专题09 名词性从句1. One day，he came up with an idea he would pluck up all of his crop a few inches.解析考查同位语从句的引导词。

因后面是一个完整的句子，且该句是说明空格前面an idea的具体内容，所以是同位语从句。

从句结构完整，故要用that引导。

答案that2. is important is that we let others know we care about them.答案What3. 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why4. 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that5. 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what6. 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that7.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what8. 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that9. The easiest way to do this is to make a simple list of it mea ns 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what10. There is a new market near my house.My mother often goes there and buys we need fo r 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。

H e 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 h e 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.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。

1. Li Bai, a great Chinese poet, was born is known to the public, but some won't accept it.解析句意：李白，一个伟大的中国诗人，其出生地是众所周知的，但也有一些人不接受它。

从句where Li Bai was born作该句子的主语。

答案Where2. we understand things has a lot to do with what we feel.解析句意：我们怎样理解事物与我们所感觉到的东西有很大关系。

分析句子结构可知“ what we understand things”为主语从句，结合句意可知要用how。

答案How3. If you swim in a river or lake, be sure to investigate is below the water surface.Often there are rocks or branches hidden in the water.解析句意：如果你在河里或湖里游泳的话，务必调查清楚水面之下有什么。

水中经常隐藏着石头或树枝。

根据后面rocks and branches可知，此处要用what来引导。

答案what4. We must find out Karl is coming, so we can book a room for him.解析句意：我们必须知道他什么时候来，以便我们能给他预定房间。

根据后面的so we can book a room for him可知这里指时间，故用when引导。

答案when5. Reading her biography，I was lost in admiration for Doris Lessing had achieved in literature.答案what6. The exhibition tells us we should do something to stop air pollution.解析考查宾语从句。

句意：这个展览告诉了我们，我们为什么要阻止空气污染。

宾语从句缺少状语，根据意义为why。

答案why7.Exactly the potato was introduced into Europe is uncertain，but it was probably around 1565.解析考查名词性从句。