主语从句讲解ppt课件

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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.

主语从句公开课ppt课件

没能击垮你的造就一名勇
put that thing on lighter 步履轻盈
doesn’t mean i’m over cause you’re gone
你的离开并不意味我的结束
what doesn’t kill you makes you stronger, stronger
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20 Translate the sentence
*It is known to us___h_o_w__M_a_r_k_T_w__a_in___ _b_e_c_a_m__e__a_g_r_e_a_t_w_r_i_te_r__(马克.吐温怎样成为一位伟大的作家).
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Make a sentence
What they are talking about is the use of cell phone.
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Correct or not?
10
* If we will have a meeting hasn’t been
decided yet.
×
Whether we will…………………………. decided yet.
10
※ 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/strange that... 谓语形式为:(should) + V.原形
eg. 很奇怪，他竟没有来。 It is strange that_h_e_s_h_ou_l_d_n_o_t _co_m_e______.
30
report , get the highest points, match
It is reported that Yao Ming got the highest points in the match.

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.

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

英语主语从句讲解 ppt课件

主语从句不能将if 放句首
ppt课件 4
what 与that 在引导主语从句时区别
1) What you said yesterday is right.
It is right what you said yesterday. ×
what 充当句子成分，如主语、宾语、表语，
2) That she is still alive is certain.
ppt课件
14
1.I hate ____ when people talk with their mouths full A. it B. that C. these D. them 2. I feel ____ strange that he should be so careless. A. / B. it C. that D. how
ppt课件 17
Exercises
B another power station 1. The news ____ will be built cheered all the villagers. A which B that C what D whatever
A he told us is exciting. 2 The news ____
ppt课件
16
Practice
1. His proposal that we go there on foot is acceptable. 2. Many teachers hold the view that teenagers should not spend too much time online. 3.The first request that he made was to ask for freedom. 4. Do you have any idea where we will be sent? 5. Is this the company where your father works? 6. This is the reason that he gave for his absence. 7. He made an excuse that his car broke down on the way.

主语从句公开课PPT课件

主语从句可以包含丰富的信息，包括时间、地点、条件、原因等
，使表达更加准确具体。
通过主语从句可以精确地描述某个事件或情况，避免歧义和误解
。
主语从句还可以用来表达复杂的观点和态度，使文章更具深度和
说服力。
增加文采和感染力
主语从句可以采用多种句式和表达方式，如倒装句、强调句等，增加文章的文采和感染力。
连接代词和连接副词引导的主语从句一般放在句首，谓语动词用单数形式。
连接代词what和which在引导主语从句时，有时可以互换使用，但which更强调选择范围。
主语从句时态、语态和语气
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问题
时态问题
主语从句时态与主句时态一致
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主语从句中的动词时态通常与主句中的动词时态保持一致，表
示同时发生的动作或状态。
当主语从句中的主语是表示数量的短语（如a number of, the majority of等）时，谓语动词的单复数形式取决于短语所修饰的名词。
主语从句中的主语是并列结构时，谓语动词用复数形式
当主语从句中的主语是由and连接的并列结构时，谓语动词用复数形式。
练习题讲解
选择题
通过选择题的形式，让学生判断主语从句中主谓一致问题的正
当主语从句中的主语是复数形式时，谓语动词必须与主语保持一致，也用复数形式。
特殊情况处理方法
主语从句中的主语是不定代词时，谓语动词用单数形式
当主语从句中的主语是不定代词（如something, nothing, anyone等）时，谓语动词用单数形式。
主语从句中的主语是表示数量的短语时，谓语动词用单数或…
主语从句与形式主语的区分
形式主语it代替真正的主语从句，使句子结构更加平衡。需注意形式主语与真正主语的区分。

主语从句优秀PPT课件

What在此引导主语从句,又做said的宾语

2) That she is still alive is a consolation.
That 只起连接作用,不做成分
CHENLI
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practice
CHENLI
15
改错练习
1.Where shall we spend the holiday isn’t decided. we shall
D．for 20
1. _____ made the school proud was______ more than 90％ of the students had been admitted to key universities.
A. What; because B. What ; that
C. That ; what D. That ; because
2.That he will come and help us is certain. 3.Whether we will succeed is still a
question. 4.It is not known if he will come.
注意: 已确定的事由that引导;
没决定的事由whether引导.
定义：用作主语的从句叫主语从句，它是名
词性从句之一。引导主语从句的连接词有：
连词that, whether；连接代词who, what和which；连接副词when, where, how和why。
CHENLI
4
主语从句的连接词
1.连词 that(无词义 , 不作成分 , 不能省略);whether(是否),if不能位于句首。
insisted/required 中, that从句的谓语也

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.

名词性从句之主语从句精讲(含例题) 课件36张ppt

在句子中担当主语的是一个从句,这个从句就叫做主语从句。
主语从句
定义：在复合句中充当主语的从句即为主语从句。
谓语
T连h接a词t he主w语ill succeed is certain That he will succeed 从句做主语系动词表语
主语从句的引导词
连接词：that, whether, if 连接代词：what(ever), which(ever), who(ever), whom(ever), whose 连接副词：when(ever), where(ver), how, why
连接代词： what, which who, whom, whose, whatever, whoever,whomever, whichever等引导的主语从句
连接代词：连接主句和从句，在从句中充当主语、宾语、表语、定语主语、宾语、表语：what(ever), who(ever), whom(ever) 定语：whose, which, whichever
左侧句子中包含有主语从句，请观察这些句子，思考解决下面的问题：
1.找出从句 2.从句的位置 3.思考什么是主语从句
4. Whose watch was lost is unknown.
5. Why the sun rises in the east is interesting.
从句的位置在整个句子的主语位置
不定式劢名词主语从句中用it作形式主语的结构在it做形式主语时真正的主语也可以是一个句子这个句子也是主语从句的一种主语从句作主语时通常用it作形式主语主语从句放在后面作真正的主语
主语从句精讲
1. That he will succeed is certain . 2. Whether the plan will be carried out is still unknown. 3. Whichever of you comes in first will receive a prize.

主语从句(11张PPT)

4.__W_h_e_t_h_e_r it will rain or not is not clear. 5. W__h__y the earth is becoming warm is a good topic for research.
Conclusion: 1 主语从句作主语时，谓语动词一般用单数形式。
Noun clauses as the subject
主语从句
Revision
Find the subjects in the following sentences.
1. A tree has been cut down. 2. You are a student. 3. To study English well can be difficult. 4. Smoking is harmful to our health. 5. What she said is not yet known.
3. 用it作形式主语的主语从句 (1) It is + adj + that... 很明显，那个女孩在说谎
It is obvious that the girl is telling lies.
(2) It is + n + that... 很遗憾你不能和我们一起去
(3) It is + 过去分词 + that... 据说他去过美国
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。
2.That they should like each other is natural. I_t _is__n_a_tu_r_a_l_t_h_a_t_t_h_e_y_s_h_o_u_l_d_l_ik_e__e_a_c_h__o_th_e_r_.

高中语法人教版英语《主语从句》课件(19张ppt)

例:
That we shall be late is certain.
-- It’s certain that we shall be late.
1. That the earth is round is known to all.
-- It’s known to all that the earth is round.
4. It’s known to us all ___ a form of energy .
A. water is C. is water
B. that water is D. that water to
5. It worried her a bit ___ her hair was turning gray.
• 2. The hope that she expressed is that they would come to visit China again. 定语从句
• 3.The fact that she works hard is well known
由 that 引导: 1. That we shall be late is certain. 2. _T_h_a_t__th_e__e_a_r_th__is__ro__u_n_d_ is known to all.
(地球是圆的) 3. _T_h_a_t_y_o_u__m_i_s_s_ed__t_h_e_c_h_a_n_c_e_ is a pity.
It 的用法：（形式主语）
It’ possible/important/necessary/clear… that……
很可能/重要的是…/必要的是…/很清楚…
It’s said/ reported… that..据说/据报道…

主语从句PPTPPT课件.ppt

注意： (1)从句作主语谓语动词常用单数，但如果 what 引导的从句作主语，后跟名词作表语时，谓语动词则由表语名词的数量决定。 What he told me is true. 他告诉我的是真的。 What he saw were some new comers. 他看见的是些新来的人。
(2)It is said that sb.do sth.的复合句形式可转化为简单句sb.be said to do sth.，而且在简单句中常考查 to do 的具体形式。 (3)it 引导的强调句与 it 作形式主语的复合句的区别。 it 引导的强调句是用来对句中除谓语外某一成分加以强调，其结构为“It is/was＋被强调部分＋that/who...”。如果被强调的主语是“人”，则可用 who 或 that，如果被强调的部分是其他成分时，必须用 that。 It was I that/who met John in the street yesterday. 是我昨天在街上遇到了约翰。(强调主语) It is a pity that you didn't go to see the film. 你没去看电影很可惜.ppt
演讲人
1．主语从句位于句首。 Who kept the door open all night was unknown. 不知道是谁让门整晚开着。 2．主语从句位于句尾，使用it作形式主语。 it作形式主语置于句首的结构 (1)“It＋be＋形容词＋that clause”结构，常用于这种句型的形容词有： fortunate，possible，(un)likely，strange，probable，true，certain等。 It is strange that no one wants to go there. 真奇怪，竟然没有人想要去那里。

人教版英语--主语从句完整ppt课件

精选
主语从句三要素
How he became a great scientist is known to us all. what you told me is true.
从句用陈述语序谓语动词一般用单数不能省略关联词
精选
主语从句的注意问题
• 1.一个句子作主语时，主句的谓语动词应为单数。
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_._____________________________
It is a pity/shame that... 遗憾的是…… It is a surprise that…令人惊奇的是… It is a fact that… …是事实 It is common knowledge that… …是常识
*__It_i_s_a__p_i_ty__th_a_t__(很遗憾)we lost the match.
(4) What is needed for the program is more wisdom.
译为：这__个__项__目__所__需__要__的__是__更___多__的__智__慧__。
精选
从上面例句可以看出，that引导主语从句时，在句中具有“两不”原则：
一、不作句子成分；二、没有实际意义。当它引导的主语从句置于句首时，that不能省略；如果用it作形式主语，而把主语从句放在句末时，that 可以省略。

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表语
What is even more important is that as the earth cooled down, water began to appear on its surface.
主语
What many scientists believe is that the continued presence of water allowed the earth to dissolve harmful gases and acid into the oceans and seas.
Subject Clauses 主语从句
定义：用作主语的从句叫主语从句,它是名词性从句之一.
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.
3
The earth became so violent that it was not clear whether the shape would last or not.
It was not immediately obvious that water was to be fundamental to the development of life.
We don’t know
or not .
Whether he is coming is not known.
What does he want to
tell us?
We don’t know what he wants to tell us.
We don’t know
What he wants to tell us is not known.
宾语
2
1)连接代词 what (whatever ),
who ( whoever) , which (whichever), whom, whose .
连接代词引导主语从句，在句中作主语，宾语，表语，定语。
Which side will win is not clear. 定语 Who will write the poem has not been decided yet.主语 Whatever he did is right. 宾语 What the city will be still remainse chance is a pity.
-- It is a pity that you missed the chance.
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2. 用it 作形式主语的结构
A. It + be + 形容词 + that 从句
(obvious, true, surprising, good, wonderful, funny, possib
例:
That we shall be late is certain. -- It’s certain that we shall be late.
1. That the earth is round is known to all. -- It’s known to all that the earth is round.
That price will go up is certain. That he will come is certain. Whether we go by train or by boat makes no difference. Whether he’ll come here isn’t clear.
It’s certain . we’ll be late.
It’s certain that we will be late. That we’ll be late is certain.
Is he coming or not ？ We don’t know whether he is coming
When will you come back? It doesn’t matter.
It doesn’t matter when you will come back. When you will come back doesn’t matter.
8
主语从句后置!
为了避免主语冗长,句子头重脚轻,经常用 it 作形式主语,主语从句放在后面作真正的主语.
5
Why they suddenly disappeared still remains a mystery.
3)连接副词when，where， how，why等, 在从句中做状语。
How this happened is not clear to anyone. When he will be back depends on the weather. When we’ll start tomorrow will be told soon. Where the test will be given is not yet decided.
6
总结：引导主语从句的连接词有：从属连词: that, whether；连接代词: who (whoever), whom, whose, what (whatever)和which (whichever)；连接副词: when, where, how和why。
7
Make sentences :
So whether life will continue on the earth for millions of years to come will depend on whether this problem can be solved.
4
从属连词：that， whether 引导主语从句只起引导作用，在主语从句中不充当任何成分，that本身无实际意义，但不能省略. whether意为“是否”，放在句首句末皆可。