Unit4AmazingScienceUnit4AmazingScienceTopic2Topic2WhenwasitWhenwasitinventinvented?ed?AmazingScienceWouldyouliketosaysomethingaboutthem?ComputerInvent/inAmerica/in1946ShenzhouⅥLaunch/inChina/in2005CloningExperiment/Dolly/DNALookandunderstandRobots—OurServantsintheFuture?Hello!Weareyourfriends.Wecanhelpyoudodangerousanddifficultwork.Haveyoueverseenarobot?Wouldyouliketodescribeitforus?1.Doyouthinkthatrobotswillbepartofourlivesinthefuture?2.Robotsaremeanttobeourservants,aren’tthey?3.Doyouthinkrobotscanthinkoractforthemselves?4.Whydoesthetitlehaveaquestionmark?Readthepassageanddiscussthequestionswithyourpartner.Findandcirclethewordsin1aaccordingtothefollowingmeanings,thenwritethemdown.1.totellsomebodythatsomethingbadordangerousmayhappensothattheycanpreventit()2.tomakesomethinghappenorappear（）3.apersonwhoispaidtodohouseworkforafamily（）4.sureandconfident,withoutanydoubts（）5.tobehaveinaspecialwaytowardssomebodyorsomething()warncauseservantcertaintreat1.Nooneknowsforcertain.没有人确切地知道。noone与none探究学习a.noone用来指人，其后不能接of短语，用做主语时，谓语动词用单数。Noonelikesapersonwithbadmanners.b.none既能指人又能指物，其后可以接of短语，当of后是可数名词复数时，谓语动词用单、复数均可。Noneofthestudentsis/areintheclassroom.c.特别注意：①——Howmanypeoplearethereinthatroom?——None.②——Whoisinthatroomnow?——Noone.——Howmuchwillthecarcost？——Ican’tsayforcertain.forcertain确切地2.allthetime=always一直，总是3.besurprisedat/by…对……感到惊讶besurprisedtodosth.4.Oncerobotscanthinkforthemselves,problemsmayappear.once在这用作连词，意为“一旦……就……”,引导时间状语从句。thinkforoneself独立思考探究学习Theboylistenedtotheradioallthetime.Theforeignvisitorsweresurprisedatthegreatwonders.IwassurprisedtohearIhadpassedtheexam.Onceyougetusedtoit,youwilllikeit.Ioftenteachmystudentstothinkforthemselves.5.Onescientistwarnsthatifrobotsstarttothinkforthemselves,theywillnolongerwanttobeourservants,butourmasters.a.warnwarnsb.(not)todo.告诫某人(不）做某事warnsb.about/ofsth.警告某人注意某事b.nolonger=not…anylongernomore=not…anymore6.Theymighttreatusaswenowtreatpets.他们可能会像我们现在对待宠物那样对待我们。a.might是may的过去式，可用于指过去，也可用于指现在，但语气缓和、委婉。b.treat…as…以……方式对待……/把……看做……探究学习7.bemeanttodosth.应该做某事8.inthemedicalfield在医学领域field有“学科，领域，专业”等含义9.makeacontribution/contributionsto…为……做贡献注意：makeacontribution/contributionstodoingsth.10.haveaneffect/effectson…对……有影响探究学习Ithinkthepolicearemeanttoprotectpeople.Hemadegreatcontributionstoscience.Weshouldmakeacontributiontoprotectingtheenvironment.Playingcomputergamestoomuchhasabadeffectonhealth.Trytoretellthepassageaccordingtothekeywords.RobotsPartofourlivesServantsDodangerousanddifficultworkThinkandactforthemselvesMastersLucky——petsUnlucky——awargreatlymedicalhealthinsidediscoveringeffectsListentothetapeandfillintheblanks.Formorethan100years,people’sliveshavebeenchanged______byinventions.Forexample,theX-raymachineisawonderfulinventioninthe______field.Ithasmadeagreatcontributiontohumans'______.Withitshelp,doctorscanexaminethe______oftheirpatients’bodies.Itisusedfor__________illnesses.Butitalsohasbad______onourhealth.SotheX-raymachineshouldbeusedcarefully.(录音p90-2)一、根据汉语意思补全英语句子。1.没人确切地知道我们的未来是什么样子Nooneknow...
