Thereasonwhy定从isthat表从的句型在写作中的应用课件-高三英语一轮复习专项

（歌词填空、语法填空、写作指导）“Thereasonwhy定从...isthat表从...”的句型在书面表达中的应用【听歌学英语】导入：音乐欣赏（YouAretheReason）歌词填空1Shehangsouteverydaynearbythe1._______________Havingaharnican(啤酒品牌)falling2._______________Shelookssosexywhenshe'swalkingto3._______________Nobodyeverputa4._______________onherhandSwimtotheocean-shore5._______________intheseaSheisthestory,thestoryissheShe6._______________tothemoonandthestarsintheskyShiningfromhigh7._______________youshouldn'taskwhySheistheonethatyounever8._______________Sheistheheaven-sentangelyou9._______________Oh,shemustbethereason10._______________GodmadeagirlSheissoprettyallovertheworld...歌词填空1答案(思考：分析歌词中的从句种类和特点？)Shehangsouteverydaynearbythe1.beachHavingaharnican(啤酒品牌)falling2.asleepShelookssosexywhenshe'swalkingto3.sandNobodyeverputa4.ringonherhandSwimtotheocean-shore5.fishingintheseaSheisthestory,thestoryissheShe6.singstothemoonandthestarsintheskyShiningfromhigh7.aboveyoushouldn'taskwhySheistheonethatyounever8.forgetSheistheheaven-sentangelyou9.metOh,shemustbethereason10.whyGodmadeagirlSheissoprettyallovertheworld...Why引导定语从句（先行词为reason）的核心特点先行词：限定为reason，why引导的从句修饰reason，说明“……的原因”；成分作用：why在定语从句中作原因状语，相当于forwhich，可替换；从句完整性：why引导的定语从句本身是完整的主谓（宾）结构（缺状语，不缺主/宾）；高考核心坑点：Thereasonwhy

定语从句...is/was后接表语从句时，必须用that引导，不用because！学以致用语法填空Thereason__________

shedidn'tattendthemeetingwas

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shehadbeenill.Thereason

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herefusedtheinvitationis

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hehastolookafterhismother.Icouldn'tunderstandthereason

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hesuddenlyleftwithoutaword.Themainreason

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Irecommendthisbookis

__________

itisfullofpracticalknowledge.Thereason

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hefailedtheexamis

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hedidn'treviewcarefully.Themainreason

__________

Itakepartinthiscompetitionis

__________

itcanimprovemycomprehensiveabilities.大声朗读培养语感Thereasonwhyshedidn'tattendthemeetingwasthatshehadbeenill.Thereasonwhyherefusedtheinvitationisthathehastolookafterhismother.Icouldn'tunderstandthereasonwhyhesuddenlyleftwithoutaword.ThemainreasonwhyIrecommendthisbookisthatitisfullofpracticalknowledge.Thereasonwhyhefailedtheexamisthathedidn'treviewcarefully.ThemainreasonwhyItakepartinthiscompetitionisthatitcanimprovemycomprehensiveabilities.歌词填空2Theregoesmyheart1._____________'CauseyouarethereasonI'mlosingmy2._____________PleasecomebacknowTheregoesmymind3._____________AndyouarethereasonthatI'mstill4._____________I'm5._____________nowI'dclimbevery6._____________Andswimevery7._____________Justtobe8._____________youAndfixwhatI've9._____________Oh'causeIneedyouto10._____________thatyouarethereason...歌词填空2答案(思考：分析歌词中的从句种类和特点？)Theregoesmyheart1.beating'CauseyouarethereasonI'mlosingmy2.sleepPleasecomebacknowTheregoesmymind3.racingAndyouarethereasonthatI'mstill4.breathingI'm5.hopelessnowI'dclimbevery6.mountainAndswimevery7.oceanJusttobe8.withyouAndfixwhatI've9.brokenOh'causeIneedyouto10.seethatyouarethereason...（定从：that相当于why=forwhich）如何区分reason后面从句是定语从句还是同位语从句？看逻辑——从句回答“什么原因”→同位语从句；回答“哪个原因”→定语从句；同位关系：从句是对reason的内容阐释，回答“reason到底是什么”，reason与从句是等同关系（同位关系，that不能省略）。→Weacceptedtheirproposalforthesimplereasonthatiteffectivelyaddressedthecoreissueswehadbeenfacingformonths.修饰与被修饰关系：从句是对reason的限定修饰，回答“哪一个reason”，reason是从句的先行词，从句与reason是修饰与被修饰关系。→Themainreasonthatheprovidedduringthemeetingturnedouttobeinconsistentwiththesubsequentinvestigationreport.学以致用语法填空I'dliketoknowthereason__________you'resolate.Wearen'ttravelingabroadforthesimplereason__________wecan'taffordit.Thereason__________hetolduswasnotconvincing.Idon'tknowthereason__________shehatesmesomuch.Givemeareason__________couldsatisfymycuriosity.Thereason__________hewasallergictoalcoholcouldn'tconvincehisfriendsandthereforehewasdrunkaftertheparty.Thereason__________shelefthomewas__________shehadaquarrelwithhermother.Itisthereason__________heexplainedtous__________madeusfinallychangeourminds.Itisthereason__________hishealthconditionsuddenlyworsened__________madehimcancelthetrip.大声朗读培养语感I'dliketoknowthereasonwhyyou'resolate.Wearen'ttravelingabroadforthesimplereasonthatwecan'taffordit.Thereasonthat/whichhetolduswasnotconvincing.Idon'tknowthereasonwhyshehatesmesomuch.Givemeareasonthat/whichcouldsatisfymycuriosity.Thereasonthathewasallergictoalcoholcouldn'tconvincehisfriendsandthereforehewasdrunkaftertheparty.Thereasonwhyshelefthomewasthatshehadaquarrelwithhermother.Itisthereasonthat/whichheexplainedtousthatmadeusfinallychangeourminds.Itisthereasonthathishealthconditionsuddenlyworsenedthatmadehimcancelthetrip.“Thereasonwhy定语从句...isthat表语从句...”在书面表达中的应用场景1：议论文/观点类写作：用于分析现象原因、论证自己的观点，适配“现象解释类”“观点议论类”作文，让逻辑更严谨、表达更正式。Thereasonwhymorestudentschooseonlinecoursesisthattheyaremoreflexibleandcost-effective.Thereasonwhyweshouldattachgreatimportancetoreadingisthatitcanbroadenourhorizonsandenrichourinnerworld.Thereasonwhymanypeopleadvocatelow-carbonlifeisthatitisbeneficialtoprotectingtheearth'secologicalenvironment.“Thereasonwhy定语从句...isthat表语从句...”在书面表达中的应用场景2：说明文/现象分析：用于客观解释某一社会/生活/学习现象的成因，无主观情绪，侧重“客观陈述”，适配说明文、事实报告等。Thereasonwhythenumberofwildanimalsisincreasingisthatthegovernmenthastakenstrictmeasurestoprotecttheirhabitats.Thereasonwhythiskindofplantcangrowinthedesertisthatitcanstorealargeamountofwaterinitsleaves.Thereasonwhythetrafficconditionherehasimprovedalotisthatthelocalgovernmentbuiltmoreoverpassesandoptimizedthetrafficlights.“Thereasonwhy定语从句...isthat表语从句...”在书面表达中的应用场景3：书信/邮件（道歉、解释、说明类）：用于正式场合向对方解释某件事的原因，比简单的“because”更正式、礼貌，适配道歉信、解释信、工作/校园正式邮件等。ThereasonwhyIcouldn'tattendyourbirthdaypartylastnightisthatIhadtolookaftermysickmotherathome.ThereasonwhyIaskforathree-dayleaveisthatIneedtogobacktomyhometowntodealwithsomeurgentfamilyaffairs.Thereasonwhywedelaythedeliveryofthegoodsisthattherewasasuddenproblemwiththetransportationsystem.“Thereasonwhy定语从句...isthat表语从句...”在书面表达中的应用场景4：校园/学术小分析：用于分析文本、数据、事件的成因，适配读后感、读书报告、校园小分析文等，提升表达的逻辑性。Thereasonwhytheherointhenovelchosetosacrificehimselfisthathewantedtoprotectthepeoplehelovedandhismotherland.（读后感）Thereasonwhytheexperimentachievedasuccessfulresultisthatwefollowedthestepsstrictlyandadjustedthestandardsintime.（实验报告）例句重现语块填空Thereasonwhywe______________________________（应该重视阅读）isthatitcanbroadenourhorizonsandenrichourinnerworld.Thereasonwhymanypeople______________________________（倡导低碳生活）isthatitisbeneficialtoprotectingtheearth'secologicalenvironment.Thereasonwhythenumberofwildanimalsisincreasingisthatthegovernment______________________________（采取了严格的措施来保护他们的栖息地）.Thereasonwhythetrafficconditionherehasimprovedalotisthatthelocalgovernment______________________________（建造了更多的天桥）andoptimizedthetrafficlights.ThereasonwhyIaskforathree-dayleaveisthatIneedtogobacktomyhometown______________________________（去处理一些迫切的家务事）.Thereasonwhywe______________________________（延迟送货）isthattherewasasuddenproblemwiththetransportationsystem.Thereasonwhytheherointhenovel______________________________（选择牺牲自己）isthathewantedtoprotectthepeoplehelovedandhismotherland.Thereasonwhytheexperimentachievedasuccessfulresultisthatwefollowedthestepsstrictlyand______________________________（及时地调整了标准）.大声朗读培养语感Thereasonwhyweshouldattachgreatimportancetoreading（应该重视阅读）isthatitcanbroadenourhorizonsandenrichourinnerworld.Thereasonwhymanypeopleadvocatelow-carbonlife（倡导低碳生活）isthatitisbeneficial