1.(2017·江苏卷) ________is known to us all is that Want Meng got three golden medals in Vancouver Winter Olympics.
【解析】考查主语从句。what在主语从句中作is的主语。
【答案】What
2.(2017·北京卷) ________I want to tell you is the deep love and respect I have for my parents.
【答案】What
3.【2016·北京】24.Your support is important to our work. ________ you can do helps.
A. However B. Whoever C. Whatever D. Wherever
【答案】C
【解析】题目考查主语从句。helps是谓语，“________ you can do”是主语部分，即主语从句，在主语从句中，do后缺少宾语，表示“任何事情”，因此用whatever引导，故选C。
4.【2016·天津】11. The manager put forward a suggestion ____ we should have an assistant. There is too much work to do.
A. whether B. that C. which D. what
【答案】B
【解析】句意：经理提出一个建议，我们应该有个助手。有太多的工作要做。使用同位语从句说明suggestion的内容，而且同位语从句成分和意思都是完整的。用that引导，that不作成分，只是起着连接的作用。故选B。
5.【2016·北京】29. The most pleasant thing of the rainy season is ________ one can be entirely free from dust.
A. what B. that C. whether D. why
【答案】B
【解析】句意：雨季最令人愉悦的就是人们可以完全不再受到沙尘的困扰。i
s后跟从句作表语，即表语从句，表语从句不缺少主语、谓语和宾语，因此用that，that只起引导作用，故选B。
6. Even more upsetting was the fact the driver didn't stop afterward.
解析 考查同位语从句。the fact后面是同位语从句，要用that来引导。
答案 that
7.But，from I've heard，perhaps he worked too hard.
解析 考查宾语从句。从我听说的来看，也许他更努力些。介词from后是what引导的宾语从句，what作动词hear的宾语。
答案 what
8. Well，there is a rumor going around the head of the Department is leaving.
解析 考查同位语从句。有一个谣言说，部门的领导马上就要走了。that引导的是名词rumor的同位语从句。
答案 that
9. The easiest way to do this is to make a simple list of it means to be respectful at school.
解析 考查宾语从句。根据句子结构可知，此处为what引导宾语从句，在从句中作动词mean的宾语。
答案 what
10. There is a new market near my house.My mother often goes there and buys we need for our meals.
解析 考查宾语从句。我的妈妈经常去那买我们吃饭所需要的东西。what引导宾语从句作动词buy的宾语。
答案 what
11. One day，he came up with an idea he would pluck up all of his crop a few inches.
答案 that
12. is important is that we let others know we care about them.
解析 考查主语从句的引导词。根据句子结构可知，系动词is前的句子缺少主语，表示“重要的事情”要用what。
答案 What
13. Over the next several months，my professor taught me one story was so much better than the other.
解析 考查宾语从句的引导词。教授教给我的是为什么一个故事比另一个更好。根据句意可知此处要用why引导宾语从句。
答案 why
14. A study found girls who ate five or more family meals a week had a much healthier relationship with food in later life.
解析 考查宾语从句的引导词。谓语动词found后为宾语从句，宾语从句中不缺少成分，故要用that引导。
答案 that
15. Perhaps my mother had told me was deeply rooted in my mind.
解析 考查主语从句的引导词。妈妈说的话深深地扎根于我的思想中。系动词was前为主语从句，从句中缺少宾语，故要用what引导。
答案 what
易错起源1、名词性从句中连接词的正确选用
例1．—I wonder Mary has kept her figure after all these years.
—By working out every day.
答案 how
【名师点睛】
1.that引导名词性从句时，在从句中无意义，不作成分，只起到连接作用，在宾语从句中可省略。
He told me (that) he would leave soon.
2.what与出at在名词性从句中的区别。
Right:What he said was true.
这是一个主语从句，what在从句中作动词said的宾词，意思是:“……话”或“……事”，此句中不能用that。
That he came late made the teacher angry.
这个句子还是主语从句。从句中意思完整，所以用that来引导，起到一个标志作用。
易错起源2、宾语从句
例2．You have to know you're going if you are to plan the best way of getting there.
解析 句意：如果你要计划到达某地的最佳路线，你必须首先知道你想要去哪？where引导宾语从句，
在从句中用作地点状语。
答案 where
【名师点睛】
1.出at引导的宾语从句出at常用来引导宾语从句，通常that可以省略。
He has told me that he will go to Shanghaitomorrow．他已经告诉我他明天要去上海。
注意：在demand，order，suggest，decide等表示要求、命令、建议、决定等意义的动词后,hat从句 常用“(should)+动词原形”的结构。
2.wh-引导的宾语从句
I want to know what he has told you．我想知道他告诉了你什么。
【锦囊妙计，战胜自我】
形容词后所跟的宾语从句
某些动态形容词(afraid，confident，aware，certain，sure，doubtful等)在句中做表语时，后面可跟宾语从句。
例句:I am confident that I can get the job．我有信心我可以得到这份工作。
易错起源3、 that和wh-引导的主语从句
例3．I truly believe beauty comes from within.
解析 句意：我真的相信美来自人的内心。宾语从句意思完整只缺连接词，故用that。
答案 that
【名师点睛】
(1)that引导的主语从句
that引导的主语从句既可以放在句首也可以放在句末，在实际应用中常常采用it形式主语形式。
That he passed the English test is true.→
It is true that he passed the English test.
(2)形式主语的四个主要句型
It + be + 名词 + that从句
It is a pity that...可惜的是，用于此句型的名词还有fact／shame／honor／question等。
It + be + 形容词 + that从句
It is certain that...很肯定，可用于此句型的形容词还有clear／better／natural／important／neeessary.
It + be + 动词的过去分词 + that从句
It is said that...据说，可用于此句型的过去分词还有believed／known／reported等。
It + 不及物动词 + that从句
如: It seems that...好像是……似乎……
可用于此句型的不及物动词还有happen，appear等。
易错起源4、 表语从句、同位语从句
例4．A ship in harbor is safe, but that's not ships are built for.
答案 what
【名师点睛】
1.that引导的表语从句
基本结构:主语 + 系动词 + that从句例句:
The fact is that we have lost the game.
2.wh-疑问词引导的表语从句
That is why I tell you the news.那就是我为什么告诉你这个消息的原因。
3.从属连词as if,boecause,just as等引导的表语从句
It is because I have ever heard of the story.那是因为我曾经听说过这个故事。
【锦囊妙计，战胜自我】
同位语从句通常由that引导，可用于同位语从句的名词有advice，demand，doubt，fact，hope，idea， information，message，news，order，problem，promise， question，repuest，suggestion，truth，wish，word等。
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