The idea that he gave surprises many people.他提出的观点令许多人感到吃惊。 (that在从句中作gave的宾语。)
3．从句是否有疑问的意义
Do you remember the day when I told you that I loved you? (when引导的从句不表示疑问，所以这是一个定语从句。) I have asked the question why it was true just now. (why引导的从句表示疑问，所以这是一个同位语从句。) 4．主语从句需注意的问题 (1)语序：连接词＋陈述句
主语从句和宾语从句等其他名词性从句一样要采用陈述句语序，而非疑问语序。 When we shall have our sports meet has not been decided. 什么时候开运动会还没定下来。 (2)时态与谓语动词的单复数
如果主句是过去的时态(包括一般过去时，过去进行时)，那么从句的时态一般要用相应的过去的某种时态。一个主语从句作主语，谓语动词一般用单数，但谓语动词用单数还是复数，不可一概而论，而要视句子的意义而定。
What I need is money.我所需要的是钱。 What I need are books.我所需要的是书。
如果由and连接两个或两个以上的主语从句作主语时，谓语动词用复数；由两个或多个连接词引导一个主语从句，谓语动词用单数。
When they will start and where they go have not been decided yet. 他们什么时候动身以及去哪里还没定下来。
When and where the meeting will begin has not been decided. 会议什么时间以及在哪里举行还没定下来。 (3)引导词that的省略
从属连词that无意义，不担当任何成分，只起引导作用，在单个宾语从句中的that可省略：
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①引导主语从句、同位语从句、表语从句的连词that不可省略。 That she was chosen made us very happy. 她被选中了，这件事使我们非常高兴。
②it作形式宾语的宾语从句中引导词that不可省略。 I think it necessary that you should read aloud. 我认为你有必要大声朗读。
5. if与whether引导主语从句的异同
如果用it作形式主语时，if可以引导主语从句，放在句末；如果主语从句放在句首时，不能用if引导，要用whether。
It is doubtful if he has received your letter. 他是否收到了你的信件令人怀疑。 Whether it is true remains a problem. 这件事是否真实还仍然是个问题。 6．whatever/whoever/whichever的功用
whatever/whoever/whichever在主语从句中不含疑问意义，引导主语从句，并在从句中作主语、宾语、表语等。whatever＝anything that；whoever＝anyone who；whichever ＝ anything which。
Whoever breaks the law should be punished. ＝ Anyone who breaks the law should be punished. 不管谁犯法都应受到惩罚。
牛刀小试
完成句子
1．You are saying that everyone should be equal, and this is __where__I disagree. 2．I think father would like to know __what__ I've been up to so far, so I decided to send him a quick note.
3．I've learnt __that,__no matter what happens and how bad __it__seems today, life goes on and it will be better tomorrow.
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4．—It's wrong for a student to follow __whatever__his teachers say. —It's true.I can't agree more.
5．Determination is a kind of basic quality and is __what__it takes to do jobs well.
6.__What__ surprised me most was __that__ they had finished it so quickly. 7．It has been proved again and again __that__ frequent advertising increases product sales.
8．—It remains to be seen __whether__ the plan can be put into practice. —It depends on your determination.
9．If you take a job as a journalist, it goes without saying __that__ sometimes you'll have to work at weekends.
10．When I try to understand __what__ it is that prevents so many Americans from being as happy as one might expect, it seems to me __that__ there are quite a few causes.
11．The fact__that__she works hard is well known to us all.
12．I've come from the government with a message__that__the meeting won't be held tomorrow.
13．A warm thought suddenly came to me __that__ I might use the pocket money to buy some flowers for my mother's birthday.
14．I can't stand the terrible noise__that__she is crying loudly. 15．He often asked me the question__whether__the work was worth doing.
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