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1、Unit1Alandofdiversity主语从句复习1. 定义:用作主语的从句叫做主语从句。2. 构成:关联词+简单句3. 引导主语从句的关联词有三类:(1) 从属连词that。如:Thattheyweresisterswasunknowntoanyone.她们是姐妹这件事好象没任何人知道。(2) 从属连词whether。如:Whetherhe’llcomehereisn’tclear. 他是否会来这里还不清楚。(3) 连接代词who,whom,whose,what,which,whoever,whatever,whichever
2、连接副词where,when,how,why。如:Whatshedidisnotyetknown. 她干了什么尚不清楚。Howthishappenedisnotcleartoanyone.这事怎样发生的,谁也不清楚。Whoevercomesiswelcome. 不论谁来都欢迎。Whereveryouareismyhome----myonlyhome.你所在的任何地方就是我的家----我唯一的家。解释:1. 主语从句能用it作形式上的主语。常以it作形式主语的句型有:A. It+be+形容词(obvious,true,natural,surpr
3、ising,good,wonderful,funny,possible,likely,certain,probable,etc.)+that从句。如:Itiscertainthatshewilldowellinherexam.毫无疑问她考试成绩会很好。Itisprobablethathetoldhereverything.很可能他把一切都告诉她了。B. It+be+名词词组(nowonder,anhonour,agoodthing,apity,nosurprise,etc.)+that从句。如:It’sapitythatwecan’tgo. 很遗
4、憾我们不能去。It’snosurprisethatourteamshouldhavewonthegame.我们没赢这场比赛真意外。C. It+be+过去分词(said,reported,thought,expected,decided,announced,arranged,etc.)+that从句。如:ItissaidthatMr.GreenhasarrivedinBeijing.据说格林先生已经到了北京。ItisreportedthatChinahassentanotherman-madeearthsatelliteintoorbit.据报道
5、中国又成功地发射了一颗人造地球卫星。D.It+seem,happen等不及物动词及短语+that从句。如:ItseemsthatAliceisnotcomingtothepartyatall.Alice似乎不来参加晚会。IthappenedthatIwasoutthatday.碰巧我那天外出了。E. It+doesn’tmatter+连接代词或连接副词引起的主语从句。如:Itdoesn’tmatterwhethershewillcomeornot.她是否来这无关紧要。F. 当that引导的主语从句出现在疑问句中时,要以it作形式主语,而把
6、主语从句后置。如:Isittruethatthescientistwillgiveusalecturenextweek?下周那位科学家将给我们作报告是真的吗?Doesitmattermuchthattheywillnotcometomorrow?他们明天不来很要紧吗?2.注意连接代词whoever,whatever,whichever等引导主语从句的含义Whoevercomeswillbewelcome.(whoever=thepersonwho)来的人将受到欢迎。Whateverhedidwasright.(whatever=thethingthat)
7、他所做的事情是正确的。EXERCISES:1.▁▁▁hedoesn’tlikethemisveryclear.A.WhatB.ThatC.WhichD.Where2.▁▁▁peoplewilljoinusisnotveryimportant.A.HowmuchB.ThatC.HowmanyD.Many3.▁▁▁weshallmeetnexttimehasnotbeendecidedyet.A.WhetherandthatB.WhenandwhatC.WhenandwhereD.Whereandif4.▁▁▁istruethatthescientistwill
8、giveusalecturenextweek.A.T