主语从句公开课.ppt

1、,1.了解并掌握主语从句的相关概念 2.完成与主语从句相关的练习 3.重点：主语从句的句序、主谓一致。 4.难点：引导主语从句的连接词的使用。,学习目标：,Warming-up,What part does the underlined part serve as in each sentence?,subject,A sentence serving as subject is called Subject Clause.,主语从句是在复合句中充当主语的从句，通常放在主句谓语动词之前或由形式主语it代替，而本身放在句子末尾。 How the book will sell depends on

2、 its author. That we shall be late is certain. = It is certain that we shall be late.,主语从句,1. That he will come is certain. 2. Whether it will please them is not easy to say. 3. What seems easy to some people seems difficult to others. 4. Which side will win is not clear. 5. Why he did it remains a

3、mystery. 6. When they will start is not known yet. 7. How he became a great scientist is known to us all. 8. Who will take part in the meeting has not been decided.,Find the subject clauses in the following sentences, and translate them.,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,

4、 what, which等 连接副词 where ,when ,why ,how 等,Complete the sentences using what, whether, where, when， who, why, how or that.,1.(_ is needed for success) is your hard work.,3.(_ we will go tomorrow )hasnt been decided yet.,2.(_ they will arrive )has been told to the teacher.,4.(_ can join in the sport

5、meet) is decided by the teacher.,5.(_ it will rain or not) is not clear.,6.(_ the earth is a solid ball) is known to us all.,What,When/How,Where/whether,Who,Whether,That,主语从句作主语时，谓语动词一般用单数形式。,Conclusion:,主语从句,一.以that引导的主语从句 that是纯连词，在从句中不充当任何成分，不翻译，置于句首不能省略；这类从句大多情况要置于句子后面，而用it作形式主语。,常见的句型有：,1.It+be

6、+形容词（+for sb./of sb.）+that从句(obvious,true,necessary,etc.此类adj.常与介词for连用） （kind，friendly，generous,etc.此类adj.常与介词of连用) It is necessary that he should be here by the weekend . 周末之前，他应该到这里是必要的。,2.It+be+名词词组+that从句 （a pity,no wonder,no surprise,etc.） It is a pity that we cant go. 3.It+be+过去分词+that从句 （sai

7、d,reported,expected,etc.） It is reported that it is going to rain tomorrow.,4. It + 不及物动词 that从句,It appears /seems that 似乎 It matters/doesnt matter whether做某事有/没有关系 It seemed that he knew nothing about it. It matters whether you will attend my birthday party or not.,3.“if” 不能引导主语从句，应有“whether”引导。,4.

8、主语从句的 “that” 一般不能省。,1.“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。, 主语从句需注意的问题,2.主语从句中用陈述语序,What you left _(be)only several old books. What you said_ (be)of great importance. _hellcomehereis notclear. _you are coming to Landon is the best news I have heard.,are,is,Whether,That,注 意：,1. _ you dont

9、like him is none of my business. 2. _ he said at the meeting astonished everybody present 3. _ well go camping tomorrow depends on the weather. 4. and all the other students wondered _the boy would do.(2012,广东高考),That,What,Whether,What,Lets have a quiz!,I.选择恰当的连接词,_ he made an important speech at th

10、e meeting was true. A. That B. Why C. What D. How,4.What I say and think _ none of your business. A. is B. are C. has D have,2.Choose the best choice,Practicegroup work,Example: To be or not to be is a question. 1: What interests me most is_. 2: _is a question. 3: Where to meet_. 4: _puzzles me. 5: Whether he will come_. 6: _is not yet decided.,Sum- up 小结,连接词 ：that、whether,无意义,2. 连接代词 ：who、 what、which,3. 连接副词： when、 where、why、how,“是否”,作主/宾/表,做题步骤：1.看谓语动词；2.看从句； 3.分析成分；4.缺啥补啥。,Homework:,1.我们需要的是更多的时间。 2.他是否