高考英语语法总复习名词性从句.pptx
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1、名词性从句一、名词性从句的种类名词性从句是起名词作用的从句,包括主语从句、宾语从句、表语从句、同位语从句。4、同位语从句(appositive clause)分类分类1、主语从句(subject clause)2、表语从句(predicative clause)3、宾语从句(object clause)1 1、English English is very useful for us.is very useful for us.2 2、We need to master We need to master EnglishEnglish well.well.3 3、The subject I a
2、m interested in is The subject I am interested in is EnglishEnglish.4 4、He want to learn the language,He want to learn the language,EnglishEnglish.请思考:请思考:连接副词:when、why、where、how(在从句中作状语)引导词引导词从属连词:that、if、whether(只起连接作用,在从句中不充当任何成分)连接代词:who、whom、what、which、whose、whoever whomever、whatever、whichever(
3、在从句中担任成分,如主语、表语、宾语或定语等)二、引导名词性从句的连接词(1)主语从句)主语从句That he will come to the party is certain.Whether well go outing depends on the weather.Who did the work is unknown.Whoever leaves the classroom should tell me.When they will come hasnt been made public.that引导主语从句时,常用引导主语从句时,常用it作形式主语作形式主语,常见句型有:itbe形容
4、词(如:obvious,true,natural,surprising,good,wonderful,funny,possible,likely,certain,probable,evident,clear,apparent等)that从句。It is evident that lung cancer is closely related to smoking.itbe名词(如:no wonder,an honour,a good thing,a pity,no surprise等)that从句。Its a great pity that its probably the last time
5、this will happen.itbe过去分词(如:said,reported,thought,estimated,expected,decided,announced,arranged,recognized等)that从句。It is known to all that physical exercises can improve our physical and mental health.类似句型还有:It cannot be denied that./It must be admitted that.it动词(如:seem,appear,happen,occur to sb.,ma
6、ke no difference等)that从句。It suddenly occurred to him that he had left his keys in the office.that引导主语从句,置于句首时,that不能省略。That we are invited to a concert this evening is good news to us.注意:注意:宾语从句通常放在主句谓语动词、介词、形容词后He suggested that we(should)make a trip to Hong Kong next year.I wonder whether it is tr
7、ue or not.Our success depends on how well we can cooperate with each other.I was surprised at what he said.He is confident(that)he wil win.(2)宾语从句)宾语从句如果宾语从句后面还有补语,需用it作形式宾语。He made it clear that the task should be completed by Sunday.1.在口语或非正式问题中,引导宾语从句的that常省略,但在下面情况下,that 一般不省略(1)当一个句子有两个或多个并列的宾语
8、从句时,除第一个从句的that外,都不可省略。He told me(that)the power would be cut off and that I should get out.(2)形式宾语it后的that及介词后面的that不能省略。2.如果主句主语是第一人称,谓语动词是think,consider,believe,suppose,expect,fancy,guess,imagine等,后面的宾语从句含有否定意义,否定转移。否定转移。I dont think this dress fits you well.我认为这件衣服不适合你。我认为这件衣服不适合你。注意:注意:表语从句通常位于
9、系动词be,look,remain,seem等之后The reason for his absence was that he was ill in hospital.That is why she is so happy.That is where you are mistaken.注:because,as,as if 也可以引导表语从句。Things are not as they seem to be.事情并不像表面上看起来的那样。I think it is because you are too nervous.It seems as if it is going to rain.(3
10、)表语从句)表语从句“The reason(why)is that”The reason why I got wet through is that I had no umbrella.Thats whyI had no umbrella.Thats why I got wet through.It/That is becauseI got wet through.That is because I had no umbrella.考点:考点:对名词进行“解释说明”的从句。可以跟同位语从句的名词常为news,idea,fact,promise,question,doubt,thought,ho
11、pe,message,suggestion,word(消息),order,fear,proof,belief,advice,demand,truth,wish等。最常见的是that 引导的同位语从句。Word came that the mayor will deliever a speech in our school.There is no doubt that he is guilty.I have no idea where we should go.(4)同位语从句三、whoever,whatever,whichever,wherever,whenever,however的用法它们的
12、作用等同于who,what,which,where,when,how,但语气加强了。这类词引导名词性从句时,不能用no matterwho/what.代替。1引导主语从句。Whoever did this job must be rewarded.2引导宾语从句,充当直接宾语。Ill give you however much money you need.3引导宾语从句,充当间接宾语。She will give whoever needs help a hand.1.名词性从句必须使用陈述句语序陈述句语序,不能用疑问句。How can we develop our reading skill
13、s?That is a question.The question is how we can develop our reasing skills.四、名词性从句的注意事项四、名词性从句的注意事项2、连接词whether/if(是否)的用法两者都可引导宾语从句,常可互换使用。但以下情况不能互换:1if 只用于引导宾语从句和不放在句首的主语从句。whether皆可2用if会引起误解,就要用whether。Please let me know whether you want to go.(此句如果把whether改成if,可作条件状语从句,因而产生歧义。)3宾语从句中的whether与or n
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