英语语法主语从句公开课完整ppt课件
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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。
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。
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。
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.
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
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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。
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。
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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。
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
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主语从句公开课 PPT
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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
主语从句公开课PPT课件
decided.
思考：主语从句有哪些引导词，这些引导词如何选用？
主语从句的引导词：
连词 that , whether
连接代词 who, what, which等 连接副词 where ,when ,why ,how 等
Complete the sentences using what, whether, where,
1. You are a student. 2. Smoking is bad for you. 3. To find your way can be a problem. 4. What she said is not yet known. 5. That we shall be late is certain. 6. It is certain that we shall be late.
4.主语从句的 “that” 一般不能省。
-
12
Let’s have a quiz!
I.选择恰当的连接词
1. T__h_a_t_ you don’t like him is none of my
business.
2.W__h_a_t_ he said at the meeting astonished
∆ 主语从句需注意的问题
1. What you left _a_r_e_(be)only several old books.
2. What you said__i_s_ (be)of great importance.
3. _W__h__e_th__e_r_he’ll come here is not clear.
Sum- up 小结
1.连接词 ：that、whether
无意义
思考：主语从句有哪些引导词，这些引导词如何选用？
主语从句的引导词：
连词 that , whether
连接代词 who, what, which等 连接副词 where ,when ,why ,how 等
Complete the sentences using what, whether, where,
1. You are a student. 2. Smoking is bad for you. 3. To find your way can be a problem. 4. What she said is not yet known. 5. That we shall be late is certain. 6. It is certain that we shall be late.
4.主语从句的 “that” 一般不能省。
-
12
Let’s have a quiz!
I.选择恰当的连接词
1. T__h_a_t_ you don’t like him is none of my
business.
2.W__h_a_t_ he said at the meeting astonished
∆ 主语从句需注意的问题
1. What you left _a_r_e_(be)only several old books.
2. What you said__i_s_ (be)of great importance.
3. _W__h__e_th__e_r_he’ll come here is not clear.
Sum- up 小结
1.连接词 ：that、whether
无意义
英语语法主语从句公开课课件讲解学习ppt
复习回顾本节课所学内容
小组合作完成练习册上的题目
准备下节课的学习内容
课后作业批改与反馈
课后作业批改方 式
错误点汇总及纠 正方法
学生作业完成情 况统计与分析
针对不同层次学 生提供个性化辅 导与建议
感谢观看
汇报人：WPS
理解主语从句的 时态和语序问题
结合实例深入剖 析主语从句的用 法和考点
总结课件亮点
内容丰富，覆盖面广 图文并茂，易懂易记 重点突出，难点突破 互动性强，参与度高
03
语法讲解
主语从句的定义
定义：一个句子作为主语 类型：三种类型：名词性从句，形容词性从句，副词性从句 构成：引导词+句子 注意事项：主谓一致，时态呼应
分析课件结构
课件封面：包含课程标题、讲师姓名等信息 课件目录：列出课程主要内容，方便学生了解课程结构 主语从句讲解：通过图片、表格等形式，形象展示主语从句的构成和用法 练习题：针对主语从句的用法和意义，设置相关练习题，便于学生巩固所学知识
讲解重点难点
理解主语从句的 构成和特点
掌握主语从句的 连接词用法
针对主语从句的省略和倒装进行 练习
添加标题
添加标题
添加标题
添加标题
针对主语从句的时态和语态进行 练习
设计一些与主语从句相关的作文 练习
要求学生背诵并默写主语从句的构成要素和用法说明
背诵主语从句的构成要素 和用法说明
默写主语从句的构成要素 和用法说明
完成相关练习题
掌握主语从句的用法和构 成要素
要求学生用自己的语言简述本节课的主要内容
06
课堂互动
提问与回答问题
老师提出问题，学生回答
学生之间互相提问，回答问题
小组合作完成练习册上的题目
准备下节课的学习内容
课后作业批改与反馈
课后作业批改方 式
错误点汇总及纠 正方法
学生作业完成情 况统计与分析
针对不同层次学 生提供个性化辅 导与建议
感谢观看
汇报人：WPS
理解主语从句的 时态和语序问题
结合实例深入剖 析主语从句的用 法和考点
总结课件亮点
内容丰富，覆盖面广 图文并茂，易懂易记 重点突出，难点突破 互动性强，参与度高
03
语法讲解
主语从句的定义
定义：一个句子作为主语 类型：三种类型：名词性从句，形容词性从句，副词性从句 构成：引导词+句子 注意事项：主谓一致，时态呼应
分析课件结构
课件封面：包含课程标题、讲师姓名等信息 课件目录：列出课程主要内容，方便学生了解课程结构 主语从句讲解：通过图片、表格等形式，形象展示主语从句的构成和用法 练习题：针对主语从句的用法和意义，设置相关练习题，便于学生巩固所学知识
讲解重点难点
理解主语从句的 构成和特点
掌握主语从句的 连接词用法
针对主语从句的省略和倒装进行 练习
添加标题
添加标题
添加标题
添加标题
针对主语从句的时态和语态进行 练习
设计一些与主语从句相关的作文 练习
要求学生背诵并默写主语从句的构成要素和用法说明
背诵主语从句的构成要素 和用法说明
默写主语从句的构成要素 和用法说明
完成相关练习题
掌握主语从句的用法和构 成要素
要求学生用自己的语言简述本节课的主要内容
06
课堂互动
提问与回答问题
老师提出问题，学生回答
学生之间互相提问，回答问题
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…
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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.
找出主语从句
That he will succeed is certain. 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.
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.
whatever=anything that whoever=anyone who
happy. That he passed the exam made the teacher happy.
.
理解主语从句
他何时要来还不清楚。 When will he come? It is not clear. When will he come is not clear.
When he will come is not clear.
.
2) It is + adj. +that It’s certain that… 肯定… It is possible/likely that... 很可能…… It is obvious/clear that… 很明显… It is true that…的确… It is necessary \important \natural\... that… +(should) +do…
• Whether he will come is uncertain.
_t_h_a_t_ 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 _w_h__e_t_h_e__r,不能用_i_f_
.
引导词
2) 连接代词who, what, which • Who will go makes no difference. • What we need is more time. • Which book I shall choose hasn’t
.
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. • Why he cries is not clear. • Where the meeting will be held is not 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 ．
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.
Noun clauses as the subject
.
什么是主语？
I like English. The train left.
主语：是一个句子说明的人或事物,即叙
述的主题，一般位于_句__首___ 。
.
找出主语
Jim 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）
• 2.明确it作形式主语和形式宾语、代替主语 从句及宾语从句的用法，及其与强调句的 区别。
• 3.区分that引导的同位语从句及定语从句。
.
理解主语从句
他通过了考试让老师很高兴。 He passed the exam. It made the teacher happy. He passed the exam made the teacher
.
这样就构成了下面一些常用句型:
1) It is + n. +that
It is a pity/shame that... 可惜的是……
It is a surprise that… 令人吃惊的是…
It is a fact that…
事实是…
It is common knowledge that … …是常识
known.
.
•主语从句的特点：
1.引导词：
从属连词 that, whether； 连接代词 who, what, which；
whoever, whatever, whichever; 连接副词 when, where, how和why。
2. 语序：陈述句语序
3. 在主语从句中只能用whether,不能用if
.
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。
.
考纲专题解读
• 1.了解名词性从句的基本用法，掌握名词性 从句的引导词及引导词在名词性从句中的 作用，辨析that与what,if与whether等引导 词的用法。
*__It__is_a__p_i_ty__th_a_t__(很可惜)we lost the match. *__It__is_a__f_a_ct__th_a_t_(这是事实)he cheated in the exam.
.
1. 令人吃惊的是他改变了主意。 It is a surprise that he changed his mind.
找出主语从句
That he will succeed is certain. 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.
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.
whatever=anything that whoever=anyone who
happy. That he passed the exam made the teacher happy.
.
理解主语从句
他何时要来还不清楚。 When will he come? It is not clear. When will he come is not clear.
When he will come is not clear.
.
2) It is + adj. +that It’s certain that… 肯定… It is possible/likely that... 很可能…… It is obvious/clear that… 很明显… It is true that…的确… It is necessary \important \natural\... that… +(should) +do…
• Whether he will come is uncertain.
_t_h_a_t_ 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 _w_h__e_t_h_e__r,不能用_i_f_
.
引导词
2) 连接代词who, what, which • Who will go makes no difference. • What we need is more time. • Which book I shall choose hasn’t
.
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. • Why he cries is not clear. • Where the meeting will be held is not 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 ．
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.
Noun clauses as the subject
.
什么是主语？
I like English. The train left.
主语：是一个句子说明的人或事物,即叙
述的主题，一般位于_句__首___ 。
.
找出主语
Jim 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）
• 2.明确it作形式主语和形式宾语、代替主语 从句及宾语从句的用法，及其与强调句的 区别。
• 3.区分that引导的同位语从句及定语从句。
.
理解主语从句
他通过了考试让老师很高兴。 He passed the exam. It made the teacher happy. He passed the exam made the teacher
.
这样就构成了下面一些常用句型:
1) It is + n. +that
It is a pity/shame that... 可惜的是……
It is a surprise that… 令人吃惊的是…
It is a fact that…
事实是…
It is common knowledge that … …是常识
known.
.
•主语从句的特点：
1.引导词：
从属连词 that, whether； 连接代词 who, what, which；
whoever, whatever, whichever; 连接副词 when, where, how和why。
2. 语序：陈述句语序
3. 在主语从句中只能用whether,不能用if
.
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。
.
考纲专题解读
• 1.了解名词性从句的基本用法，掌握名词性 从句的引导词及引导词在名词性从句中的 作用，辨析that与what,if与whether等引导 词的用法。
*__It__is_a__p_i_ty__th_a_t__(很可惜)we lost the match. *__It__is_a__f_a_ct__th_a_t_(这是事实)he cheated in the exam.
.
1. 令人吃惊的是他改变了主意。 It is a surprise that he changed his mind.