新一代大学英语（第二版）视听说教程2 Unit3 Evolving technology（教师用）

Unit3Evolvingtechnology

iPrepare

Warmingup

Referenceanswers

1

Lunarexploration:

LunarexplorationdeepensourunderstandingoftheMoonandtheearlyhistory

ofthesolarsystem,whichhelpsscientistsbetterunderstandtheEarth-Moon

systemanditsinfluenceonourplanet.Thisknowledgeimprovesour

understandingofnaturalphenomenasuchastidesandthelong-termevolutionof

theEarth.Italsodrivesthedevelopmentofadvancedtechnologies,including

robotics,remotesensing,andlife-supportsystems.Manyofthesetechnologies

canalsofindpracticalapplicationsinfieldssuchasenvironmentalmonitoring,

medicalequipment,andmaterialsscience.

Machinelearning:

Machinelearningenablessystemstoperformcomplextasks-suchasimage

recognition,speechprocessing,andpredictiveanalysis-whichsupportsthe

developmentofintelligentservicesandsmartdevicesusedineverydaylife.From

abroaderperspective,machinelearningacceleratesscientificresearchand

problem-solving.Ithelpspeopleprocesslargedatasetsanddiscoverpatternsthat

humansmaymissinfieldssuchasmedicine,climatescience,andastronomy,

leadingtonewdiscoveriesandsolutionstoglobalchallenges.

Self-drivingvehicles:

Byusingsensorsandintelligentsystems,self-drivingvehiclescanminimize

humanoperationalerrors,reducedrivingfatigue,andimprovecommutingsafety.

Withoptimizeddrivingpatternsandcoordinatedtrafficmanagement,theycan

reducetrafficcongestion,lowerfuelconsumption,anddecreasecarbonemissions.

Inaddition,self-drivingcarscanincreasemobilityformanypeople,including

elderlypeople,individualswithdisabilities,andothersunabletodrive,offering

greaterindependenceandsocialinclusion.

Geneediting:

Geneeditingenablesthedevelopmentofcropsthataremorenutritious,

drought-resistant,andresilienttopestsanddiseases,helpingimproveglobalfood

securityandagriculturesustainability.Geneeditinginmedicinemayallow

scientiststotreatorevencuregeneticdiseases,developmoretargetedtherapies,

andimprovepublichealthinthelongterm.

5Gnetworks:

Withultra-fastandlowlatencycommunication,5Gnetworksenablereal-time

applicationssuchasremotesurgery.Italsosupportsthedevelopmentofsmart

citiesbyconnectingeverythingtogether,includingtransportationsystems,energy

networks,andpublicservices.

GenerativeAI:

GenerativeAInotonlyenablesindividualstocreatecontentsuchastext,images,

music,andvideosmoreeasily,butalsoenhancesefficiencybyautomating

routinetasks,assistingwithresearchandanalysis,andsupporting

decision-making.

Commercialspaceflight&Reusablerockets:

Commercialspaceflightandreusablerocketsdramaticallyreducethecostof

accessingspace,makingsatellitedeployment,scientificresearch,and

space-basedservicesmoreaccessible.Thesetechnologiesalsoopenthedoorto

spacetourismandlong-termhumanexplorationofspace,whilefosteringa

broader“planetaryperspective,,thatencouragesglobalcooperationandgreater

awarenessofissuessuchasclimatechangeandtheEarth'sfragileenvironment.

iExplore1:Listeningandspeaking

Conversation

Scripts

Lily:Look,Sam!Thatrobotisbringingourfood.Thafssocool!

Sam:Yeah,manyrestaurantsareusingrobotsfordeliverynow.It\fastand

convenient.

Lily:Exactly.Tvealsoseendronesdeliveringpackagesinsomeareas.Doyou

thinkunmanneddeliverywillbecomemorecommon?

Sam:Definitely.It'snotjustfoodandpackages-imaginedeliveringmedicines

andemergencysuppliestohospitalsorremotevillages.

2

Lily:Thatwouldsavealotoftime.Butwhataboutbadweather?Canrobotsor

droneshandleit?

Sam:Goodquestion.Heavyrainorstrongwindsmightbeachallenge,but

technologyisimproving.Maybefuturedroneswillbesmarterandstronger.

Lily:Andwhatiftherobotcomesacrossanobstacle,likeaparkedcar?

Sam:TheyusesensorsandAItoavoidobstacles.Someevenhavecamerasto

recognizetrafficlights.

Lily:That'simpressive!So,doyouthinkonedayalldeliverieswillbe

unmanned?

Sam:Whilemanydeliveriescouldbecomeunmanned,humansmightstillhave

todealwithspecialcases.Thefuturewillbemoreautomatedforsure.

Lily:Can'twaittoseethat!Let'sti*ythefood—hopefully,therobotdidn,tshake

ittoomuch!

Sam:(Laughs)Right!

Questions

1Whatisthemaintopicofthediscussion?

2Accordingtotheman,wherecouldunmanneddeliverybeusedbesides

restaurants?

3Whatchallengeforunmanneddeliveryismentionedintheconversation?

4Howcandeliveryrobotsavoidobstaclesaccordingtotheconversation?

Listeningandunderstanding

1

Answers

1D2C3A4B

2

Answers

1convenient

2smarter

3trafficlights

4specialcases

3

Role-play

Referenceanswers

StudentA:Hi!Ijustheardthatthecafewhereyouworkmightstartusingrobots

forfooddelivery.Isthattrue?

StudentB:Yes,it'strue.

StudentA:Howdoyoufeelaboutit?

StudentB:Ithinkitcouldbeapositivechange.Forusworkers,itwouldmean

lesstimespentrunningordersaround.Wecouldfocusonpreparingthefood

andmakingsureeverythingisfreshanddelicious.Besides,robotsare

tireless.Theywon'tslowdownduetofatigue.

StudentA:Iseeyourpointaboutefficiency,andI'masupporteroftechnology.

Buthonestly,theideaworriesmeabit.Itmaymakeourcampusfeelless

friendly.Arobotcan'tofferasmileorrememberaregularcustomer'sname

likeapersoncan.

StudentB:That'safairconcern.However,thegoalisn'ttoreplacehuman

contactentirely.You'dstillinteractwithusatthecounter.Therobotwould

onlyhandlethefinalstep-carryingtheordertoyourtable.

StudentA:Thatsoundsreasonable.ButIhaveanotherworry:ifyouarebusy

preparingfoodanddonotdirectlydeliverit,howwillyounoticeifa

customerneedshelpattheirtable?Forexample,ifIreceivemyorderand

thenrealizeIneedanextranapkinoraspoon?

StudentB:Thafsagoodpoint.We'llkeepaneyeonthediningareaand

respondtoanyrequestsrightaway.

StudentA:OK,Igetit.Ifitmeansbetterfood,lessburdenonthestaff,andthe

preservationofinterpersonalcommunication,Tdbewillingtogiveitatry.

StudentB:Great!Tmreallygladtohearthat.Wevalueyoursupportbecause

we'reaimingforabalancethatbenefitseveryone.Butletmeknowifthere's

anyproblem!

4

Teachingtips

Step1

Showapictureorshortvideoofadeliveryrobotandaskstudentstobriefly

discusswithapartnerwhatbenefitsorproblemsitmightbringtoacampuscafe.

Step2

Introduceseveralusefulexpressionsfordiscussingadvantagesandconcerns,and

invitestudentstoaddtheirownideas.

Step3

AskstudentstomakeaconversationwiththeAIiu(or.Encouragethemioapply

theexpressionstheyhavelearnedbeforeandacquirenewexpressionsorgain

insightsfromtheAItutor.

Step4

Havestudentsperformtherole-playinpairs.Inviteoneortwopairstosharetheir

conversationinclass.

Passage

Scripts

Chinahasbecomeaglobalpioneerinnewenergyvehicle(NEV)production,

accountingforoverhalfoftheworld'stotal.Whilemostaresolddomestically,

China'sNEVsaregaininginternationalrecognitionfbrtheiradvanced

technologyandcompetitiveprices.

NEVsrequiredifferentcoretechnologiesfromtraditionalcars,including

batteries,motors,andelectroniccontrolsystems.Thankstoearlyinvestmentin

thesekeytechnologies,Chinesecompanieshavegainedadvantagesincost

controlandqualityimprovement.ThishasprovidedChina'sautomakerswithan

opportunitytocatchupwithandsurpasstheirglobalcompetitors.

China'sNEVsuccessisalsodrivenbystrongconsumerdemandandgovernment

support.Thecountryhasbuiltavastnetworkofchargingstations,makingit

moreconvenientforNEVownerstochargetheirvehicles.Additionally,growing

publicinterestingreenandsmarttechnologieshasfurtherboostedsales.In2025,

Chinasoldover16millionnewNEVs.Expertsbelievethatthereisstilla

significantpotentialforsalesgrowth.

China'slarge-scaleNEVproductionhassignificantlyreducedcosts.Thepriceof

NEVsisexpectedtodecreaseinthefuture,makingthemmoreaffordablefor

buyersaroundtheworld.

5

Withitstechnologicaladvancementsandahugemarket,Chinaisbringing

significantchangestoglobaltransportation.

Questions

1WhatisthemainfactorforthepopularityofChina?sNEVsinthe

internationalmarket?

2WhatarethecoretechnologiesthatNEVsrequire?

3HowmanynewNEVsweresoldinChinain2025?

4Accordingtothepassage,whathasreducedtheproductioncostofChina's

NEVs?

Listeningandunderstanding

Answers

1D2B3B4A

Onlineexercise

2Listentothepassageagainandfillintheblankswithwhatyou

hear.

1EarlyinvestmentinkeytechnologieshasprovidedChina's

automakerswithanopportunitytocatchupwithandsurpasstheir

2Thecountryhasbuiltavast__________ofchargingstations,making

itmoreconvenientforNEVowners.

3Growingpublicinterestin__________andsmarttechnologieshas

furtherboostedsales.

4ThepriceofNEVsisexpectedtodecreaseinthefuture,makingthem

more_______forbuyers.

Answers

1globalcompetitors

2network

3green

4affordable

6

Thinkingandspeaking

Referenceanswers

1Frommypersonalexperience,themainadvantagesofNEVsaretheirlow

runningcostsandenvironmentalbenefits.Theyhavemadelifebetterby

reducingairpollutionincitiesandofferingamuchquieter,smootherride

comparedtotraditionalcars.

2Beyondtransportation,newenergytechnologiescanbewidelyusedinhomes

andindustries.Forexample,inruralareas,solarpanelscanpowerhousehold

appliancesandchargehomeenergystoragesystems,allowingfamiliestorely

moreoncleanenergy.Inindustry,renewableenergysourcessuchassolarand

windpowercanprovideelectricityforfactoriesandlargefacilities.New

energytechnologiescanalsotransformbuildings,cities,andagricultureand

watersystems.Thisshiftcouldsignificantlylowerourdailyelectricitybills

andhelpprotecttheenvironmentbyreducingcarbonemissions.

Newsreports

Newsreport1

Scripts

Chinahasbuilttheworld'slargest5Gnetworkinjustfiveyears,withover4

millionbasestationsinstalledacrossthecountry.Thispowerfulnetworknow

provides5GcoverageforallurbanareasandevenreachesthesummitofMount

Qomolangma,thehighestplaceonEarth.

Theeconomicimpacthasbeensignificant.5Gtechnologyhasdirectly

contributedabout800billiondollarstoChina'seconomyandcreatedmillionsof

newjobs.Ithasacceleratedgrowthinkeysectorslikesmartmanufacturingand

onlineeducation,transforminghowbusinessesoperate.

Currently,thereareover1()(),()()()examplesof5Gapplicationsacrossdifferent

industries.Thegovernmentaimstoestablish10,000smartfactoriesusing5Gby

2027,helpingmanufacturersimproveefficiencyandreducecosts.

Expertssay5GwillcontinuetochangehowpeopleliveandworkinChina,

makingthingsfasterandmoreconnectedthaneverbefore.Recently,Chinahas

startedphasetwoofits6Gtechnologytrials.Thisisanimportantsteptoward

7

futuredevelopment.

Questions

1Whatisthemaintopicofthenewsreport?

2Howhas5GtechnologyhelpedChina'seconomy?

3HowmanysmartfactoriesdoesChinaplantobuildby2027?

Answers

1A2D3A

Onlineexercise

Newsreport2

Wordsandexpressions

frustrating/TrAiStreitig/a.令人懊恼的；令人沮丧的

engage/in'geidyvi.(-with)与…建立密切关系

Technologyisadvancingrapidlyandbringinggreatconveniencetohuman

life.Howisitlikelytoinfluencethelivesofolderpeople?NowlistentoNews

report2andchoosethebestanswertoeachofthequestionsyouhear.

1

A.Usingdigitaldevicescausesmemorylossinlateryears.

B.Socialactivitieshavegreaterbenefitsthantechnologyuse.

C.Olderdigitaldeviceuserstendtogetlessphysicalexercise.

D.Olderdigitaldeviceusershadalowerriskofcognitivedecline.

2

A.Itischallengingandexciting.

B.Olderusersneedaperiodofadaptation.

C.Learningnewtechnologiesimprovesmemory.

D.Itprovidesmentalexercisetokeepthebrainactive.

3

A.Followingtheguidanceofexperts.

B.StartingwiththehelpofAIassistants.

C.Startingwithsimpleuseslikesharingphotos.

D.Usingdigitaldevicestoplayeducationalgames.

8

Scripts

Anewstudyshowsthatusingdigitaltechnologymayhelpprotectcognitive

healthaspeopleage.Researchersanalyzeddatafrom57studiesinvolvingover

400,()0()adultswithanaverageageof69.Theyfoundthatthosewhouseddigital

technologyhada58percentlowerriskofcognitivedeclinecomparedtothose

whodidn't.

Manypeopleworrythatusingphonesandcomputersmighthurtourbrains,but

thestudyfoundthatithasmultiplebenefitsforolderadults."Technology

actuallychallengesyourbrainingoodways,“explainedoneresearcher.Learning

tousenewdevicesmaybefrustratingatfirst,butthismentalexercisecouldhelp

keepthebrainactive.

Expertssuggestthatfamilieshelpolderrelativesstartwithsimpletechnology

uses,likesharingphotosorsettingmedicationreminders.LtThekeyistostart

witheasytasksandbepatient,theresearchersaid.Whilefurtherresearchis

needed,theevidenceclearlyshowsthatstayingengagedwithtechnologycanbe

aneffectivewaytomaintainbrainhealthinlateryears.

Forolderadultswhohaveavoidedtechnology,itmightbeworthtryingsome

basicfunctions.Theresearchindicatesthatevensmallstepsintothedigitalworld

couldmakeabigdifferenceinkeepingmindssharp.

Questions

1Whatisthemainfindingofthenewstudy?

2Whatdidresearchersfindabouttheolderadults'experienceoflearningnew

technologies?

3Whatistheexperts9recommendedapproachtointroducingtechnologyto

olderadults?

Answers

1D2D3C

Additionalactivity

Atechnewsbriefing

Workinpairs.Chooseonetechnologicaldevelopmentthatyouhaveheardbefore

orareinterestedin.Prepareashorttechnologynewsupdateandpresentittothe

class.Yourreportmayincludewhatthetechnologyis,whatitcando,andhowit

mayinfluencepeople'slives.

9

Referenceanswers

Goodevening,andwelcometoourtechnologyupdate.Todaywe'relookingat

brain-computerinterfaces,atechnologythatallowsdirectcommunication

betweenthehumanbrainandcomputers.Byusingsensorstodetectbrainsignals,

thesesystemscantranslateaperson'sthoughtsintocommandsfordigital

devices.

Thistechnologyhasgreatpotentialinthemedicalfield.Forexample,people

withparalysismaybeabletocontrolacomputercursor,typemessages,or

operateawheelchairusingonlytheirthoughts.Researchersarealsoexploring

howbrain-computerinterfacesmighthelprestoremovementorcommunication

forpatientswithseriousneurologicalconditions.Althoughthetechnologyisstill

developing,manyscientistsbelieveitcouldgreatlyimprovethequalityoflifefor

peoplewithdisabilities.

iExplore2:Viewingandspeaking

Scripts

Takingagoodpicturerequiresbothskillandtherightcamera.Andifyouare

giventhechancetophotographsomethingthatisworld-famous,youwantto

makesureyoudoitright.

JohnTaylorwasinvitedtotakeapictureofthis,theMonaLisa-anopportunity

thatonlycomesevery50years.ThemajorconcernwasthesafetyoftheMona

Lisafirst.Onceherprotectivecoverwasoff,theFrenchwantedtostudyher.

JohnwaspartofaCanadianteamwhotraveledtoParis.WhentheMonaLisa

paintingwasactuallywheeledintotheroomwithallthatsecurity,hesaidhejust

stoppedforamomentandlooked.Justtobeafewinchesfromthepaintingwas

somethingthathethoughtnobodywouldforget.(Itwas)anexcitingmoment,but

theteamhadajobtodo.Theywereallunderalotofpressure.Andtheyonlyhad

ashorttimetogetthejobdone.Theyhadtwonightsforthewholeoperations

(operation).Ittookthemaboutfivehoursthefirstnighttoscanthefrontofthe

painting,aboutsixorsevenhoursthesecondnighttoscanthesidesandtheback.

Theybroughtwiththemtheultimatephotographictechnology.Itcreatesan

imagebyscanningthepaintingwithalaser.Thelaserbeamisaboutthesizeofa

fractionofthehumanhair.Itsendsback10,000pointsofinformationevery

secondandrecordsboththecolorandtheshapeofthepainting.Thescanof(the)

front,back,andsidescancreatea3Dimage.

1()

Thentheteamwasgiventhetaskofcreatingthesoftwaretoturnthescanned

informationintoapicture.Theydidn'tknowhowtointerpretalltheinformation

fromthescanyet,butwhattheywereabletoprocesswasquiteremarkable.They

madeaboutthehighestresolutiondetailedimageoftheMonaLisathathasever

beencreated.Andit'snotjustaprettypicture.Itshedsnewlightontheworkof

LeonardodaVinciandhispaintingtechniqueknownasSfumato.It'sItalianfor

“smoking."ItwasthoughtforyearsthatLeonardobuiltupthetheoretical

techniquebyaddingverythin,subtlelayersofpaint.The3Dimageconfirmed

thistheory.Inatypicalpainting,whatweseearebrushstrokedetailsbecausethe

artisthasusedthepaintbrush.Butifwetakealookatthisimageofthemouth,

thefamoussmile,wedon'tseeanysignofbrushstrokedetail.Whynot?Because

Leonardohassuchadelicatetouchwithhisbrushandappliesthepaintinsuch

finelayers.

Theteamwasalsoabletocheckonthepainting'scondition.Therehasbeenvery

littledamageoccurredtothispainting,andtherehasbeenverylittleconservation

workdone;andasaresult,about98percentofthepainting,asweseeittoday,is

bythehandofLeonardo.

Theteamexpectstolearnmoreaboutthepaintinginthefuture.Andastheykeep

doingtheresearch,theyaregoingtofindmorewaystointerpretthedata.Butas

goodasthispictureis,Johnisthefirsttoadmitthereisnothingliketherealthing.

HesaiditwillneverreplacetheexperienceofgoingtoseetheMonaLisaorany

otherworksofart.Whathewilldoistogiveeveryoneachancetoappreciatethis

famouspaintingjustalittlebitmore.

Notes

LeonardodaVinci(1452-1519)wasafamousItalianartistoftheRenaissance

period.HeisbestknownforhisgreatpaintingslikeMonaLisaandtheLast

Supper.Apartfrombeingapainter,healsoachievedmanyaccomplishmentsas

anengineer,architect,andsoon.Hisworkshowsadeepcuriosityaboutthe

world,combiningcreativityandscienceinauniqueway.

Viewingandunderstanding

Answers

1)thefront

2)thesidesandtheback

3)thehumanhair

4)brushstroke

11

5)98%/98percent

6)thepainting

7)everyone

2

Answers

1A2D3B

Teachingtips

Thethirdmultiplechoicequestionisdesignedtodevelopstudents,abilitytouse

contextualcluestoinferthemeaningofunfamiliarwordsinlistening

comprehension(inthiscase,theword“rcsolutiorT).Fordetails,refertothe

ListeningskillsintheStudent'sBookandthemicrocourseonUcampus.

TalkingaboutChina

Referenceanswers

OnemoderntechnologyusedinculturalpreservationinChinais3Ddigital

reconstruction.Forexample,attheMogaoCavesinDunhuang,expertshave

usedthistechnologytoprocessandstore2Dand3Ddata,creatinghighly

detaileddigitalmodelsoftheancientwallpaintingsandstatues.

Akeyproblemthistechnologysolvesispermanentdamagefromexposure.These

artworksarcsensitivetolight,humidity,andhumantouch.Bycreatingexact

digitalcopies,researcherscanstudyandsharetheartwithoutriskingdamageto

theoriginals.Italsoallowsthepublictotakevirtualtoursfromanywhereinthe

world,makingthisculturalheritagemoreaccessibletoeveryone.

iProduce

Teachingtips

Step1Clarifythediscussionformat

Studentsoftentreatgroupdiscussionsasaseriesofpreparedspeeches.Teachers

shouldclearlyexplainthedifferencebetweenaformalpresentationandan

informaldiscussion,emphasizingtheneedfornaturalinteractionand

spontaneousreplies.Providingusefulexpressions,suchas“Iagree,andalso...”

or”[Name],what'syourview?”，canhelpstudentsinteractmorenaturally.

Step2Encouragewell-prepareddiscussion

Remindstudenlslogatherideasfromdifferenlsourcesandconsidermultiple

12

perspectivesbeforethediscussion.Teachersmayalsoremindthemtofollowthe

tipsintheStudent'sBooksothatthediscussionremainsfocusedandmoves

forwardsmoothly.

Step3Encouragebalancedparticipation

Whenstudentsprepareforthediscussion,teachersmayencouragethemto

involveallgroupmembersandrespondtooneanother\ideas,ratherthan

speakingonebyone.Circulatingaroundtheclassroomandofferingbriefsupport

canhelpmaintaintheflowofdiscussion.

Step4Invitebriefpeerfeedback

Afteragroupfinishes,teachersmayinviteafewstudentsfromtheaudienceto

brieflycommentonthediscussion,suchassharingoneideatheyfound

interestingoraskingafbllow-upquestion.Thisturnsthediscussionintoa

startingpointforwiderclassdiscussionanddeeperlearning.

Referenceanswers

StudentA:OK,everyone.Lefsstart.Todaywe'lldiscussonefuturetechnology

fromsci-fimoviesthatmaycometrue.Tmreallyinterestedinartificial

gravity.Insomespaceexplorationmovies,spinningcreatesaforcelike

gravity.Whatdoyouallthink-coulditbecomerealoneday?

StudentB:Ithinkit'spossibleinthefarfuture.Scientistshaveconceived

severalmethodsforcreatingartificialgravity.However,allofthemhave

veryhighrequirementsintermsoftechnology,construction,andcost.

StudentC:That'strue,thecostisabigproblem.Butimaginethebenefits!Long

spacejourneyswouldbemuchhealthier.Astronautswouldn'tlosemuscle

masssoquickly.ItcouldmakelivingonMarsbasespossible.SoIbelieve

thatforfutureexploration,peoplemustmakeitareality.

StudentD:Iagreewiththehealthpoint.Andlet'sthinkbigger.Ifwehad

reliableartificialgravityonaspaceship,wecouldcarryequipmentand

peoplemorecomfortably.Itmightcompletelychangehowwedesignspace

missions.

StudentE:Youallfocusonspace,whichmakessense.Howaboutits

applicationonEarth?Forexample,astronautscanexperienceandadaptto

thegravitationalconditionsinspaceoronotherplanetsinadvance.Whatdo

youthink,Ben?

13

StudentB:Thafsaninterestingidea.Ihadn'tthoughtaboutit.Youmeana

smaller-scaleandcontrollableartificialgravity?Itcouldalsobeusedin

specialtherapyortrainingcenters.Butthetechnologywouldbedifferent,I

guess.

StudentA:So,weseemtoagreethemainandprimarypuiposeisforspace

travelandhealth.David,youmentionedmissiondesign.Howspecifically

doyouthinkitwouldchange?

StudentD:Well,rightnow,everythinginaspacecraftmustbetieddown.With

artificialgravity,youcouldhavenormaltables,chairs,evenshowers.It

wouldfeelmorelikeahome,whichisimportantforthementalhealthof

astronautsonverylongtrips.

StudentC:Thatconnectsbacktothehealthbenefits—bothphysicallyand

mentally.Itsolvesseveralbigproblemsatonce.AsBensaid,wealready

haveseveraldirections.Theproblemisthatweneedtoconductresearch

constantlyinordertoachievethefinalbreakthrough.

StudentE:Right.Aslongaswecontinuetomakeprogressandovercome

challengesinareassuchasscienceandtechnology,manufacturingcapability,

andcostcontrol,Ibelieveit'snotaquestionof"if'but"when"we'H

developit.

StudentA:Greatdiscussion.Let'ssummarize.Webelieveartificialgravityis

scientificallypossibleandwouldbeahugestepforspaceexploration,

mainlyforastronauts,healthandmissiondesign.Thebiggestbarriersare

technicallimitations,engineeringchallenges,andhighcost.Doesthatsound

righttoeveryone?

StudentB,C,D&E:Yes.

14

Suggestionsforevaluation

ChecklistScore(1-5)

Thetechnologyisclearlyandaccuratelydescribed.

Ideasaresupportedwithlogicalreasoningorsimple

examples.

Thediscussionconcludeswithaclearsummaryorinteresting

insight.

Thediscussionflowsnaturally,withactivelistening,

follow-upquestions,andresponsestoothers.

Allspeakerscontributefairlyandsupportthediscussion.

Thespeakersexpresstheirideasclearlywithaccurate

language,appropriatepace,andeffectivenon-verbal

communication.

15

Onlineexercise

Pronunciation

Pronunciationskills

Theintonationofwh-questions

Wh-questionsarequestionsthatbeginwiththewords"whoJ"what,“

“whereJ"whenJ“why,"and“how."Theytypicallyhaveafalling

intonation.However,whenaspeakerasksforrepetitionorclarificationof

previouslyknowninformation,arisingintonationcanbeused.Aspeaker

whowantstoshowemotionslikesurprise,shock,ordisbeliefcanalsousea

risingintonation.

1Readthefollowingsentencesandpayattentiontotheintonation.

1Whataboutbadweather?

2Robin,youlooksotired.What'shappened?

3Whatiftherobo