Unit4AmazingScienceTopic3Chinaisthethirdnationthatsentapersonintospace.SectionDⅠ.Materialanalysis本课是九年级第四单元第三话题的第四课时。主活动是1a和Project。1a通过介绍机器人的迅猛发展，提出一个引人深思的问题：将来机器人还会像人类的仆人一样为人类服务吗？这个看似滑稽的问题其实蕴含了一个科学价值观：科技发展使人类成为主宰地球的王者，然而这是否又是葬送人类的最终利器呢？因为一切都要等到将来才能知道答案，所以现在所谈论的都只是可能性。这样，本课的功能也就自然而然地呈现了：谈论可能性。中国学生习惯通过汉语学英语，1b则体现了课程标准所提倡的“用英语学英语”。1c所设置的问题部分与1a有联系，又有一部分需要学生发表自己的观点，也就是要学生有自己的科学观。Project通过让学生“在做中学，在做中用”的方式，来整合本话题的相关知识。但是这个活动需要学生先收集资料、准备材料，只能在课后完成，故留作家庭作业。Ⅱ.Teachingaims1.Knowledgeaims：掌握本课的重点词汇和短语，归纳总结定语从句。2.Skillaims:能够总结定语从句的用法。能够谈论可能要发生的事情。能够通过1b,学会“用英语学英语”。
3.Emotionalaims:(optional)培养辩证的科学价值观。4.Cultureawareness:(optional)Ⅲ.Thekeypointsanddifficultpoints1.Keypoints:Wordsandphrases:certain,forcertain,onone’sown,warn,might,housework,sofar,besurprisedat,nolongerSentences:Nooneknowsforcertain,butmostpeoplethinkthatrobotswillbepartofourlives.Inafewyears,perhapsrobotswillthinkontheirown,justaspeopleusetheirbrainsandactforthemselves.Onescientistwarnsthatifrobotsstarttothinkforthemselves,theywillnolongerwanttobeourservants,butourmasters.Grammar:summarizetheattributiveclause,talkaboutpossibilities2.Difficultpoints：Thescientistalsowarnsthatifwearelucky,theymighttreatusaswenowtreatourpets.Perhapstherewillbeawarbetweenhumanbeingsandrobots.Inafewyears,perhapsrobotswillthinkontheirown,justaspeopleusetheirbrainsandactforthemselves.However,oncerobotscanthinkforthemselves,problemsmayappear.Ⅳ.Learningstrategies在“语法和功能”部分，通过和老师同学一起总结定语从句的用法，来整理本话题的语法。通过讨论pre-reading的问题，预测文章的内容。
在1b,尝试用英语释义来学习英语单词。通过Project,在合作的过程中学习制作英语墙报。Ⅴ.Teachingaids各种机器人的图片/做墙报用的8开的纸/彩笔/一本英英词典/ppt等。Ⅵ.TeachingproceduresStage(timeperiod)InteractionpatternsTeacheractivityStudentactivityRemarks1Revision（8mins)ClassactivityEncouragetheSsreadouttheirHMKwhichwasassignedinSectionC.T:Hi,boysandgirls,happytoseeyouagain.Haveyoufinishedyourhomework?T:Whowouldliketoshareyourpassage?Howaboutyou,xxx?ReadouttheirHMKwhichwasassignedinSectionC.Ss:Yes.S1:Allright.OneDayWithoutComputersItwasthemostboringdayIspenttoday.Iwokeupateightinthemorning.ThenIwasreadytohavemybreakfast.Butthecomputercontrolledcookerdidn’twork.Isent这种幻想式的作文很有趣，可以让学生把他们的作品贴在教室的“英语园地”中。
amessagetomydriver—therobot.Buthedidn’tcome.SoIhadtowalktotheworkplace.WhenIgotthere,therewasabigcrowd.Thedoorcouldn’topenasusual.Theytoldmethatthecomputerwhichcontrolledthedoorwasbroken.Nobodycouldgointotheroom.ThenIwenttosupermarkettobuysomefood.It’sclosed,too.Thenotesaidthecomputerdidn’twork.Idecidedtogohome.Isaid“OpenSesame”tothedoor.Oh,mygod!Itdidn’twork.Atlast,Ispentthewholedaywalkingalongthestreet!Untileightintheevening,everythingcamebacktolife.WhatabaddayIhad!
T:Wow!Whatwonderfulimagination!Anotherone?S2:…S3:…2Gettingstudentsreadyforlearning(3mins)ClassactivityPresentallkindsofpicturesofrobotstogiveabriefintroductiontorobots.T:Hi,class.Lookatthisstrangething.Whatdoyouthinkitis?T:No.It’snotatank.It’sarobot.It’sthefirstrobotintheworld.ItwasinventedbyEngelberger.Hewascalled“Thefatherofrobots”.T:Look!Therearemanypicturesofrobots.T:Youcanseerobotshavechangedalotinshapes.Today,wewilllearnaboutrobots.Learnsomethingaboutrobots.S1:坦克。最好能够根据机器人的发展历程来展示各种机器人。3Pre-reading(5mins)GroupworkLettheSsdiscussingroupsthequestionsin1atowarmup.Discussingroupsthequestionsin1atowarmup.老师要适时讲解部分生词。如：house+work=
T:Beforewebeginthenewlesson,I’dlikeyoutodiscussthequestionsin1afirst.Ifyoufinish,raiseyourhand.T:Whatareyouropinions,Group4?T:Whatalazyboy!Totellthetruth,Ialsowantarobottodohouseworkforme,haha!IfIhavearobot,itcandoallthehouseworkforme,likemyservant.Howaboutyou,Group1?T:Iagreewithyou.Ifyouwanttoknowmoreaboutrobots,justread1a.S1:Wealllikerobots.xxxsayshewouldlikearobottodohomeworkforhim.S2:Welikerobots,too.Theyaretoohelpfulinourdailylife.S3:…S4:…housework,serv(serve)+ant(…的人)=servant。4While-reading(5mins)IndividualworkLettheSsread1aanddo1b.Checktheanswers.T:Next,youwillread1a.ButbeforeRead1aanddo1b.Checktheanswers.尽管学生没学过“warn”
reading,pleaseread1b.Youhavetofindthewordsinthepassageaccordingtothemeaningsandthefirstletter.Whenyoufinish,putupyourhand.T:Hi,boysandgirls!Whocantelluswhatthefirstwordis?Howaboutyou,xxx?T:Itdoesn’tmatter.Pleasespellit.T:Yes,youareright.Followme,everyone.“warn”.T:Weusuallyuseitthisway:“warnsb.nottodosth.”or“sb.warnsthat…”Thesecondone?T:…S1:Sorry,Idon’tknowhowtopronounceit.S1:W-A-R-NSs:warnS2:causeS3:…S4:…，但通过英语解释，能知道第一个单词的意思是“警告”，然后再回到短文去寻找哪个单词可能是这个意思。这就是要培养学生“用英语学英语”的能力。老师可以利用这个环节来让学生学习新词:warn,certain,servant。5Post-reading(15mins)GroupStep1:LettheSsread1aagainandthendiscussthequestionsin1cingroups.Read1aagainandthendiscussthequestionsin1cingroups.
workT:Now,youwillread1aagain.However,youshouldreadthequestionsin1cfirst.Afterreading,pleasediscussthequestionsingroups.Ifyoufinishyourdiscussion,pleaseletmeknow.T:WhatareyouropinionsaboutQuestion1,Group3?S1:Wethinkrobotswillbepartofourlivesinthefuture.Becausecomputerscienceandrobottechnologywillmakeeverythingpossible.S2:Wethinkrobotswillplayimportantpartinmanyareasofwork,especiallyinfactories.S3:Wethinkrobotswillbepartofourlives,buttheywon’ttaketheplaceofhumanbeings.S4:…让学生在重读1a之前，先读1c的问题，带着问题去阅读，有利于提高学生的阅读效率。
T:Great!Eachgrouphasdifferentideas.Robotsareconsideredtobeourservants,aren’tthey?T:Ihopeso.Doyouthinkrobotscanthinkoractforthemselves?T:Itseemsthatyouhaveadeepdiscussion.Howaboutthelastquestion?T:Iagreewithyou.Thepassageisjusttalkingaboutpossibilities.Doyouknowwhichwordsareusuallyusedtotalkaboutpossibilities?T:“May”and“Might”.S5:…S6:Wethinktheyare.S7:Wedon’tthinkso.Theyaremachinesonly.Theydon’thavetheirownbrains.S8:Perhapsitispossible.Humanbeingsaretooclever.Theycanmakeimpossiblethingspossible.S9:Becauserobotsmaybecomemastersofthehumanbeings.S10:Becausewearenotsure,itisaquestion.S10:Perhaps,probablyS11:maybe
IndividualworkStep2:LettheSsread1athethirdtimetofindouttheusefulexpressionsandthesentenceswhichexpresspossibilities.T:Youhavelearnedhowtotalkaboutpossibilities.Now,read1athethirdtimetofindoutthesentenceswhichexpresspossibilitiesandusefulexpressions.Ifyoufinish,putupyourhand.T:Now,let’scheckthesentencestogether.Thefirstoneis…T:Thesecondoneis…T:…T:Thoughthepassageisjusttalkingaboutpossibilities,fromthispassage,weknowsciencemaybenotalwaysRead1athethirdtimetofindouttheusefulexpressionsandthesentenceswhichexpresspossibilities.Ss:Perhapsrobotswillthinkontheirown,…Ss:However,oncerobots…mayappear.Ss:…老师要在学生回答第4个问题时，顺势点明：文章所讲的只是可能性。并指出本话题的目的之一就是要谈论可能性。通常用这些词来表达可能性：perhaps,probably,maybe,may,might。
goodforus.Perhapsitwilldoharmtohumanbeingsinthefuture.T:Haveyoufoundanyusefulexpressions?S1:forcertain,sofar,..S2:besurprisedat,onone’sown,…S3:nolonger,between…and…6Summarizingandassigninghomework(9mins)ClassactivityClassactivityStep1:LettheSsreadthesentencesinGrammarandFunctionstogether.T:Wehavefinishedthistopic.It’stimetosumup.First,readthesentencesinGrammarandFunctionstogether.Ready?Go!Step2:LettheSssumupthegrammar.T:Now,let’ssumupthegrammarandexpressions.What’sthegrammarforthistopic?T:Yes.Whatelse?T:Right.xxx,canyousaysomethingaboutattributiveclause?ReadthesentencesinGrammarandFunctionstogether.Ss:…Sumupthegrammar.Ss:定语从句。S1:还有谈论可能性。S2:定语从句常用的关系代词有：who,which,that.Who
T:Soundsgreat!Whowantstoaddmore?T:Welldone.Howaboutpossibilities?T:Howwonderful!Step3:HMKT:Iknowyouaregoodatmakingwallnewspapers.ButI’mnotsurewhetheryouaregoodatmakingEnglishwallnewspapers,too.Today,you’llhavethechancetoshowyourtalent.Afterclass,pleaseworkingroupstomakeanEnglishwallnewspaperaccordingtotherequirementsinProject.Wewillchoosethebestoneandgivethisgroup用于指人，which用于指物，that既可以指人，也可以指物。S3:从句中的谓语动词要和先行词的数保持一致。S4：常用maybe,may,might,perhaps,probably来谈论可能性。学生喜欢竞争，渴望得到认可。所以老师要强调：墙报做得好的小组将得到礼物。其余也要张贴到“英语角”，这样每个小组都会认真对待这个任务。
presents.AllyournewspaperswillbeputupontheEnglishCorner.Ⅶ.BlackboarddesignChinaisthethirdnationthatsentapersonintospace.SectionDWordsandphrases:certainforcertainonone’sownwarnmight(may)house+work=houseworkGrammar:attributiveclause：定语从句relativepronouns：关系代词antecedents：先行词当先行词指人时，关系代词用“who/that”；当先行词指物体时，关系代词用“which/that”。关系代词在从句中的成分：主语，宾语关系代词的省略：在从句中作宾语时Possibilities:maymightperhapsprobablymaybeSentences:Thescientistalsowarnsthatifwearelucky,theymighttreatusaswenowtreatourpets.Perhapstherewillbeawarbetweenhumanbeingsandrobots.
Inafewyears,perhapsrobotswillthinkontheirown,justaspeopleusetheirbrainsandactforthemselves.However,oncerobotscanthinkforthemselves,problemsmayappear.
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