名词性从句知识点总结
名词性从句
名词性从句相当于名词，可分别作主句的主语、表语、宾语和同位语。因此，名词性从句厅分为主语从句、表语从句、宾语从句和同位从句。
（一）引导名词性从句的连接词
1、连接代词：who, whose, whom, what, which。有词义，在从句中担任成分，如主语、表语、宾语、或定语等。
2、连接副词：when, where, why, how。有词义，在从句中担任成分，作状语。
3、连接词：that, whether, if, as if。that 无词义，在从句中不担任成分，有时可省略；if (whether), as if虽有词义，但在从句中不担任成分。
注意：
1、连接代词与连接副词在句中不再是疑问句，因而从句中谓语不用疑问式。连接代词与连接副词在从句充当句子成分，连接词whether 和if（是否），as if（好象）在从句中不充当句子成分，只起连接作用。根据句义，如果连接代词与连接副词，whether、if 和as if都用不上时，才用that作连接词（that本身无任何含义）。
2、不可省略的连词：
（1）介词后的连词
（2）引导主语从句和同位语从句的连词不可省略。
That she was chosen made us very happy.
We heard the news that our team had won.
（二）主语从句
1、主语从句在复合句作主语。
e.g. Who will go is not important.
2、用it作形式主语，主语从句放在句末。
e.g. It doesn’t matter so much whether you will come or not.
主要句型有：
（1）It+be+形容词+that从句。
It is probable that he told her everything. 很可能他把一切都告诉她了。
（2）It+be+名词词组(no wonder, an honour, a good thing, a pity, no surprise, etc.)+that从句。It’s no surprise that our team should have won the game. 我们没赢这场比赛真意外。
（3）It+be+过去分词+that从句。
It is said that Mr. Green has arrived in Beijing. 据说格林先生已经到了北京。
（4）It+seem, happen等不及物动词及短语+that从句。
It seems that Alice is not coming to the party at all. Alice似乎不来参加晚会。
（5）It+doesn’t matter (makes no difference, etc.)+连接代词或连接副词引起的主语从句。
It doesn’t matter whether she will come or not. 她是否来这无关紧要。
It makes no difference where we shall have the meeting. 我们在哪里开会毫无区别。
3、that引导主语从句时，不能省略。
e.g. That he suddenly fell ill last week made us surprised.
4、当主语从句作主语时，谓语动词一般用第三人称单数，下面这个句型例外。
What we need is more time and money.
What we need are many more books.
5、if不能用在主语从句中，而是用whether
Whether he left (or not) is unknown
6、引导主语从句的关联词有三类：
(1)从属连词that。
That they were in truth sisters was clear from the facial resemblance between them.
很明显，她们确是亲姐妹，她们的脸型很相似。
(2)从属连词whether。如：
Whether he’ll come here isn’t clear. 他是否会来这里还不清楚。
(3)连接代词who, whom, whose, what, which, whoever, whatever, whichever
连接副词where, when, how, why。如：
What she did is not yet known. 她干了什么尚不清楚。
How this happened is not clear to anyone. 这事怎样发生的，谁也不清楚。
Whoever comes is welcome. 不论谁来都欢迎。
Wherever you are is my home ---- my only home. 你所在的任何地方就是我的家----我唯一的家。
注意：连接代词whoever, whatever, whichever等引导主语从句的含义
Whoever comes will be welcome. (whoever=the person who) 来的人将受到欢迎。
Whatever he did was right. (whatever=the thing that) 他所做的事情是正确的。
Whichever of you comes in will receive a prize. (whichever=anyone of you who) 你们当中不论哪个进来将会得到奖励。
（三）表语从句
1、表语从句在复合句中作表语，位于系动词之后。
e.g. The question was who could go there.
注意：连系动词“appear, look, seem”的两个常用句型
It seems/appears that….
It looks/seems as if/as though……(与事实相符用陈述语气，与事实相反用虚拟语气)
2、引导表语从句的连接词that有时可省去。
e.g. My idea is (that) we can get more comrades to help in the work.
3、引导表语从句的关联词的种类：
(1)从属连词that。如：
The trouble is that I have lost his address. 麻烦是我把他的地址丢了。
(2)从属连词whether, as, as if。如：
He looked just as he had looked ten years before. 他看起来还与十年前一样。
The question is whether they will be able to help us. 问题是他们是否能帮我们。
注意：从属连词if一般不用来引导表语从句，但as if却可引导表语从句，如：
All this was over twenty years ago, but it\'s as if it was only yesterday.
这都是20多年前的事了，但宛如昨天一样。
能跟表语从句的谓语动词一般为系动词be, seem, look等。如：
It looked as if it was going to rain. 看起来天要下雨了。
(3)连接代词who, whom, whose, what, which, whoever, whatever, whichever
连接副词where, when, how, why。
如：The problem is who we can get to replace her. 问题是我们能找到谁去替换她呢。
The question is how he did it. 问题是他是如何做此事的。
That was what she did this morning on reaching the attic. 那就是她今晨上了阁楼干的。
注意：连词because可引导表语从句。
because 与why在引导表语从句的区别：
eg：I think it is because you are doing too much. 我想这是因为你做得太多。
（because后面加原因）
I think it is the reason why he was so angry. 我想这就是他如此生气的原因。
（why后面加结果）
（四）宾语从句
1、宾语从句在复合句中作宾语。引导宾语从句的连词that一般可省略。
e.g. I hope (that) everything is all right.
2、介词宾语从句：介词之后的宾语从句，不可用which或if连接，要分别用what或whether。
e.g. I’m interested in whether you’ve finished the work..
I’m interested in what you’ve said.
Your success will largely depend upon what you do and how you do it.
你是否成功将主要取决于你做什么和怎样做。
3、whether与if都可以引导宾语从句，常可互换。但下面情况不能互换。
①宾语从句是否定句时，只用if，不用whether。
e.g. I wonder if it doesn’t rain.
②用if 会引起误解，就要用whether。
e.g. Please let me know whether you want to go.（此句如果把whether改成if，容易当成条件句理解）
③宾语从句中的whether 与or not直接连用，就不能换成if；不直接连用，可换。
e.g. I don’t know whether or not the report is true.
I don’t know whether/ if the report is true or not.
④介词后的宾语从句要用whether引导。whether 可与不定式连用。whether也可引导主语从句、表语从句、同位语从句，还可引导让步状语从句，以上均不能换成if。但引导条件从句时，只能用if，而不能用whether。
e.g. It depends on whether we have enough time.
They don’t know whether to go there.
Please come to see me if you have time.
注意：区别if引导的宾语从句和条件状语从句
I don’t know if he will come.
If he comes, I’ll let you know.
4、宾语从句的时态变化规律：
宾语从句时态与主句相呼应，但宾语从句表示的是客观真理或普遍现象除外
(1)当主句是一般现在时态时，从句可根据需要用任何时态。
(2)当主句是一般过去时态时，从句只能使用过去范围内的任何时态。但客观真理除外。如：The teacher said that the earth goes round the sun. 老师说地球绕着太阳运行。
5、当主语是I, we ，主句用think, believe, suppose, expect, imagine五个动词时，用否定转移
I think he will win the game.
（否定句）I don’t think he will win the game.
对应的反义疑问句：I don’t think he will win the game, will he?
6、引导宾语从句的关联词有三类：
(1)从属连词that。
He told us that he felt ill. 他对我们说他感到不舒服
注意：that在引导宾语从句时也并不是任何情况下都可以省略。在以下情况下，that不能省略。
①and或but连接两个或多个宾语从句时，可以省略第一个连词that，放在an或者but的后面的that不能省略。
Everybody could see what happened and that Tom was frightened.
大家都会看出所发生的事情并知道Tom非常害怕。
②that引导的宾语从句作介词宾语时，that不能省略。
I know nothing about him except that he is from the south
对他我一无所知，只知道他是南方人。
.③that从句位于句首时，that不可省略。
That he ever said such a thing I simply don’t believe.
我简直不相信他曾说过这样的话。
④主句谓语动词与that从句之间有插入语，that不可省略。
We decided, in view of his special circumstances, that we would admit him for a probationary period.
鉴于他的特殊情况，我们决定应允他一段试用期。
⑤当宾语从句后带宾补时，要用“主语+谓语+it +宾补+that-clause, that不可省略
I think it certain that she will do well in her exam.
(2)从属连词if/whether。
I doubt whether he will succeed. 我怀疑他是否会成功。
I don’t know if you can help me. 我不知道你能否帮助我。
(3)连接代词who, whom, whose, what, which, whoever, whatever, whichever
连接副词where, when, how, why。
Who or what he was, Martin never learned. 他是什么人？他是干什么的？马丁根本不知道。
I wonder what he’s writing to me about. 我不知道他要给我写信说什么事。
I’ll tell you why I asked you to come. 我会告诉你我为什么要你来。
You may do what you will. 你可做任何你想做的事。
（五）同位语从句
1、同位语从句在句中作某一名词的同位语，一般位于该名词（如：news, fact, idea, suggestion, promise，thought, question, reply, report, remark等）之后，说明该名词的具体内容。
e.g. I have no idea when he will be back.
The fact that he had not said anything surprised everybody.
2、that引导的同位语从句与定语从句的区别：
在同位语从句中：that不可以省略，不作成分;定语从句的关系代词that在定语从句作成分，作宾语时可以省略
We are interested in the news that some foreigners would visit our school.
We are interested in the news that he told us.
3、when, where引导的同位语从句与定语从句的区别：
在定语从句中，when, where前有分别表示时间、地点的先行词；而在同位语从句中无此对应关系
They have no idea at all where he has gone.(同位语从句)
Go and get your coat. It’s in the place where you left it.(定语从句)
4、引导宾语从句的关联词有三类：
（1）关联词多用从属连词that。
Where did you get the idea that I could not come? 你在哪儿听说我不能来？
（2）同位语从句偶尔由从属连词whether引导。
I have no idea whether he’ll come or not. 我不知道他是否来。
注意：There is no doubt that he will come.
There is doubt whether he will come.
There is no possibility that….
（3）连接代词who, which, what和连接副词where, when, why, how亦可引导同位语从句。
The question who should do the work requires consideration.
谁该干这项工作，这个问题需要考虑。
We haven't yet settled the question where we are going to spend our summer vacation.
到哪儿去度暑假，这个问题我们还没有决定。
It is a question how he did it. 那是一个他如何做了此事的问题。
名词性从句重点与难点
一、that从句作主语和宾语时，常用it作形式主语，将从句放在句末
e.g. It doesn’t matter so much whether y ou will come or not.
She has seen to it that all the children are well taken care of.
二、that引导名词性从句的省略情况
1、that引导主语从句、表语从句、同位语从句时，不能省略。
e.g. That he suddenly fell ill last week made us surprised.
2、that引导宾语从句时一般可省略，但在以下几种情况中不能省略。
1）当that从句和主句谓语动词之间有插入词语或者从句主语之间有插入语时不能省略；2）当that 从句与另一名词性从句并列作宾语时不能省略；
3）当that作介词宾语时不能省略。
e.g. He judged that, because he was a child, he did not understand wine
Everyone knew what happened and that she was worried.
The reason lies in that she works harder than the others do.
三、名词性从句中的语序
名词性从句中一律使用陈序语气。
e.g. He asked how much I paid for the violin.
四、名词性从句中的时态呼应
在名词性从句中，谓语动词的时态要与主句谓语动词的时态相一致。
e.g. As soon as he comes back, I’ll tell him when you will come and see him.
He kept looking at her, wondering whether he had seen her somewhere.
Can you make sure where Alice has put the gold ring?
五、名词性从句中虚拟语气的使用情况
1、在表示“命令、建议、坚持、要求”的名词性从句中，要用“should+动词原形”形式，should可以省略。
e.g. I made a suggestion that he (should) go there at once.
I suggested that he (should) go there at once.
The suggestion was that he (should) go there at once.
2、wish引导的宾语从句中要用虚拟语气，分与现在、过去、将来相反三种情况。
e.g. I wish I were ten years younger.
I wish you had posted the letter yesterday.
I wish I would try again.
3、在句型“It + is/was + adj.+主语从句”中，如果形容词是important, strange, natural, necessary 等，从句谓语部分要用“should+动词原形”形式，should可以省略。
e.g. It’s strange that he (should) think so.
It is necessary that he (should) go there at once.
六、引导同位语从句与定语从句的that的区别
同位语从句中的连词that只起连接作用，不充当任何句子成分且不能省略，同位语从句一般放在有具体含义的名词后，用以解释名词的含义或内容；而定语从句中的关系代词that在从句中充当主语或宾语，在充当宾语时常可省略，定语从句是对先行词的限定和修饰。
e.g. They expressed the hope that they would come to visit China again.
The hope she expressed is that they would come to visit China again.
七、引导名词性从句的that和what的区别
that 引导名词性从句时，在从句中不充当任何句子成分，也没有任何含义，只起连接作用, 且在宾语从句中有时可省略；而what引导名词性从句时，在从句中充当主语、宾语、表语或定语。
e.g. That he said so made us angry .
What he said at the meeting made us angry.
China is no longer what it used to be.
八、疑问词 + ever和no matter + 疑问词的区别
1、疑问词 + ever既可引导名词性从句，又可引导让步状语从句。
e.g. Whoever breaks the rule must be punished.
Whoever breaks the rule, he must be punished.
2、no matter + 疑问词只能引导让步状语从句。
e.g. No matter who breaks the rule, he must be punished.
No matter what you do, you must do it well.
注意：who与whoever的区别
who是“谁”的意思，表示具有疑问，who相当于anyone who“无论谁”
He gave whoever came to the door a smile. = He gave any person who came to the door a smile. 比较：He asked me who broke the glass.（正确）他问我是谁打的玻璃。
He asked me whoever broke the glass.（错误）
Whoever goes against law shall be punished.（正确）违法的人将受罚。
Who goes against law shall be punished.（错误）
九、注意区分it 作形式主语的主语从句与强调句
强调句句型It is/was+被强调部分+that, 去掉It is/was, that，句子仍然成立。
It is natural that they should have different views. 主语从句
It is only lately that he had had a family himself. 强调句
What was it that he wanted? I don’t know what it was that he wanted.
It was in the hotel where he stayed that we discussed the serious problem
十、比较：whether与if
均为"是否"的意思。但在下列情况下，whether 不能被if 取代：
1、whether引导主语从句并在句首
Whether he left (or not) is unknown
2、引导表语从句
The question is whether they will be able to help us.
3、whether从句作介词宾语
It depends on whether we have enough time.
4、从句后有"or not"
Whether he will come or not is not clear.
5、不定式之前
She can't decide whether to buy the house or wait.
她不能决定到底是应该买下这个房子还是再等等。
6、同位语从句中
There is doubt whether he will come.
7、宾语从句前移
Whether she will win the game, I’m not sure.
高考英语陷阱题总结归纳——名词性从句
◆典型陷阱题分析◆
1. She was so angry and spoke so fast that none of us understood _______ he said meant.
A. that
B. what
C. that that
D. what what
【陷阱】可能误选B.许多同学一看选项首先就排除了C和D，认为这样两个“引导词”叠用的情况不太可能。在A和B两个选项中，选项A肯定不行，因为它引导宾语从句时不能充当句子成分，所以便选择了B.
【分析】正确答案选D.第一个what 用作动词meant 的宾语，第二个what 用作动词said 的宾语，即在none of us understood what what he said meant 中，none of us understood 为主句，what what he said meant 为宾语从句，而在此宾语从句中又包括有what he said 这样一个主语从句。
2. After _______ had happened he could not continue to work there.
A. which
B. how
C. what
D. having
【陷阱】可能误选A.
【分析】最佳答案选C.有的同学误选A，是因为认为介词后应接关系代词which，但实际上，若填关系代词，其前没有先行词，这根据不是一个定语从句。另外，由于had happened 缺主语，所以B和D也不能选。请再做下面一题（答案选B）：
He pointed to ______ looked like a tomb and said, “Ghost.”
A. that
B. what
C. which
D. as
3.“Is ______ you want to say？” asked the teacher.
A. this
B. that
C. all that
D. that all
【陷阱】根据中文字面意思误选A或B.
【分析】最佳答案选D.假若选A或B，那么转换成陈述句即为：This is you want to say. / That is you want to say. 显然句中的两个谓语动词is与want相冲突。选D组成的句子是Is that all you want to say？其中的that 为句子主语，all 为表语，you want to say 为定语从句，用以修饰all.
4. “When ______ leave for Japan？” “When ______ leave for Japan is kept secret.”
A. they will, will they
B. will they, they will
C. they will, they will
D. will they, will they
【陷阱】可能误选D，认为when 后应用疑问句词序。
【分析】最佳答案选B.第一个when引出的是一个特殊疑问句，故用疑问词序；第二个when 引出的是主语从句，故其后用陈述句词序。请做以下试题（答案选C）：
（1）None knows if _______ that boy, but if _______ him, her parents will be disappointed.
A. she will marry, she will marry
B. she marries, she marries
C. she will marry, she marries
D. she marries, she will marry
（2）“Where _______ go to work？” “Where _______ go to work is not known.”
A. we shall, we shall
B. shall we, shall we
C. shall we, we shall
D. we shall, shall we
5. Someone is ringing the doorbell. Go and see ______.
A. who is he
B. who he is
C. who is it
D. who it is
【陷阱】几个干扰项均有可能误选。
【分析】此题最佳答案为D.首先可以排除A和C，因为空格处实为一个宾语从句，所以不能用疑问句词序。另一方面，但按英语习惯，当用于指代身份不明的人时，要用代词it，而不用he 或she等。比较以下两句：
Mr Smith is at the door. He wants to see you. 史密斯先生在门口，他想见你。
Someone is at the door. It may be the postman. 有个人在门口，可能是邮递员。
第一句因前面指明了是Mr Smith，所以后面用代词he；而第二句因前面用的是不定代词someone，说明此人身份尚不明确，故其后用了代词it 来指代。
6. Don’t you know, my dear friend, ______ it is your money not you that she loves？
A. who
B. which
C. that
D. what
【陷阱】此题容易误选A或B：选A 的同学认为这是指人的，故用who；选B的同学认为这是非限制性定语从句，两者都是误认为这是定语从句（注意没有先行词）。
【分析】其实答案应选C.that引导的是一个宾语从句，用作动词know 的宾语，它只是被句中的插入语my dear friend 隔开罢了。请做以下试题（答案均为C）：（1）Everyone knows, perhaps except you, _______ your girl-friend is a cheat.
A. who
B. which
C. that
D. what
（2）I think, though I could be mistaken, ______ she liked me.
A. who
B. which
C. that
D. what
（3）He told me the news, believe it or not, ______ he had earned $1 000 in a single day.
A. that
B. which
C. as
D. because
前面两题that 引导宾语从句，后面一题that同位语从句（修饰the news）。
对应练习答案：1.B 2.D 3.CBA 6-10.BACAB 11-15.ABC
Keys: 1.Whether/if 2. whether 3.whether 4.whether 5. whether 6. If
精选习题答案和解析：
1. [解析] C she told me是插入语，可删除。what引导主语从句，在从句中充当主语。
2. [解析] C create后为宾语从句，从句中they hope是插入语，可删除，因为从句中缺少主语，所以用what引导该从句。
3. [解析] C was后为表语从句，when与the last time相呼应，根据句意可排除其他选项。
4. [解析] A 介词about后为宾语从句，从句中动词do与think缺少宾语，所以用what引导该从句；which“哪一个”、whom“谁”与句意不符，可排除；that引导宾语从句时不充当成分，也可排除。
5. [解析] A from后为宾语从句，从句中动词speak缺少宾语，所以用what引导该从句。
6. [解析] B 从第二个is可知它的前面是主语从句，后面是表语从句，主语从句中缺少主语，所以用what引导；若去掉第二个is，则选A项。
7. [解析] A 此句中When asked =When they were asked，asked后为宾语从句，从句中缺少宾语所以用what引导该从句。
8. [解析] C 介词of后为宾语从句，此处用what引导宾语从句，在从句中充当宾语。
9. [解析] A finding out后为宾语从句，根据句意只能用how far“到什么程度或范围”引导该从句。
10. [解析] D idea后为同位语从句，表示idea的具体内容，根据句意从句中缺少地点状语，所以用where引导。
11. [解析] D 该句中it是形式主语，所填选项引导真正的主语从句，从句中不缺任何成份和意义，只缺少连接词，所以用that引导。
12. [解析] C 所填选项引导主语从句，且在从句中充当主语，可排除A、B两项；who可用来引导主语从句且充当主语，但who表示疑问语气，与句意不符，故可排除；所以此处用whoever引导主语从句，相当于anyone who，此时anyone用作先行词，who引导定语从句。
13. [解析] D news后为同位语从句，表示news的具体内容，从句中不缺任何成份和意义，只缺少连接词，所以用that引导。
14. [解析] A 所填选项引导主语从句，且在从句中充当介词about的宾语，所以用what引导。
15. [解析] C to后为宾语从句，此处用whoever引导宾语从句，在从句中充当主语，此时whoever=anyone who；no matter who只能用于引导让步状语从句。
16. [解析] A所填选项引导主语从句，且在从句中充当主语，所以用what引导。
17. [解析] C 此处用it作形式宾语，when and where the meeting would be held作真正的宾语。当复合宾语中的宾语是从句时，一般用先行代词it作形式宾语，而将从句放在补语的后面。
18. [解析] A 此处用what引导宾语从句，在从句中充当表语。which引导宾语从句时意为“哪一个”，表示选择；how引导宾语从句时意为“如何”；where引导宾语从句时意为“在……地方”，均与句意不符。
19. [解析] B所填选项引导主语从句，且在从句中充当宾语，所以用what引导。
20. [解析] A on后为宾语从句，此处用what引导宾语从句，在从句中充当介词for的宾语。
21. [解析] A That’s后为表语从句，此处where与downtown相呼应，根据句意可排除其他选项。
22. [解析] B 该句中it作形式主语，what引导主语从句。该主语从句还原为疑问句应为“What do other people think about you?”。
23. [解析] B 所填选项引导宾语从句，从句中不缺任何成份和意义，只缺少连接词，所以用that引导。
24. [解析] B of后为宾语从句，从句中缺少宾语，所以用what引导；something后接定语从句，可以省略作宾语的关系词that。
25. [解析] C所填选项引导主语从句，且在从句中充当say和do的宾语，可排除A、D两项；which引导宾语从句时意为“哪一个”，表示选择，与句意不符，故选C。
26. [解析] D is后为表语从句，从句中不缺任何成份和意义，只缺少连接词，所以用that引导。
27. [解析] B of后为宾语从句，从句中缺少宾语，可排除A、D两项；which引导宾语从句时意为“哪一个”，表示选择，与句意不符，故选B。
◆精编陷阱题训练题答案与解析◆
1. 选D.what made matters worse 是主语从句（注意其后有谓语动词was），相当于the thing that made matters worse.
2. 选A.what 引导的是表语从句，相当于the thing that it takes to do anything well.
3. 选C.that 引导的是一个主语从句，句首的it为形式主语。
4. 选C.答句为省略句，其完整形式为I was trying to prove to the police where I was last night，在此where 引导的是一个宾语从句。类似地，下面选C：
“_______ made her struggle to become an artist so hard？” “______she was a woman.”
A. What, What
B. That, That
C. What, That
D. That, What
5. 选D.what 引导的是表语从句，what 在此相当于the things that.
6. 选C.句首的it 是形式主语，空格处所填词用于引导主语从句。由于该主语从句中又缺主语，故排除A、B、D.（注意：不能选A，因为that 引导名词性从句时不能充当句子成分）
7. 选A.第一空填what，是因为该主语从句中的动词understand 缺宾语；why 和because 均可引导表语从句，其区别是：why 引导表语从句强调结果，because 引导表语从句强调原因。句中空格后文表明的是结果，故用why.
8. B.what 在此引导主语从句且在从句作宾语，它相当于the thing that.
9. B.两空均填what，均用于引导宾语从句，因为两个宾语从句中的动词said 和do 均缺宾语，而在各个选项中只有what 可用作宾语。
10. 选A.what 引导宾语从句。由于动词wants 缺宾语，所以填what.句意是：当你找工作面试回答问题时，请记住这条黄金定律：永远给予对方确实想要的东西。
11. 选A.I can to save them 为I can do to save them 之略，此句中的do 缺宾语，故选whatever.
12. 选B.that 在此引导主语从句，无词义，也不充当句子成分。注意不要根据中文意思选D，因为because 不用于引导主语从句。
13. 选C.两个空格处均为引导宾语从句的引导词，而四个选项中两者可引导宾语从句的只有C.
14. 选B.比较That’s why… 与That’s because…：前者用于强调结果，后者用于强调原因。如下面一题选D：
I got wet all through. _______ I had neither a raincoat nor an umbrella.
A. It’s the reason
B. That’s why
C. There’s why
D. That’s because
15. 选D.由is worth praising 这一谓语可知前面是主语从句，排除不能引导从句的B 项和C 项；whoever 引导主语从句表示“任何……的人”，在此它相当于anyone who.
16. 选A.how 引导主语从句，that 引导同位语从句。
【英语】名词性从句知识点总结和题型总结
【英语】名词性从句知识点总结和题型总结 一、名词性从句 1．______ will be in charge of the meeting has not been decided yet. A. What B. Which C. That D. Who 【答案】 D 【解析】【分析】句意：谁将负责这次会议还没有决定。______ will be in charge of the meeting是一个主语从句，从句中缺少主语，指人，故选D。 【点评】考查名词性从句，本题涉及who引导的主语从句。 2．___ surprised me most was ____the girl passed the driver test. A. That; that B. What; how C. What; that D. That; why 【答案】 C 【解析】【分析】句意：最让我吃惊的是那个女孩通过了驾驶考试。___ surprised me most是一个主语从句，从句中缺少主语，故填what；____the girl passed the driver test 是一个表语从句，句中不缺少成分，故填that。因此选C。 【点评】考查名词性从句，本题涉及what引导的主语从句和that引导的表语从句。 3．________ is known to us all that the old scientist, for ________ life was hard in the past, still works hard in his eighties. A. As; whose B. It; whose C. As; whom D. It; whom 【答案】 D 【解析】【分析】句意：我们都知道，那位老科学家，过去生活很艰苦，到了八十多岁还在努力工作。第一空it is known to us all that…是个固定句型，意为“众所周知…”；第二空为介词+关系代词引导的定语从句，先行词the old scientist指人，作介词for的宾语，只能用whom，故选D。 【点评】考查名词性从句和定语从句，本题涉及固定句式it is known to us all that…和whom引导的限制性定语从句。 4． is even more important is the earth cooled down, water began to appear on its surface. A. When; that; when B. What; whether; as C. What; that; as D. lt; whether; as 【答案】 C 【解析】【分析】这题考查从句的用法，第一空填what引导主语从句，在主语从句中what做主语，第二空填that引导表语从句，在表语从句中，as是引导时间状语从句，句意是：甚至更重要的是：随着地球的冷却，水开始出现在表面。选C。 5．Has it been announced ______?
定语从句最全面的知识点整理
定语从句整理 定语从句分为限定性和非限定性 1.定语从句修饰先行词 2.关系代词：that, who, whom, whose, which, as 关系副词：where, when, why 3.关系词在句中的作用1. 引导定语从句 2. 代替先行词3.在定语从句中担当一个成分 4.关系代词在从句中做主语或者宾语； 5.关系副词做状语，相当于：介词+which。 when是时间状语，where是地点状语，一些特殊先行词后面也用where，比如 point, situation, part, condition,case 表示到了某种地步，某种程度也用where. * where和when都可以换成介词+which，但是不是所有介词+which都可以换成where或者when。 *不是所有介词都可以放在which或者whom前面，一些动词短语比如：look for, look after，take care of turn in, pay attention to, depend on, listen to就不能拆开使用，且介词后面不能用who或者that 关于关系词的省略 1)who, whom, that, which, 做宾语时可省。 2)that做表语可省 be动词后 3)that做宾补可省 4)*关系副词when在time, year, day后面可省，也可换成that,但不 普遍 5)*关系副词where在place, 和anywhere, somewhere这种--where 的后面时候可以省略，也可换成that但不普遍 6)*关系副词why放在the reason后面，即可换成 for which, that 又可省略，此较普遍。但放在a reason后面可省，但貌似不可以换成that 7)the way后面可以用in which, that 也可省略 关于that 可以用that的情况； that 在定语从句中的功能非常多 1.可以代词关系代词 who, whom, which, 既可以做主语又可以做宾语，做宾语时可以省略；限从中可以说遇到关系代词就可以换成that， whose除外，因为whose的名词所有格（。。。的）whose= of which 2.关系副词why修饰the reason可换成that,也可省。 Notice:见到the reason不一定非要选why, 做宾语时候选which/that, 也可省。 3.that在某些特殊情况下代替 where， when但不普遍。 4.the way后面可以用in which, that 也可省略 必须用that的情况 (做宾语依旧可省） 1.先行词是不定代词 everything, anything, nothing, 等不定代词 *不含something 2.先行词被every, any, all, some, no, little, few, much等限定词修饰 3.先行词被序数词修饰 the first, the second..... 4.先行词被最高级修饰 the best, the most 5.先行词被the very, the most修饰时
【英语】状语从句知识点总结和题型总结(word)1
【英语】状语从句知识点总结和题型总结（word）1 一、初中英语状语从句 1．He doesn't tell me when he_______ . I'll telephone you as soon as he______. A．will come;comes B．will come; will come C．comes; will come D．comes; comes 【答案】A 【解析】 试题分析：句意：他没告诉我什么时间回来。他一回来我就告诉你。宾语从句中表示将来，用将来时，而状语从句中多用一般现在时表示将来时；故选A。 考点：考查时态的用法。 2．Tony has had to cook by himself ________ his mother went on business to Guangzhou. A．since B．after C．during D．when 【答案】A 【解析】 【详解】 句意：自从妈妈去广州出差以来，托尼不得不自己做饭。A. since从……以来；B. after在……之后；C. during 在……期间；D. when当……时候。since后跟时间状语从句时，表示的是到目前为止的时间段，从句时态为一般过去时，而主句的时态为现在完成时，故正确答案为A。 3．—I hear Music and Art will enter the Entrance Examination for the high school. —Yes. but don’t worry. Nothing will be difficult if more attention _____ to them. A．will pay B．will be paid C．is paid D．pays 【答案】C 【解析】句意：——我听说音乐和艺术将进入高中入学考试。——是的。但别担心。如果对他们给予更多的关注，就不会有困难。考查被动语态。本句是if引导的条件状语从句，需用一般现在时态代替一般将来时态；从句主语more attention是单数第三人称，又是动词pay的受动者，需用被动语态，即is+paid结构；根据句意语境，可知选C。 4．—Tom wants to know if you ___ a picnic next Sunday. —Yes. But if it ___， we'll visit the museum instead. A．will have; will rain B．have; rains C．have; will rain D．will have; rains
名词性从句知识点总结经典(1)
名词性从句知识点总结经典(1) 一、名词性从句 1．He took a trip to Beijing last week and ________ he saw at the Forbidden City impressed him deeply. A. that B. how C. what D. which 【答案】 C 【解析】【分析】句意：上周他到北京旅行了，他在故宫所看到的给他留下了深刻的印象。分析句子结构可知，连词and后为一个名词性从句，因此应该使用what引导，且what在从句中作主语，故选C。 【点评】考查名词性从句，本题涉及what引导的主语从句。 2．It has been pointed out ________ plays a vital role in driving away one's anxiety is one's sweet childhood memories. A. what that B. which C. that D. that what 【答案】 D 【解析】【分析】句意：有人指出，驱除焦虑所起着至关重要的作用是童年美好的回忆。本句时一个主语从句，it作形式主语，真正的主语为that what plays a vital role in driving away one's anxiety is one's sweet childhood memories.，主语从句中又有一个主语从句，且此主语从句中缺少主语，所以用what引导。故选D。 【点评】考查名词性从句，本题涉及what引导的主语从句。 3．________ is known to us all that the old scientist, for ________ life was hard in the past, still works hard in his eighties. A. As; whose B. It; whose C. As; whom D. It; whom 【答案】 D 【解析】【分析】句意：我们都知道，那位老科学家，过去生活很艰苦，到了八十多岁还在努力工作。第一空it is known to us all that…是个固定句型，意为“众所周知…”；第二空为介词+关系代词引导的定语从句，先行词the old scientist指人，作介词for的宾语，只能用whom，故选D。 【点评】考查名词性从句和定语从句，本题涉及固定句式it is known to us all that…和whom引导的限制性定语从句。 4．Some people believe _______ has happened before or is happening now will repeat itself in the future. A. whatever B. whenever C. wherever D. no matter what 【答案】 A 【解析】【分析】句意：一些人认为之前发生的或现在正在发生的任何事情在将来都会重复发生。Whatever has happened before or is happening now是一个主语从句，whatever既引导起这个主语从句，也在句中做主语。BC项都属于副词的性质，都不能做主语，通常只
定语从句常见考点
解题思路 1.通读全句。首先判断是什么句型。 2.题干句如果是疑问句式，将其转化为陈述句式。 3.分析从句的句子结构，在定语从句中，缺什么，就补什么：缺主或宾语，用关系代 词；缺状语，用关系副词 4. 注意标点符号和题干中是否存在并列连词and, but等。 常见考点 1.指物时只用that 或which 的情况 2.介词+关系代词 3.Whose 用法及转换形式 4.as 与which的区别 5.指人时that 与who的区别 6.如何判断用关系副词还是关系代词 7.定语从句中的主谓一致问题 1. This is all ____ I know about the matter. A. that B. what C. who D. whether 2. Is there anything else _____ you require? A. which B. that C. who D. what 3. The last place _____ we visited was the Great Wall. A. which B. that C. where D. it 4. He talked happily about the men and books _____ interested him greatly in the school. A. which B. that C. it D. whom 5. There is no dictionary _____ you can find everything. A. that B. which C. where D. in that 6. Is oxygen the only gas _____ helps fire burn? A. that B. / C. which D. it 7. Which was the hotel _____ was recommended to you? A. that B. which C. where D. it 考点一:that 与which 的区别 1. 先行词为all, little, much, everything, nothing, something, anything等不定代词 2.先行词被all, little, much, every, no, 等修饰时 .3先行词被序数词或最高级修饰先行词前有序数词(the first),形容词最高级(the best), the last, the very, the only 等时。 4. 先行词为人和物的组合 5.若主句中有疑问代词who 或者which，为了避免重复, 关系代词不要再用who, which，而用that。 考点二:介词+关系代词 提醒: 介词﹢关系代词引导的定语从句, 关键 是判断介词的选择. 方法一:根据从句中动词与先行词习惯搭配 方法二:根据从句中动词与先行词的逻辑关系 注意：关系代词在定语从句中作介词宾语时，从句常常由“介词+关系代词”引出。此时关系代词只能用which 或whom; 不可用that 或who 代替
复习专题常见名词性从句最全总结
复习专题常见名词性从句最全总结 一、初中英语名词性从句 1． is known to all is that the earth is smaller than the sun. A. As B. What C. It D. Which 【答案】 B 【解析】【分析】句意：众所周知地球比太阳小。 is known to all 是主语从句，从句中缺少主语，因此用what，选B。 【点评】考查名词性从句，本题涉及what引导的主语从句。 2．It________that the road will be closed tomorrow for repairs. A. was announced B. has been announced C. had been announced D. would be announced 【答案】 B 【解析】【分析】本题考查动词的时态和语态。题干句子中that到句子结束是宾语从句，且从句动词用“will＋动词原形”表示将来，由此推断出空白处谓语动词应用现在的某种时态，在所给四个选项中，只有B项正确。 【点评】考查现在完成时的被动语态，其结构是have/has +been +done。需要注意宾语从句的时态。主句用现在时，从句所需的任何时态。 3．Located between the 16th and the 18th floor, ______ I call my “home” is more like a “bird's nest”. A. which B. that C. what D. where 【答案】 C 【解析】【分析】考查主语从句。What引导主语从句______ I call my “home”且 What在从句中充当call的宾语。故选C。 4．________ we may find interesting is that it usually takes more to be polite. A. That B. What C. Which D. / 【答案】 B 【解析】【分析】句意：我们可能会发现有趣的是通常需要更多的礼貌。此处是主语从句做主语，从句没有引导词，缺少宾语，故答案为B。 【点评】考查名词性从句，本题涉及what引导的主语从句的应用。 5．______ is our belief that improvements in health care will lead to a stronger, more prosperous economy. A. Which B. What C. It D. As 【答案】 C
高考英语名词性从句知识点全集汇编含答案(4)
高考英语名词性从句知识点全集汇编含答案(4) 一、选择题 1．—The hillside village remains primitive and unspoiled. —That explains ______ people desire to explore such a remote place. A．how B．where C．when D．why 2．When we start gazing into the night sky with a telescope, the realization will suddenly come over us _______ we and our world are part of this giant system. A．as B．where C．that D．whether 3．Thor is no longer _______ he was two years ago. A．that B．who C．what D．which 4．They didn't discover until they happened to enter the back room _________ someone had stolen the priceless painting. A．that B．what C．which D．when 5．Much to the couple's comfort，their income is now double ________ it was five years ago. A．that B．if C．which D．what 6．As days go on，I think that Beijing will become ________ the whole world pay close attention to. A．where B．what C．which D．that 7．The Oscars have been around for so long that they serve as an indicator of ________ the Hollywood community values now and in the past. A．that B．where C．how D．what 8．The setting of the film Zootopia may be limited in the city full of kinds of animals, but __________ it exposes about human nature is quite broad. A．which B．that C．what D．whether 9．If you are addicted to your mobile phone, that’s ______ you should lay it down a nd be involved in meaningful activities. A．when B．why C．where D．how 10．Fanny asked ________ made that odd-looking little cat so popular. A．what was it that B．wat was that C．what it was that D．what that was 11．— Would you please tell us the prospect of fighting against COVID-19? —We are sure to win the battle, but ______ it’ll be over soon I’m not sure at the moment. A．whether B．that C．if D．when 12．_______football is such a simple game to play is perhaps the basis of its popularity. A．What B．Whether C．That D．Which 13．Craig is always sticking his nose in ______ it’s not wanted. He is always trying to find out my personal information. A．what B．which C．where D．that 14．The weather is fine. I’m sure ________ we can go camping this afternoon. A．why B．what C．that D．if 15．—How do you find the 5G cell phones?
高考英语定语从句常见考点归纳
高考英语定语从句常见考点归纳 定语从句是中学英语教学的重点，也是学生学习的难点，同时又是高考考查的热点。纵观近年各地高考试题，就能发现考点大多集中在带有"插入语"的定语从句；which 、as 引导的非限定性定语从句；where 、when引导的定语从句以及定语从句和强调句、同位语从句的区别等方面。 对定语从句的考查不单纯考查其语法结构，而是把它融入到一定的语境中，考查考生的实际综合运用能力。 高考试题中，主要从以下角度考查定语从句： 定语从句的考点之一 that用法 正确区分关系代词that引出的定语从句功能强，除不能作定语(用whose)外，其它几个功能都可用that。但命题角度主要以that与which指物时的区别为重点进行命制。例如： （1）——Do you have anything in mind _________ you’d like for supper? ——Well, _________ is OK with me. A. that ; anything B. which ; everything C. what ; whatever D. where ; something 选A。 （2）The wrong you've done him is terrible, for ______ you should make an apology to him, I think. A. this B. which C. what D. that 选B。 定语从句的考点之二 判断成分，是关系代词还是关系副词 正确区分关系代词(that或which)与关系副词when(表时间)、where(表地点)、why(表原因)。 重点根据定语从句中所缺成分 （即关系词在定语从句中作状语时，使用关系副词when (on which); where(in which); why(for which)；在定语从句中作作主语、宾语或表语时，使用that或which。）来确定是用关系代词还是关系副词，绝不能因先行词是时间名词就用when，是地点名词就用where，是reason就用why来确定。 因此，认准先行词只是选择关系词的一个方面，更重要的是看其在后面定语从句中充当什么句子成分例如： （3）He should stand near the stage ________ he could watch and follow the play. A. where B. when C. that D. there 选A。 （4）Do you think the reason _______ he gave is believable. A. for which B. which C. why D. what 选B。 （5）We are living in an age _______ many things are done on computer. A. which B. that C. whose D. when 选D。
名词性从句总结
划从句的方法的方法：通常从引导词（即空）开始划到往后出现的第二个谓语动词之前 删除法（成分残缺的是名词性从句，不残缺的是的定语从句，状语从句，同位语从句） 引导名词性从句的连接词可分为三类： 连词（5个）： that （本身无意义。引导单一的宾语从句时that常可省略，但引导主语从句、表语从句、同位语从句时that通常不被省略） whether,if （均表示“是否”表明从句内容的不确定性） as if ,as though （[1] 均表示“好像”，“似乎”） ◆以上在从句中均不充当任何成分 连接代词（10个）： what/ whatever, who/ whoever, whom/ whomever, whose/whosever, which/ whichever 连接副词（7个）： when/ whenever, where/ wherever, how/ however, why 1.whether引导主语从句(位于句首时) ，表语从句，同位语从句，不用if （.if只能引导两种名词性从句：宾语从句；不放于句首的主语从句。） 2. whether从句作介词宾语，不用if I’m thinking about whether I should quit my present job.我正在考虑是否辞去现在的工作。 3. if与whether都可以与or not连用，但后面紧跟着or not时只能用whether； 4.在动词不定式之前，只能用whether，不能用if。 I don’t know whether or not to tell her the news.我不知道要不要告诉她这个消息。 5.在容易引起混淆产生歧义的情况下，就不可用if，而须用whether。 6.位于discuss后引导宾语从句时whether They are discussing whether the meeting will be put off.他们正在讨论会议是否会被推迟。 通俗来讲，whether在大多数情况下都可以用,而if则不然,有wether和if时一般选wether 不会有错,但是如果所需的意思是"如果",自然只能选if了 考查名词性从句的语序问题 名词性从一般为陈述句语序（连接词+主语+谓语+其他成分） 但what's the matter、what's wrong 本身为陈述语气，则保持原有语序不变。
【初中英语】定语从句知识点总结
【初中英语】定语从句知识点总结 一、定语从句 1．This is the most beautiful picture __________ I have ever seen. A．that B．which C．what D．who 【答案】A 【解析】 句意：这是我见过的最漂亮的画。考查定语从句。先行词被最高级修饰时，引导词应用that。 结合句意和语境可知选A。 点睛：限制性定语从句中只能用that 引导定语从句的几种情况： 当先行词是everything, anything, nothing （something 除外）, all, none, few, little, some等不定代词时，或当先行词受every, any, all, some, no, little, few, much等词修饰时。如： Have you set down everything that Mr Li said? There seems to be nothing that is impossible to him in the world. 注意：当先行词指人时，偶尔也可用关系代词who。如： Any man that / who has a sense of duty won’t do such a thing. 任何有责任感的人都不会做这样的事。 All the guests that / who were invited to her wedding were important people. 所有被邀请参加婚礼的 客人都是重要人物。2. 当先行词被序数词修饰时。如：The first American movie that I watched was the Titanic. 3. 当先行词被形容词最高级修饰时。如： This is the best museum that I have visited all my life. 4. 当先行词被the very, the only, the first / last等修饰时。如：She is the only person that understands me. 注意：当先行词指人时，偶尔也可以用关系代词who。如： Wang Hua is the only person in our school who will attend the meeting. 5. 当先行词前面有who, which等疑问代词时。如：Who is the man that is standing in front of the crowd? 站在人群前 面的那个人是谁？Which is the room that Mr Wang lives in? 哪一间是王先生住的房间？ 当先行词人与物时。如：Look at the man and his donkey that are walking up the street. 当先行词是reason, way（方法）等词时，关系代词常用that代替in which, for which, why, 也常可省略。如：She admired the way （that） they solved the questions. 2．Mr.Brown is a teacher is strict with all is students. A．which B．who C．where 【答案】B 【解析】 【详解】 句意“布朗是一个对所有的学生都严格的老师”。 本题考查定语从句。A.指物，在从句中作主语或宾语；B.指人，在从句中作主语或宾语；C.表示地方，在从句中作地点状语。本句话中先行词为a teacher，指人，在从句中作主语，故选B。 【点睛】 做定语从句的题时，可先将先行词还原到句中。其次选择关系词，要先看先行词指人、指
名词性从句知识点总结
名词性从句知识点总结 在句子中起名词作用的句子叫名词性从句(Noun Clauses）。名词性从句的功能相当于名词词组, 它在复合句中能担任主语、宾语、表语、同位语、介词宾语等，因此根据它在句中不同的语法功能，名词从句又可分别称为主语从句、宾语从句、表语从句和同位语从句。 一．主语从句 主语从句是在复合句中充当主语的从句，通常放在主句谓语动词之前或由形式主语it代替，而本身放在句子末尾。 1. It 作形式主语和it引导强调句的比较 It 作形式主语代替主语从句，主要是为了平衡句子结构，主语从句的连接词没有变化。而it引导的强调句则是对句子某一部分进行强调，无论强调的是什么成分，都可用连词that。被强调部分指人时也可用who/whom。例如： a) It is a pity that you didn’t go to see the film. 你不去看那场电影真可惜。 b) It doesn’t interest me whether you succeed or not.我对你成功与否不感兴趣。 c) It is in the morning that the murder took place.谋杀案是在早上发生的。（强调句型） d) It is John that broke the window.是John打碎的窗户。（强调句型） 2. 用it 作形式主语的结构 (1) It is ＋名词＋从句 It is a fact that …事实是… It is an honor that …非常荣幸 It is common knowledge that …是常识 (2) It is ＋形容词＋从句 It is natural that…很自然… It is strange that…奇怪的是… (3) It is ＋不及物动词＋从句 It seems that…似乎… It happened that…碰巧… It appears that…似乎… (4) It ＋过去分词＋从句 It is reported that…据报道… It has been proved that…已证实… It is said that…据说… 3. 主语从句不可位于句首的五种情况： （1）if 引导的主语从句不可居于复合句句首。 （2）It is said /reported…结构中的主语从句不可提前。例如： 正确表达：It is said that President Jiang will visit our school next week. 错误表达：That President Jiang will visit our school next week is said. （3）It happens/occurs…结构中的主语从句不可提前。例如： 正确表达：It occurred to him that he failed in the examination. 错误表达：That he failed in the examination occurred to him. （4）It doesn’t matter how/whether …结构中的主语从句不可提前。例如： 正确表达：It doesn’t matter whether he is wrong or not.
高考英语定语从句知识点全集汇编含答案(4)
高考英语定语从句知识点全集汇编含答案(4) 一、选择题 1．—Where was the experiment carried out? —It was in the lab built in the 30s_______Mr. Smith worked as an assistant professor A．that B．which C．where D．when 2．Newton is shown as a gifted scientist with every human weakness stood at the point in history magic ended and science began. A．who; where B．which; where C．who; when D．which; that 3．I’ve come to the point____I can’t stand her arguing any longer. A．why B．which C．that D．where 4．Though it is 30 years_______we last met, I still remember the scene_______we got separated on a rainy day. A．before; where B．before; which C．since; when D．since; where 5．The president of Harvard pioneered the elective system______ students were able to choose their own courses of study. A．on which B．about which C．to which D．by which 6．Claims, if any, must be made within 30 days, _____ no claims will be accepted. A．without which B．for which C．during which D．after which 7．5G is an exciting mobile technology, ________ will give a massive boost to smart cities and vehicles. A．where B．when C．that D．which 8．Liberty, equality, and fraternity are the ideals _______ human beings have been fighting. A．to which B．against which C．with which D．for which 9．She's always suggesting ways ______ I can improve my cooking. I know she means well but this really annoys me. A．that B．which C．how D．when 10．I am looking forward to the day ________ my daughter can read this book and know my feelings for her. A．as B．why C．when D．where 11．You were very impolite to him, for _____ you should make an apology to him, I think. A．this B．which C．what D．that 12．The reason ________ he didn’t come to school on time is ________ he had to take care of his sick brother at home. A．That; because B．that; that C．why; because D．why; that 13．The book has helped me greatly in my daily communication, especially at work ________ a good impression is a must. A．which B．when C．as D．where 14．_______ is known to all, grammar is not a set of dead rules. A．That B．Which C．As D．It 15．I shall never forget those years _______ I spent on the farm with the farmers, _______ has a great effect on my life.
名词性从句总结以及注意点
名词性从句 第一节主语从句 引导主语从句的连接词有：that, whether, who, which, what, when, where, how, why等 That she was invited to the ball made her very happy. Whether he will come to the ball has nothing to do with me. Whoever wants to see the film may get a ticket free. Which team will win the match is still unknown. What interests you doesn’t interest him. Where they had stayed was still unknown. When they will have a meeting hasn’t been decided. 注意：1从句作主语谓语动词用第三人称单数形式。Who will go is not important. 2为了调节句子平衡，常用it作形式主语。It i s a pity that he didn’t come yesterday. It’s necessary that every League member (should) take the lead and work well. It’s suggested that a modern hotel (should) be put up at the foot of the hill. 3陈述句部分的主语是从句时，其反意疑问句部分的主语用it. How he became a scientist is known to us all, isn’t it? 第二节宾语从句 作动词、介词或形容词宾语的从句。以连词 that who whom whose what 等引导，在句子中充当宾语 I think (that) you will like the pictures. I feel it important that they finish their own task in time. They are worrying about whether they can get there in time. You can write about whatever topic you can think of. 一宾语从句三原则：语序；时态；引导词。1.语序：宾语从句用陈述句语序。 I wonder what he is writing to me about但是：what’s the matter/wrong (with)……语序不变.The owner came up to see what was the matter with me/what was wrong with me 2.时态：宾语从句谓语动词的时态与主句谓语动词的时态保持一致。 (1).如果主句的谓语动词是一般现在时或一般将来时，宾语从句用它本身的时态。I hear he will come back in an hour.(2).如果主句的谓语动词是一般过去时，宾语从句则用相应的过去时态。 She said that he had never been to the Great Wall.(3).如果宾语从句的内容是客观真理时，宾语从句仍然用一般现在时。The teacher told us that the earth goes around the sun. / light travels faster than sound.3.引导词：（1）由that引导（2）由if/whether引导（3）由特殊疑问词引导 二 it在宾语从句中的应用： 1. vt.+it+adj./n.+that-clause 或wh-clause。 She has made it clear that she will have nothing to do with him.