高中语法主语从句优秀课件
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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
人教版 语法主语从句 课件(17张ppt)
is a question.
2. _W__h_e_t_h_e_r_ it should last two days or three days
doesn’t matter.
3. W__h_o__e_v_e_r wants the book may have it.. 4. _H_o_w____many people will attend the conference
good friends and kind teachers.
Part Two: Error Correction
1. He doesn’t like them is very clear.
That he doesn’t like them is very clear.
2.That has happened proves that my advice is
8. _T__h_a_t_ there is life on another planet is almost
impossible.
9. It is still unknown_w__h_o___ will be sent to the States. 10. _W__h_a_t__make my life colorful in the school are my
3)_T_h_a_t_ he lost the bike worried him a lot.
4)_W__h_a_t caused the accident remains unknown. 5) _W__h_a_t made matters worse was_w__h_atnight began to fall. 6) _W__h_a_t we can’t get seems better than _t_h_a_t__ we have.
2. _W__h_e_t_h_e_r_ it should last two days or three days
doesn’t matter.
3. W__h_o__e_v_e_r wants the book may have it.. 4. _H_o_w____many people will attend the conference
good friends and kind teachers.
Part Two: Error Correction
1. He doesn’t like them is very clear.
That he doesn’t like them is very clear.
2.That has happened proves that my advice is
8. _T__h_a_t_ there is life on another planet is almost
impossible.
9. It is still unknown_w__h_o___ will be sent to the States. 10. _W__h_a_t__make my life colorful in the school are my
3)_T_h_a_t_ he lost the bike worried him a lot.
4)_W__h_a_t caused the accident remains unknown. 5) _W__h_a_t made matters worse was_w__h_atnight began to fall. 6) _W__h_a_t we can’t get seems better than _t_h_a_t__ we have.
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
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.
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
03
问题
时态问题
主语从句时态与主句时态一致
01
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。
高中英语语法---主语从句课件(共29张)
6) Whatever you did is right.
7) Whose watch was lost is unknown. 8) What we need is time. 9) What we need are good doctors.
小结: 1) 引导主语从句连词有that, whether, who, what, whatever等.
小结:
1. 以that 引出的主语从句,常以形式主
语it引导. It is +形容词/名词/某些动词
ed + that 从句.
2. 在有些that从句中要用虚拟语
气 (should +do/ should +have done)
例句4, 9.
宾语从句
在句子中起宾语作用的从句叫做宾语
从句. 宾语从句分为三类: 动词的宾语
2) 连词位于句首不能省略.
3) 主语从句大多数情况下视为第三人
称单数,但在关系代词what引导的主语
从句后,谓语动词的数要根据句意而定,
如例8、例9.
为了防止句子头重脚轻，通常把形式主语 it 放在主语位置，真正主语搁置于句末. 1. It is certain that he will win the match. 2. It is true that he has made a very important discovery in chemistry. 3. It is very likely that they will hold a meeting.
用that, if引导的介词宾语从句 有时候except, but, besides三个介词后可见 到that引导的宾语从句 I know nothing about my new neighbor except that he used to work with a company. 对于我的新邻居我只知道他曾在一家公司 上班,其他一无所知.
7) Whose watch was lost is unknown. 8) What we need is time. 9) What we need are good doctors.
小结: 1) 引导主语从句连词有that, whether, who, what, whatever等.
小结:
1. 以that 引出的主语从句,常以形式主
语it引导. It is +形容词/名词/某些动词
ed + that 从句.
2. 在有些that从句中要用虚拟语
气 (should +do/ should +have done)
例句4, 9.
宾语从句
在句子中起宾语作用的从句叫做宾语
从句. 宾语从句分为三类: 动词的宾语
2) 连词位于句首不能省略.
3) 主语从句大多数情况下视为第三人
称单数,但在关系代词what引导的主语
从句后,谓语动词的数要根据句意而定,
如例8、例9.
为了防止句子头重脚轻，通常把形式主语 it 放在主语位置，真正主语搁置于句末. 1. It is certain that he will win the match. 2. It is true that he has made a very important discovery in chemistry. 3. It is very likely that they will hold a meeting.
用that, if引导的介词宾语从句 有时候except, but, besides三个介词后可见 到that引导的宾语从句 I know nothing about my new neighbor except that he used to work with a company. 对于我的新邻居我只知道他曾在一家公司 上班,其他一无所知.
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
14
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
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：
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_.
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…
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…
高中英语语法 主语从句(24张PPT)
2.Try to find as many sentences like the following examples as possible!
3.If your group finish the task, please put up your hand and one member should tell us all the sentences your group have found.
Student A: Tom, tomorrow is your birthday. Who do you invite? Students B: I will welcome everyone who comes to my party.
_W__h_o_e_v_e_r_c_o_m_e_s___will be welcome.
What is subject clause?
主语从句三要素
How he became a great scientist is known to us all. Is what you told me really true?
不谓从 能语句 省动用 略词陈 关用述 联单语 词数序
Notice: What we need most are books.
有人建议…
(4)It must be pointed out that … 必须指出…
Try your luck!
Choose the pictures and finish the exercise with your group!
Group work
Finish ex.2 in Discovering useful structures.
从句。
(1) It is +形容词/名词+ that 从句，如：
3.If your group finish the task, please put up your hand and one member should tell us all the sentences your group have found.
Student A: Tom, tomorrow is your birthday. Who do you invite? Students B: I will welcome everyone who comes to my party.
_W__h_o_e_v_e_r_c_o_m_e_s___will be welcome.
What is subject clause?
主语从句三要素
How he became a great scientist is known to us all. Is what you told me really true?
不谓从 能语句 省动用 略词陈 关用述 联单语 词数序
Notice: What we need most are books.
有人建议…
(4)It must be pointed out that … 必须指出…
Try your luck!
Choose the pictures and finish the exercise with your group!
Group work
Finish ex.2 in Discovering useful structures.
从句。
(1) It is +形容词/名词+ that 从句，如：
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。
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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
It is a surprise that… 令人惊奇的是… It is a fact that… 事实是 … It is a question that... 问题是...
It is a pity that 1. ______________(很遗憾)we lost the match.
It is a fact that 2. ______________(这是事实)he cheated in the exam.
2) It is + adj. +主语从句 如：It is clear/certain that… 很清楚/很肯定…
It is possible that... 很可能…… It is obvious that… 很明显… It is important that… 重要的是...
1. I_t _is__p_o_s_s_ib__le__th_a_t___(很可能)she will come back tomorrow. 2._I_t _is__o_b_v_io_u__s_t_h_a_t__(很明显)this measure is effective.
3) It + be +过去分词+主语从句 如：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……
1._I_t_i_s_r_e_p_o__rt_e_d__t_h_a_t__(据报道)20 people were killed in the accident.
order语序 陈述语序 indicative orderΒιβλιοθήκη conjunction 连接词
Conjunctions（连接词）
从属连词 连接代词 连接副词
that __无___词__义_____ whether/if ___"_是___否__"
__不___充当从句的任何成分
what, who, whom, which， whose,whatever,whoever... 充当从句的_主__语__, 表__语__,_宾__语__, 定语.
when, where, how, why...
充当从句的__状_语__
That Lady Gaga will come to our city next
Monday is certain. 该= I句t i中s c主er语ta从in 句tha是t _TL_ha_da_ty_L_Ga_ad_g_ya_G_w_ai_lgl_ac_o_wm_i_lel_tc_oo_m_ e otouroucritycintyexntexMt oMndonayda.y连接词为 t_h_a_t__。
Find out the subject(主语) in each sentence.
1. A book is on the desk
noun名词
2. Smoking is bad for you. verbal noun代词
3. To find a good job is my dream.
4 You are a student.
has not been decided. 该句中主语从句是 _W__h_e_t_h_e_r_w__e_w_i_l_l __ _tr_a_v_e_l_a_b_r_o_a_d__o_r_n_o_t_，连接词为 _w_h__et_h_e_r__。
Subject Clause
definition
定义
主语从句是在复合句中充当主语的 句子，起到主语的 作用。
高中语法主语从句优秀课件
Noun Clauses (名词性从句)
Object Clause （宾语从句）
Predicative Clause （表语从句）
Subject Clause (主语从句)
Appositive Clause （同位语从句）
Unit 4 Astronomy: the science of the stars
Formed Subject(形式主 语)
Subject clause
Real subject
总结:当一个句子主语过长时，用it作形式主 语(formed subject)，而把真正的主语或主 语从句后放句尾，避免 “头重脚轻”。
所以就构成了下面3种常用句型:
1) It is + n. +主语从句 如: It is a pity that... 遗憾的是……
【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
It is a surprise that… 令人惊奇的是… It is a fact that… 事实是 … It is a question that... 问题是...
It is a pity that 1. ______________(很遗憾)we lost the match.
It is a fact that 2. ______________(这是事实)he cheated in the exam.
2) It is + adj. +主语从句 如：It is clear/certain that… 很清楚/很肯定…
It is possible that... 很可能…… It is obvious that… 很明显… It is important that… 重要的是...
1. I_t _is__p_o_s_s_ib__le__th_a_t___(很可能)she will come back tomorrow. 2._I_t _is__o_b_v_io_u__s_t_h_a_t__(很明显)this measure is effective.
3) It + be +过去分词+主语从句 如：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……
1._I_t_i_s_r_e_p_o__rt_e_d__t_h_a_t__(据报道)20 people were killed in the accident.
order语序 陈述语序 indicative orderΒιβλιοθήκη conjunction 连接词
Conjunctions（连接词）
从属连词 连接代词 连接副词
that __无___词__义_____ whether/if ___"_是___否__"
__不___充当从句的任何成分
what, who, whom, which， whose,whatever,whoever... 充当从句的_主__语__, 表__语__,_宾__语__, 定语.
when, where, how, why...
充当从句的__状_语__
That Lady Gaga will come to our city next
Monday is certain. 该= I句t i中s c主er语ta从in 句tha是t _TL_ha_da_ty_L_Ga_ad_g_ya_G_w_ai_lgl_ac_o_wm_i_lel_tc_oo_m_ e otouroucritycintyexntexMt oMndonayda.y连接词为 t_h_a_t__。
Find out the subject(主语) in each sentence.
1. A book is on the desk
noun名词
2. Smoking is bad for you. verbal noun代词
3. To find a good job is my dream.
4 You are a student.
has not been decided. 该句中主语从句是 _W__h_e_t_h_e_r_w__e_w_i_l_l __ _tr_a_v_e_l_a_b_r_o_a_d__o_r_n_o_t_，连接词为 _w_h__et_h_e_r__。
Subject Clause
definition
定义
主语从句是在复合句中充当主语的 句子，起到主语的 作用。
高中语法主语从句优秀课件
Noun Clauses (名词性从句)
Object Clause （宾语从句）
Predicative Clause （表语从句）
Subject Clause (主语从句)
Appositive Clause （同位语从句）
Unit 4 Astronomy: the science of the stars
Formed Subject(形式主 语)
Subject clause
Real subject
总结:当一个句子主语过长时，用it作形式主 语(formed subject)，而把真正的主语或主 语从句后放句尾，避免 “头重脚轻”。
所以就构成了下面3种常用句型:
1) It is + n. +主语从句 如: It is a pity that... 遗憾的是……