2024年5月28日发(作者：邬白玉)
Grammar—Noun clauses as the subject
语法感知
感知以下课文原句，完成方框下的小题
1．What it was to become was uncertain until between 4.5 and 3.8 billion years ago when the dust
settled into a solid globe.
2．The earth became so violent that it was not clear whether the shape would last or not.
3．What is even more important is that as the earth cooled down，water began to appear on its
surface.
4．It was not immediately obvious that water was to be fundamental to the development of life.
5．Why they suddenly disappeared still remains a mystery.
6．So whether life will continue on the earth for millions of years to come will depend on
whether this problem can be solved.
1．以上黑体部分在句中作主语。
2．第1句中的what在从句中作宾语；第3句中的what在从句中作主语。
3．第2句和第6句中的whether意为：是否。
4．第4句中It是形式主语，真正的主语是后面that引导的从句。
5．第5句中why在从句中作状语。
语法精析
一、定义
在主从复合句中充当主语的从句即为主语从句。
What made people excited was that the solar ship had completed its journey around the world.
让人们激动的是这艘太阳能船已完成了环游世界的旅行。
It worried the woman that her son was always playing computer games.
她的儿子总是玩电脑游戏，这让这个女人很担心。
二、主语从句的连接词及其句法功能
类别
从属连词
例词
that，whether
说明
两者在从句中均不作成分，只起连接作用；that
无实义，whether意为“是否”。
连接代词 who，what，which，whoever，在从句中作主语、宾语、表语、定语等成分。
whatever等
连接副词
That she survived the accident was a miracle.
她在事故中幸免于难简直是个奇迹。
Whether you can succeed or not depends on how hard you work at it.
你能否成功取决于你努力的程度。
What we need is more water.
我们需要的是更多的水。
Who will go to the concert is not known.
不知道谁会去听音乐会。
Whatever you do in your spare time should do no harm to others.
无论你在业余时间做什么都不应该伤害其他人。
How this happened is not clear to anyone.
这件事是怎样发生的，谁也不清楚。
When we will have a meeting is an important question.
我们何时举行会议是一个重要的问题。
Where I spend my summer vacation is none of your business.我在哪里过暑假不关你的事。
三、it作形式主语
为保持句子平衡，常把主语从句后置，而用形式主语it代替。it作形式主语时常用于以下句
型：
句型
It＋系动词＋形容词＋主语从句
说明
常用于此句型的形容词有important，(un)likely，
possible，necessary，natural，wrong等。
常用于此句型的名词有fact，idea，honour，
question，pity等。
常用于此句型的过去分词有known，proved，
said，decided，suggested，thought等。
常用于此句型的动词有appear，happen，seem，
occur，matter等。
when，where，how，why等
在从句中作时间、地点、方式、原因状语等成
分。
It＋系动词＋名词＋主语从句
It＋系动词＋过去分词＋主语从句
It＋不及物动词＋主语从句
It’s possible that we work out the math problem.
我们有可能算出这道数学题。
It was a pity that you didn’t attend the meeting.
你没参加这次会议太可惜了。
It is suggested that the meeting be put off.
有人建议会议延期召开。
It seems that it is going to rain.
看起来好像要下雨。
考点警示
1．从句的语序：在任何情况下，主语从句都用陈述语序。
Whichever of you gets here first will get the prize.
你们谁第一个到达这里谁就获奖。
2．主谓一致
(1)从句作主语时，主句的谓语一般用单数形式；但what和who引导主语从句时，有时主句
谓语的数应与主句中作表语的名词保持一致。
When we shall have our sports meeting has not been decided.我们什么时候应该开运动会还没有
确定。
What they need are books.他们需要的是书。
(2)由and连接两个或两个以上的主语从句作主语时，谓语动词用复数；由两个或多个连接词
引导一个主语从句时，谓语动词用单数。
When they will start and where they will go have not been decided yet.
他们什么时候动身以及要去哪里还没定下来。
How and why he came to this city is a story of struggle and success.
他为什么及如何来到这个城市是一个充满奋斗和成功的故事。
3．whether引导的主语从句，如果用了形式主语it，引导词whether可以换成if。如果whether
从句在句首或后面有or not时，不能用if替换。
Whether genetically-modified food does us harm remains to be seen.
＝It remains to be seen whether/if genetically-modified food does us harm.
转基因食物对我们是否有害还有待观察。
名师点津 名词性从句引导词的确定步骤：
(1)分析句式结构，明确名词性从句在句中的功能；
(2)明确名词性从句所表达的意义；
(3)明确名词性从句中所需要的成分及意义；
(4)确定从句的引导词。
高考链接
单句语法填空
1．Every year，whoever makes the most beautiful kite will win a prize in the Kite Festival.
(2017·北京)
2．It is often the case that anything is possible for those who hang on to hope.(2016·江苏)
3．Your support is important to our er you can do helps.(2016·北京)
4．How we understand things has a lot to do with what we feel.(2015·北京)
5．Where Li Bai，a great Chinese poet，was born is known to the public，but some won’t accept
it.(2015·江苏)
6．Exactly when the potato was introduced into Europe is uncertain，but it was probably around
1565.(2014·大纲全国)
7．I think what impresses me about his painting is the colours he uses.(2014·天津)
Ⅰ.单句语法填空
1．That we are invited to the concert this evening is good news to us.
2．It doesn’t matter whether you pay by cash or credit card in this store.
3．What you said at the meeting describes a bright future for the company.
4．It is necessary that he should learn about the whole matter.
5．Whoever sticks to his work will succeed sooner or later.
6．Where cars will be parked in the future is a question.
7．It was a pity that you missed the film.
8．How we can get in touch with him is the most important.
Ⅱ.单句改错(每小题仅有1处错误)
9.
If
we will give up the plan isn’t decided.
Whether
What
10. the boy is always late for school is clear to us all.
That
That
11. we cannot get seems better than what we have had.
What
12．It is believed
what
the heavy fog does harm to our health.
that
that
he will attend the meeting or not.
whether
13．It will make no difference
Ⅲ.语法填空(用适当的连接词填空)
Everyone knew Wendy was a famous writer，but no one knew she came from
and r she was born in 1961 was still a they did know was she
was loved by poor people because she always helped r was in need of was
generous and helpful，but some people thought she was chasing said she didn’t
understand they were so narrow-minded，but it didn’t matter others thought of
just wanted to do (ever) she thought was right.I think that is the meaning
of life lies.
2024年5月28日发(作者：邬白玉)
Grammar—Noun clauses as the subject
语法感知
感知以下课文原句，完成方框下的小题
1．What it was to become was uncertain until between 4.5 and 3.8 billion years ago when the dust
settled into a solid globe.
2．The earth became so violent that it was not clear whether the shape would last or not.
3．What is even more important is that as the earth cooled down，water began to appear on its
surface.
4．It was not immediately obvious that water was to be fundamental to the development of life.
5．Why they suddenly disappeared still remains a mystery.
6．So whether life will continue on the earth for millions of years to come will depend on
whether this problem can be solved.
1．以上黑体部分在句中作主语。
2．第1句中的what在从句中作宾语；第3句中的what在从句中作主语。
3．第2句和第6句中的whether意为：是否。
4．第4句中It是形式主语，真正的主语是后面that引导的从句。
5．第5句中why在从句中作状语。
语法精析
一、定义
在主从复合句中充当主语的从句即为主语从句。
What made people excited was that the solar ship had completed its journey around the world.
让人们激动的是这艘太阳能船已完成了环游世界的旅行。
It worried the woman that her son was always playing computer games.
她的儿子总是玩电脑游戏，这让这个女人很担心。
二、主语从句的连接词及其句法功能
类别
从属连词
例词
that，whether
说明
两者在从句中均不作成分，只起连接作用；that
无实义，whether意为“是否”。
连接代词 who，what，which，whoever，在从句中作主语、宾语、表语、定语等成分。
whatever等
连接副词
That she survived the accident was a miracle.
她在事故中幸免于难简直是个奇迹。
Whether you can succeed or not depends on how hard you work at it.
你能否成功取决于你努力的程度。
What we need is more water.
我们需要的是更多的水。
Who will go to the concert is not known.
不知道谁会去听音乐会。
Whatever you do in your spare time should do no harm to others.
无论你在业余时间做什么都不应该伤害其他人。
How this happened is not clear to anyone.
这件事是怎样发生的，谁也不清楚。
When we will have a meeting is an important question.
我们何时举行会议是一个重要的问题。
Where I spend my summer vacation is none of your business.我在哪里过暑假不关你的事。
三、it作形式主语
为保持句子平衡，常把主语从句后置，而用形式主语it代替。it作形式主语时常用于以下句
型：
句型
It＋系动词＋形容词＋主语从句
说明
常用于此句型的形容词有important，(un)likely，
possible，necessary，natural，wrong等。
常用于此句型的名词有fact，idea，honour，
question，pity等。
常用于此句型的过去分词有known，proved，
said，decided，suggested，thought等。
常用于此句型的动词有appear，happen，seem，
occur，matter等。
when，where，how，why等
在从句中作时间、地点、方式、原因状语等成
分。
It＋系动词＋名词＋主语从句
It＋系动词＋过去分词＋主语从句
It＋不及物动词＋主语从句
It’s possible that we work out the math problem.
我们有可能算出这道数学题。
It was a pity that you didn’t attend the meeting.
你没参加这次会议太可惜了。
It is suggested that the meeting be put off.
有人建议会议延期召开。
It seems that it is going to rain.
看起来好像要下雨。
考点警示
1．从句的语序：在任何情况下，主语从句都用陈述语序。
Whichever of you gets here first will get the prize.
你们谁第一个到达这里谁就获奖。
2．主谓一致
(1)从句作主语时，主句的谓语一般用单数形式；但what和who引导主语从句时，有时主句
谓语的数应与主句中作表语的名词保持一致。
When we shall have our sports meeting has not been decided.我们什么时候应该开运动会还没有
确定。
What they need are books.他们需要的是书。
(2)由and连接两个或两个以上的主语从句作主语时，谓语动词用复数；由两个或多个连接词
引导一个主语从句时，谓语动词用单数。
When they will start and where they will go have not been decided yet.
他们什么时候动身以及要去哪里还没定下来。
How and why he came to this city is a story of struggle and success.
他为什么及如何来到这个城市是一个充满奋斗和成功的故事。
3．whether引导的主语从句，如果用了形式主语it，引导词whether可以换成if。如果whether
从句在句首或后面有or not时，不能用if替换。
Whether genetically-modified food does us harm remains to be seen.
＝It remains to be seen whether/if genetically-modified food does us harm.
转基因食物对我们是否有害还有待观察。
名师点津 名词性从句引导词的确定步骤：
(1)分析句式结构，明确名词性从句在句中的功能；
(2)明确名词性从句所表达的意义；
(3)明确名词性从句中所需要的成分及意义；
(4)确定从句的引导词。
高考链接
单句语法填空
1．Every year，whoever makes the most beautiful kite will win a prize in the Kite Festival.
(2017·北京)
2．It is often the case that anything is possible for those who hang on to hope.(2016·江苏)
3．Your support is important to our er you can do helps.(2016·北京)
4．How we understand things has a lot to do with what we feel.(2015·北京)
5．Where Li Bai，a great Chinese poet，was born is known to the public，but some won’t accept
it.(2015·江苏)
6．Exactly when the potato was introduced into Europe is uncertain，but it was probably around
1565.(2014·大纲全国)
7．I think what impresses me about his painting is the colours he uses.(2014·天津)
Ⅰ.单句语法填空
1．That we are invited to the concert this evening is good news to us.
2．It doesn’t matter whether you pay by cash or credit card in this store.
3．What you said at the meeting describes a bright future for the company.
4．It is necessary that he should learn about the whole matter.
5．Whoever sticks to his work will succeed sooner or later.
6．Where cars will be parked in the future is a question.
7．It was a pity that you missed the film.
8．How we can get in touch with him is the most important.
Ⅱ.单句改错(每小题仅有1处错误)
9.
If
we will give up the plan isn’t decided.
Whether
What
10. the boy is always late for school is clear to us all.
That
That
11. we cannot get seems better than what we have had.
What
12．It is believed
what
the heavy fog does harm to our health.
that
that
he will attend the meeting or not.
whether
13．It will make no difference
Ⅲ.语法填空(用适当的连接词填空)
Everyone knew Wendy was a famous writer，but no one knew she came from
and r she was born in 1961 was still a they did know was she
was loved by poor people because she always helped r was in need of was
generous and helpful，but some people thought she was chasing said she didn’t
understand they were so narrow-minded，but it didn’t matter others thought of
just wanted to do (ever) she thought was right.I think that is the meaning
of life lies.