Unit3TheworldofScienceUsinglanguage課件高中英語(yǔ)

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現(xiàn)在完成時(shí)被動(dòng)語(yǔ)態(tài)定義:Presentperfectpassive1.表示一個(gè)被動(dòng)的動(dòng)作在說(shuō)話前已經(jīng)完成。(強(qiáng)調(diào)過(guò)去的動(dòng)作對(duì)現(xiàn)在造成的影響或結(jié)果)，常與already,yet,never,recently等副詞連用。Thedoctorhasn’tbeensentforyet.還沒(méi)有派人去請(qǐng)醫(yī)生。Theproblemhasalreadybeensolved.問(wèn)題已經(jīng)被解決了。UsinglanguagePresentperfectpassive現(xiàn)在完成時(shí)被動(dòng)語(yǔ)態(tài)定義:2.表示

一個(gè)被動(dòng)的動(dòng)作或狀態(tài)從過(guò)去開(kāi)始一直持續(xù)到現(xiàn)在，常與for或since引導(dǎo)的時(shí)間狀語(yǔ)連用，或用于howlong引導(dǎo)的句子中。Financialproblemsofthecompanyhavebeendiscussedfornearlytwohours.公司的財(cái)務(wù)問(wèn)題已經(jīng)被討論了近兩個(gè)小時(shí)。UsinglanguagePresentperfectpassive現(xiàn)在完成時(shí)被動(dòng)語(yǔ)態(tài)定義:3.用在時(shí)間或條件狀語(yǔ)從句中，表示將來(lái)已完成的被動(dòng)的動(dòng)作，即用現(xiàn)在完成時(shí)的被動(dòng)語(yǔ)態(tài)代替將來(lái)完成時(shí)的被動(dòng)語(yǔ)態(tài)。Youshouldn’twatchTVbeforeourhomeworkhasbeenfinished.在你家庭作業(yè)完成之前你不應(yīng)該看電視。UsinglanguagePresentperfectpassive時(shí)間標(biāo)志詞：標(biāo)志詞詞義already已經(jīng)yet還just剛剛；正好never從未；從來(lái)沒(méi)有sincethen自從那時(shí)起since+過(guò)去時(shí)態(tài)時(shí)間狀語(yǔ)自從......recently最近during/over/inthepast/last+時(shí)間段在過(guò)去的......一段時(shí)間for+時(shí)間段一段時(shí)間UsinglanguagePresentperfectpassive現(xiàn)在完成時(shí)被動(dòng)語(yǔ)態(tài)基本結(jié)構(gòu)：主語(yǔ)+have/hasbeen+v-ed(過(guò)去分詞)+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.他已經(jīng)被挑選出來(lái)參加運(yùn)動(dòng)會(huì)。Theinkhasnotbeenremovedfromtheclothes.衣服上的墨跡還沒(méi)有去掉。UsinglanguagePresentperfectpassive現(xiàn)在完成時(shí)被動(dòng)語(yǔ)態(tài)基本結(jié)構(gòu)：主語(yǔ)+have/hasbeen+v-ed(過(guò)去分詞)+其他

(3)一般疑問(wèn)句：Have/Has+主語(yǔ)+beenv-ed+其他?

Yes,主語(yǔ)+have/has.

No,主語(yǔ)+haven’t/hasn’t.Hasyourthroatjustbeenattackedbyavirus?你的嗓子被病毒侵襲過(guò)么？UsinglanguagePresentperfectpassive現(xiàn)在完成時(shí)被動(dòng)語(yǔ)態(tài)基本結(jié)構(gòu)：主語(yǔ)+have/hasbeen+v-ed(過(guò)去分詞)+其他

(4)特殊疑問(wèn)句（問(wèn)什么答什么）：特殊疑問(wèn)詞+have/has+主語(yǔ)+beenv-ed+其他？Howlonghasthemassagebeensenttoher?這條信息發(fā)給她多久了？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