Unit3TheWorldofScienceUsingLanguage课件高中英语

Unit3TheWorldofScienceUsingLanguage:PresentPerfectPassiveClassbegins,goodafternoonclass.Sitdownplease.Todaywearegoingtohaveagrammarlesson.LeadinWhatcanrobotsdointhevideo?Toconclude,robotshavebeendesignedtohelppeopleinmanyfields.Usinglanguage.Firstpleasewatchavideoclipandfindoutwhatcanrobotsdo?BuildcarsfitinsmallplaceanddosomedangerousthingsHospitalrobotsdeliveryrobotsHelpcleanthehouseSowecanconcludethatrobotshavebeendesignedtohelppeopleinmanyfieldsIdentifythetense1.Fillintheblanks.Inthelastdecade,robotshavebeenemployed(employ)acrossvariousindustries.Theyhavebeendesigned(design)toperformtasksmoreefficientlyandaccuratelythanhumans.Withadvancementsintechnology,theserobotshavebeenprogrammed(programme)tooperateautonomously,minimizinghumanerror.Asaresult,manyjobsthatwerepreviouslydonebypeoplearenowbeingdonebymachines.Despiteconcernsoverjobdisplacement,theintegrationofrobotshasbeenseen(see)asanecessarysteptowardsimprovingproductivity.UsinglanguageNow,pleaselookatyourpapersheet,readmoreinformationaboutrobotsandfillintheblanks.Youcandiscusswithyourpartner.YouhavetwominutesOk

let’sreadittogetherIdentifythetense2.Whatisthestructureofthe

tense?Inthelastdecade,robotshavebeenemployedacrossvariousindustries.Theyhavebeendesignedtoperformtasksmoreefficientlyandaccuratelythanhumans.Theserobotshavebeenprogrammed

tooperateautonomously,minimizinghumanerror.Theintegrationofrobotshasbeenseenasanecessarysteptowardsimprovingproductivityandefficiency.Usinglanguagehas/havebeendoneNow,pleaselookatthesefoursentences,doyoufindsomesimilarstructure?Payattentiontothewordingreen.Yestheyareinthesamestructurehashavebeendone.Welldone,Understandthetense1.Whatisthetensemadeupof?Presentperfectpassivehave/hasbeendonePresentperfectPresentpassivehave/hasdonebedoneUsinglanguageActuallywecallthistensepresentperfectpassive(现在完成时的被动语态)，Nowcanyouguesswhatisthetensemadeupof?Actuallywecandividethetenseintotwopart,firstisthehave/hasbeenispresentperfect,andbedoneisthepresentpassive.SopresentperfectpassiveisacombinationofpresentperfectandpresentpassiveUnderstandthetense2.Comparethesentencesandfinishtheboxes.UsinglanguageRobotshaveemployedacrossvariousindustries.

Robotsareemployedacrossvariousindustries.

Inthelastdecade,robotshavebeenemployedacrossvariousindustries.StateofactionVoice(语态)FocusWhenstarted?Whenended?activepassiveresultoreffectSentence1Sentence2sentence3inthepastinthepastnownowactivepassivepassiveresultoreffectresultoreffectAfterknowingtheform,let’slearnthemeaningofthetense.Pleasecomparethesentencesandfinishtheboxes.2minsgo.Anyvolunteers,insentense1whentheactionstarted?whenended?Thevoiceis

…doesitfocusonresultorresult?Sonowwenow,presentperfectpassiveistensethatstartedinthepastandendednow,voiceispassive,andfocusonresultoreffect.UnderstandthetenseUsinglanguage3.Whatadverbialoftimeareoftenappliedinthetense?1)Themachinehasn’tbeensentforyet.2)Thetechnologicalproblemhasalreadybeensolved.3)Technologicalproblemsoftherobotshavebeendiscussed

fornearlytwohours.Now,let’slearnwhenweshouldusethetensePleaselookthethreesentences,findouttheadverbialoftimeUsinglanguagePresentperfectpassiveadverbialoftime：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Herearesomecommonadverbialoftimetoapplythepresentperfectpassivetense.Readittogether.UsinglanguageRewritetheunderlinedpartsusingthepresentperfectpassive.Withinthenext80years,ourlivesmaybechangedbeyondrecognitionby3Dprinting.Ithasalreadyaffectedmanythingsinourlives,rightdowntothefoodweeat.Forinstance,somerestaurantsinLondonhaveserved3D-printedhamburgerstocustomers.

Butperhapsthemostsignificantsuccessthatpeoplehaveachievedtodateisinmedicine.

Theyhavemadehumanbodyparts,includingabeatingheart,with3Dprintingtechnology.Anditisnotjusthumanswhoarebenefiting-inBrazil,peoplehavegivenanew3D-printedshelltoaturtleinjuredinaforestfire.PracticethetenseLetspracticethetense.Pleaserewritetheunderlinedsentencesbyusingthepresentperfectpassive.FourminutesforyouLet’schecktheanswer.UsinglanguageRewritetheunderlinedpartsusingthepresentperfectpassive.PracticethetenseIthasalreadyaffectedmanythingsinourlives,rightdowntothefoodweeat.Forinstance,somerestaurantsinLondonhaveserved3D-printedhamburgerstocustomers.

Manythingsinourliveshavealreadybeenaffected.3D-printedhamburgershavebeenservedtocustomersinsomerestaurantsinLondon.UsinglanguageRewritetheunderlinedpartsusingthepresentperfectpassive.Butperhapsthemostsignificantsuccessthatpeoplehaveachievedtodateisinmedicine.

Theyhavemadehumanbodyparts,includingabeatingheart,with3Dprintingtechnology.

Butperhapsthemostsignificantsuccessthathasbeenachievedtodateisinmedicine.Humanbodyparts,includingabeatingheart,hasbeenmadewith3D-printingtechonology.PracticethetenseUsinglanguageRewritetheunderlinedpartsusingthepresentperfectpassive.Anditisnotjusthumanswhoarebenefiting-inBrazil,peoplehavegivenanew3D-printedshelltoaturtleinjuredinaforestfire.Anew3D-printedshellhasbeengiventoaturtleinjuredinaforestfire.PracticethetenseUsinglanguage

Makeaconversation:ImagineyouareDrMoore,yourpartneristhepolice.Lookatthepicturesandtellthepoliceaboutthedamageandlosstoyourlab.Usethepresentperfectpassivewhereappropriate.ApplythetenseUsefulexpressions:A:

What

can

I

do

for

you?B:

I

want

to

report

a

burglary(入室盗窃)inmylab.A:

What’s

your

name?

Your

telephone

number

andaddress,

please?B：I’mDrMoore.Mynumberis…Mylabis..A:

OK,

what's

the

matter?B:

I

just

came

back

to

find

my

lab

in

a

messPleaselookthethreepicturesMakeaconversation:ImagineyouareDrMoore,yourpartneristhep