主语从句课件.ppt
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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.
英语语法主语从句公开课PPT课件
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.
It is reported that *__________________(建议)we should eat more vegetable and do more exercise.
It is suggested that
第21页/共57页
1.据说他已经去了上海。 It’s said that he has gone to Shanghai. 2. 众所周知台湾是中国的一部分. It is known to all that Taiwan is part of China. 3. 有人建议我们应该多做运动。 It is suggested that we should take more exercise.
碰巧……
It hit/struck/occurred to me that…我突然想
起…
It appears/seems that… 似乎，好像…
It turned out that… 原来…
*_I_t_h_a_p__p_e_n_e_d_t_h_a_t_(刚好)I was out yesterday.
第3页/共57页
主语从句 (Subject Clause)
在主从复合句中充当主语的从句就 是主语从句, 它是名词性从句之一。 引导主语从句的连接词有： 从属连词that, whether；连接代词 who, what和which；连接副词 when, where, how和why。
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.
It is reported that *__________________(建议)we should eat more vegetable and do more exercise.
It is suggested that
第21页/共57页
1.据说他已经去了上海。 It’s said that he has gone to Shanghai. 2. 众所周知台湾是中国的一部分. It is known to all that Taiwan is part of China. 3. 有人建议我们应该多做运动。 It is suggested that we should take more exercise.
碰巧……
It hit/struck/occurred to me that…我突然想
起…
It appears/seems that… 似乎，好像…
It turned out that… 原来…
*_I_t_h_a_p__p_e_n_e_d_t_h_a_t_(刚好)I was out yesterday.
第3页/共57页
主语从句 (Subject Clause)
在主从复合句中充当主语的从句就 是主语从句, 它是名词性从句之一。 引导主语从句的连接词有： 从属连词that, whether；连接代词 who, what和which；连接副词 when, where, how和why。
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
主语从句讲解ppt课件
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.
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.
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.
主语从句完整ppt课件
Pay attention:此主语从句缺少成分-宾语， 故用作成分的what来引导，而不用that。
.
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.
Module 3
Noun clauses as the subject
.
什么是主语
I like English. The train left.
主语：句子说明的人或事物,一般 位于_句__首___ 。
.
找出主语
Jane is good at playing the piano.(名词) To see is to believe. （不定式） Smoking is bad for health. （动名词） What he has said is true. (从句）
whatever=anything that whoever=anyone who
.
引导词
4) 连接副词when, where, why,how
• When we will leave hasn’t been decided.
• How she keeps healthy is a secret.
2. 语序：陈述句语序
.
That he will win the match is certain. It is certain that he will win the match.
注解：一般来说主语从句都是放在 句首 , 但有时为了使句子 保持平衡 ,避免”头重脚轻”, 常用 it 作 形式主语 ，从而把主语从句放在 后面 ．
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
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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。
英语主语从句精品PPT课件
3.___ is known to us all that America is a developed country .
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_._____________________________
A sentence served as subject is called
Subject Clause.
一. 句子转化 eg: The news makes me laugh.
That he failed the test makes me laugh. eg: My hometown is full of wind.
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.
1.___ he made an important speech at the meeting was true.
2. ___we’ll go camping tomorrow depends on the weather .
If ×
Whether the solid shape would last or not wa.s not clear.
if It was not clear whether the solid shape
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_._____________________________
A sentence served as subject is called
Subject Clause.
一. 句子转化 eg: The news makes me laugh.
That he failed the test makes me laugh. eg: My hometown is full of wind.
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.
1.___ he made an important speech at the meeting was true.
2. ___we’ll go camping tomorrow depends on the weather .
If ×
Whether the solid shape would last or not wa.s not clear.
if It was not clear whether the solid shape
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
主语从句ppt课件
选择题练习
要点一
总结词
理解主语从句的引导词和连接词
要点二
详细描述
提供一系列选择题，让学生根据句子语境和语法规则选择 正确的引导词和连接词，以理解主语从句的构成。
阅读理解练习
总结词
运用主语从句理解文章
详细描述
选取包含主语从句的短文或段落，让学生通 过阅读理解文章大意，并能够根据上下文推 断出主语从句所表达的含义。同时，可以要 求学生自己尝试构造主语从句来表达文章主 题或观点。
主语从句的分类
名词性从句
根据主语从句在句子中的作用和位置，可 以分为三类：名词性从句、形容词性从句 和副词性从句。
如句子“who is the president of the United States？”中的“who”引导的从 句就是名词性从句。
形容词性从句
副词性从句
如句子“what he said was interesting” 中的“what he said”是形容词性从句， 它修饰了形容词“interesting”。
主语从句的构成
01
02
03
主语从句的构成
主语从句由引导词、主语 和谓语构成。
引导词
通常使用what、who、 whose、which等词来引 导主语从句。
例子
句子“what he said is true”中，“what”是引 导词，“he said”是主语 ，“is true”是谓语。
主语从句的分类
过去时态
如果主句使用过去时态，主语从句 也使用过去时态。
03
主语从句的特殊用法
先行词在从句中担任的成分
先行词在从句中担任主语
当先行词在从句中担任主语时，从句的结构通常为主语+谓语+其他成分。
【高中语法】人教版英语《主语从句》 精品课件(19张ppt)
4. It’s known to us all ___ a form of energy .
பைடு நூலகம்
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.
What 与 that 引导主语从句
what引导名词性从句时在从句中 充当句子成分,如主语,宾语,表语, 而that则不然,它在句子中只起连接 作用。例如： (1) What you said yesterday is right. (2) That she is still alive is a puzzle.
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
Appositive Clauses 同位语从句
同位语从句在句中充当同位语从句成分，其一般
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…
It’s been announced/declared that..已经通知/宣 布…
It seems/appears/happens.. that…显然、明显、 碰巧..
It’s no wonder that…并不奇怪/无疑…
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…
《主语从句超全》PPT课件
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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。
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2. That Jay Zhou will come to my city excites everybody. 该句中主语从句是 _T_h_a_t_J_a_y__Z_h_o_u__w_i_ll_ _c_o_m_e__to__m_y__c_it_y_，引导词为__th_a_t_。
3. Whether we will travel abroad or not has not been decided. 该句中主语从句是 _W__h_e_t_h_e_r_w__e_w__il_l __ _tr_a_v_e_l_a_b_r_o_a_d__o_r_n_o_t_，引导词为 _w_h__et_h_e_r__。
Noun clauses as the subject
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
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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
It is common knowledge that… …是常识
*_It__is__a__p_it_y__th__a_t_(很遗憾)we lost the match.
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。
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2. That Jay Zhou will come to my city excites everybody. 该句中主语从句是 _T_h_a_t_J_a_y__Z_h_o_u__w_i_ll_ _c_o_m_e__to__m_y__c_it_y_，引导词为__th_a_t_。
3. Whether we will travel abroad or not has not been decided. 该句中主语从句是 _W__h_e_t_h_e_r_w__e_w__il_l __ _tr_a_v_e_l_a_b_r_o_a_d__o_r_n_o_t_，引导词为 _w_h__et_h_e_r__。
Noun clauses as the subject
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
It is common knowledge that… …是常识
*_It__is__a__p_it_y__th__a_t_(很遗憾)we lost the match.
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二、找出下面句子的主语。
That I can enter a key university is my dream.
What he did made me extremely angry. Whether we will go picnicking tomorrow depends on the weather.
8. What you need is more practice. 主句谓语是___i_s____, what在从句中充____宾__语_______
9. How he became a famous musician is known to all. 主句谓语是__is__k_n_o_w__n, how在从句中充___方__式__状__语_____
2.从句若缺主/宾/定，就考虑_代__词____
3.若从句不缺主/宾/定，再看意思上是否缺状语,
就考虑__副__词____
4. 若从句都不缺主/宾/定/状，则考虑 _t_h_a_t/_w_h_e_t_h_e_r_
W__h_i_c_h team will win the game is the focus of this moment. _W__h_e_n___ he will be back ends on the weather W__h__et_h_e_r_he will help them is not easy to say..
3. 有词义的并且在从句中充当成分的词：
在从句中充当_主_语__ 用 who, what, which 宾__语__用whom, what, which 代词 _定_语__用whose, which
在从句中充当_状_语__用when, where, why, how 副词
解题步骤： 1.找出主句谓语动词，判断是什么从句
主语从句的五种特殊情况：
1. 用it作形式主语代替主语从句前置。
That they should like her is natural. =It is natural (that) they should like her. 常用后置主语从句的句型有以下几种： 1) It + be + 形容词+that主语从句 It is necessary that we should study hard. 2) It + be + 过去分词+that主语从句 It is believed that he will win the gold medal. 3) It + be + 名词+that主语从句 It is a surprise that he should appear in her party. 4) It + vi(appear/seem/happen/…) +that主语从句 It seems that he has got a cold. It happened that she was out yesterday.
6. Which kind of food is the best is still not certain. 主句谓语是__第__二__个__is, which从句中充当__定__语__________
7. Who will be sent to the front has not been decided yet. 主句谓语是h_a_s__n_o_t__b,ewehnod在e从cid句e中d 充当__主__语_________
引导词
归纳：
从句 从句 主语 谓语
(系.)
从句表语
在主句谓语动词之前作主语的句子叫__主__语__从__句_____。
四、找出主句谓语动词，并判断引导词在从句中作什么成分。
1. That she survived the accident is a miracle. 主句谓语是___is______, that在从句中(充当)__不__充__当__成__分___ 2. Whether we’ll go outing depends on the weather. 主句谓语是d_e_p_e_n_d__s_o_n, whether在从句中(充当)_不__充__当__成__分_ 3. When the plane is to take off has not been announced. 主句谓语h是as_n_o_t_b__ee_n__a,nwnhoeunn在ce从d 句中充当__时__间__状__语_____ 4. Where we will spend the holiday is not clear. 主句谓语是____is_____, where在从句中充当___地__点__状__语___ 5. Why dinosaurs died out remains a puzzle. 主句谓语是_r_e_m__a_in_s_, why在从句中充当___原__因__状__语_____
归纳： 引导词有哪些词？ 什么情况用？
语法填空考点：引导词
起着连接主从句的作用
1. that _无_词__义__，在从句中_不_充__当__成_分___， 引导_宾__语_从__句___时一般可省略 .
2. whether&if表示“是__否___”, 在从句中不_充_当__成_分___ 通常用whether.
小结： 主语从句
充当主语是___句_子____, 位于__谓__语__动__词______ (发生时态变化的)前面。
三、找出下面句子中的主语从句和划分句子成分。
1) What you said yesterday is right.
引导词 从句主语 从句谓语 从句时间状语
2) That she is still alive surprises everyone.
----主语从句
一、找出下面句子的主语。
A tree has fallen across the road. You are a student. To find your way can be a problem. Smoking is bad for you.
小结： 充当主语的可以是__名_词___,__代_词___,_不__定__式_,__动__名_词__, 位于_谓__语_动__词__的前面。