2022年高中英语语法精讲精练---名词性从句3.docx
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1、精选学习资料 - - - - - - - - - 高中英语语法精讲精练 一、名词性从句的语法功能与分类在复合句中起名词作用的从句叫名词性从句- 名词性从句Noun Clauses;名词性从句的功能相当于名词或名词词组 , 它在复合句中能担任主语、宾语、表语、同位语、介词宾语等,因此依据它在句中不同的语法功能,名词性从句又可分别称为主语从句、宾语从句、 表语从句和同位语从句;主语从句: 假如一个句子在复合句中充当一个主语,那么这个句子就是主语从句;1 What he is going to do is not clear. 2 Who will be our monitorhasn t been
2、 decided yet.宾语从句: 假如一个句子在复合句中用作宾语,那么这个句子就叫做宾语从句;1 Jack said that he had something important to do . 2 I want to know if/whether there is a train to Beijing . 表语从句: 假如一个句子在复合句中用作表语,那么这个句子就叫做表语从句;The trouble is that I have lost his address . 同位语从句: 用作同位语的从句叫做同位语从句;一般情形下同位语从句跟在某些名词,如 news,idea,fact,wo
3、rd(消息),question,thought ,doubt,order,promise,hope, message, information 等的后面,用以说 明该名词所表达的详细内容;关联词多用从属连词 that;1 They were all very much worried over the fact that you were sick. 2 Where did you get the idea that I could not come. 3 Early in the day came the news that Germany had declared war on Russi
4、a. 【留意】 that 引导的同位语从句与定语从句的区分 定语从句是修饰限制它前面的名词,因此,它是属于形容词性从句;而同位语从 句属于名词性从句,它是用来说明它前面的名词内容的,或者说是说明前面名词的内容;换而言之:同位语从句和先行词是同等的关系;而定语从句是用来修饰先行词,是从属的关 系;名师归纳总结 - - - - - - -第 1 页,共 9 页精选学习资料 - - - - - - - - - 同位语从句 定语从句阐明它前面的名词详细内容;限定它前面的名词的范畴或补充一些The suggestion thatwe 情形;【should】 clean the room buy turn
5、s The suggestion 【that 】he put forward 区分is good. at the meeting is good. that 只起连接从句的作用,无意义; that 替代先行词在从句中不仅起连接在从句中不充当句子成分;不行省 作用,仍充当一个句子成分(主语或略;宾语);如在从句中作动词的宾语时 The news that Mr. Li will be our 可省略;new English teacher is true. 只有在内容方面可进一步阐明的名 The news 【that/which 】 he told me yesterday is true. 几
6、乎任何名词都可以带定语从句;词;(可以带同位语的名词多为 抽 The apple 【that/which 】 he gave 象名词 );如:news,fact, idea,me is a red one. question, suggestion 等;区分:Galileo collected facts _B_ the Earth goes round the sun. Galileo collected facts _D_ proved the Earth goes round the sun. A. which B. that C. of which D. A and B 【考点点拨】在
7、 suggestion ,advice ,request ,order 等意为 “ 建议;命令;要求” 的名词后,名词性从句中的谓语动词通常用“ should +动词原形 ” 的虚拟语气结构,句中的 should 可以省略; 例如:My suggestion is that we should start early tomorrow. 我的建议是我们明天一早就动身; This is our only request that this (should)be settled as soon as possible. 这就是我们唯独的恳求:尽快解决这个问题;此类词有:名师归纳总结 - - - -
8、 - - -第 2 页,共 9 页精选学习资料 - - - - - - - - - 一“ 坚持 ” insist 二“ 命令 ” order, command 三“ 建议 ” adviseadvice, suggestsuggestion, propose proposal 四“ 要求 ” require, request, desire, demand二、名词性从句连接词的选用名词性从句一般有以下三种连接词:1. 从属连词 that ,if 和 whether ;that 在句中无实际意义,只起连接作用,但不行以省略;if 不行以用于句首;Whether hell come here isn
9、t clear.He told us that they would help us though the whole work. 2. 连接代词主要有 who, whom ,whose ,what ,whoever ,whomever ,whosever , whatever ,whichever 等;Whoever comes is welcome. What concerns me most is who will be my teacher next term. 3. 连接副词主要有 when ,where ,why ,how ,whenever ,wherever ,however
10、等;None of us knows where these new books can be bought. The question under discussion is where we will hold the meeting. 留意 不能使用 if 的情形 a. 主语从句 b. 表语从句 c. 同位语从句 d. 介词后的宾语从句名师归纳总结 e. whether to do 做动词宾语不能用if to do. 第 3 页,共 9 页f. 与 or not 连在一起引导宾语从句时不用if. 留意1 :that / what的辨用- - - - - - -精选学习资料 - - - -
11、 - - - - - 1._ he wants is a book. 2. _ he wants to go there is obvious. 3. We should pay attention to _ the teacher is saying. 4. He told us _ he felt ill. 5. The result is _ we won the game. 6. This is _ we want to know. 7. I have no idea _ he did that afternoon. 8. The fact_ she works hard is wel
12、l known to us all. 规章:1.that 在名词性从句中不充当任何成分,只起连接作用2. what 除起连接作用外,仍在名词性从句中充当成分,可做从句的主语、宾语、或表语;留意 2 :whether 与 if 的辨用规章: 1.在由形式主语 it 引导的主语从句及在 vt 动词后面的宾语从句中,表“ 是否 ” ,whether/if 都可以用;2.在前置主语从句、表语从句、同位语从句和跟在介词后面的宾语从句中,表“ 是否 ” , 只能用 whether;3.在 whether or not 和 whether to do 中 whether 不能换成 if 练习: if / w
13、hether 1. I asked her _ she had a bike. 2. I dont know _ he is well or not. 3._ we will hold a party in the open air tomorrow depends on the weather. 4.It hasnt been decided_ we shall attend the meeting. 5.Were worried about _ he is safe.6. The question is _ he should do it. 7.The doctor can hardly
14、answer the question_ the old man will recover soon. 8. I dont know _ to go or to stay at home.附加练习1.I doubt_ he can speak English. 名师归纳总结 2.I dont doubt _ he can speak English.的辨用第 4 页,共 9 页留意3 :whatever与no matter what- - - - - - -精选学习资料 - - - - - - - - - Whatever 有两个用法,一是引导名词性从句(如主语从句、宾语从句、表语从句),二是
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