________language she is going to choose.

　　7) It’s well-known _________________Lu Xun was a great writer.

　　8) Do you know _____________Doctor King live?

　　9) Lucy wants to ask Li Lei _______he goes to school by bus every day.

　　10) He doesn’t know ___________she will go to the USA tomorrow.

　　11) I hope ____________everybody at school are all well.

　　12) Lily asked ______________there were any cheaper ones.

　　13) I didn’t know _______________ the books were.

　　14) Do you know _______________time I get up every day.

　　15) Could you tell me _____________grade you are in ?

　　16) The boy didn’t know _______________was his new English teacher.

　　17) The teacher asked _____________Li Lei was late for school.

　　18) I was afraid __________________he might fail his exam.

　　19) Can you tell me _______________you got home.

　　20) I didn’t know _______________book it was.

　　3.仿照例子，改写句子。

　　It’s going to rain soon. ( I thought)

　　-------I thought (that ) it was going to rain soon.

　　1) The film is very interesting. (Everyone says)

　　2) He often helps his classmates with their English. (All of us know )

　　3) He is going to start work at once .( The teacher said)

　　4) Li Lei has just arrived. ( I heard )

　　5) The earth moves around the sun. ( He told the students)

　　6) Why was Miss Zhao not pleased? ( Please tell me )

　　7) Does he run fast? ( I didn’t know )

　　8) How will they go to London? ( We wanted to know )

　　9) Who won first prize last year? ( Miss Black asked )

　　10) Where are they going to plant trees? (Lucy doesn’t know )

　　11) Is the skirt nice ? ( The assistant asked me )

　　12) What present can we get ? ( Can you guess)

　　13) Which book is hers? (Do you know )

　　14) Can Tom do the work ? ( He asked )

　　15) They are having a meeting. ( The man said )

　　4.译成英语。

　　1) 我想我能帮助你。

　　2) 我恐怕我明天可能会晚点到。

　　3) 你知道他在鞋厂工作了多久了吗?

　　4) 我不知道他昨天是否穿了那件新衬衫。

　　5) 妈妈问那把雨伞在哪里。

　　6) 他告诉我他的父母会来看他。

　　7) 老师问我是否完成了物理作业。

　　8) 今晚是否会下雨，我不确定。

　　9) 你能告诉我为什么他每天都起地这么迟吗?

　　10) 我不记得以前是否看过这部电影。

　　11) 她说昨天她的丈夫起程去法国了。

　　12) 警察发现在这场交通事故中一名男子受了重伤。