[精品课件]高中英语必修3Unit4主语从句 (共24张PPT)
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人教必修三 Unit4 主语从句详细讲解课件56PPT
that 只有引导定从才做成分
• 5．what与that在引导主语从句时的区别 • what引导主语从句时在从句中充当成分，如
主语、宾语、表语等；that则不作任何成分， 只起连接作用。
• ①What has made him mad is not known yet. • (what在从句中作主语) • ②What you said yesterday is right. • (what在从句中作said的宾语) • ③That she is still alive is a consolation. • (that不作任何成分)
(引导名词性从句的关联词):
从属连词 that, whether, if，
(不作成分）
连接代词 what, who, whom, （作成分） whose, which, wh+ever 连接副词 when, where,why,how
（作状语）
9
1.引导词 that
that放在句首引导主语从句，在主语从句中 不充当任何成分也无实际意义。但是不能省略。
It + be + 名词 ＋ that从句
It is a pity that… It is a surprise that …. It is a fact that……
遗憾的是…… 令人惊奇的是…… 事实是……
It + 不及物动词 ＋ that从句
It appears/seems that… 似乎……
★_W__h_a_t he offers is what I need.
★ _W__h_at__ they are most interested in is
how they can produce more and better cars.
人教高中英语必修3Unit4Subject-clause主语从句 (共25张PPT)
Faced with the failure in our life, what should we do?
What we should do is to……
What doesn’t kill you makes you stronger, stand a little taller.
What doesn’t kill you makes you a fighter.
called 《American Idol 》.
Summary1:
• 定义：主语从句是在复合句 中充当_____的从句。
• 主语从句要________ 语序。
Task2: (1)Complete the sentences:
• 1.W__h_at_ is important in our life is to have a great aim. 生活中重要的事情是有一个伟大的目标。
that
a
sparrowcana Nhomakorabeasofly
in
That they learn English so well is no wonder.
It is no wonder that they learn English so well.
On April 1st,2017 ,that China will establish (建立）
Summary 4:
一般来说，主语从句都是位于 _句_首___,但有时为了使句子 _________,避免“头重脚轻”,常 用___ 作形_式_主__语___,从而把主语从 句放到后面。
常用句型：
It is +adj. +that…… It is + n. + that…… It is + 过去分词 + that …… It happens/appears/seems/occurred to sb. that……
What we should do is to……
What doesn’t kill you makes you stronger, stand a little taller.
What doesn’t kill you makes you a fighter.
called 《American Idol 》.
Summary1:
• 定义：主语从句是在复合句 中充当_____的从句。
• 主语从句要________ 语序。
Task2: (1)Complete the sentences:
• 1.W__h_at_ is important in our life is to have a great aim. 生活中重要的事情是有一个伟大的目标。
that
a
sparrowcana Nhomakorabeasofly
in
That they learn English so well is no wonder.
It is no wonder that they learn English so well.
On April 1st,2017 ,that China will establish (建立）
Summary 4:
一般来说，主语从句都是位于 _句_首___,但有时为了使句子 _________,避免“头重脚轻”,常 用___ 作形_式_主__语___,从而把主语从 句放到后面。
常用句型：
It is +adj. +that…… It is + n. + that…… It is + 过去分词 + that …… It happens/appears/seems/occurred to sb. that……
人教新课标高中英语必修三 Unit4 Astronomy the science of the stars Grammar (共24张PPT)
Continue to look at 5
特殊强调: 用于It is +important / natural /
necessary / impossible /或表示建议要求命
令的词的过去分词+that...句型中, 主语从句
应使用虚拟语气, 谓语动词用\“should + 动 词原形”的形式。
Unit4 Grammar
名词性从句之主语从句
1.了解并掌握主语从句的相关概念
2.完成与主语从句相关的练习
3.重点：It
做形式主语的各种句式及虚 拟语气的使用。 4. 难点：引导主语从句的连接词的使 用。
找出下列各句的相似之处
1.What he did is surprising . 2. That we go swimming every day does us a lot of good. 3.When we'll finish translating the book depends on the time. 4.Whoever makes mistakes must correct them.
问题： 1.whenever/wherever能引导主语从句吗？
汉译英
4.老师今天说的话是十分正确的。
_______the teacher said today was quite right. 5.他们急需帮助，这是十分明显的。 _______ they are badly in need of help is quite clear.
3) It + be +过去分词+从句 It is said that... 据说…… It is known to all that... 众所周知…… It is reported that... 据报道…… It is believed that... 据信……;人们相信…… It is suggested that... 有人建议……
人教高中英语必修3Unit4reading(共24张PPT)
appeared.
with a “Big Bang”.
1121. Clever animals with 1112. Mammals appeared.
hands and feet appeared.
Talk about the impacts men make to the earth. 1.Good ones 2.Bad ones 3.What we should do?
God created the world in seven days.
The Biblical Account
Day 1: God spoke and separated light from darkness creating Day and Night.
Day 2: God spoke and separated the water creating sky and ocean.
• Para. 4 d.The arrival of humans and their
impact on the earth.
• Para. 5 e.The development of plants and
animals on the earth.
Read the passage quickly and answer the questions.
3. What made up the earth’s atmosphere after the earth exploded? Carbon dioxide, nitrogen, water vapour and other gases.
4. How did water come into being on the earth? As the earth cooled down after it exploded, water came into being.
人教版高中英语必修三 Unit 4 语法课件(共33张PPT)
The question is whether we can rely on him. That’s because we were in need of money at that time . He looked as if he was going to cry . That’s why I was late .
P64 USING STRUCTURE
Do you know where we come from? How did the universe begin? Read the passage and try to understand how Stephen Hawking solved the problems?
4. I hear they _h_a_v_e__r_e_t_u_rned (return) it already.
5. He said that they _h_a_d__b_e_e__n members of the Party since 1948. (be)
6. I didn’t know what time he __w__ro__t_e the letter. (write)
3. __W_h_y_ the universe exists the way it does is a major question to all those who have looked at stars like Hawking.
4. _W_h_a_t_ has developed over two thousand years of observation has to be greatly revised.
A. whether B. That C. what D. when
P64 USING STRUCTURE
Do you know where we come from? How did the universe begin? Read the passage and try to understand how Stephen Hawking solved the problems?
4. I hear they _h_a_v_e__r_e_t_u_rned (return) it already.
5. He said that they _h_a_d__b_e_e__n members of the Party since 1948. (be)
6. I didn’t know what time he __w__ro__t_e the letter. (write)
3. __W_h_y_ the universe exists the way it does is a major question to all those who have looked at stars like Hawking.
4. _W_h_a_t_ has developed over two thousand years of observation has to be greatly revised.
A. whether B. That C. what D. when
人教高中英语必修3unit4subject clause课件 (共26张ppt)
known.
4. __W__h_en___ the plane will arrive in London is uncertain.
5. ___W_h_o___ will be our monitor is hard to say.
规律1 主语从句一律用陈述语序
①Where will he go is not decided. ×( )
back
6.__A____ a girl survived the
earthquake is good news.
A . That
B . What
C . Whether
D . When
解析： 因主语从句句意、结构完整，故 用that引导。句意为：一个女孩在地震中 幸存，真是一个好消息。 错误，请改正并分析错误的原因。 1. Light travels faster than sound is That common knowledge.
②Where he will go is not decided. √( )
规律2 主语从句的主句谓语动词多用单数第三人称形式
①When he will come are a puzzle. (×)
②When he will come is a puzzle.
(√ )
规律3 what引导的主语从句，可根据表语决定动词的单复
If it will rain tomorrow is not sure.
( ×)
Whether it will rain tomorrow is not sure. (√ )
规律6
What happened to the Amber Room remains a mystery.
4. __W__h_en___ the plane will arrive in London is uncertain.
5. ___W_h_o___ will be our monitor is hard to say.
规律1 主语从句一律用陈述语序
①Where will he go is not decided. ×( )
back
6.__A____ a girl survived the
earthquake is good news.
A . That
B . What
C . Whether
D . When
解析： 因主语从句句意、结构完整，故 用that引导。句意为：一个女孩在地震中 幸存，真是一个好消息。 错误，请改正并分析错误的原因。 1. Light travels faster than sound is That common knowledge.
②Where he will go is not decided. √( )
规律2 主语从句的主句谓语动词多用单数第三人称形式
①When he will come are a puzzle. (×)
②When he will come is a puzzle.
(√ )
规律3 what引导的主语从句，可根据表语决定动词的单复
If it will rain tomorrow is not sure.
( ×)
Whether it will rain tomorrow is not sure. (√ )
规律6
What happened to the Amber Room remains a mystery.
人教版高中英语必修三单元四Unit4主语从句(共16张PPT)
When and where he was born is not clear.
他何时何地出生的还不清楚。
When they will start and where they will go have not been decided yet.
他们将在什么时间动身以及要去哪里还没有定 下来。
1. It is likely that he is the winner of this game.
•
3.It＋be＋过去分词＋that从句
(said, reported, thought, expected, believed等) It is said that Mr.Green has arrived in Beijing.
据说格林先生已抵达北京。
4.It＋不及物动词＋that从句
(seem, happen等) It happened that I was out that day.
•
4、All that you do, do with your might; things done by halves are never done right. ----R.H. Stoddard, American poet做一切事都应尽力而为，半途而废永远不行6.17.20216.17.202110:5110:5110:51:1910:51:19
主语从句
一、定义 主语从句是在复合句中作句子的主语。
What I want is a new bicycle. 我想要的是一辆新自行车。
二、主语从句的引导词
1. 连词that, whether (1)that在从句中不作成分,无词义,不能省略 That she could come to help us made us very happy.
他何时何地出生的还不清楚。
When they will start and where they will go have not been decided yet.
他们将在什么时间动身以及要去哪里还没有定 下来。
1. It is likely that he is the winner of this game.
•
3.It＋be＋过去分词＋that从句
(said, reported, thought, expected, believed等) It is said that Mr.Green has arrived in Beijing.
据说格林先生已抵达北京。
4.It＋不及物动词＋that从句
(seem, happen等) It happened that I was out that day.
•
4、All that you do, do with your might; things done by halves are never done right. ----R.H. Stoddard, American poet做一切事都应尽力而为，半途而废永远不行6.17.20216.17.202110:5110:5110:51:1910:51:19
主语从句
一、定义 主语从句是在复合句中作句子的主语。
What I want is a new bicycle. 我想要的是一辆新自行车。
二、主语从句的引导词
1. 连词that, whether (1)that在从句中不作成分,无词义,不能省略 That she could come to help us made us very happy.
人教版高中英语必修三课件：Unit4主语从句(共23张PPT)
13、He who seize the right moment, is the right man.谁把握机遇，谁就心想事成。21.8.2521.8.2504:38:2904:38:29August 25, 2021
•
14、谁要是自己还没有发展培养和教育好，他就不能发展培养和教育别人。2021年8月25日星期三上午4时38分29秒04:38:2921.8.25
{ 导 主语 His job is important. What he does is important. 主语从句的定义：
在句中充当主语的从句叫做主语从句。
Subject Clauses 主语从句
思Task1: Find the sentences which are subject clause in the reading passage, then underline the subject clauses.
• ①It+be+__形__容__词____+that从句
(obvious, true, natural, surprising, wonderful, possible, likely, certain, probable)
• Eg:显然他撒谎了。
___It__w_a_s__o_b__v_i_o_u_s__t_h_a_t_h__e_t_o_l_d__a_l_i_e_.______
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.What many scientist believe is that the continued
人教版高中英语必修三课件：Unit4 主语从句
(3) 主谓一致
is When he will come _______(be) a puzzle. When they will start and where they will go are ______(be) decided so far. is When and where they will go _____(be) decided so far. is that book. What he needs____
检
I. 用适当的连接词填空，使句子意思完整。
Why 1. __________ he didn't attend the meeting yesterday wasn't quite clear. 2. __________ Which team will win the match is still unknown. Whoever comes to the party will receive a present. 3. ___________ that 4. It's reported ___________ three people were killed in the accident How 5. _____________ he solved the problem successfully interested all of us. 6. ____________ Who/what is to be sent there to solve the problem hasn't been decided.
不及物动词及短语 ④It+__________+( 连接词不固定)从句
（seem/happen/appear/matter/turn out/occur to/makes no difference等） Eg:你今天来或者明天来都没关系。 ___________________________________ It doesn't matter whether you come today or tomorrow. ____________
人教版高一英语必修三unit4 grammar -主语从句 公开课(共20张ppt)
It
Summary
1. 如何划定主语从句？（位置） 2. That引导主语从句意义及成分 3. What引导主语从句意义及成分 4. 如何选用连接词？ ① 找到谓语，确定从句 ② 根据句意直接选择（例如whether），或者分析从句成分，不缺
成分用that，缺主要成分用连接代词，缺状语用连接副词。
1. 连词that在从句中无实际意义，但放在句首不能省略。 改错：He will win is certain.
That
常犯错误：遗漏that。 注意： 主语从句的连接词不能省略，缺什么成分 补什么成分，不缺成分用that
2. Whether可以引导主语从句，但if不能。 3. 主语从句放在句末时，句首用形式主语it代替。 改错：He is said that he has gone to America.
• It hasn’t been decided yet when the new restaurant will open. • It is still not clear how gold was found here. • It is hard to understand why there is gravity. • It is a pity that you have to leave so soon.
talk about
the use of cell phone
What they are talking about is the use of cell phone.
Step 3 It作形式主语
勾出主语从句，并完成下列句子转换 • 1）That the earth is round is true. = It is true
________________________. • 2) Whether he will come hasn’t been decided. = It hasn’t been
Summary
1. 如何划定主语从句？（位置） 2. That引导主语从句意义及成分 3. What引导主语从句意义及成分 4. 如何选用连接词？ ① 找到谓语，确定从句 ② 根据句意直接选择（例如whether），或者分析从句成分，不缺
成分用that，缺主要成分用连接代词，缺状语用连接副词。
1. 连词that在从句中无实际意义，但放在句首不能省略。 改错：He will win is certain.
That
常犯错误：遗漏that。 注意： 主语从句的连接词不能省略，缺什么成分 补什么成分，不缺成分用that
2. Whether可以引导主语从句，但if不能。 3. 主语从句放在句末时，句首用形式主语it代替。 改错：He is said that he has gone to America.
• It hasn’t been decided yet when the new restaurant will open. • It is still not clear how gold was found here. • It is hard to understand why there is gravity. • It is a pity that you have to leave so soon.
talk about
the use of cell phone
What they are talking about is the use of cell phone.
Step 3 It作形式主语
勾出主语从句，并完成下列句子转换 • 1）That the earth is round is true. = It is true
________________________. • 2) Whether he will come hasn’t been decided. = It hasn’t been
人教高中英语必修3Unit4主语从句课件(共24张PPT)
All in all, how we can improve our English grades depend on whether hard we work.
宾从、表从复习 • 1) I think t_h_a__t you are helpful and _t_h_a_t_ you
are a good friend.
• 2) Humans are curious about _h_o__w__ life began
on the earth.
• 3）My suggestion is _th__a_t_ we should read the
English texts every day.
• 4) Fighting for our dreams is _w__h_e_r_e_ the
What is more important is we should have a positive attitude to studying English. Everyone can make mistakes is possible. Thus, enjoy lose face and you’ll have more chances to improve your English quickly.
• 3)._W__h_e_t_h_e_r_ we will get good grades depends on whether we work hard表. “是否”只用whether
• 4) __W__h_y___ he didn’t come yesterday is unknown.
Exercise:
• 5). __W_h_o____ will take the place of Mr. White as the new CEO is being discussed .
宾从、表从复习 • 1) I think t_h_a__t you are helpful and _t_h_a_t_ you
are a good friend.
• 2) Humans are curious about _h_o__w__ life began
on the earth.
• 3）My suggestion is _th__a_t_ we should read the
English texts every day.
• 4) Fighting for our dreams is _w__h_e_r_e_ the
What is more important is we should have a positive attitude to studying English. Everyone can make mistakes is possible. Thus, enjoy lose face and you’ll have more chances to improve your English quickly.
• 3)._W__h_e_t_h_e_r_ we will get good grades depends on whether we work hard表. “是否”只用whether
• 4) __W__h_y___ he didn’t come yesterday is unknown.
Exercise:
• 5). __W_h_o____ will take the place of Mr. White as the new CEO is being discussed .
英语人教版必修3课件：Unit 4 Section Ⅲ Grammar——主语从句
7． How we can get in touch with him is the most important.
8．I read about it in some books or other. Does it matter which it was?
Ⅱ.补全句子 1． What impresses us most are (让我们印象最深的是) your art skills, in which you showed outstanding talent. 2． What surprises us most is (让我们最吃惊的是) that the water can remain at that temperature for about twenty hours. 3． It is reported that (据报道) 300 million people in China have eyesight trouble. 4． That she gave birth to a healthy baby (她生了一个健康 的婴儿) made the family very happy.
How this happened is not clear to anyone. 这件事怎样发生的，谁也不清楚。 When we will have a meeting is an important question. 我们何时举行会议是个重要的问题。 Where I spend my summer is no business of yours. 我在哪里过暑假不关你的事。 [名师点津] who 引导的主语从句表示一件“事情”，表示 特指；而 whoever 引导的主语从句指“人”，表示泛指。
that 从句
8．I read about it in some books or other. Does it matter which it was?
Ⅱ.补全句子 1． What impresses us most are (让我们印象最深的是) your art skills, in which you showed outstanding talent. 2． What surprises us most is (让我们最吃惊的是) that the water can remain at that temperature for about twenty hours. 3． It is reported that (据报道) 300 million people in China have eyesight trouble. 4． That she gave birth to a healthy baby (她生了一个健康 的婴儿) made the family very happy.
How this happened is not clear to anyone. 这件事怎样发生的，谁也不清楚。 When we will have a meeting is an important question. 我们何时举行会议是个重要的问题。 Where I spend my summer is no business of yours. 我在哪里过暑假不关你的事。 [名师点津] who 引导的主语从句表示一件“事情”，表示 特指；而 whoever 引导的主语从句指“人”，表示泛指。
that 从句
高一英语必修三Unit4课文主语从句Microsoft PowerPoint 幻灯片
翻译：更为重要的是，地球冷却了下来， 地球的表面就开始出现了水。
It 是形 式主语
It was not immediately obvious
主语从句
that water was to be fundamental that water was to be fundamental to the of life. (L18-20) todevelopment the development of life. 句子可改为：
主语从句
Sowhether whether life will continue life will continue on on thethe earth for millions years to tocome come will earth for millions of years depend on whether this problem can be solved.（L50-51） 翻译：所以，在未来的数百万年中，生命 能否在地球上延续取决于这个问题能否得 到解决。
（L21-25）
翻译：很多科学家相信，由于地球上长期 有水存在，使地球得以把有害气体和酸性 物质溶解在海洋里。
主语从句
Why disappeared still Whythey they suddenly suddenly disappeared remains a mystery.(L41-42) 它们为什么会突然灭绝至今仍是个谜。
That water was to be fundamental to the development of life was not immediately obvious. 水对生命的发展会起到关键作用，这一点在 当时并entists scientists believe What believe is that the continued presence of water allowed the earth to dissolve harmful gases and acids into the oceans and seas.
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Subjective Clause
主语从句
It was reported that the plane MH370 from Malaysia(马来西亚） suddenly disappeared on March 8th.
What we could do was just waiting and praying.
4）----He hasn’t slept at all for three days. ----It’s _n_o_w__o_n_d_e_r_ he is tired out.
观察二：观察以下由what引导的主语从句，
1.What the answer is remains unknown to
4. What you said at the meeting moved
me a lot 归纳：
1） what 在第三个例句中充当_主__语__成分 2） what在第四个例句中充当_宾__语___成分 3）在这两种情况里what=the+n+that 例如：What surprised me
=The thing that surprised me
Why the plane once changed its air line made people puzzled?
Whether the people in the plane were still alive was a myse plane can not come back has been a fact .
us.
2. What clothes I should wear in school is
limited
归纳：1) 第一个例句中what 充当表_语_____成分
2) 第二个例句中what充当定_语_____成分
3)在两个例句中，what翻译为w_h_a_t ___
主语
宾语
3. What surprised me is your coming.
1）It _o_c_c_u_rr_e_dto me that I had left my keys in the office
2）It _h_a_p_p_e_n_e_d_ that I was on the scene.
3）It __tu_r_n_e_d_o_u_t__ that he was a spy.
观察探究
Subjective Clause
观察一：画出下面句子里的主语从句
1. It is reported that the plane MH370 from Malaysia suddenly disappeared on March 8th. 2. Whether the people in the plane were still alive is a mystery.
3. What we can do is just waiting and praying
4. That the plane could not come back has been a fact . ..
归纳： (1)主语从句后面的谓语一般是_单__数__形式.
(2)主语从句中要用__陈__述_____语序。
travels around the earth.
3. _A__s __ is known to everyone, the moon travels around the earth.
Song’s Name: W__h__a_t_I_w__a_n_t__is__w__h_a_t_I_’_v_e_g__o_t_____
What you said at the meeting =_T_h_e__w_o_r_d_s_t_h_a_t _y_o_u_s_a_id__a_t_th_e__m_e_e_t_ing
Group work
Tasks
观察探究
Task one:
感悟疑点： what “PK” that
1. _T_h_a_t__she will return next week is certain. 2. W__h_a_t_ the astronauts want to do is walking in space. 3.They lost their way in the forest, and _w__h_a_t made matters worse was that night began to fall. 4._T__h_a_t___ no one likes his ideas is not strange at all.
Task three:
Fill in the blanks with “it, what, that, as”. 1. __I_t __ is known to us that the moon
travels
around the earth. 2. W__h_a_t_ is known to us is that the moon
. Rewrite the following sentences with a subject clause. 1.Do the other astronomers accept his ideas?
2.It remains a question.
Whether t_h_e__o_th_e_r__a_st_r_o_n_o_m__e_rs__a_c_ce_p_t__h_is_ i_d_e_a_s_r_e_m__a_in_s__a_q_u_e_s_t_io_n__
（3）主语从句一般位于谓语__之__前____. 为避免主语过长,可以把主语从句移到句子末尾 用___i_t ___作为句子主语,
常见的句型为 It is said/reported that据说/据报道 It occurred to sb that 某人刚刚想到….. It happened that 碰巧… It turned out that 证明是 It’s no wonder that 难怪…..
主语从句
It was reported that the plane MH370 from Malaysia(马来西亚） suddenly disappeared on March 8th.
What we could do was just waiting and praying.
4）----He hasn’t slept at all for three days. ----It’s _n_o_w__o_n_d_e_r_ he is tired out.
观察二：观察以下由what引导的主语从句，
1.What the answer is remains unknown to
4. What you said at the meeting moved
me a lot 归纳：
1） what 在第三个例句中充当_主__语__成分 2） what在第四个例句中充当_宾__语___成分 3）在这两种情况里what=the+n+that 例如：What surprised me
=The thing that surprised me
Why the plane once changed its air line made people puzzled?
Whether the people in the plane were still alive was a myse plane can not come back has been a fact .
us.
2. What clothes I should wear in school is
limited
归纳：1) 第一个例句中what 充当表_语_____成分
2) 第二个例句中what充当定_语_____成分
3)在两个例句中，what翻译为w_h_a_t ___
主语
宾语
3. What surprised me is your coming.
1）It _o_c_c_u_rr_e_dto me that I had left my keys in the office
2）It _h_a_p_p_e_n_e_d_ that I was on the scene.
3）It __tu_r_n_e_d_o_u_t__ that he was a spy.
观察探究
Subjective Clause
观察一：画出下面句子里的主语从句
1. It is reported that the plane MH370 from Malaysia suddenly disappeared on March 8th. 2. Whether the people in the plane were still alive is a mystery.
3. What we can do is just waiting and praying
4. That the plane could not come back has been a fact . ..
归纳： (1)主语从句后面的谓语一般是_单__数__形式.
(2)主语从句中要用__陈__述_____语序。
travels around the earth.
3. _A__s __ is known to everyone, the moon travels around the earth.
Song’s Name: W__h__a_t_I_w__a_n_t__is__w__h_a_t_I_’_v_e_g__o_t_____
What you said at the meeting =_T_h_e__w_o_r_d_s_t_h_a_t _y_o_u_s_a_id__a_t_th_e__m_e_e_t_ing
Group work
Tasks
观察探究
Task one:
感悟疑点： what “PK” that
1. _T_h_a_t__she will return next week is certain. 2. W__h_a_t_ the astronauts want to do is walking in space. 3.They lost their way in the forest, and _w__h_a_t made matters worse was that night began to fall. 4._T__h_a_t___ no one likes his ideas is not strange at all.
Task three:
Fill in the blanks with “it, what, that, as”. 1. __I_t __ is known to us that the moon
travels
around the earth. 2. W__h_a_t_ is known to us is that the moon
. Rewrite the following sentences with a subject clause. 1.Do the other astronomers accept his ideas?
2.It remains a question.
Whether t_h_e__o_th_e_r__a_st_r_o_n_o_m__e_rs__a_c_ce_p_t__h_is_ i_d_e_a_s_r_e_m__a_in_s__a_q_u_e_s_t_io_n__
（3）主语从句一般位于谓语__之__前____. 为避免主语过长,可以把主语从句移到句子末尾 用___i_t ___作为句子主语,
常见的句型为 It is said/reported that据说/据报道 It occurred to sb that 某人刚刚想到….. It happened that 碰巧… It turned out that 证明是 It’s no wonder that 难怪…..