高中英语主语从句.ppt
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人教高中英语必修3Unit3主语从句(共29张PPT)
1.何时开会还没有决定。 When the meeting will begin _h_a_s__ (have) not been decided yet . 2.他们何时出发和他们去哪里还没有决定。
When they will start and where they will go_a_r_e__(be)still unknown.
作状语
地状：where （哪里） 原状：why（为什么）
方式状语：how（怎样）
Challenge other students by asking any questions you can’t understand.你可以向其他 组的同学提出任何关于主语从句的问题。有效 提问其所在的组加1分，答对问题者其所在的 组加1分,否则提问者所在的组可再加1分。
4. 主语从句作主语时，谓语动词一般用单 数形式。 5.有时为了使句子结构平衡, 避免 “头重脚 轻”,常用 it 作形式主语,而把从句放在面. 4种句型。
1.我的收获： 2.我的遗憾及补救措施：
Write a short passage about your life in ten years including family, work and spare time life, using at least five subject clauses.
4) 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_i_s__re__p_o_r_te__d_t_h_a_t__(据报道)20 people were killed in the accident.
When they will start and where they will go_a_r_e__(be)still unknown.
作状语
地状：where （哪里） 原状：why（为什么）
方式状语：how（怎样）
Challenge other students by asking any questions you can’t understand.你可以向其他 组的同学提出任何关于主语从句的问题。有效 提问其所在的组加1分，答对问题者其所在的 组加1分,否则提问者所在的组可再加1分。
4. 主语从句作主语时，谓语动词一般用单 数形式。 5.有时为了使句子结构平衡, 避免 “头重脚 轻”,常用 it 作形式主语,而把从句放在面. 4种句型。
1.我的收获： 2.我的遗憾及补救措施：
Write a short passage about your life in ten years including family, work and spare time life, using at least five subject clauses.
4) 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_i_s__re__p_o_r_te__d_t_h_a_t__(据报道)20 people were killed in the accident.
高中英语语法——主语从句课件(57张)
whatever=anything that whoever=anyone who
引导词
4) 连接副词when, where, how ,why • When we will leave hasn’t been decided. • How she keeps healthy is a secret.
Whether he will come makes no difference. What we need is more time.
引导词
1) 从属连词that和whether： • That he will come is certain. • Whether he will come is uncertain.
• What we need is more time.
• Which book I shall choose hasn’t been decided.
引导词
3)连接代词whoever, whatever, whichever • Whoever comes is welcome. • Whatever I have is yours. • Whichever you want is yours.
_____ that 只起引导作用，本身无意义，不充当 任何分，但不能省略。 whether 不做成分，表“_______ 是否 ”。 在主语从句中只能用 _________, ___ whether 不能用if
引导词
2) 连接代词who, what, which • Who will go makes no difference.
1. 令人吃惊的是他改变了主意。 It is a surprise that he changed his mind. 2. 真可惜你错过了这么一个好机会。 It is a pity that you missed such a good chance. 3. 事实是我们周围的污染正变得越来越严重。 It is a fact that the pollution around us is becoming more and more serious.
引导词
4) 连接副词when, where, how ,why • When we will leave hasn’t been decided. • How she keeps healthy is a secret.
Whether he will come makes no difference. What we need is more time.
引导词
1) 从属连词that和whether： • That he will come is certain. • Whether he will come is uncertain.
• What we need is more time.
• Which book I shall choose hasn’t been decided.
引导词
3)连接代词whoever, whatever, whichever • Whoever comes is welcome. • Whatever I have is yours. • Whichever you want is yours.
_____ that 只起引导作用，本身无意义，不充当 任何分，但不能省略。 whether 不做成分，表“_______ 是否 ”。 在主语从句中只能用 _________, ___ whether 不能用if
引导词
2) 连接代词who, what, which • Who will go makes no difference.
1. 令人吃惊的是他改变了主意。 It is a surprise that he changed his mind. 2. 真可惜你错过了这么一个好机会。 It is a pity that you missed such a good chance. 3. 事实是我们周围的污染正变得越来越严重。 It is a fact that the pollution around us is becoming more and more serious.
高中英语主语从句讲解课件(36张ppt)
+(should) +do…
*_I_t_i_s_p_o_s_s_i_b_le__th__a_t _(很可能)she will come back tomorrow. *__It_i_s_o__b_v_io_u_s__th__a_t _(很明显)this measure is effective.
3) It + be +过去分词+从句
4.The reason why I study hard is that I want to go to a
key university. 表语从句
5.They believe in that she must still be single. 6.I know nothing about him except that he is living in
找出错误，并给出理由： 1.Where shall we spend the holiday isn’t
decided. we shall 2.You have made a mistake is a fact.
That you have 3. If the policeman will come is not certain.
Beijing 7. I don’t know whether he’s free or not. 8. Mary asked whether I was doing my homework or not. 9. I’m thinking of whether we should go fishing. 10. We are worried about whether it will rain tomorrow.
killed in the accident.
*_I_t_i_s_p_o_s_s_i_b_le__th__a_t _(很可能)she will come back tomorrow. *__It_i_s_o__b_v_io_u_s__th__a_t _(很明显)this measure is effective.
3) It + be +过去分词+从句
4.The reason why I study hard is that I want to go to a
key university. 表语从句
5.They believe in that she must still be single. 6.I know nothing about him except that he is living in
找出错误，并给出理由： 1.Where shall we spend the holiday isn’t
decided. we shall 2.You have made a mistake is a fact.
That you have 3. If the policeman will come is not certain.
Beijing 7. I don’t know whether he’s free or not. 8. Mary asked whether I was doing my homework or not. 9. I’m thinking of whether we should go fishing. 10. We are worried about whether it will rain tomorrow.
killed in the accident.
高中英语主语从句讲解课件(共36张PPT)
2.That they should like each other is natural. _I_t _is__n_a_tu__ra_l_t_h_a_t_t_h_e_y_s_h_o_u__ld__li_k_e_e_a_c_h__o_th__er.
这样就构成了下面一些常用句型: 1) It is + n. +从句
(四). 判断以下句子是否正确： They should like each other is natural. 错误
That they like each other is natural. 正确
It is natural that they like each other. 正确
That引导的主语从句放句首，既不充当成分又无意义， 但that不能省去。
名词性从句包括： 宾语从句：介宾结构；动宾结构 表语从句：系表结构(系动词后面跟一个从句) 主语从句: 一个句子做主语 同位语从句：对名词进行解释说明
判断下列从句： 1.China is no longer what she used to be. 2.The question remains whether they will be able to help us. 3.It seemed as if I couldn't think of the right word.
When they will leave is not decided.
(4). 连接代词：who(谁，主格); whom(谁；宾格); whose(谁的); what(什么…事/话…); which(哪一个); whoever(无论谁), whatever(无论什么), whichever(无论哪一个) 在句子中担任主语， 宾语，表语或定语
这样就构成了下面一些常用句型: 1) It is + n. +从句
(四). 判断以下句子是否正确： They should like each other is natural. 错误
That they like each other is natural. 正确
It is natural that they like each other. 正确
That引导的主语从句放句首，既不充当成分又无意义， 但that不能省去。
名词性从句包括： 宾语从句：介宾结构；动宾结构 表语从句：系表结构(系动词后面跟一个从句) 主语从句: 一个句子做主语 同位语从句：对名词进行解释说明
判断下列从句： 1.China is no longer what she used to be. 2.The question remains whether they will be able to help us. 3.It seemed as if I couldn't think of the right word.
When they will leave is not decided.
(4). 连接代词：who(谁，主格); whom(谁；宾格); whose(谁的); what(什么…事/话…); which(哪一个); whoever(无论谁), whatever(无论什么), whichever(无论哪一个) 在句子中担任主语， 宾语，表语或定语
高中语法主语从句优秀课件
2 I_t_i_s_b_e__li_e_v_e_d__th__a_t__(人们相信)we should eat more vegetable and do more exercise.
【Pay attention to that, whether/if,what, 】 1. that 在主语从句只起引导作用，本身无实 际意义，在主语从句中不充当任何成分，但 不能省略。 2. whether/if "是否" 在主语句中不做成分， 不能省略，放句首只能用whether, 不能用if. 3.what引导的主语从句除了起到引导从句的 作用外，还要承担具体的意义，what还会作 句子成分。
pronoun代词
5. That we will be late is certain.
6. It is certain that we shall be late. A sentence served as(充当) subject is called
Subject Clause.
【例句呈现】 观察下列例句，指出其中所包含的主语 从句及连接词: 1. What is needed for a long trip is careful preparation. 该句中主语从句是 _W__h_a_t_i_s_n_e_e_d_e_d_f_o_r_a_ _l_o_n_g_t_r_ip__，连接词为 _w_h_a_t_。
2. That Taylor Swift will come to my city
excites everybody. 该句中主语从句是 _T_h_a_t_T_a_y_l_o_r_S_w__if_t_will c_o_m__e_t_o_m__y_c_i_ty__，连接词为__th_a_t_。 3. Whether we will travel abroad or not
【Pay attention to that, whether/if,what, 】 1. that 在主语从句只起引导作用，本身无实 际意义，在主语从句中不充当任何成分，但 不能省略。 2. whether/if "是否" 在主语句中不做成分， 不能省略，放句首只能用whether, 不能用if. 3.what引导的主语从句除了起到引导从句的 作用外，还要承担具体的意义，what还会作 句子成分。
pronoun代词
5. That we will be late is certain.
6. It is certain that we shall be late. A sentence served as(充当) subject is called
Subject Clause.
【例句呈现】 观察下列例句，指出其中所包含的主语 从句及连接词: 1. What is needed for a long trip is careful preparation. 该句中主语从句是 _W__h_a_t_i_s_n_e_e_d_e_d_f_o_r_a_ _l_o_n_g_t_r_ip__，连接词为 _w_h_a_t_。
2. That Taylor Swift will come to my city
excites everybody. 该句中主语从句是 _T_h_a_t_T_a_y_l_o_r_S_w__if_t_will c_o_m__e_t_o_m__y_c_i_ty__，连接词为__th_a_t_。 3. Whether we will travel abroad or not
高中英语主语从句讲析课件可修改全文
2. It is true that the earth moves around the sun.
3. It is a pity that I missed the train.
4. It doesn’t matter whether he will come or not.
5. It seems that it is going to rain.
It’s likely/possible/important/necessary/clear that 很可能/重要的是…/必要的是…/很清楚… It+ be +名词+ that 从句 It’s no wonder that…并不奇怪/无疑
It’s a pity/a fact /a common knowledge (众所周知） / a common saying（俗话说）that It+ be + 不及物动词+ that从句 It seems/appears/happens that…显然、明显、碰巧
matter much.
if, whether都可表示“是否”, 但if不能引 导位于主句之前的主语从句，它可以引导 位于主句之后带有形式主语it的主语从句。
3. TWhhaatt the professor said is of great importance.
that引导主语从句时无词义。What the professor said表示“教授所说的”。
6. It happened that they didn’t know my address.
请你归纳 ？
T——h—a—t —a—s—t—o—r—m——is——c—o—m—i—n—g
is well reported
3. It is a pity that I missed the train.
4. It doesn’t matter whether he will come or not.
5. It seems that it is going to rain.
It’s likely/possible/important/necessary/clear that 很可能/重要的是…/必要的是…/很清楚… It+ be +名词+ that 从句 It’s no wonder that…并不奇怪/无疑
It’s a pity/a fact /a common knowledge (众所周知） / a common saying（俗话说）that It+ be + 不及物动词+ that从句 It seems/appears/happens that…显然、明显、碰巧
matter much.
if, whether都可表示“是否”, 但if不能引 导位于主句之前的主语从句，它可以引导 位于主句之后带有形式主语it的主语从句。
3. TWhhaatt the professor said is of great importance.
that引导主语从句时无词义。What the professor said表示“教授所说的”。
6. It happened that they didn’t know my address.
请你归纳 ？
T——h—a—t —a—s—t—o—r—m——is——c—o—m—i—n—g
is well reported
名词性从句之主语从句课件-2025届高三英语上学期一轮复习专项
Whether it will do us harm or good remains to be seen.
他是否去那里还没有被决定。
Whether he will go there has not been decided. 他有没有去那里还没有被告知。 Whether he has gone there has not been told yet.
1. that引导
• That he is still alive is a wonder. • That we shall be late is certain. • That he should have ignored the working class
was natural. 他忽视工人阶级是很自然的。 • That she is still alive is a consolation.
• What struck me was that they have all suffered a lot.
• What caused the accident remains unknown.
4.连接代词who,whoever,whom,whose
• Who will be our monitor hasn't been decided yet.
哪匹马先到哪匹马赢。 Whichever horse comes in first wins.
她要去的地方是曼彻斯特。
Where she went was Manchester.
主语从句与形式主语it
有时为了考虑句子平衡，通常在主语从句处使用形 式主语it，而将真正的主语从句移至句末，分以下 情况：
这件事怎样发生的，谁也不清楚。
他是否去那里还没有被决定。
Whether he will go there has not been decided. 他有没有去那里还没有被告知。 Whether he has gone there has not been told yet.
1. that引导
• That he is still alive is a wonder. • That we shall be late is certain. • That he should have ignored the working class
was natural. 他忽视工人阶级是很自然的。 • That she is still alive is a consolation.
• What struck me was that they have all suffered a lot.
• What caused the accident remains unknown.
4.连接代词who,whoever,whom,whose
• Who will be our monitor hasn't been decided yet.
哪匹马先到哪匹马赢。 Whichever horse comes in first wins.
她要去的地方是曼彻斯特。
Where she went was Manchester.
主语从句与形式主语it
有时为了考虑句子平衡，通常在主语从句处使用形 式主语it，而将真正的主语从句移至句末，分以下 情况：
这件事怎样发生的，谁也不清楚。
2025届高三英语一轮复习主语从句课件
__W_h_o____the letter was from is still unknown.
Every year, __w__h_o_ev_e_r____ makes the most beautiful kite will win a prize in the Kite Festival.
it 形 式 主 语
it 形 式 主 语
It is possible that she will come back tomorrow .
it is + 过去分词. + that ...
it is + 名 + that ...
03
02
形式主语
01
it is + 形 + that ...
04
it 不及物动词+ that ...
it be + 形 + that ...
necessary; certain; right; clear; possible; (un)likely stange; obvious; important; .......
it be + 名 + that ...
a pity; a shame; a wonder; an honor; a fact; no wonder; no surprise .....
• It doesn’t matter/makes no difference (没有影响/毫无区别)+引导词
It doesn't matter whether you turn right or left at the crossing---both roads lead to the park.
主语从句公开课PPT
添加 标题
主语从句可充当句子的主语。
添加 标题
主语从句的语序：为了避免头重脚轻，通常把形式主语it放在句首位置，真正主语放在句末。
添加 标题
主语从句在句中起名词性作用，是一个完整的句子，表达完整的意思，引导主语从句的词语除that、 whether以及疑问词外，连词if、whether和关系代词who、whom、whose、what、which等在主语从句中 不充当任何成分。
主语从句与形式 主语it的区别
主语从句的时态问题
主语从句的时态要与主句保持 一致
主句是现在时，从句可以用任 何时态
主句是过去时，成时，从句要用 过去的相应时态
主语从句的练习与解析
主语从句的专项练习
判断题：分析句 子结构，判断是 否为主语从句
改错题：找出句 子中的错误并进 行修改
副词性从句
写作中主语从句 的作用：使文章 更加生动、具体， 丰富文章的内容， 避免冗长和复杂
句式
写作中使用主语 从句的注意事项： 主语从句的连接 词选择要恰当， 主语从句的时态 要正确，主语从 句的主谓要一致。
总结与展望
主语从句的重要性和应用价值
掌握主语从句的引导词
理解主语从句的时态和语序
理解主语从句的定义和构成
YOUR LOGO
主语从句公开课 PPT
WPS,a click to unlimited possibilities
汇报人：WPS
汇报时间：20X-XX-XX
主语从句简介
主语从句的常见 问题
主语从句的基本 形式
主语从句的练习 与解析
主语从句的用法 总结与展望
主语从句简介
什么是主语从句
分类：根据引导词的不同， 主语从句可分为三类
人教高中英语必修3Unit4Astronomythescienceofthestars主语从句课件
从句常用虚拟语气should + do，表示理应如此、 惊讶等语气。
⑵ It + be + n. + that 从句
It was a pity _t_h_a_t__ you didn’t pass the exam. 非常荣幸我能在这里给大家演讲。 It is a great honour that I can give a speech to all
Exercise:
• 1). _W__h_a_t____ you have done might be harmful to other people.
• 2).__T_h_a_t _ light travels faster than sound is common knowledge.that引导主语从句时不可省略
All in all, how we can improve our English grades depend on whether hard we work.
• 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.
⑵ It + be + n. + that 从句
It was a pity _t_h_a_t__ you didn’t pass the exam. 非常荣幸我能在这里给大家演讲。 It is a great honour that I can give a speech to all
Exercise:
• 1). _W__h_a_t____ you have done might be harmful to other people.
• 2).__T_h_a_t _ light travels faster than sound is common knowledge.that引导主语从句时不可省略
All in all, how we can improve our English grades depend on whether hard we work.
• 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.
主语从句超全ppt课件
第二讲：主语从句的引导词及各 类主语从句
主语从句在复合句中作句子的主语。 引导主语从句的词有从属连词that, whether, if；连接代词who, whoever, whom, what, whatever, whose, which； 连接副词when, where, how, why等。
surprise/no wonder难怪/good news/a good thing/a question /that… …是事实
It is common knowledge that… …是常识
*_It__is__a__p_it_y__th__a_t_(很遗憾)we lost the match.
句子
简单句 复合句
并列句
形容词性从句 名词性从句 副词性从句
定语从句
主语从句 subject clause
宾语从句 object clause
表语从句 predicative clause
同位语从句 appositive clause
比较状语从句 地点状语从句 时间状语从句 让步状语从句 条件状语从句 目的状语从句 方式状语从句 结果状语从句 原因状语从句
*____I_t _is_r_e_p_o_rt_ed__th_a_t_(据报道)20 people were killed in the accident.
*___It_i_s_s_u_g_g_es_t_e_d_th_a_t__(建议)we should eat more vegetable and do more exercise.
特殊疑问句作主语
• 需要先将疑问句的倒装语序变成陈述句语 序。
Why dinosaurs became extinct is still a mystery.
高中英语语法---主语从句课件(共29张)
表语从句 1. 表语从句就是用一个句子作为表语。 主语 + 连系动词 + 一个句子作表语---表 语从句
The problem is when we can get a pay rise. 2. 连接表语从句的连接词有：that, what, who, when, where, which, why, whether, how.
从句, 介词的宾语从句和形容词的宾语 从句.
1. 动词的宾语从句 大多数动词都可以带宾语从句. We all expect that they will win, for members of their team are stronger. 我们都预料他们会赢, 因为他们的队员 更强壮.
He told us that they would help us though the whole work. 他告诉我们在整个工作中, 他都会帮忙的.
2. 介词的宾语从句 用wh-类的介词宾语从句 We are talking about whether we admit students into our club. 我们正在讨论是否让学生加入我们的俱乐 部. The new book is about how Shenzhou 6 manned spaceship was sent up into space. 这本新书是关于神州6号载人航天飞船是 如何升如太空的.
4. It is strange that the man should have stuck to his silly ideas.
5. It is a pity that we won't be able to go to the south to spend our summer vacation. 6. It is still a mystery what caused the accident.
高考英语语法主语从句课件
例:(1).When we’ll start tomorrow will be told soon. (2).Where we can buy oxen is something we need to find out. (3).Why he came here is not known. (4).How we can protect the grain from damp needs to be discussed. (5).How many people died from starvation that
It has not been decided where the meeeting is to be held. 在哪里开会还没决 定。 It is sheer luck that the miners are still alive 10 days after. 十天后矿工还活着完全是靠 运气。
插入语
What makes this slump different from the last, he says, is that there are still buyers in the market.
谓语
表语从句
解密句
What makes this slump different from the last, he says, is that there are still buyers in the market.
will be produced next year. (5).Whatever he said was right. (6).Whoever goes there must get ready by 6
o’clock.
3）主语从句中用陈述语序,后面的谓语动词用第三人称单数 4）“what”引导主语从句时，谓语动词：
It has not been decided where the meeeting is to be held. 在哪里开会还没决 定。 It is sheer luck that the miners are still alive 10 days after. 十天后矿工还活着完全是靠 运气。
插入语
What makes this slump different from the last, he says, is that there are still buyers in the market.
谓语
表语从句
解密句
What makes this slump different from the last, he says, is that there are still buyers in the market.
will be produced next year. (5).Whatever he said was right. (6).Whoever goes there must get ready by 6
o’clock.
3）主语从句中用陈述语序,后面的谓语动词用第三人称单数 4）“what”引导主语从句时，谓语动词：
高一英语主语从句课件人教新课标必修1
D. It+seem, happen等不及物动词及短语+that从句。如： It happened that I was out that day. E. It+doesn’t matter (makes no difference, etc.)+连接代词或连接副词引起的主语从句。如： It doesn’t matter whether she will come or not.
3.主语从句的 “that” 一般不能省。
4.“what”引导主语从句时，谓语动词： 1）常与其后的名词作表语一致 2）根据句子的语境而定。
4. 主语从句需注意的问题
2.主语从句中用陈述语序
1.Where shall we spend the holiday isn’t decided.
2.You have made a mistake is a fact.
4. It’s known to us all ___ a form of energy . A. water is B. that water is C. is water D. that water to 5. It worried her a bit ___ her hair was turning gray. A. whether B. that C. what D. when 6.What I say and think ___ none of your business. A. is B. are C. has D have
3.___ is known to us all is that America is a developed country____the First World. Which; belong to b. As, belonged to c. What; belonging to d. It; belonging to
3.主语从句的 “that” 一般不能省。
4.“what”引导主语从句时，谓语动词： 1）常与其后的名词作表语一致 2）根据句子的语境而定。
4. 主语从句需注意的问题
2.主语从句中用陈述语序
1.Where shall we spend the holiday isn’t decided.
2.You have made a mistake is a fact.
4. It’s known to us all ___ a form of energy . A. water is B. that water is C. is water D. that water to 5. It worried her a bit ___ her hair was turning gray. A. whether B. that C. what D. when 6.What I say and think ___ none of your business. A. is B. are C. has D have
3.___ is known to us all is that America is a developed country____the First World. Which; belong to b. As, belonged to c. What; belonging to d. It; belonging to
人教版高中英语必修五unit 2 grammar讲解——主语从句(共24张PPT).
A. What little B. So much C. How much D. So little
A
A. How B. Although C. Since D. While
A
3. The world’s greatest sporting event, the Olympic Games, upholds the amateur ideal that _____ matters is not winning but participating.
以主语从句作主语的主谓一致问题
Problems of concord with a nominal clause as subject
When the subject is a nominal clause introduced by what, who, which, how, etc, the verb usually takes the singular form. But when the subject complement is plural, or when the what-clause is plural in meaning, the verb of the main clause can be plural.
It is a pity that she has made such a decision.
It is no doubt that Mary will take over the business.
2. It is +a.+clause… obvious/certain/likely/~ing
7. why, how Why there is gravity is hard to understand. How he can earn a living in Britain remains a big problem.
A
A. How B. Although C. Since D. While
A
3. The world’s greatest sporting event, the Olympic Games, upholds the amateur ideal that _____ matters is not winning but participating.
以主语从句作主语的主谓一致问题
Problems of concord with a nominal clause as subject
When the subject is a nominal clause introduced by what, who, which, how, etc, the verb usually takes the singular form. But when the subject complement is plural, or when the what-clause is plural in meaning, the verb of the main clause can be plural.
It is a pity that she has made such a decision.
It is no doubt that Mary will take over the business.
2. It is +a.+clause… obvious/certain/likely/~ing
7. why, how Why there is gravity is hard to understand. How he can earn a living in Britain remains a big problem.
主语从句讲解+课件-2025届高三英语上学期一轮复习专项
练习
• 11. _______ they are planning to move to a new city is a possibility. • 12. _______ he passed the exam with flying colors pleased his parents. • 13. _______ you are late for school again is unacceptable. • 14. _______ the economy will recover next year is still uncertain. • 15. _______ she will accept the job offer is uncertain at the moment.
4. 必须用 it 作形式主语的主语从句
• 当主语从句较长或者结构较为复杂时，为了避免句子显得头重脚轻，通常使
用 it 作为形式主语，而将从句放在句子的后半部分。
• - It is clear that he has made a mistake. • - It is uncertain whether they will arrive on time. • - It is important that you should study hard. （你努力学习是很重要的。） • - It is unknown whether he will accept the job offer. （他是否会接受这份工作邀
答案
• 11. That they are planning to move • 12. That he passed the exam • 13. That you are late for school • 14. Whether the economy will recover • 15. Whether she will accept the job offer
人教版高中英语必修三unit4语法(9张PPT)
*__It_i_s_r_e_p_o_r_t_e_d_t_h_a_t___(据报
道)20peoplewerekilledintheaccident.
*_I_ti_s_s_u_g__g_e_s_t_e_d_t_h_a_t_____(建
议)weshouldeatmorevegetableanddomoreex
e注rc意is3e：. 主语为从句时，谓语动词一般要用单数形 式；但如果what引导的从句做主语，并且代表复 数概念（常可从表语上看出），则谓语动词常用 复数形式
Whatweneed___i_s____water.我们所需要的是水。 Whatweneed________usefulbooks.我们所需要 的是一些有用的书a。re
高中英语课件
madeofcanruohanxing
SubjectClauses 主语从句
1.主语从句概念 主语从句就是从句在主句中作主语的名词性从句。
2.ConjunctionsofNounClauses(引导主语从句的
关联词):
从属连词 that,whether,（注意if不 (不作成分） 能引导）
连接代词 wቤተ መጻሕፍቲ ባይዱat,who,which,whom, （作成分） whose,wh+ever
连接副词 （作状语） when,where,how,why
3.主语从句注意事项
注意1：that在从句中只起连接作用，不充当句子 成分，且本身无实际意义。
whether在从句中起连接作用，不充当句子成分， 不能用if代替.
It’sapity/ashame//afact/goodnews/nowonder/ acommonknowledge…that…(遗憾的是/事实是/ 好消息//难怪/众所周知）
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Grammar
Subject（主语）
1. You are a student. 2. Smoking is bad for you. 3. To find your way can be a problem. 4. “How do you do?” is a greeting. 5 .What she said is not yet known. 6. That we shall be late is certain. 7. It is certain that we shall be late.
表语从句
The news that we won the game is exciting.
同位语从句
Noun Clauses (名词性从句)
Subject Clause (主语从句)
Object Clause （宾语从句）
Predicative Clause （表语从句）
Appositive Clause （同位语从句）
It is reported that... 据报道……
It is believed that...据信……;人们相信……
It is suggested that + (should）do... 建议……
It must be admitted that…必须承认……
It cannot be denied that… 不可否认……
It makes no difference whether
T or F questions
：They should like each other is natural. ：That they should like each other is
natural. ：It is natural that they should like
名词性从句的作用相当于名词，因此主语从 句、表语从句 、宾语从句和同位语从句分别 作主句的主语、表语、宾语和同位语。
Who will win the match is still unknown.
主语从句
I want to know what he has told you.
宾语从句
The fact is that we have lost the game.
Complete the sentences using what, whether,
where, when， who, why, how or that.
1.(_W_h_a_t_ is needed for success) is your hard work.
2.( When/Howthey will arrive )has been told to the teacher. 3.( Where/whether we will go tomorrow )hasn’t been decided yet.
A sentence served as subject is called
Subject Clause.
主语从句
定义：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。
导主语从句的有连词that ，whether， 连接代 词who ，what ，which， 连接副词when，where， how， why等。
引导主语从句在句首只能用whether, Conclusion: 有it作形式主语的whether/if都可以.
注意: 由that 引导的主语从句有时为了使句
子结构平衡, 避免 “头重脚轻”, 常用 it 作形式
主语, 而把从句放在后面。 例如:
1. That he will refuse this piece of advice is impossible. __I_t _is__im__p_o_s_s_i_b_le__th_a_t_h__e_w_i_ll_r_e_f_u_s_e_t_h_i_s_p_i_e_c_e __o_f_a_d_v_i_c_e_._____________________________
*_I_t_i_s_p_o_s_s_i_b_le__th__a_t _(很可能)she will come back tomorrow. *__It_i_s_o__b_v_io_u_s__th__a_t _(很明显)this measure is
effective.
※ 主语从句的虚拟语气
①表 “应该，惊讶、惋惜、遗憾”等意义 It is important /natural /necessary/impossible/strange that... 谓语形式为:should + V.原形 , should可省略。 eg. 很奇怪，他竟没有来。
4.(_W__h_o__ can join in the sport meet) is decided by the teacher.
5.(_W__h_e_th_e_r_ it will rain or not) is not clear. 6. (_W__h_y the earth is becoming warm) is a good topic for research.
each other. ：If Mary really heard him is really doubtful. ：It was doubtful if Mary really heard him.
2.连接代词who ，what ，which, whatever, whichever, whoever What many scientists believe is that the continued presence of water …
passengers_(s__h_o_u_l_d_)_b_e__s_e_a_r_c_h__e_d_.
3) It +不及物动词+从句
It happened that...
碰巧……
It occurred to me that…我突然想起…
*_I_t_h_a_p_p_e_n_e_d__t_h_a_t_(刚好)I came into the office at that time.
If ×
Whether the solid shape would last or not wa.s not clear.
if It was not clear whether the solid shape
would last or not.
Real Subject
Formed Subject
Subject Clause
7.(_T_h_a_t__ the earth is a solid ball) is known to us all. Conclusion: 主语从句作主语时，谓语动词一般用单数形式。
Summary:
Subject Clause
1. 用 that / whether / if/ /where / how / when /why / who /what/which/ how much / etc. 来连接主语从句. 2.That 在主语从句中不能省略.
3.引导主语从句在句首只能用whether,有it 作形式主语的whether/if都可以. 4.有时为了使句子结构平衡, 避免 “头重脚 轻”,常用 it 作形式主语,而把从句放在后 面.4种句型。 5.主语从句作主语时，谓语动词一般用单数 形式。
It must be pointed out that…需指出的是……
*_I_t_i_s__re_p__o_r_te__d_t_h_a_t__(据报道)20 people were
killed in the accident.
*__It__is__s_u_g_g__e_s_t_e_d__th_a__t __(建议)we should eat
more vegetable and do more exercise.
• 5)“无关紧要（的是）”
It doesn’t matter
+主语从句
It makes no difference
• 翻译：一个人是否富有无关紧要
_It_d_o_e_s_n_’_t_m__a_tt_e_r_w_h__e_th_e_rone is wealthy or not.
1）从属连词：that， whether等. that 引导主语从句只起引导作用，本身无实 际意义，在主语从句中不充当任何成分，但 不能省略。
That people cut down too many trees destroyed the balance of nature.
Whether life will continue on Байду номын сангаасhe earth for millions of years to come will depend on whether this problem can be solved.
Who will take part in the meeting has not been decided.
Whoever breaks the law will be punished.
Which student will win the first is uncertain.
3)连接副词when，where， how， why等。
Why they suddenly disappeared still remains a mystery. When they will set off is not decided. Where she is from is unknown. How we will paint the house has not been decided.