第05讲 名词性从句【暑假自学课】2023年新高二英语暑假精品课(外研版2019选择必修1)含解析.docx
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1、第05讲 名词性从句-【暑假自学课】2023年新高二英语暑假精品课(外研版2019选择必修1)第05讲 名词性从句1. 掌握名词性从句的三要素和类型判定。2. 掌握名词性从句中引导词的意义和用法1. 引入:有一个包括5个that的英语句子对吗?He said (that) that that that he used was wrong.I think that that “that ” that that student wrote on the blackboard was wrong.2. 定义:英语名词性从句成分是根据从句在主句中的位置划分的,任何一个句子,一旦处于主句某个成分的位置上
2、,它就成了相应的.语从句。二. 引导词的作用:1. that2. if/ whether 3. who/whom/whose/what4. why/where/when/how/how many连 词that/whether/if /because连接,不在从句中作成分连接代词what/which/who/whom/whose/whatever/连接且作主、宾、定语等连接副词when/where/why/how连接且做状语注意:1what引导名词性从句时,意为“什么”或“的”,在从句中用来作主语、宾语、表语或定语。2whever引导名词性从句时,其作用等同于其前面的连接词,意为“任何”或“无论
3、”,含有强调的语气。三名词性从句分类:名词性从句的判断:根据从句在整句话所作的成分来判断。1. When we will start is not clear._从句2. Mrs. Black wont believe that her son has become a thief._从句3. My idea is that we should do it right now. _从句 4. We heard the news that our team had won. _从句注意:名词性从句高考考查 引导词的选择与判断;在主语从句中只能用whether,不能用if词序:陈述语序;时态:注意
4、主从句时态的呼应四名词性从句三步曲:一分二划三看1. “一分”即分清从句类型2、 “二划”即划分出从句(用括号表示从句)3、 “三看”即看从句句意是否完整1) 句意不完整,选连接代词2) 句意完整,选连接副词考点一:主语从句:在句中充当主语的从句叫做主语从句。 1. That he will come here on Wednesday is certain.2. Whether he will come here on Wednesday is not certain.3. What he said is not true .一般来说主语从句都是放在句首,但有时为了使句子保持平衡,避免头重脚
5、轻,常用it作形式主语,从而把主语从句放后面。常以it作形式主语的句型有: 常考考向1:在实际应用中,常用it作形式主语,而将真正的主语that从句后置It + be + 形容词 that从句 It is necessary/ important /that 有必要/重要的是注意:此时从句语气要用虚拟语气:(should) +v.(原形),should可以省略。Eg. It is necessary that a new plan should be designed at once.It + be + -ed分词 that从句It is believed/said that 人们相信/说It
6、 is known to us/all that . 众所周知It has been decided that 已经决定Eg. Its reported that no one was killed in the earthquake. 拓展:It is suggested that“建议” 从句用虚拟语气(should + v.原), should 可以省。 It was suggested that we should start earlier at the meeting. It + be + 名词/形容词/过去分词 that从句It is common knowledge that
7、是常识It is a surprise/pity that . 令人惊奇/遗憾的是 It is a pity that we cant go. It + 不及物动词 that从句It appears that 似乎It happens that . 碰巧It occurred to me that 我突然想起常考考向2:在实际应用中,常用it作形式主语,而将真正的主语wh-词引导的主语从句后置It doesnt make any difference whether .or not.It remains to be seen whether.例1【单句填空】 It is said/report
8、edthat= Sb is said/reportedto do/to be doing/to have done.1. The bad weather is reported _ the passenger plane crash in Iran on January 9A to contribute to B contributing to C contributed to D to have contributed to 2._is the most important in life is that we should always be confident about the fut
9、ure.A. WhoB. WhichC. ThatD. What【答案】D【解析】考查主语从句。句意:生活中最重要的是我们总是要对未来充满信心。分析句子可知,空处引导一个主语从句,引导词在从句中作主语,表示“最重要的事情”,应用连接代词what引导。故选D项。3.It doesnt matter _you turn right or left at the crossing -both roads lead to the park.A. whetherB. howC. ifD. when【答案】A【解析】考查名词性从句。 句意:在十字路口,你是向右拐还是向左拐都没有关系两条路都到公园。分析句子
10、可知,设空处引导主语从句,it做形式主语,从句中不缺少成分,缺少“是否”的意思,并且后面由or,一般和whether连用,故选A。考点二:表语从句连接词that,whether,as, as if, because1) The reason for his absence was that he was ill.他缺席是因为他生病了。2) It looks as if it is going to rain.看起来天要下雨了。3) It may be because he is too young.这可能是因为他太年轻了。4) 区别:Thats because/why.This/Thatis/
11、waswhy.这/那是的原因This/Thatis/wasbecause.这/那是因为Thereasonwhy.is/wasthat.的原因是From space,the earth looks blue. This is about seventy one percent of its surface is covered by water. 从太空中看,地球是蓝色的。这是因为地球表面大约71%被水覆盖。The reason why he didnt pass the exam was that he was too careless. 他没有通过考试的原因是他太粗心了。【答案】becaus
12、e例2【单句填空】1. The question is _the film is worth seeing. A. if B. what C. whether D. how 2. The reason _ I have to go is _ my mother is ill in bed. A .why; why B. why; because C. why ; that D. that; because3. _ I cant understand is _ she wants to change her mind. A. What; why B. Which; how C. That; wh
13、y D. What; because4. I had neither a raincoat nor an umbrella. Thats _ I got wet all through.A. how B. because C. why D. that5. He is absent today. Thats _ he is ill.A. when B. because C. why D. that考点三:同位语从句连接词that(重点),whether,1) We heard the news that our team had won.我们听到消息说我们队赢了。2) There is some
14、 doubt whether he will come.他是否会来还不一定。3) There is no doubt that you should practice speaking English every day.毫无疑问,你应该每天练习说英语。总结: there be 句型相关的同位语从句1) There is no doubt that.2) There is no possibility/chance that.3) There is some evidence that.4) 区别It is no wonder that.例3【单句填空】活学活用:1. I have come
15、to the conclusion _it was unwise to do that.2. Along with the letter was his promise_ he would visit me this coming Christmas A. which B. that C. what D. whether3. _is no possibility _Bob can win the first prize in the match. A. there; that B. it ;that C. there ,whether D. it ; whether4.(天津卷)There i
16、s much chance _ Bill will recover from his injury in time for the race. A. that B. which C until D of 5. Information has been put forward _more middle school graduates will be admitted into universities. A.while B. that C. when D. as6. Its thirty years since we last met. - But I still remember the s
17、tory, believe it or not, _ we got lost on a rainy night. A. which B. that C. what D. when 7. Danby left word with my secretary _ he would call again in the afternoon. A. who B. that C. as D. which考点四:宾语从句宾语从句的连接词三句话:陈述句用that(可省略),特殊疑问句用疑问词,一般疑问句用if 或whether,表是否1)宾语从句如果是陈述句,用that连接, 无意义,可省略,但是作为主语不能省
18、略。He saidthat he would go to the zoo the next day.(that可以省略)She says that is a useful book 她说那是一本有用的书(that连词同时作主语,不能省略)2)宾语从句是一般疑问句,要用if 和whether连接,if常用于口语,whether常用语书面语,一般情况下可以互换I wonder if/whether it will rain tomorrow我想知道明天是否会下雨注意:以下情况一般只用whether不用if。1) 后接带to的动词不定式,只能用whether。I dont know whether
19、to do the task.2)与or not连用时,只能用whether。Im not sure whether or not he will come back tomorrow.3) 所引导的从句作介词的宾语时,只能用whether。It depends on whether it will be fine tomorrow.4)当引导的宾语从句位于句首,表示强调时,只能用whether。Whether he will succeed , I am not sure.他是否能成功,我不确定3、宾语从句是特殊疑问句,连词要用特殊疑问词what/ when/ where/ who等引导的宾
20、语从句,疑问词放句首,后面是陈述句语序此类宾语从句原来是特殊疑问句,变成宾语从句后要用陈述语序,由wh-开头的疑问词引导。包括who, whom, whose, what, which等连接代词和where, when, how, why等连接副词,这些引导词有各自的意思,在从句中要作相应的成分,不能省略。例如:He doesnt tell me what color he likes(作宾语)他没有告诉我他喜欢什么颜色。注意:特殊疑问词作主语,问句本身就是陈述句语序,变宾语从句无需调语序Do you know what is the matter with him?你知道他怎么了吗?Do y
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