1.名词性从句是什么？分为？
2.名词性从句考连接词的选择。那么连接词有哪些？怎么用？
连词/ 连接副词：
连接代词：
比较：连接副词、连接代词
Can you tell me how I can get to the railway station?
I will tell you what our school looks like.
如何使用各个连接词？
(which几乎不出现，which在名词性(主、宾、表)从句中的用法
Which boy she likes best is still unknown/is still a mystery)
whether,if 区别：
主语从句中，句首只能用whether.主语从句后置时，与表示选择意义的or连用，只能用whether. It does not matter whether …or…
it作形式主语，真正主语在后边时，if/whether均可
宾语从句时一般可通用，但if不能与not连用：I don’t know whether he is coming or not.
表语从句、同位语从句只能用whether. The problem is whether the meeting will be held.
介词后只能用whether It depends on whether you can do the work well.
有无ever的区分
____leaves the room last ought to turn off the light.
____will give us a talk is unknown to us all.
3. 主语从句 –e.g. That she will do well in her exam is certain息息相关的意思.
常用it作形式主语It is certain that she will do well in her exam.
4.宾语从句：–e.g. Do you know that he has joined the army?
that可以被省略。it 可以作形式宾语，但此时that 不能被省略。(定语从句什么时候关系词可以被省略)
He has made it clear that he will not give in.
介宾结构，在介词后作宾语。We are worring about what we should do next.
5.表语从句(句子作为表语。说明主语是什么或者怎么样)
–e.g. My decision is that all of us are to t out at 6 o’clock tomorrow.
--The problem is whether he will come.
--The problem is where we can stay tonight.
醋溜包菜
（除了上述连接词之外，有时还会有becau as if /as though(少见)）
（2013 安徽） From space, the earth looks blue. This is____about 71% of its surface is
covered by water.
A． why | B． how | C． becau | D． whether |
| | | |
便潜血6.同位语从句(that whether, how, when, why, where)
定语从句与同位语从句的区分：
It is a fact that you can’t deny. It is a fact that she has done her best.
如何区分判断？
有时候修饰的词不一样，同位语从句前边的一般是抽象的名词(thought, fact, hope,desire, suggestion,idea, news, question, possibility, conclusion, message, doubt, answer, reply, belief…)，而定语从句是更偏向于实际的（如果这一点无法区别，转入下一条）;
由于同位语从句是说明被修饰名词具体内容的，所以它可以转化为同位名词的表语，而同位语从句与被它限定的词常紧紧挨在一起。并且可以通过句意判断。
e.g.I looked through the window of our hotel, from____I saw a man taking photos in the yard
寓意好的词
同位语从句
区别：what/how/whether 不可以引导定语从句，但可以引导同位语从句。
that引导词在同位语从句中不做成分，也就是说同位语从句的从句是完整的,但是在此处that不可省略。
典型同位语：Have no idea I have no idea why he did that.
区分定语从句与主语从句、宾语从句、表语从句的区别：
看主句缺不缺成分.
比较：
Maria has written two novels, both of______ have been made into television ries.
As John said, life is______ happens to you while you are busy making other plans.
wh-ever与no matter wh-的区别？
wh-ever既可以引导名词性从句，又可以引导让步状语从句。
no matter wh-只可以引导让步状语从句。孤单的英语
Whatever I said, he wouldn’t listen to me.=No matter what I said, he wouldn't listen to me.He wouldn’t believe whatever I said.
难点：
与强调句一起。
强调句胆红素偏高是什么原因
陈述句：It is/was + 被强调部分+that/who+句子剩余部分。
It is Jim who teaches me English.
一般疑问句：Was/is it+被强调部分+that/who+句子剩余部分。
特殊疑问句：特殊疑问词+is/was it +that+句子的剩余部分。
（以下例题，仅供分析）
e.g. I have no idea___go there with her.
A. it is why that he will B.why is it that he will
C.why it is that he will D. it is why will he that
区分强调句和名从(仅供分析)：
1.--My key is gone. Have you en it anywhere?
--Oh,it is in the room_____we had a talk last night.
A.that B.which C.where D.what
2.--Did Vickey come back early last night?
--Yes. It was not yet nine o’clock______she arrived home.
想谈恋爱了
A.before B.when C.until D.that
3.It is still a complete mystery______caud the accident.
A.what B.how C. that D.where
1. I truly believe____beauty comes from within.
A. that B. where C. what D. why
2.____we understand things has a lot to do with what we feel.
A. where B. How C. Why D. When
3.We must find out____Karl is coming, so we can book a room for him.
A. when B. how C. where D. why
4. 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.
A. what B. who C. that D. whoever
5.____Li Bai was born is known to the public, but some won’t accept it.地中海建筑风格
A. That B.Why C. Where D. How
6You have to know____you’re going if you are to plan the best way of getting there.
A. what B. that C. where D. who
7.A ship in harbor is safe, but that’s not____ships are built for.
A. what B. whom C.why D. when
