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1、秘笈08名词从句考点1主语从句主语从句是在复合句屮担任主语的句子。其特点有:(1)引导词:从属连词that,whether;连接代词who,what,which;whoever,whatever,whichever;连接副词when,where,how和why。(2)语序:陈述句语序(3)在主语从句中只能用whether,不能用ifThathewillwinthematchiscertain.Ttiscertainthathewillwinthematch.1.i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〃头重脚轻〃,常用it作形式主语,从而把主语从句放后而。常以i
2、t作形式主语的句型有:①Itis+形容词+that...苛Ttiscertainthatshewi11dowel1inherexam.毫无疑问她考试成绩会很好。②Itis+名词词组(nowonder,anhonour,agoodthing,apity,nosurprise,commonknowledge,asurprise,afact,etc.)+that…crJt,sapitythatwecan,tgo.很遗憾我们不能去。③Itis+过去分词(said,reported,thought,expected,decided,announced,arranged,etc・)+that・
3、•・bithasbeensuggestedthatmuchshouldbedonetopreventtheriverfrombeingpolluted.有人建议应做更多的工作阻止河流遭受污染。①Itappears/seemsthat•・•
4、lthappensthat•・•
5、ltoccurredtomethat.•・
6、ltturnedoutthat•・•Gt.turnedoutthatnobodyrememberedtheaddress.结果发现没人记得这地址。(§)Ttdoestmatterthat...
7、Ttmakesnodiffereneethat…育Itdoesn,tmatt
8、erwhethershewi11comeornot.她是否来这无关紧要。1.当that引导的主语从句出现在疑问句屮时,要以it作形式主语,而把主语从句后置。疔Doesitmattermuchthattheywillnotcometomorrow?他们明天不来很要紧吗?2.当主语从句出现在感叹句屮时,要以it作形式主语,而把主语从句后置。少Howstrangeitisthatthechildrenaresoquiet!孩子们这么安静真奇怪!與例剧折1.(2017•北京卷•单项填空)Everyyear,makesthemostbeautifulkitewillwinaprizeinth
9、eKiteFestiva1・A.whateverB.whoeverC.whomeverD.whichever【答案】B【解析】考查主语从句。分析句子结构可知,makesthemostbeautifiilkite作主语,且所填词指人,既作从句的主语又作主句的主语,所以选whoever(whoniev"不能作主语)。句意:每年,在凤筝节上风筝做得最漂亮的人都会嬴得奖品。2.(2016•江苏卷•单项填空)Itisoftenthecaseanythingispossibleforthosewhohangontohope.A.whyB.whatC.asD.that【答案】D【解析】考查主语从
10、句。本句中it是形式主语,真正的主语是连接词that引导的主语从句,连接词that在本句中不充当任何成分,只是一个引导词而已,不能省略。连接副词why要在句中作状语,连接代词what通常在句中作主语、宾语或表语等;as通常不引导名词性从句。句意:对于那些心存希望的人一切皆可能是事实。故D正确。【归纳总结】III主语从句的规律IIIIII规律一、主语从句一律用陈述语序,即主语在前,谓语在后。IIIII例1.Whenwillhecomeisnotknown.•IE:Whenhewillcomeisnotknowrt
11、2・Hewillnolcometothemeeting(hiseveningistrue.iiii[正:Thathewillnotcometothemeetingthiseveningistrue.;I规律三、whether可以引导主语从句,放在句首,但if不能IIIII彳列3.Ifthemeetingwillbeputoffhasnotbeendecidedyet.iiii
12、止:Whetherthemeetingwillbeputoffhasnotbeendecid