6. She hasn’t decided ________ to go.

5. We don’t know _________ or not she was ready.

4. The question ________ it is right or wrong depends on situation.

3. She doubts　 ___ she will be successful .

2. ________ it is true remains a question.

1. The question is ____ people will buy it.

I heard it said that she had gone abroad.

She made it a duty that she takes care of her sick mother.

2)介词 /动词+ it　 + that的特殊结构(it 作引导词)

You may depend on it that they’ll support you.

I take it that you don’t agree with me.

You can count on it that he is very smart.

I shall see to it that he is taken good care of

(例题)

考点3、名词性从句中what与 that的区别

that引导的名词性从句表事实，在从句中不充当句子成分;what引导的名词性从句表疑问，在句中充当主语、宾语或表语。

I want to know what you are going to do tomorrow.

I know that you’re better now.

(例题)-I think it is going to be a big problem. 　

-Yes, it could be. 　

-I wonder ______ we can do about it. (北京 2002春季) 　

A、if B、how C、what D、that 　

答案C。本题考察名词性从句的连接词的用法。wonder后面应跟宾语从句，而从句中的谓语动词do是及物动词，可见从句缺少一个代替宾语的成分，我们可以用排除法排除不作成分的if和that，再排除引导方式状语的how，答案是C，句子的意思是“我们能就此做些什么”。

考点4、名词性从句的语序应用陈述语序：主语+谓语

(例题)He asked ____ for a violin．(NMET1992) 　

　　　 A. did I pay how much B. I paid how much C. how much did I pay D. how much I paid 　

　答案：D。名词性从句应用陈述语序。

考点5、宾语从句的时态呼应

当主句动词是现在时，从句根据自身的句子情况，而使用不同时态。当主句动词是过去

(could/ would除外)，从句则要用相应的过去时态，如一般过去时，过去进行时，过去将来时，过去完成时等；当从句表示的是客观真理，科学原理，自然现象，则从句仍用一般现在时态。　　

I know (that) he will study English next year. (从句用一般将来时) 　

I know he has studied English since 1998. (从句用现在完成时) 　

The teacher told us that Tom had left us for America．(从句用过去完成时) 　

(例题)The teacher told us that the earth　　　　 　round the sun.

　 A. goes　　 B. went　　 C. is going　 D. had gone

答案：A. 当从句表示的是客观真理，科学原理，自然现象，则从句仍用一般现在时态。

考点6、that 不可省略的情况

1)　 由连接词that引导宾语从句时，that在句中不担任任何成分，在口语或非正式的文体中常被省去，但如从句是并列句时,第二个或以后几个分句前的that不能省略。

2)　 作介词but、except、in等的宾语时不可省。

3)　 在主+谓+it(形式宾语)+宾补+that从句(真正宾语) 的句型中不省略。

4)　 that引导的同位语从句、表语从句和主语从句。

We must make it clear that we mean what we say.

He has told me(that)he will go to Shanghai tomorrow. 　

We must never think (that) we are good in everything and that others are good in nothing.　

I know nothing about him except that he is from the north.

(例题)　　　　　 　made them happy.

　A. Their son had passed the entrance exam　　 B. That their son had passed the entrance exam

　C. What their son had passed the entrance exam D. Why their son had passed the entrance exam

答案：B. 该题考查的是名词性从句的引导词，主语从句意思完整，因此用that。that引导的主语从句时，that 不能省略。

考点7、同位语从句和定语从句的区别：

that作为关系代词，可以引导定语从句，在定语从句中充当主语、宾语，在从句中作宾语时可以省略； that引导同位语从句时，起连词的作用，没有实际意义，不充当句子成分，一般不能省略。 　

I had no idea that you were here．(that引导同位语从句，不能省略) 　

Have you got the idea(that)this book gives you of life in ancient Greece？

(that引导定语从句，作give的直接宾语，可以省略)

考点8、只用whether的情况，不用if 的情况：

1)在动词不定式之前　　　　　　　　 I can’t decide whether to stay here .

2)在whether …or not 的固定搭配中　 I want to know whether it’s good news or not .

3)在介词后，只能用whether。　　　　　 His father is worried about whether he lose his work .　

4)同位语从句、表语从句；主语从句位于句首及宾语从句放在句首表示强调时

They are investigating the question whether the man is trustworthy(同位语)

　Whether the plan is feasible remains to be proved. (主语从句位于句首)

The point is whether we should lend him the money. (表语)

Whether this is true or not, I really don’t know. 　 (宾语从句放在句首表示强调)　

(活学活用)用Whether or if填空：

考点1、主语从句常用it作形式主语，而把主语从句置于句末。常用句型如下： 　

(1)It + be + 名词(an honor, a good thing, a pity, no surprise,no wonder,etc.) + that从句 　　　　　　 It is a pity that you didn’t go to see the film.

(2)It + be + 形容词(natural,true,obvious,god,wonderful,likely,possible,certain,etc.) + that从句 　　　　

　 　It is certain that she will do well in her exam

(3)It + be +动词的过去分词(believed,said,reported,thought,expected,arranged,etc.) + that从句　　　 It is said that he has arrived in Beijing.　

(4)It + seem/happen/appear等不及物动词 + that 从句

It happened that she was out that day.　

(例题)___ is a fact that English is being accepted as an international language. (NMET 1995) 　

A. There　　 B. This　　　　 C. That　　　　　 D. It 　

答案D。当名词从句在句中作主语时，为避免句子头重脚轻，常用it作形式主语置于句首，而将真正的主语从句放在句尾。此时it只起先行引导作用，本身无实义。此句也可以改写为：That English is being accepted as an international language is a fact. 　

考点2、it 在宾语从句中的运用:

1)动词 + it + 宾补(形容词、过去分词或名词) + that 结构

I think it important that we should keep calm.

He’s made it clear that he won’t agree to the plan.

We find it necessary that we practise English daily.

7、His eyes stare at what is left of the brother’s dinner on table. ( Unit 3, Book3)

6、The thought that they could cross the whole continent was exciting. ( Unit 5, Book3)