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1、2019届高考英语二轮专题-名词性从句(附解析)+关于日本的作文:镜中日本名词性从句是英语中比较复杂的结构,既涉及词汇的用法,也涉及句法结构,是整个高中阶段英语学习的重点和难点之一。在学习名词性从句时,应注意从以下几个方面入手:一、要熟悉句子的各种成分,尤其是主语、宾语、表语、同位语的特点。二、要掌握引导名词性从句的连接代词、连接副词的分类及用法,以及that,if,whether的用法区别。三、要注意名词性从句中的特殊情况,例如:that的省略,语序问题,时态问题,语气问题。四、要注意疑问连接词what,when,where等引导名词性从句不表示疑问的情况。五、要注意whoever,whic
2、hever,whatever,whenever,wherever等引导从句的用法。特别需要注意的是要掌握it替代从句的用法。名词性从句是高考的热点,对于名词性从句考纲要求掌握以下内容:掌握主语从句、宾语从句、表语从句的基本用法,了解同位语从句的基本用法。要求考生在复习备考中应该掌握名词性从句的基本用法;一些易混引导词的辨析;句子的语序、否定前移;名词性从句和定语从句、状 语从句的辨析等。高考对名词性从句的考查仍将不会单纯考查其语法结构,而是将其融入一定的语境中来考查考生的实际综合运用能力,特别是将名词性从句与强调句、定语从句、状语从句等结合起来考查。考点1 主语从句引导主语从句的连接词主要有三
3、类:连接词that,whether;连接代词who,whom, whose, what, which, whoever, whomever, whichever, whatever;连接副词when,where,why,how等。1.连接词that,whether引导That the college will take in more new students this year is true.今年这所大学将招收更多新生是真的。Whether he can finish his task on time is of great importance.他是否能按时完成任务非常重要。特别提示(1
4、)if不能引导主语从句。(2)形式主语it替代主语从句。常见的it替代主语从句的句式主要有以下几种:AIt+系动词+形容词+that从句。如:It is quite clear that the whole project is doomed to failure很清楚,整个计划注定要失败。BIt+系动词+名词+that从句。如:It is our hope that the two sides will work towards peace我们的希望是双方能朝着和平的方向发展。C.It + be + v.ed形式+that从句。如:It is announced that the plan
5、has been successfully carried out.据宣布计划已经顺利实施。2.连接代词引导What we cant get seems better than what we already have.我们得不到的东西似乎比我们拥有的东西好。Who the letter was from is still unknown这封信是谁寄出的还不清楚。Whichever of you gets here first will get the prize你们当中第一个到达这里的人将获得奖项。3.连接副词引导How acupuncture reduces and relieves pa
6、in is unclear针灸是如何减轻和解除疼痛的还不清楚。Why dinosaurs suddenly disappeared still remains a mystery恐龙为什么突然消失了还是个谜。【典例】Your support is important to our work. _ you can do helps.A. However B. Whoever C. Whatever D. Wherever【答案】C【解析】题目考查主语从句。helps是谓语,“_ you can do”是主语部分,即主语从句。在主语从句中,do后缺少宾语,表示“任何事情”,因此用whatever引
7、导,故选C。考点2 宾语从句引导宾语从句的连接词主要有三类:连接词that,whether,if等,连接代词what,whose, who, whatever, whichever, whoever等,连接副词when,where,why,how等。1.连接词that,whether,if引导I think (that) you should turn to the teacher for help.我认为你应该向老师寻求帮助。I dont know if/whether he still lives here after so many years.我不知道这么多年后他是否还住在这儿。特别提
8、示1.whether/if都意为“是否”。一般情况下,它们可以互换,口语中常用if,但以下情况中,只能用whether。(1)与or not紧接连用时。如:Let me know whether or not you can come请让我知道你是否能来。(2)作介词的宾语从句时。如:We are interested in whether you will attend the meeting我们对你是否参加会议感兴趣。2.连接代词和连接副词引导。连接代词有what,who, whose, whatever, whichever, whoever等,连接副词有when,where,why,h
9、ow等。如:She asked me whose handwriting was the best in class.她问我班上谁的书法最好。Ill just say whatever comes into my mind.我想到什么就说什么。Do you know when the ancient Olympic Games began?你知道古代的奥运会是什么时间开始的吗?Ive been thinking about how we can make the newspaper more interesting我一直在考虑如何使我们的报纸更有趣。3宾语从句的语序在宾语从句中要用陈述句语序。
10、如:He asked me when we could set out the next day他问我第二天什么时候可以出发。Did you find out where she lost her car?你查出她在哪里丢的车了吗?4宾语从句的时态(1)当主语的谓语动词是一般现在时,其宾语从句的时态是任何适当的时态。如:She says(that)she works from Monday to Friday.她说她周一至周五上班。(从句是一般现在时)She says(that)she will leave a message on his desk.她说她要在他桌子上留个便条。(从句是一般将
11、来时)She says(that)she has never been to Mount Emei她说她从来没有去过峨眉山。(从句是现在完成时)(2)当主句的谓语动词是一般过去式时,其宾语从句的时态一般要用适当的过去时态。如:He said there were no classes yesterday afternoon他说昨天下午没有课。(从句是一般过去时)He said that he was going to take care of the baby.他说他会去照看这个婴儿。(从句时过去将来时)He said that they were having a meeting at th
12、at time.他说他们那时正在开会。(从句是过去进行时)(3)当宾语从句是表达客观真理和规律的句子时,其时态仍旧用一般现在时。如:The teacher told us that nothing is difficult if we put our hearts into it。老师告诉我们世上无难事,只怕有心人。He said that light travels much faster than sound他说光比声音传播得快。【典例】We choose this hotel because the price for a night here is down to $20, half
13、of _ it used to charge.A. that B. which C. what D. how【答案】C【解析】考查宾语从句。half of_it used to charge是$20的同位语,即原来价格的一半是现在的$20。另外,of后跟名词或名词短语构成介宾短语。所以,这里是宾语从句;宾语从句中的charge后面缺少宾语,所以用what来引导宾语从句,并充当宾语从句的宾语,故选C。考点3 表语从句常用连接词that, whether;连接代词who,whom,whose,which,what,whoever,whomever,whichever,whatever;连接副词wh
14、en,where,how,why引导。1.连接词引导The reason for his absence is that he hasnt been informed.他缺席的原因就是他没接到通知。The question remains whether they will be able to help us问题还是他们能否帮我们。2连接代词和连接副词引导The problem is who will take charge of this shop问题是谁将接管这家店铺。That is when I realized the importance of journalism那时我才意识到新
15、闻工作的重要性。特别提示(1)as/as if/as though引导的表语从句常跟在特定动词的后面,如:seem, appear, look, taste, sound, feel等。如:It sounds as if someone is knocking at the door.听上去好像有人在敲门。At that time, it seemed as though I couldnt think of the right word.当时我似乎怎么也想不出一个恰当的字眼来。(2)当主句的主语是reason时,表语从句一般由that引导,这种用法常见于句型The reason whyis that.如:The reason why he came late was that he got up late.他来得晚是因为起床晚了。【典例】The most pleasant thing of the rainy season is _ one can be entirely