2023届新教材新高考英语外研版一轮学案-语法专项突破专题四第二讲 名词性从句.docx
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1、第二讲名词性从句典例感悟答题微点1.(2020浙江卷7月)Over thousands of years, they began to depend less on could be hunted or gathered from the wild, and more on animals they had raised and crops they had sown.2.(2021福州市适应性练习)However, the fact is bats play a significant role in keeping a balanced ecosystem.3.(2021河南高三5月质检)
2、And we do now is to deal with the plastic that causes great damage to our sea life.4.(2021安徽黄山二模)While visiting Hangzhous West Lake and its surrounding beautiful hills, youll understand its been a great source of inspiration for artists, poems and philosophers throughout Chinese history.语法填空解题“3步骤”1
3、.根据两句之间的意义和逻辑关系,或者根据句式结构判断是否是名词性从句。2.一旦判断是名词性从句,就根据名词性从句中缺少什么句子成分来确定选用什么连接词。若从句中缺少主语、宾语或表语,用连接代词;若缺少状语就用连接副词。3.如果不缺少成分则要考虑意思是否完整,是否需要用whether/if; 如果不缺少成分且意思完整用that。1.解析:what考查名词性从句。根据语法结构可知,what引导宾语从句,作on的宾语,由于该宾语从句中缺少主语,同时空处表示“的事物”,故填what。2解析:that考查名词性从句。句意:然而,事实是蝙蝠在保持生态系统平衡方面起着重要的作用。分析句子结构可知,此处引导表
4、语从句,连接词在从句中不作句子成分,所以填that。3解析:what考查名词性从句。句意:而我们现在要做的就是处理掉那些对海洋生物造成严重损害的塑料。分析句子结构可知,该空引导的是一个主语从句,从句缺少宾语,故此处用连接代词what。4解析:why考查名词性从句。句意:当你游览杭州西湖及周围美丽的群山时,你就会懂得为什么在中国历史中那个地方一直是画家、诗人和哲学家的灵感之源。宾语从句中缺少原因状语。故填why。重点一主语从句1引导主语从句的词有:连接词that,whether;连接代词what,who,whose,whatever,whichever,whoever等;连接副词 when,wh
5、ere,why,how。When the delayed flight will take off depends much on the weather.延迟的飞机何时起飞在很大程度上取决于天气。That they were in truth sisters was clear from the facial similarity between them.从她们的面貌相似度就能清楚地看出是亲姐妹。What struck me most in the movie was the fathers deep love for his son.影片中最打动我的是父亲对儿子深厚的爱。易混辨析whet
6、her与if引导主语从句的区别:主语从句位于主句谓语动词前,表示“是否”,只能用whether而不能用if引导;若用it作形式主语,则if与whether可互换。Whether we can have clean drinking water lies in what effective measures will be taken by the government about water pollution.我们能否有干净的饮用水依赖于政府将采取什么样的有效措施处理水污染问题。It remains to be seen whether or not this idea can be put
7、 into practice.这一想法能否付诸实施还有待观察。2it作形式主语的主语从句(1)it作形式主语,从属连词that引导的从句作真正的主语。It isnt likely that I should accept such an offer as that.我不可能接受像那样的帮助。Its no wonder that he didnt want to go.难怪他不想去。It is decided that the meeting has been put off till next Monday.会议被推迟到下周一召开已经定下来了。It suddenly occurred to h
8、er that Joe was afraid of being alone.她突然想到乔害怕独自一个人呆着。(2)it作形式主语,连接代词、连接副词或whether/if引导的主语从句作真正的主语。It is uncertain what side effect the medicine will bring about, although about two thousand patients have taken it.尽管大约两千名患者已经服用了这种药,但是它会带来什么样的副作用还不清楚。It is not immediately clear whether/if the financi
9、al crisis will soon be over.经济危机是否会很快结束,短时间内不会很明显。题组微练单句语法填空1(2020江苏卷)It is not a problem we can win the battle; its just a matter of time.解析:whether 考查主语从句。句意:我们能否打赢这场战斗不是问题;这只是时间问题。分析句子结构并结合语境可知,It是形式主语,空处引导主语从句,表示“是否”,故填whether。2(2021郑州市第三次质检) But perhaps many tourists and San Franciscans treasur
10、e most about Chinatown is its food.解析:what考查主语从句。分析句子结构可知,空处引导主语从句,表示“的事物”,所以填what。3(2021合肥市第三次质检)It is estimated coral reefs contribute billions of dollars to the world economy annually, providing food, protection of shorelines, and jobs.解析:that考查主语从句。分析句子结构可知,It在句中作形式主语,空处引导主语从句,从句结构和意义完整,所以填that。
11、重点二表语从句1引导表语从句的词有:连接词that,whether;连接代词what,who,whose,whatever,whichever,whoever等;连接副词when,where,why,how,从句用陈述语序。Id like to start my own businessthats what Id do if I had the money.我愿意自己创业那就是如果我有钱将会做的事情。2as if/as though引导的表语从句as if/as though引导的表语从句常跟在be动词,seem,look,taste,sound,feel,appear等动词之后。The th
12、ick smog covered the whole city.It was as if a great black blanket had been thrown over it.厚重的烟雾覆盖着整个城市。好像把一个厚厚的黑色的毯子扔到它的上面。3because,why引导的表语从句because,why也可引导表语从句,但because引导的表语从句,主语不能是reason或cause(该结构常用that引导)。常用于以下句型:(1)This is because . 这是因为(强调原因)(2)The reason why .is that .的原因是(3)That is why . 那就
13、是的原因(强调结果)From space, the earth looks blue. This is because about seventyone 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%被水所覆盖。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。名师点津常见的表语从句句型:(1)It looks/seems as if . 好像;仿佛The question/proble
14、m is whether/when/where . 问题是(2)His dream/suggestion/aim/purpose is that .他的梦想/建议/目标/目的是(3)what从句bethat从句What surprised us most was that he came late again.最让我们惊讶的是他又迟到了。题组微练单句语法填空1(2020湖北八校二联) Another reason is many of todays young people believe its wrong to kill animals for food.解析:that考查表语从句。句意:
15、另一个原因是,今天的许多年轻人认为为了食物而杀死动物是错误的。分析句子可知,本句是表语从句,表语从句中不缺少成分,只缺少一个引导词,此时要用that引导表语从句。2(2018北京卷)This is my father has taught meto always face difficulties and hope for the best.解析:what考查表语从句。句意:这就是父亲教给我的永远面对困难并寄予最大的希望。根据句意可知,表语从句中taught me后缺少直接宾语“教会了我什么”,因此用what引导。重点三宾语从句1that连接宾语从句时通常可以省略(但多个并列的宾语从句中只能省
16、略第一个that),没有具体的意思,不充当句子成分,只是起连接作用。what引导时,在从句中充当成分,且有意义。Im writing to tell you that my uncle Li Ming is going to your city for a conference.我写信是想告诉你,我叔叔李明要去你的城市开会。2在whether/if连接的宾语从句中,whether/if意为“是否”,但在whether . or not结构中,或者whether引导的宾语从句作介词的宾语时,以及whetherto do结构中和whether引导的从句作少数动词(如leave,put,discus
17、s,doubt,know等)的宾语时,只能用whether,不能用if来替换。Weve offered her the job,but I dont know whether shell accept it.我们已经为她提供了这份工作,但我不知道她是否会接受。I dont know whether to set off for Beijing or not.我不知道是否出发去北京。3连接代词、连接副词引导宾语从句时不能省略,并在从句中充当句子成分。We promise whoever attends the party will have a chance to have a photo ta
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