Unit3TheworldofScienceUsinglanguage課件高中英語

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現在完成時被動語態(tài)定義:Presentperfectpassive1.表示一個被動的動作在說話前已經完成。(強調過去的動作對現在造成的影響或結果)，常與already,yet,never,recently等副詞連用。Thedoctorhasn’tbeensentforyet.還沒有派人去請醫(yī)生。Theproblemhasalreadybeensolved.問題已經被解決了。UsinglanguagePresentperfectpassive現在完成時被動語態(tài)定義:2.表示

一個被動的動作或狀態(tài)從過去開始一直持續(xù)到現在，常與for或since引導的時間狀語連用，或用于howlong引導的句子中。Financialproblemsofthecompanyhavebeendiscussedfornearlytwohours.公司的財務問題已經被討論了近兩個小時。UsinglanguagePresentperfectpassive現在完成時被動語態(tài)定義:3.用在時間或條件狀語從句中，表示將來已完成的被動的動作，即用現在完成時的被動語態(tài)代替將來完成時的被動語態(tài)。Youshouldn’twatchTVbeforeourhomeworkhasbeenfinished.在你家庭作業(yè)完成之前你不應該看電視。UsinglanguagePresentperfectpassive時間標志詞：標志詞詞義already已經yet還just剛剛；正好never從未；從來沒有sincethen自從那時起since+過去時態(tài)時間狀語自從......recently最近during/over/inthepast/last+時間段在過去的......一段時間for+時間段一段時間UsinglanguagePresentperfectpassive現在完成時被動語態(tài)基本結構：主語+have/hasbeen+v-ed(過去分詞)+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.他已經被挑選出來參加運動會。Theinkhasnotbeenremovedfromtheclothes.衣服上的墨跡還沒有去掉。UsinglanguagePresentperfectpassive現在完成時被動語態(tài)基本結構：主語+have/hasbeen+v-ed(過去分詞)+其他

(3)一般疑問句：Have/Has+主語+beenv-ed+其他?

Yes,主語+have/has.

No,主語+haven’t/hasn’t.Hasyourthroatjustbeenattackedbyavirus?你的嗓子被病毒侵襲過么？UsinglanguagePresentperfectpassive現在完成時被動語態(tài)基本結構：主語+have/hasbeen+v-ed(過去分詞)+其他

(4)特殊疑問句（問什么答什么）：特殊疑問詞+have/has+主語+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