Unit 2 Bridging Cultures Discover Useful Structures -高中英语人教版（2019）选择性必修第二册.pptx

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1、 Unit2 Bridging culturesGrammarWhat is Noun Clause?What is its function?Lead-inLearning aims:1)To identify the usage of“Noun Clause”2)To use them freely in the exercises.Study and independently(3)Look at the two sentences and summarize the definition of the Noun Clause.名词性从句名词性从句名词性从句名词性从句相当于名词词组，在复

2、合句中可以做主句的主语、表语、宾语和同位语。因此，名词性从句分为主语从句、表语从句、宾语从句和同位从句。(一一)引导名词性从句的连接词引导名词性从句的连接词1、连接代词：who，whoever，whose，whom，what，whatever，which，whichever。有词义，在从句中担任成分，如主语、表语、宾语、或定语等。2、连接副词：when，whenever，where，wherever，why，how。有词义，在从句中担任成分，作状语。3、连接词：that，whether，if，as if。that 无词义，在从句中不担任成分，有时可省略；if(whether)，as if虽有词

3、义，但在从句中不担任成分。Self-learning guidance(8):1)Look at the following content in 基础盘点基础盘点about on book P32.2)To find out the functions and meanings 3)To find out the key and difficult points.4)To find out the points you dont understand.(二二)主语主语从句从句1、主语从句在复合句中充当主语的从句（可直接放句首）。e.g.Who will go is not important

4、.What he intended to show us was a small stamp.Whoever answers the question will be rewarded with a flower.2、用it作形式主语，主语从句放在句末。e.g.It is suggested that the meeting should be put off.3、that引导主语从句时，不能省略。e.g.That he suddenly fell ill last week made us surprised.(三三)表语从句表语从句1、表语从句在复合句中作表语，位于系动词之后。e.g.Th

5、e question was who could go there.The book is where you placed it.2、引导表语从句的连接词that一般不可省去。e.g.My idea is that we can get more comrades to help in the work.(四四)宾语从句宾语从句1、宾语从句在复合句中作宾语,位于及物动词、介词、形容词之后。引导宾语从句的连词that一般可省略。e.g.I hope(that)everything is all right.We will give you some advice on how you will

6、 pass the exam.We are certain that this is ture.2、介词之后的宾语从句，不可用which或if连接，要分别用what或 whether。e.g.Im interested in whether youve finished the work.Im interested in what youve said.3、whether与if都可以引导宾语从句，常可互换。但下面情况不能互换。宾语从句是否定句时，只用if，不用whether。e.g.I wonder if it doesnt rain.用if 会引起误解，就要用whether。e.g.Plea

7、se let me know whether you want to go.(此句如果把whether改成if，容易当成条件句理解)宾语从句中的whether 与or not直接连用，就不能换成if；不直接连用，可换。e.g.I dont know whether or not the report is true.I dont know whether/if the report is true or not.介词后的宾语从句要用whether引导。whether 可与不定式连用。whether也可引导主语从句、表语从句、同位语从句，还可引导让步状语从句，以上均不能换成if。但引导条件从句时

8、，只能用if，而不能用whether。e.g.It depends on whether we have enough time.They dont know whether to go there.Please come to see me if you have time.(五五)同位语从句同位语从句 若一个抽象名词之后有一个从句对它进行解释说明，这个从句就是同位语从句。同位语从句通常由连接词that引导，that不能省略，也可 由连接代词what,who,连接副词where,when,how等引导。同位语从句常放在抽象名词后，常见的抽象名词有:fact,news,message,info

9、rmation,idea,word(消息)，order,belief,suggestion,reply,answer,thought等。Have you got the news that Chinese football team could enter the final?你听说中国足球队可以进入决赛的新闻了吗?There is no doubt that the world will be better and better.毫无疑问，世界会越来越好。注意：that 引导的同位语从句最容易与定语从句相混淆。that引导同位语从句时，在从句中不作任何成分，但不能省略;that引导定语从句时

10、,在从中必须充当成分，在从句中作主语时不可省略,在从句中作宾语时可以省略。Have you heard the news that our team won the match?你听说我们队贏得比赛的消息了吗The news that he told you wasnt true.他告诉你的那个消息不是真的。同位语从句同位语从句定语从句定语从句Answers:(:(变式训练变式训练p p )(1)(2)(3)Summary 今天我们学习今天我们学习了了名词名词性从句的基本用法，以及名词性从句的基本用法，以及名词性从句的分类性从句的分类 主语从句主语从句宾语从句宾语从句表语表语从句从句同位语从句同位语从句TestFinish the exercises about the Noun Clause“课堂思学区”P .Thanks