Unit+2+Bridging+Cultures+Discover+Useful+Structures+课件【知识精讲精研】高中英语人教版（2019）选择性必修第二册

Unit2Period2DiscoverUsefulStructures新课导入主语宾语表语同位语※Thebookisinteresting.※IlikeEnglish.※Mymotherisadoctor.※IcomefromFuding,abeautifulcity.判断下列句子中划线名词充当什么成分1.能复习、归纳名词性从句的功能和用法；2.能够正确使用名词性从句表达意义。课堂学习Studythesentencesbelowandmarkthenounclauses.Whatisthefunctionofeachnounclauseinthesentences?11.WhatseemedstrangebeforenowappearsquitenormaltoXieLei.2.WhatsurprisedXieLeiwasthatshefoundherselfspeakingupinclassafterjustafewweeks.3.It’simportantthatXieLeikeepsabalancebetweenherstudiesandhersociallife.以上各句都是主从复合句，句中的从句在句子中的功能相当于名词或名词词组；他们都是名词性从句。名词性从句一个句子在复合句中充当名词的作用（即充当主语、宾语、表语或同位语），那么这个句子叫做名词性从句。根据作用，名词性从句可以分为:主语从句（TheSubjectClause）宾语从句（TheObjectClause）表语从句（ThePredicativeClause）同位语从句（TheAppositiveClause）※引导名词性从句的连接词1.连接代词：who,whose,whom,

what,which。有词义，在从句中担任成分，如主语、表语、宾语、或定语等。2.连接副词：when,where,why,how。有词义，在从句中担任成分，作状语。3.连接词：that,whether,if,asif。that无词义，在从句中不担任成分，有时可省略；if(whether),

asif虽有词义，但在从句中不担任成分。一、主语从句1.主语从句在复合句作主语。e.g.Whowillgoisnotimportant.2.用it作形式主语，主语从句放在句末。e.g.Itdoesn’tmattersomuchwhetheryouwillcomeornot.3.that引导主语从句时，不能省略。e.g.Thathesuddenlyfellilllastweekmadeussurprised.主语从句中的几点注意事项：1.主语从句通常位于句首，当主语较长时放在后面，句首使用it做形式主语。2.当主语从句引导词为that时虽无意义，但是不可以省略。3.主语从句不能使用if引导。二、宾语从句1.宾语从句在复合句中作宾语。引导宾语从句的连词that一般可省略。e.g.Ihope(that)everythingisallright.2.介词之后的宾语从句，不可用which或if连接，要分别用what或

whether。e.g.I'minterestedinwhetheryou’vefinishedthework.I'minterestedinwhatyou’vesaid.3.whether与if都可以引导宾语从句，常可互换。但下面情况不能互换。①宾语从句是否定句时，只用if，不用whether。e.g.Iwonderifitdoesn’train.②用if会引起误解，就要用whether。e.g.Pleaseletmeknowwhetheryouwanttogo.(此句如果把whether改成if，容易当成条件句理解)

③宾语从句中的whether与ornot直接连用，就不能换成if。e.g.Idon'tknowwhetherornotthereportistrue.④介词后的宾语从句要用whether引导。不能换成if。e.g.Itdependsonwhetherwehaveenoughtime.宾语从句三要素：连接词（第一个that可以省略）语序（陈述句语序）时态（主句现在时或将来时从句根据句意选择任意时态；主句过去时从句使用与原句相对应的过去时态；主句为客观事实、自然现象等时，从句使用一般现在时）三、表语从句1.表语从句在复合句中作表语，位于系动词之后。e.g.Thequestionwaswhocouldgothere.2.引导表语从句的连接词that一般不可省去。e.g.Myideaisthatwecangetmorecomradestohelpinthework.常见的系动词有：be(am,is,are,was,were),become,look,sound,feel,taste(看、听、尝起来),seem,appear(似乎、好像)等四、同位语从句在复合句中作名词的同位语的从句叫做同位语从句。同位语从句对名词做进一步解释，说明名词的具体内容。通常位于抽象名词后。fact(事实),idea(想法),reason(原因),thought(想法),order(命令),doubt(怀疑),news(消息),hope(希望),truth(真实),belief(信念),

suggestion(建议),advice(建议),view(观点),promise(承诺),request(要求),proposal(提议/建议),demand(要求),question(问题)主语从句宾语从句表语从句同位语从句that一般不省略可以省略一般不省略一般不省略whether/if(是否)放在句首时只用whether视情况用whether/if多用whether多用whether特殊疑问词注意：语序要用陈述句语序名词性关系从句注意：语序要用陈述句语序[即学即练]

单句语法填空1.I'mnotsure_______ismorefrightened,meorthefemalegorilla(大猩猩)thatsuddenlyappearsoutofnowhere.2.Itworriesmymom_____sheisbeginningtogetalittlefat.3.Ourcountryisdevelopingatanamazingspeed,andthisis______makesmefeelsoproud.4.Thefact_______twothirdsofallgirlsareonadietworriestheirparentsandteachersalot.whothatwhatthat宾语从句主语从句表语从句同位语从句Combineeachpairofsentencesusingthewordsinbrackets.21.Theadvisortalkedaboutmaintainingreasonableexpectationswhenstudyingabroad.HiswordswerequitehelpfultoMay.(what)2.Studentshavetowritecountlessresearchpapersaspartoftheircoursework,ThiswasnotsomethingthatChenHaowasreadyfor.(that)3.Whowillbethesuccessfulapplicantforthesummerjobatthelawfirm?Thisisthequestion.(who)WhattheadvisortalkedaboutmaintainingreasonableexpectationswhenstudyingabroadwasquitehelpfultoMay.ThatstudentshavetowritecountlessresearchpapersaspartoftheircourseworkwasnotsomethingthatChenHaowasreadyfor.Thequestioniswhowillbethesuccessfulapplicantforthesummerjobatthelawfirm.4.Exposuretoanothercultureanditspeoplecangiveexchangestudentsgreatinsights

intotheworld.Thisisanadvantageofstudyingabroad.(that)5.SchoolsintheStatesarequitemulticultural,withstudentsandteachersfrommanydifferentethnicbackgrounds.ThisimpressedLiuYang.(It…that)6.ShouldshesticktoherownwayoflifeorfollowtheAmericanway?Thisisherconfusion.

(whether)Anadvantageofstudyingabroadisthatexposuretoanothercultureanditspeoplecangiveexchangestudentsgreatinsightsintotheworld.ItimpressedLiuYangthatschoolsintheStatesarequitemulticultural,withstudentsandteachersfrommanydifferentethnicbackgrounds.HerconfusioniswhethersheshouldsticktoherownwayoflifeorfollowtheAmericanway.expectation

n.期望；预期；期待Eg:Theadvisortalkedaboutmaintainingreasonableexpectationswhenstudyingabroad.导师谈到了在国外学习时要保持合理的期望。Keypoints[归纳拓展]①in(the)expectationofsth 期望……beyond(sb's)expectations 超出(某人的)期望②expectvt.

预期，预料，期待expecttodosth 预期做某事；期待做某事

expectsbtodosth 预期某人做某事；期待某人做某事③expectedadj.预料的；预期的unexpectedadj.未预料到的；意外的[即学即练]

单句语法填空1.Therewasageneral__________(expect)thathewouldwin.2.Weexpect_______(see)furtherimprovementoverthecomingyear.expectationtoseeexpose

v.暴露；揭露；接触

exposure

n.接触；体验；暴露；揭露Eg:Exposuretoanothercultureanditspeoplecangiveexchangestudentsgreatinsightsintotheworld.接触另一种文化及其人民可以让交换生对世界有更深刻的认识。[归纳拓展]exposeoneselfto… 把某人自己暴露在……beexposedto… 被暴露；被揭露[即学即练]

单句语法填空1.Hewonderedaboutitashestretchedhisbodyandletit_______(exposure)tothesun.2._________(expose)toleadisknowntodamagethebrainsofyoungchildren.exposeExposureCompletethepassagewithA-Dfromthebox.3AthatheenjoysbeingwithChinesepeopleBHowhecanlearntoappreciateitmoredeeplyCWhatimpressedhimfirstDthatpeoplecaneatalmosteverythingwithchopsticksAfterjustafewmonthsinChina,Leon,anexchangestudentfromGermany,saysthathehasfalleninlovewithChineseculture.____wastheChinesefood.Hecouldn'tbelievehowmanydifferentkindsofChinesefoodthereare!Somethingelsehefoundimpressivewas____.Thenthere'sChina'scolourfulculture,fromarttomusic,andfromcalligraphytoliterature.____remainsanimportantgoal

forhim,asheistrulyfascinatedbyit.LeonisalsoamazedbytheconvenienceofcashlesspaymentsinChina.Hecangooutsidewithoutanyneedforcash—allheneedsishismobilephone!ThebiggestreasonwhyhelovesChina,however,is____.Hehasmadegreatfriendshere—friendsthathewillstillrememberlongafterhisdeparture.CDBAWhatotherthingsdoyouthinkmightattractinternationalstudentstoChina?TherearemanyotherthingsthatmayattractinternationalstudentstocometoChinatostudy.Forexample,manywillbeinterestedinlearningmoreabouttraditionalChinesemedicineandhowitcanbebeneficialtopeopletoday,experiencingthetechnologyboomthereandallthefastandconvenientwaysviaappsonyoursmartphone,seeing

importanthistoricalmonumentssuchastheGreatWallandtheTerracottaWarriorsMuseum.Workinpai