【课件】Unit 1 Learning about language 课件-2022-2023学年高中英语人教版（2019）选择性必修第二册.pptx

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1、LearningAboutLanguageBuildupyourvocabulary1 Find the words from the previous pages with the following prefixes or suffixes.Then add two more words for each prefix or suffix,and explain their meanings.PrefixWordsPrefixWordsre-micro-dis-trans-remove,recycle,revive（使）复苏（使）复苏discover,discount,disappearm

2、icroscope,microwave,microbe微生物微生物transform,translate,transplant移栽，移植移栽，移植前缀前缀释义释义单词单词re-reviewreturndis-disagreemicro-microscopetrans-transporttransnational跨国的；超越国界的跨国的；超越国界的again再、重新、重复再、重新、重复back回，向后回，向后oppositeof;not不、无、相反不、无、相反small(一般用于科技术语一般用于科技术语)微，小微，小change转变；转移转变；转移across,over,beyond,穿、越、超

3、穿、越、超SuffixWordsSuffixWords-ory-ial-ion-ologycontradictory,sensory,theoryinfection,intervention,conclusionsubstantial,official,commercialepidemiology,physiology,psychology后缀后缀释义释义单词单词-orysensory(感觉的；感官感觉的；感官的的)factory-ioneducation-ialbeneficial-ologysociology社会学社会学形容词和名词后缀形容词和名词后缀:作为形容词主要表示作为形容词主要表示

4、“有有.行行为特点的为特点的”，做为名词表示相关，做为名词表示相关的场所的场所名词后缀名词后缀：表性质、状态、程度：表性质、状态、程度形容词后缀形容词后缀：属于：属于的的,有有性质的，具有性质的，具有的的science,study科学；学问科学；学问2.Make phrases by combining the words in the left box with those on the right.Then complete the sentences using these phrases.1.Manyscientists_theviewthatitishumanactivitythat

5、hascausedglobalwarming.2.Hewasto_theaccidentbecausehedroveonthewrongsideoftheroad.subscribesuspectblamelinktoofforsubscribetoblamefor3.Theman_beingbehindtherobberywasseencrossingthestreet.4.Sinceheartdiseaseisoften_ourlifestylechoices,weneedtomakehealthylivinganimportantpartofourlives.suspectedoflin

6、kedtosubscribesuspectblamelinktooffor1.Itisnotunusualforanathletetobewell-knownwhileheisactive,andquicklyforgottenwhenhisathleticcareerisover.2.Imsureshelldealwiththechangesverywellbecauseshesveryadaptable.3.Replace the underlined parts with suitable words from the box.ahouseholdnamehandleraw,ahouse

7、holdname,substantial,statistics,handle3.Hewasreadytoservedinnertohisfriendswhenherealisedthathehadforgottentoturnontheovenandthemeatwasnotcookedyet.4.Heusedhisgreatinfluencetochangethethinkingofthescientificcommunityonthisissue.5.Scientistshavecollectedmoredatathanexpectedtoprovethetheory.rawsubstan

8、tialstatisticsraw,ahouseholdname,substantial,statistics,handleUKscientistsbelievetheymayhavefoundawaytofightthecommoncold.Itblocksakeyproteinin the bodys cells that is to _ for thespreadofcold-causingvirus.4.Read this passage about medical science.Complete it using the correct forms of the words bel

9、ow.blameinfection,multiple,decrease,severe,transform,proof,blame,substantialTargetingthehostratherthanthe_wasabitnon-traditional butmadesense becauseit wastricky totarget the virus.Cold-causing virus are not only of_kinds,theyalso_rapidly,meaningtheycanquicklydevelopresistancetomedicine.infectionmul

10、tipleinfection,multiple,decrease,severe,transform,proof,blame,substantialtransformResearchersareworkingonmakingaformofmedicinethatcanbetakendirectlyintooneslungs,to_the chance of side effects.Though these scientists havemade _ advances in their research,further_ is needed to make sure such drugs are

11、 not so_thattheyharmthebody.decreaseinfection,multiple,decrease,severe,transform,proof,blame,substantialsubstantialproofsevere1.Underline all the examples in the reading passage where noun clauses are used as the predicative.Then state their functions.Onetheorywasthatbadaircausedthedisease.Theotherw

12、asthatcholerawascausedbyaninfectionfromgermsinfoodorwater.Itseemedthatthewomanlikedthewaterfromthepumpsomuchthatshehaditdeliveredtoherhouseeveryday.ThetruthwasthatthewaterfromtheBroadStreetpumphadbeeninfectedbywaste.无词义，不充当成分无词义，不充当成分无词义，不充当成分无词义，不充当成分无词义，不充当成分无词义，不充当成分无词义，不充当成分无词义，不充当成分表语从句表语从句在句中在

13、句中作表语的从句称为表语从句作表语的从句称为表语从句。表语从句和主语指同一内容，它对主语进行表语从句和主语指同一内容，它对主语进行解释、说明，使主语的内容具体化。解释、说明，使主语的内容具体化。e.g.Thequestioniswhobrokethevase.Mysuggestionisthatwe(should)startearlytomorrow.表语从句由从属连词、连接代词或连接副词来引导。表语从句由从属连词、连接代词或连接副词来引导。连接词连接词连词连词that,whether连接代词连接代词what,who,whom,whose,which,whatever,whoever,whom

14、ever,whichever连接副词连接副词when,where,how,why其他连接词其他连接词asif/though,because连系动词连系动词be,feel,seem,look,appear,sound,remain,prove可以接表语从句的系动词有：1.状态系动词：be2.感官系动词：feel,seem,look,appear,sound,taste,smell3.持续系动词：stand,lie,remain,keep,stay4.变化系动词：become,get,grow,turn,go,come,run,fall5.终止系动词：prove,turnout 是是.起来起来保持

15、保持变得变得证明是证明是.结果是结果是.表语从句要点归纳表语从句要点归纳1.表语表语从句一定要用陈述语序从句一定要用陈述语序。eg.Oneadvantageofplayingtheguitaristhatitcangiveyouagreatdealofpleasure.2.that引导表语从句引导表语从句时，在时，在句中只起连接作用，句中只起连接作用，不充当不充当句子成分，无实际意义，一般不能省略。句子成分，无实际意义，一般不能省略。eg.ThetroubleisthatIhavelosthisaddress.3.whether引导引导表语从句表语从句时，起连接作用，意为时，起连接作用，意为“

16、是否，空间，到底是否，空间，到底”，在句中不作任何成分。，在句中不作任何成分。if不能引导表语从句。不能引导表语从句。eg.Thequestioniswhetheryourunclewillofferhelptous.4.连接代词连接代词what,which,who,whom,whose等除在句等除在句中起连接作用外，在从句中还充当主语、宾语、表中起连接作用外，在从句中还充当主语、宾语、表语或定语，本身具有词义。语或定语，本身具有词义。eg.Myhometownisnolongerwhatitusedtobe.Theproblemiswhowecangettoreplaceher.5.连接副词

17、连接副词where,when,why,how等除在句中起连接等除在句中起连接作用，在从句中还充当地点、时间、原因、方式作用，在从句中还充当地点、时间、原因、方式状语，本身具有词义。状语，本身具有词义。eg.Thequestioniswhentheywillstarttheproject.Thequestionishowhedidit.6.Thatisbecause.指原因或理由指原因或理由；Thatiswhy.则指由于某种原因所造成的后果则指由于某种原因所造成的后果。eg.Brucedidnotwatchthegamelastnight.Thatwasbecausehehadtohelphis

18、littlesisterwithherhomework.Bobhadseenthefilmbefore.Thatwaswhyhedidnotseeityesterday.(强调原因）强调原因）（强调结果）（强调结果）That/Itis/waswhy那是那是的原因的原因That/It/is/wasbecause那是因为那是因为 主语一般不用主语一般不用reasonHewasill.Thatsbecausehewassenttothehospital.Hewasill.Thatswhyhewassenttothehospital.注意：4.4.使用虚拟语气的表语从句使用虚拟语气的表语从句在表示建议

19、、劝告、命令含义的名词后的表语从在表示建议、劝告、命令含义的名词后的表语从句，谓语动词需用句，谓语动词需用“should+动词原形动词原形”表示，表示，should可省略可省略。常见的词有：。常见的词有：advice,suggestion,order,proposal等。等。Mysuggestionisthatwe(should)startearlytomorrow.asif/though引导表语从句时，在句子中不充当任何引导表语从句时，在句子中不充当任何成分，但有意义。译为：似乎，好像。成分，但有意义。译为：似乎，好像。asif/asthough引导的表语从句常跟在引导的表语从句常跟在loo

20、k,seem,sound,feel等后面等后面语气：语气：若表示真实情况，用陈述语气。若表示真实情况，用陈述语气。若表示非真实情况，用虚拟语气。若表示非真实情况，用虚拟语气。Helooksasifhewerearichman.Itsoundsasifsomeoneisknockingatthedoor.小结：小结：1.表语从句的构成表语从句的构成:引导词引导词+简单句简单句2.引导词引导词:连词：连词：that,whether,as,as if 连接代词：连接代词：who,what,which连接副词：连接副词：when,where,how,why 3.4个注意点个注意点:if不引导表语从句不

21、引导表语从句主语为主语为reason时，引导词用时，引导词用that语序语序thatthat引导表语从句时不能省略引导表语从句时不能省略2.Answer the following questions using the information from the reading passage as well as the predicative clauses.EXAMPLEWhatwasitthatJohnSnowshowedtotheworld?WhatJohnSnowshowedtotheworldwashowcholeracouldbeovercome.1.WhatwasSnowsd

22、iscoveryintwoparticularstreetsinLondon?SnowsdiscoveryintwoparticularstreetsinLondonwasthat_.morethan500peoplediedintendays2.WhatwasSnowdeterminedtofindoutduringthe1854outbreakofcholerainLondon?WhatSnowwasdeterminedtofindoutwaswhy_.3.WhatweretheexactplacesSnowmarkedonthemap?TheexactplacesSnowmarkedon

23、themapwerewhere_.thecholeraoutbreakwassosevereallthosewhodiedhadlivedintheparticularstreets4.WhatwasthefindingthatSnowannounced?Snowsfindingwasthat_.thepumpwatercarriedcholeragerms3.David is talking to Maria about their scientific research project.First complete Davids lines(A-E),using the words in

24、the box.Then put Davids lines in the correct order and practise the conversation.asif,that,what,who,when,how,why,whose,which,whetherA.Absolutely.Youmaynotbelieveit,butthatwas_happenedattheinitialstageofourgroupsresearchondevelopingavaccineformalaria.B.Yes,itis.Anditseemed_allthetheorieswereuseful,bu

25、tthefactwas_wecouldntpersuadeoneanotherthatonetheorywasbetterthananother.whatasifthatasif,that,what,who,when,how,why,whose,which,whetherC.Exactly.Theproblemwasnotabout_allourtheorieswereequallygood,butindeciding_theorytodependupon.D.Werealisedthatwhatwecaredaboutwasnot_aspectweneededtodevelopatheory

26、in,butrather_wecanreducethecostofavaccinewithoutreducingitseffect!whetherwhose/which/whatwhich/whathowE.Youreright.Atlast,webecamefocusedonthekeyissue,whichwas_wehadtocarryouttheresearchinthefirstplace.whyMaria:Thismixoftheoryanddataisoneofthekeycharacteristicsofwhatwecallscience.David:_Maria:Withyourtheoreticalframework?David:_Maria:Decidingonatheoryisdefinitelyofcriticalimportance.David:_ ACBMaria:Thiswaswhenyoushouldhavecalmeddownandgotdowntodoingsomesolidwork.David:_Maria:Sowhathappenedintheend?David:_ED