Unit4GlobalwarmingItisatLaoHekouSeniorHighSchoolthatwestudy.Wheredoyoustudy?Itisourschoolthathasabeautifullotuspond.ItistheculturalwallsthatonlyourschoolhasinLaoHekou.Itisat11:50thatwegohomeafterschool.11:50gohomeafterschoolItisIwhoteachyouEnglish.ItisatLaoHekouSeniorHighSchoolthatwestudy.Itisourschoolthathasabeautifullotuspond（荷塘）.ItistheculturalwallsthatonlyourschoolhasinLaoHekou.Itisat11:50thatwegohomeafterschool.ItisIwhoteachyouEnglish.DiscoveringusefulstructuresEmphaticpattern(强调句型):•Itis/was…that/who…DiscoveringusefulstructuresIt的用法(Ⅱ)在语言的使用过程中，有时我们要根据具体语境的需要对句中的某些部分进行强调，这时候我们就需要一种特殊的句型——强调句。1．强调句型的基本结构强调句型的基本结构为：Itis/was＋被强调部分＋that/who＋其他成分.例如：Itiswhatyoudothatmatters.重要的是你的行动。(强调主语从句)ItwasJohnwho/thatboughtanoldbikeyesterdayinamarketplace.是约翰昨天在市场上买了辆旧自行车。(强调主语)ItwasanoldbikethatJohnboughtyesterdayinamarketplace.昨天约翰在市场上买的是辆旧自行车。(强调宾语)ItwasyesterdaythatJohnboughtanoldbikeinamarketplace.约翰是昨天在市场上买了辆旧自行车。(强调时间状语)ItwasinamarketplacethatJohnboughtanoldbikeyesterday.昨天约翰是在市场上买了辆旧自行车。(强调地点状语)Itwasbecausethewaterhadrisenthattheycouldnotcrosstheriver.正是因为水涨了，他们没能过河。(强调原因状语从句)2．强调句型的一般疑问句式和特殊疑问句式(1)一般疑问句式：Is/Wasit＋被强调部分＋that/who＋其他成分？Eg.WasitduringtheSecondWorldWarthathedied?他是二战期间死亡的吗？(2)特殊疑问句式：特殊疑问词＋is/wasit＋that/who＋其他成分？宾语从句中对引导词强调：引导词+it+is/was+that+其他.Eg.Whyisitthatyouputoffthemeeting?你为什么推迟会议呢？Iwonderwhereitwasthatyoulostyourcar.我想知道你是在哪儿丢的车。3．对not...until结构的强调not...until结构的强调句型为“Itis/wasnotuntil...that...”在这一固定句型中，由于not已经前移，that后只能用肯定形式。Eg.(1)Hedidn'tgotobeduntilteno'clock.→Itwasnotuntilteno'clockthathewenttobed.直到10点他才睡觉。(2)Ididn'trealizeituntilIgotoffthebus.→ItwasnotuntilIgotoffthebusthatIrealizedit.•强调句注意事项当强调部分是人时，引导词可以用that,或者who.•ItisIwhoteachyouEnglish.当指过去的事情，用Itwas...•Itwasin1998thatourschoolwasfounded.被强调的部分是主语时，要注意句子的谓语动词和被强调部分的主语保持一致Itwashewhowaslate.Itwastheywhowerelate.无论被强调的是人还是物，单数还是复数，强调句型中一律用Itis…或者Itwas…Practice:Ⅰ.句型转换1．Hedidn'tattendthemeetingbecausehewasill.→Itwashewasillhedidn'tattendthemeeting.2．Whendidyoucallmeyesterday?→Whenyoucalledmeyesterday?becausethatwasitthat3．DidtheSecondWorldWarbreakoutin1939?→theSecondWorldWarbrokeout?4．Idon'tknowwhyyouwanttochangeyourmind.→Idon'tknowyouwanttochangeyou.Wasitin1939thatwhyitisthat5．Shedidn'trealizeitwastoolatetogohomeuntilthesunset.→Itwasthesunsetitwastoolatetogohome.6．Whathesaiddisappointedme.→Itwashesaiddisappointedme.whatthatnotuntilthatsherealized1.____shefirstheardofthemanreferredtoasanactor.AThatwasfromStephenBItwasStephenwhomCItwasfromJohnthatD.ItwasStephenthat2.Itwas__thecitywasliberated____hisfatherwasborn.A.when;thatB.that;whenC.that;thatD.when;when3.Itwas______thenextmorningthatIbegantothinkaboutwhereIwasgoing.A.beforeB.afterC.whenD.notuntil4.It______herbrother______shewillborrowthemoney.A.isfrom…thatB.is…whoC.is…whomD.is…thatCADAⅡ.单项选择5.It______onthetelephonethatIs...
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