Unit4ProtectingourheritagesitesGrammarandusage表语从句复习教案高二英语牛津译林版（2020）选择性

表语从句复习教案学习目标1）通过情景导入，了解表语从句的定义和作用，以及判断表语从句的方法；2）选择合适的引导词连接表语从句；3）正确运用表语从句完成写作；学习重点表语从句的定义和作用。学习难点辨析不同引导词在表语从句中的成分。Step1Leadin1.Dailygreeting2.Illustratethelearningobjectives3.Presentseveralsentences:Yesterdayishistory;Tomorrowismystery;Todayisagift;Thatiswhyit'scalledthepresent.Thenaskstudentsthisquestion:Whatisthesentencestructure?Step2Presentation概念呈现表语从句是指从句在句子中充当表语,紧跟在系动词之后，对主语进行解释、说明，使主语的内容具体化。表语从句的构成:主语+系动词+引导词+简单句语法探究探究发现1：系动词状态类：be感官类：look/sound/taste/smell等系动词持续类：stand/remain/keep/stay等系动词变化类：bee/get/turn/go等似乎类：seem/appear结果类：prove/turnout探究发现2：引导词2.1.引导词从属连词在从句中作/不作成分；有：that,whether等2.1.引导词连接代词在从句中作主语、宾语、表语或定语，有：who,what,which等连接副词在从句中作状语；有：when,where,how,why等2.1.1从属连词（that/whether等）用法归纳：a.that引导表语从句时，只起连接作用，作/不作句子成分，有/没有意义。b.whether引导表语从句时，只起连接作用，作/不作句子成分，通常翻译为“是否”。注意，引导表语从句时通常不用if。C.注意这个结构：Thereasonwhy...isthat...（why引导定语从句；that引导表语从句）主语是reason时，表语从句不能用because,只能用that。特殊用法：1)特定名词+系动词＋that+（should）do结构表示建议，要求，命令(advice,suggestion,request,proposal,idea,demand,order等名词后面的表语从句要用虚拟语气,即谓语动词用“should+动词原形”,should可省略。Mysuggestionisthatweall___________(take)anactivepartintheingsportsmeeting.特殊用法：2)because引导的表语从句常见于"This/That/Itis/wasbecause..."句型中That'sbecause…强调原因；That'swhy…强调结果。1)Hefailedthemathexam.That’s__________hewastoocareless.2)Hewastoocareless.That’s__________hefailedthemathexam.2.1.2连接代词（what/who/which/whose等）用法归纳：连接代词在表语从句中可充当主语、宾语、表语或定语。依据“缺什么补什么”原则确定正确的连词。所谓“缺什么补什么”是指从句与连词之间的关系。如果句子中缺主语，指人用who，指物用what。如缺宾语，指人用whom，指物用what。如缺定语用which或whose。2.1.3连接副词（when/where/why/how等）用法归纳：连接副词在表语从句中充当状语，可表时间、地点、原因、方式等，因此不能省略。依据“缺什么补什么”原则确定正确的连词。所谓“缺什么补什么”是指从句与连词之间的关系。如缺时间状语用when；地点状语用where。原因状语用why；方式状语用how。Step3Exercises一.真题链接：单项选择1.（2021年天津卷单项选择）WhatpuzzlesLily'sfriendsis________shealwayshassomanycrazyideas.A.whether B.why C.what D.when2.（2018年北京卷单项选择）Thisis________myfatherhastaughtme—toalwaysfacedifficultiesandhopeforthebest.A.how B.which C.that D.what3.（2018年江苏卷单项选择）Byboatistheonlywaytogethere,whichis________wearrived.A.where B.when C.why D.how二．语法填空1.Thefactis_______wehavelostthegame.2.Ifellsick!Ithinkitis_______youaredoingtoomuch.WhatIwanttoknowis__________helikesthegiftgivenbyus.三．双向翻译1.Thepointisthatweshouldsendsomeschoolsuppliestothosedisasterareassoastoexpressourlittlelove.（英译汉）_______________________________________________________________________2.如果你继续向前走，很有可能你会见到一个绝美的山峰。（汉译英）(Thechance/possibilityisthat)_______________________________________________________________________3.ThereasonwhyshewaslatewasthatshewatchedTVtillmidnightyesterday.（英译汉）_______________________________________________________________________四.结合语境用表语从句讨论关于的正确使用。Makesomesentencesaboutusingthephones：1.Myfeeling/opinion/belief/guessisthat…2.Thereasonwhy...isthat…3.This/Thatisbecause…4.This/Thatiswhy…5.Mysuggestion/advice/proposalisthat..._____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________Step4Conclusion表语从句的构成:主语+系动词+引导词+简单句2.系动词从属连词在从句中作/不作成分；有：that,whether等2.系动词连接代词在从句中作主语、宾语、表语或定语，有：who,what,which等连接副词在从句中作状语；有：when,where,how,why等3.引导词从属连词在从句中作/不作成分；有：that,whether等3.引导词连接代词在从句中作主语、宾语、表语或定语，有：who,what,which等连接副词在从句中作状语；有：when,where,how,why等4.重难点句型：Thereason(why...)isthat...Thatiswhy.../Thatis