人教新课标必修三 Unit 4 Astronomy-Grammar[主语从句教学课件]
必修3：Unit4主语从句
summary
一、主语从句在句子中扮演主语的角色；
二、要不出现在句首，要不放在句末。
三、3种用法：
1. 由 -wh 引导 （what; who; when; where; why; how; whether…)
2. 由 that 引导
3. 由 It 做形式主语
1）It is + 名词 + 从句 2）It is + 形容词 + 从句 3）It + 动词（vi/vt) + 从句 (区分系动词) 4）It + 被动 + 从句
4）It + 被动 + 从句
It is reported that… 据报道……，
It is said that… 据说………
对比 what 和 that 的用法
用 what 和 that 填空。
1）_____ Trump did in public astonished the others. 2）_____ Trump did something in public astonished
状语从句 他养了条狗子，因为他寂寞。
主语从句是干啥的？
作主语的
主语从句的位置有 2 种情况： 1）主语从句 + 谓
谓 主
What you say is always right.
你说的都对。
主语从句的位置有 2 种情况： 2）it 作形式主语：It + 谓 + 主语从句
形式主语 谓
It is important that we eat well.
形式主语
主语从句
2）It is obvious that we can not finish the task on time.
【2018年春季课程高一英语】第8讲 人教版 必修三 Unit 4 Astronomy (语法与写作)教案
教学过程一、复习预习引导学生复习上节课所学的知识点（以提问、回顾的形式进行），针对上节课的作业进行讲评、订正、答疑，并分析和扩展导入本节课所学。
二、课堂导入概念引入T：请大家观察下面几个句子并说出其含义That you will win the medal seems unlikely.你想获得奖牌看起来是不可能的。
Whether she is coming or not doesn’t matter too much.她来不来都无关紧要。
What I want to know is this. 我想知道的就是这事。
When the plane is to take off has not been announced .飞机何时起飞还没有宣布。
待学生思考片刻之后，老师分析每个句子并引出主语从句的用法。
三、知识讲解知识点1 主语从句做主语用的名词性从句，因其在复合句中做主语，又称主语从句，引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。
主语从句主要有四类：【考查点】1. 由连词that引导的主语从句:引导词that无含义，在句中不做成分，不可以省。
例如：That you will win the medal seems unlikely.That you are so indifferent bothers me.That she survived the accident is a miracle.【考查点】2. 用连词whether 引导的主语从句: whether有含义(是否)，在句中不做成分，不可以省。
注意：引导主语从句，不能用if，只能用whether。
例如：Whether we will hold a party in the open air tomorrow depends on the weather.Whether she is coming or not doesn’t matter too much.【考查点】3. 用连接代词引导的主语从句在由连接代词who, whose, whom, which, what, whoever, whomever, whichever, whatever引导的名词性从句中，其连接代词在句中起名词性作用，担当一定成分。
高一英语必修3Unit 4Astronomy the science of the stars知识点总结
Unit 4 Astronomy：the science of the starsPeriod 1 Grammar points.一．语法要点主语从句：在复合句中作主句的主语的从句叫主语从句。
引导主语从句的词有连词that, whether；连接代词who, what, which；连接副词when, where, how, why等。
Eg: Which team will win the match is still unknown.主语从句放在句首，句子常显得笨重，因此一般把它放到句子后面，前面用引导词”it”来作主语。
Eg: It’s strange that he didn’t come yesterday.二．重点难点1．Nobody knew that it was going to be different from other planets going to be different from other planets going round the sun.going round the sun 为现在分词短语定语，表示一般的动作。
Eg: Men breaking the law will be punished.现在分词短语，也可表示进行的动作2. Weather life will continue on the earth for millions of years to come will depend on whether this problem can be solved.for millions of years to come 中不定式to come 作定语，与前面的名词有逻辑上的主谓关系。
Eg: She is the last person to tell lies.3．The problem was that the earth became violent because it was not clear whether the solid shape was to last or not.The problem was that …, that 引导表语从句，that 只起连接作用，无意义，但不能省略。
人教新课标高中英语必修三Unit4_Astronomy全单元详细教案[1]1
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Unit 4 Astronomy: thescience of the starsContents 目录一、单元教学目标和要求(Teaching aims and demands)二、教材内容分析(Analysis of the teaching materials)三、单元预习任务(Pre-unit task）四、教学安排(Teaching arrangements)五、教学步骤(Teaching procedures)六、背景参考资料(Background knowledge)七、评价与反思(Assessment and reflection)一、教学目标和要求(Teaching aims and demands)根据《英语新课程标准》（实验稿）关于总目标的具体描述，结合高一学生实际和教材内容，我们将教学目标分为语言知识、语言技能、学习策略、情感态度、文化意识五个方面。
1．语言知识（Knowledge）词汇（Vocabulary）：能理解、内化、运用以下生词--atmosphere, violent--violence, solid, explode, oxygen, surface, planet, harmful—harm, development—develop, spread, method, presence, telescope, disappointed, force, gradually, float, mass,短语(Phrases and expressions)：the solar system, in time, carbon dioxide, prevent… from, depend on, cheer up, now that, break out,功能(Functions)：学习掌握一些用于陈述问题及给予意见的结构，如：My problem/ trouble is……? The difficulty / question is…My advice/ suggestion is…What I think about it is…Please pay attention to…Make sure you …Watch out for…语法(Grammar)：掌握和运用主语从句。
2019-2020学年人教版英语必修三新素养同步讲义：Unit 4 Astronomy Section Ⅳ Grammar Word版含答案
Section ⅣGrammar名词性从句——主语从句1．(教材P25)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.2．(教材P25)The earth became so violent that it was not clear whether the shape would last or not. 3．(教材P26)What is even more important is that as the earth cooled down, water began to appear on its surface.4．(教材P26)It was not immediately obvious that water was to be fundamental to the development of life.5．(教材P26)What many scientists believe is that the continued presence of water allowed the earth to dissolve harmful gases and acids into the oceans and seas.6．(教材P26)So whether life will continue on the earth for millions of years to come will depend on whether this problem can be solved.定义在主从复合句中，充当主语的从句叫做主语从句。
◆How the earth came into existence remains a mystery to us.地球是如何形成的对我们来说仍然是一个谜。
人教新课标必修三 Unit 4 Astronomy-Grammar[语法教学课件]
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_s_h_e_c_an_’_t _u_nd_e_r_st_a_n_d_m_e_. __________ my mother doesn’t like to accept __ne_w__th_i_n_gs_. ___________________
__I _ca_n_’_t u_n_d_e_r_st_an_d__m_y_m__ot_h_er__ei_th_e_r.__ (more reasons)
Unit 4
Astronomy: the science of the stars
Learning about language
Noun clauses as the subject
life
is beginning…
We were born…
We are growing up…
mother
For all these, we should give thanks to our mothers ---because they give us our lives!
Whether _o_th__er__a_s_tr_o_n_o_m__e_r_s_a_c_c_e_p_t_h_i_s_id_e_a_s_ _r_e_m__a_in_s__a_q_u_e_s_t_io_n_._______
高中英语 人教版必修三第四单元语法：主语从句
Unit4 Astronomy:the science of the stars主语从句（The Subject Clause）（一）主语从句概念：在复合句中充当主语的句子，叫做主语从句。
句子结构：“主语从句（引导词+主语+谓语..）+谓语动词+句子其它...”What he said is of great importance .他所说的很重要。
That prices will go up is certain .物价要上涨是肯定的。
（二）主语从句引导词：连词that（无词义），,whether（是否）连接代词who/ who（谁）, whose（谁的）,what（...的事）,which (哪一个）连接副词when（什么时候）,where（哪里）,how（如何/怎么）,why （为什么）（1）that引导主语从句，本身无词义，在从句中不做成分，但不可省略。
eg That Tom passed the exam made hisparents happy .汤姆通过（2）whether引导主语从句，意为“是否”，在从句中不做成分，不可省略，位于句首时不能用if 。
Whether we ‘ll go camping tomorrow dependson the weather.明天我们是否去野营取决于天气。
（3）what引导主语从句，意为“...的事，”在从句中做主语、宾语、表语，不可省略。
What is needed for the space trip is careful preparation .（what 在从句作主语）去太空旅行所需要的就是仔细的准备。
What they want is a good book.（what 在从句作宾语）他们想要的就是一本好书。
（4）其它特殊疑问词引导的主语从句：注意特殊疑问词引导的主语从句要用陈述语序。
Who will do it doesn’t matter.谁要做这件事没关系。
必修3 Unit 4 Astronomy： the science of the stars 名词性从句
【本讲教育信息】一. 教学内容：名词性从句——主语从句与同位语从句二. 知识精讲：（一）主语从句1. 概念与引导词在复合句中充当主语的从句就叫做主语从句。
引导主语从句的连接词有that, whether, who, whom, whose, what, which, whoever, whatever, whichever, where , when , why , how Where we shall have the meeting makes no difference.我们在哪开会都无所谓。
That we were invited to a concert this evening is good news to us.我们被邀请去参加今晚的音乐会，这对于我们来说是个好消息。
2. 主语从句需要注意的问题（1）从属连词that在主语从句中不作任何成分，只起连接作用，但不能省略，并且可以用形式主语it代替，把that从句置于句末。
That he will come to the conference has excited every one of us.他要来参加会议使我们每一个人都很激动。
It is decided that the meeting will be put off till next Monday.已决定将会议推迟到下周一。
（2）主语从句常用it作形式主语，常用于以下固定句式中：①It +be +形容词（obvious, natural, surprising, wonderful, possible, likely, certain, necessary, important, strange…）+ that从句，在这类主语从句中，谓语部分常用虚拟语气，即should+动词原形。
It is necessary that one (should) master the skills of operating computers.掌握电脑操作技术是很有必要的。
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Complete the sentences using what, whether, where,
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。
4. 主语从句需注意的问题 注 意：
1.“if” 不能引导主语从句，应有“whether”引 导2.主。语从句中用陈述语序 3.主语从句的 “that” 一般不能省。
4.(W__h_ocan join in the sport meet) is decided by the teacher.
5.(_W__h_e_th__er_ it will rain or not) is not clear. 6. (W__h__y the earth is becoming warm) is a good topic for research.
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
We don’t know whether he is coming or not
predicative clause 表语从句
Revision
Find the subjects in the following sentences.
1. A tree has fallen across the road. 2. You are a student. 3. To find your way can be a problem. 4. Smoking is harmful to you. 5. What she said is not yet known. 6. That we shall be late is certain. 7. It’s certain that we shall be late.
1. I think “mother” is an important word to
learn and that “mother” is an important
person to love.
object clause 宾语从句
2. It is necessary that we should love our
A. What B. That C. When D. / 2. _______ they can solve the question is still unknown. A. If B. Which C. Whether D. What 3. _____ he said at the meeting astonished everybody. A. Why B. What C. That D. Who
mothers, respect them and take care of them
in future.
subject clause 主语从句
3. My dream is that one day there is no generation gap between our mums and us.
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。
1.What you left are only several old books.
2.What you said is of great importance.
3.Whether he’ll come here is not clear.
10Where she is from is unknown.
主语从句的引导词：
连词 that , whether 连接代词 who(ever), whom(ever),
which(ever), what(ever) 连接副词 where ,when ,why ,how
汉译英
1.他们是否卖掉这所房子还没有决定。
to say. 3What ss
difficult to others. 4Which side will win is not clear. 5Why he did it remains a mystery.
思考：主语从句有哪些引导词，这些引导词如何选用？
6When they will start is not known yet.
7How he became a great scientist is known to us all.
8Who will take part in the meeting has not been decided.
9Whoever breaks the law will be punished.
4. _W__h_e_t_h_e_r we’ll go camping tomorrow depends on the weather.
5. W__h_o_e_v_e_r_ leaves the room last ought to turn off the lights.
Make sentences
When will you come back?
When you will come back doesn’t matter.
It doesn’t matter.
It doesn’t matter when you will come back.
1.___ he made an important speech at
A.whether
B. that
C. what
D. when
4.What I say and think ___ none of your business.
A. is B. are C. has D have
1. _____ we need more practice is quite obvious.
Whether he is coming is not known.
What does he want We don’t know what he wants to tell us.
to tell us?
What he wants to tell us is not known.
We don’t know
________they will sell the house is not yet decided. 这里能用if代替whether吗？为什么？
if可以引导主语从句,但不能用于句首,而应 放在句尾, 用it做形式主语.
依据“缺什么补什么”原则确定正确的连词。所谓 “缺什么补什么”是指句型结构与连词之间的关 系。如果句子中缺主语，指人用who，指物用what； 如缺宾语，指人用whom，指物用what；如缺时间 状语用when；地点状语用where；原因状语用why； 方式状语用how；定语用what或which；什么都不 缺用that。
由连词 whether, 连接代词 what, who, which和 连接副词 when,where,why,how 等引导,也常常后置:
注意二
注意：主语从句中 ，谓语动词一般用单数 What引导的主语从句，可根据表语决定
√ • Who will do it ____been decided(have /has)
• What he needs _is_ that book.
• What he needs a_r_e some books.
注意三：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。
.
(1) W__h__a_t you said yesterday is right. (2) T__h_a_t_she is still alive is a puzzle
用it形式主语的that从句有以下四种 不同的搭配：
It + be + 形容词 ＋ that从句
It is necessary that… 有必要… It is important that …. 重要的是… It is obvious that…… 很明显……
It + be + -ed分词 ＋ that从句
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.
2. That you missed the chance is a pity.
-- It is a pity that you missed the chance.
It is +adj/n that……(strange/a pity…)
It is + v –ed that…..(…said/reported….
4. ____ is a fact that English is accepted as an international language. A. There B. This C. That D. It