Unit3TheworldofScienceUsinglanguage课件高中英语

Unit3TheworldofscienceUsinglanguagebyAdaUsinglanguage1.Lookatthesentencesfromthereadingpassageandanswerthequestions.PresentperfectpassiveaIguessyouhavebeenaskedaboutthetitleofyourbookbefore.bNewinventionslike3Dprintershavebeen

usedtomakereplacementheartsandboneparts.1Whathashappenedto“you”insentence(a)?Someonehasasked“you”aboutthetitleofyourbookbefore.Usinglanguage1Readabouttheinventionsfromfamousnovelsandchoosethosethathavebecomeareality.PresentperfectpassiveaIguessyouhavebeenaskedaboutthetitleofyourbookbefore.bNewinventionslike3Dprintershavebeen

usedtomakereplacementheartsandboneparts.1Whohasusednewinventionstomakereplacementheartsandbonepartsinsentence(b)?Peoplehaveused3Dprinterstomakereplacementheartsandboneparts.UsinglanguageComparethemwiththefollowingsentencesandanswerthequestions.PresentperfectpassiveaIguessyouhavebeenaskedaboutthetitleofyourbookbefore.bNewinventionslike3Dprintershavebeen

usedtomakereplacementheartsandboneparts.cIguesssomeonehasaskedyouaboutthetitleofyourbookbefore.dPeoplehaveused

newinventionslike3Dprinterstomakereplacementheartsandboneparts.UsinglanguageComparethemwiththefollowingsentencesandanswerthequestions.Presentperfectpassive3Whatisthedifferencebetweenthetwogroupsofsentences?Inthefirstgroup,thewordsinboldshowtheuseofthepassiveformwiththesubjects,whileinthesecondgroup,thewordsinboldshowtheuseoftheactiveformwiththesubjects.UsinglanguageComparethemwiththefollowingsentencesandanswerthequestions.Presentperfectpassive4Whydoestheauthorchoosetousethepassiveforminsteadoftheactiveforminthereadingpassage?Theauthorchoosestousethepassiveforminsteadoftheactiveformtoemphasiswhathasbeendone,ratherthanwhoorwhatdoestheaction.UsinglanguageNowlookformoresentenceswiththesestructuresinthereadingpassage.PresentperfectpassiveThisevening,I’llbetalkingtoDrRichardFairhurst,whosenewbookTheNewAgeofInventionhasjustbeenpublished.Inaddition,importantadvanceshavebeenmadeinmedicineandenvironmentalsciencethankstoincreasingcomputerpower.I’vealsobeentoldthatyou’reaninventoryourself.NothinglikethishasbeeninventedyetandI’dsaywe’realongwayfromaninventionlikethatatthemoment.Usinglanguage现在完成时被动语态定义:Presentperfectpassive1.表示一个被动的动作在说话前已经完成。(强调过去的动作对现在造成的影响或结果)，常与already,yet,never,recently等副词连用。Thedoctorhasn’tbeensentforyet.还没有派人去请医生。Theproblemhasalreadybeensolved.问题已经被解决了。UsinglanguagePresentperfectpassive现在完成时被动语态定义:2.表示

一个被动的动作或状态从过去开始一直持续到现在，常与for或since引导的时间状语连用，或用于howlong引导的句子中。Financialproblemsofthecompanyhavebeendiscussedfornearlytwohours.公司的财务问题已经被讨论了近两个小时。UsinglanguagePresentperfectpassive现在完成时被动语态定义:3.用在时间或条件状语从句中，表示将来已完成的被动的动作，即用现在完成时的被动语态代替将来完成时的被动语态。Youshouldn’twatchTVbeforeourhomeworkhasbeenfinished.在你家庭作业完成之前你不应该看电视。UsinglanguagePresentperfectpassive时间标志词：标志词词义already已经yet还just刚刚；正好never从未；从来没有sincethen自从那时起since+过去时态时间状语自从......recently最近during/over/inthepast/last+时间段在过去的......一段时间for+时间段一段时间UsinglanguagePresentperfectpassive现在完成时被动语态基本结构：主语+have/hasbeen+v-ed(过去分词)+其他

(1)肯定句：主+have/hasbeen+v-ed+其他.(2)否定句：主+have/hasnotbeen+v-ed+其他.Hehasbeenselectedtoparticipateinthesportsmeeting.他已经被挑选出来参加运动会。Theinkhasnotbeenremovedfromtheclothes.衣服上的墨迹还没有去掉。UsinglanguagePresentperfectpassive现在完成时被动语态基本结构：主语+have/hasbeen+v-ed(过去分词)+其他

(3)一般疑问句：Have/Has+主语+beenv-ed+其他?

Yes,主语+have/has.

No,主语+haven’t/hasn’t.Hasyourthroatjustbeenattackedbyavirus?你的嗓子被病毒侵袭过么？UsinglanguagePresentperfectpassive现在完成时被动语态基本结构：主语+have/hasbeen+v-ed(过去分词)+其他

(4)特殊疑问句（问什么答什么）：特殊疑问词+have/has+主语+beenv-ed+其他？Howlonghasthemassagebeensenttoher?这条信息发给她多久了？Usinglanguage2Rewritetheunderlinedpartsusingthepresentperfectpassive.PresentperfectpassiveWithinthenext80years,ourlivesmaybechangedbeyondrecognitionby3Dprinting.Ithasalreadyaffectedmanythingsinourlives,rightdowntothefoodweeat.Forinstance,somerestaurantsinLondonhaveserved3D-printedhamburgerstocustomers.

Butperhapsthemostsignificantsuccessthatpeoplehaveachievedtodateisinmedicine.

Theyhavemadehumanbodyparts,includingabeatingheart,with3Dprintingtechnology.Anditisnotjusthumanswhoarebenefitin-inBrazil,peoplehavegivenanew3D-printedsheetoaturtleinjuredinaforestfire.Usinglanguage2Rewritetheunderlinedpartsusingthepresentperfectpassive.PresentperfectpassiveIthasalreadyaffectedmanythingsinourlives,rightdowntothefoodweeat.Forinstance,somerestaurantsinLondonhaveserved3D-printedhamburgerstocustomers.

Manythingsinourliveshavealreadybeenaffected.3D-printedhamburgershavebeenservedtocustomersinsomerestaurantsinLondon.Usinglanguage2Rewritetheunderlinedpartsusingthepresentperfectpassive.PresentperfectpassiveButperhapsthemostsignificantsuccessthatpeoplehaveachievedtodateisinmedicine.

Theyhavemadehumanbodyparts,includingabeatingheart,with3Dprintingtechnology.

Butperhapsthemostsignificantsuccessthathasbeenachievedtodateisinmedicine.Humanbodyparts,includingabeatingheart,hasbeenmadewith3D-printingtechonology.Usinglanguage2Rewritetheunderlinedpartsusingthepresentperfectpassive.PresentperfectpassiveAnditisnotjusthumanswhoarebenefitin-inBrazil,peoplehavegivenanew3D-printedsheetoaturtleinjuredinaforestfire.Anew3D-printed