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Topic2Topic2WhenwasitWhenwasitinventinvented?ed?仆人，佣人确切，肯定家务劳动行为；守规矩贡献；捐款为……做贡献servantforcertainhouseworkbehavecontributionmakeacontributiontoDoyouknowthem?Pleaseenjoysomewonderfulpictures.Haveyoueverseenarobot?DoyouthinkrobotswillbecomeourservantsintheFuture?1.Whatcanrobotshelpusdo?Theycanhelpusdodangerousanddifficultwork.2.Robotsaremeanttobeourservants,aren’tthey?Maybe.Watchtheflashof1aandanswerthequestions.bemeanttodosth.应该做某事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nonea.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.—②Whoisinthatroomnow?—Noone.虽然他肯定那人是坏人，但他却什么也不敢说。He_______________thatmanwasabadman,buthedidn’tdaretosayanything.know\sayforcertain确切知道\肯定地说knewforcertain2.workfor…受雇于；从事……工作3.besurprisedat…对……感到惊讶besurprisedtodosth.为……而惊讶或惊喜Mysister______aforeigncompany.Theforeignvisitors_______________thegreatwonders.I________________hearthatIhadpassedtheexam.worksforweresurprisedatwassurprisedto4.Oncerobotscanthinkforthemselves,problemsmayappear.一旦机器人能独立思考，问题就可能产生了。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Onceyougetusedtoit,youwilllikeit.Ioftenteachmystudentsto_________________.thinkforthemselves5.Onescientistwarnsthatifrobotsstarttothinkforthemselves,theywillnolongerwanttobeourservants,butourmasters.一位科学家警告说如果机器人开始独立思考，他们将不再愿做我们的佣人，而做我们的主人。warnsb.(not)todo.告诫某人(不）做某事warnsb.about/ofsth.警告某人注意某事nolonger=not…anylonger(延续动词）nomore=not…anymore(短暂动词）不再1、学校告诫学生不能吸烟。Ourschool__________thestudents_______________.2、老师告诫我们独立完成作业。Theteachers________________ourhomeworkbyourselves.3、警察警告人们那里危险。Thepolice_________thepeople_____________dangerthere.warnsnottosmokewarnustofinishwarnedof\about6.Theymighttreatusaswenowtreatpets.他们可能会像我们现在对待宠物那样对待我们。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。treat…as…以……方式对待……/把……看做……=regard…asWetreat\regardYangLiweiasaheroofournation.Formorethan100years,people’sliveshavebeenchanged______byinventions.Forexample,theX-raymachineisawonderfulinventioninthe______field.Ithasmadeagreatcontributiontohumans'______.Withitshelp,doctorscanexaminethe______oftheirpatients’bodies.Itisusedfor__________illnesses.Butitalsohasbad______onourhealth.SotheX-raymachineshouldbeusedcarefully.greatlymedicalhealthinsidediscoveringeffectsListentothetapeandfillintheblanks.(录音)7.bemeanttodosth.应该做某事(特别是应某人的吩咐或根据职责）eg:我认为警察的职责就是保护人民。8.inthemedicalfield在医学领域field有“学科，领域，专业”等含义Ithinkthepolice___________________people.aremeanttopr...