主语从句(人教版高中英语必修三unit4)

必修三Unit4主语从句（Noun Clauses as the Subject）主语：是句子所要说明的人或事物，是句子的主体，主语的位置通常在句首，一般不省略，是谓语的陈述对象；表示句子说的是"什么人"、“什么事”、“什么东西”、“什么地方”等等。

通常名词、代词、数词、动名词、To do不定式、一个句子都可以做主语。

谓语：是对主语动作或状态的陈述或说明, 指出“做什么”、“是什么”或“怎么样”. 谓语动词的位置一般在主语之后。

找出句子的主语A tree has fallen across the road.You are a student.To find your way can be a problem.Smoking is bad for you.“How do you do?” is a greeting.What she said is not yet known.That we shall be late is certain.It is certain that we shall be late.在句中起主语作用的从句叫，它是名词性从句之一。

How the book will sell depends on its author.That he is the best student in the class is obvious主语从句用法归纳：(一)语序主语从句使用，其通常结构为“引导词+ 主语+ 谓语+ 其他成分”；但当连接代词同时充当从句主语时，其结构为“连接代词+ 谓语+ 其他成分”，。

That he will come and help us is certain.How the book will sell depends on its author.(二)引导词①that引导主语从句时，也任何成分，但通常省略.That they are badly in need of help is quite clear.但是这类句子在大多数情况下会放到整个句子的后部去，而用代词it作形式主语。

Section ⅢGrammar——主语从句[语境自主领悟]一、主语从句的基本用法1．主语从句的引导词你将来伦敦是好久以来我听到的最好的消息。

Whether it will do us harm remains to be seen.它是否对我们有害还要看一看。

What I have seen today has made a very deep impression on me. 今天我的所见所闻给我留下了非常深刻的印象。

Whoever breaks this law deserves a fine.触犯本法者应予以罚款。

Whichever(of you)comes in first will receive a prize.(你们中)谁先进来谁得奖。

When we will have a meeting is an important question.我们何时举行一次会议是个重要的问题。

Where we shall do the test is still under discussion.我们在什么地方做这个实验还在讨论。

[名师点津]主语从句中连接词的选择技巧(1)根据连接词在从句中所作的语法成分。

(2)根据连接词在从句中的意义。

[即时训练1]用whether，that，whoever填空①That she became an artist may have been due to her father's influence.②Whether we will hold a party in the open air tomorrow depends on the weather.③Every year，whoever makes the most beautiful kite will win a prize in the Kite Festival.2．it作形式主语为保持句子平衡，常把主语从句后置，而用形式主语it代替。

Unit 4 Grammar- subject clause 导学提纲Designer: Wang Wei Supervisors：Teachers in senior 1班级：组名：姓名：使用时间：2018. 04.【学习目标】 To get students to know the usage of subject clause.【导学流程】一、导 What is the subject? What is subject clause?二、思Task1: Find the sentences which are subject clause in the reading passage, then underline the subject clause.Task 2: 主语从句的连接词从属连词:________________________________________________连接代词:________________________________________________连接副词:________________________________________________三、议、展、评主语从句三大考点: 连接词 it作形式主语语序1. 连接词的选用[活学活用] ① ______we understand things has a lot to do with what we feel.【2015·北京】A.WhereB.HowC.WhyD. When②_____ we'll go camping tomorrow depends on the weather.A.IfB. WhetherC. ThatD. Where③ ______we'll go camping tomorrow has kept us all excited the whole day.A. IfB.WhetherC.ThatD.Where④______ makes mistakes must correct them.A.WhatB. ThatC. WhoeverD. Whatever2 . it 作形式主语(1) It的用处：为了避免主语冗长和句子________, 经常用it作________,主语从句放在____作真正的主语。

Unit 4 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，叫作主语从句。

句子结构：“主语从句（引导词+主语+谓语...）+谓语动词+句子其他...”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，在从句中不作成分，但不可省略。

eg That Tom passed the exam made his parents happy .汤姆通过了考试，这让他的父母和开心。

（2）whether引导主语从句，意为“是否”，在从句中不作成分，不可省略，位于句首时不能用if。

Whether we’ll go camping tomorrow depends on 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，”在从句中作主语、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）其他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。

2019-2020学年高中英语人教版必修三Unit4Astronomy: the science of the stars语法篇____________________________________________________________________________________________________________________________________________________________________要求学生掌握本单元的重点语法---名词性从句中的主语从句一、主语从句的引导词主语从句通常由连词that和whether、连接代词或连接副词以及关系代词型what引导。

1.that引导That he is still alive is a wonder.他还活着，真是奇迹。

That we shall be late is certain.我们要晚了，这是确定无疑的。

That he should have ignored the working class was natural. 他忽视工人阶级是很自然的。

That she is still alive is a consolation. 她还活着是使人感到宽慰的。

That she became an artist may have been due to her father’s influence. 她成为画家可能是受她父亲的影响。

That you are coming to London is the best news I have heard this long time.你将来伦敦是好久以来我听到的最好消息。

That she was chosen made a tremendous stir in her village. 她被挑选上，在她村子里引起很大轰动。

2.whether引导Whether it will do us harm remains to be seen. 是否对我们有害还要看一看。

高中英语学习材料madeofjingetieji【学习目标】学习并掌握主语从句的两种结构和三类连接词。

【自主预习并理解】一、请找出下列句子的主语,并归纳什么可以作句子的主语1.We see him every day in our everyday life.2.To see is to believe.3.Raising pigs is her job.4.What he wants is some milk.5.It is important to learn English.6.The news is exciting.7.It is necessary that we go to help him.8.With the help of Xiao Wang,they finished the work on time.归纳:可以充当句子主语的有:答案:1.We 2.To see 3.Raising pigs 4.What he wants5.to learn English6.The news7.that we go to help him8.they归纳:代词、动词不定式、动名词(短语)、句子和名词二、读下列英语谚语,找出其中含有主语从句的句子1.What is learned in the cradle is carried to the grave.儿时所学,终生难忘。

2.A bad beginning makes a bad ending.不善始者不善终。

3.Ch i ldren are what the mothers are.耳濡目染,身教言传。

4.What’s done cannot be undone.生米煮成熟饭。

5.What’s lost is lost.失者不可复得。

6.Money spent on the brain is never spent in vain.智力投资绝不会白花。