新標(biāo)準(zhǔn)大學(xué)英語(yǔ)（第三版）視聽說(shuō)教程2（智慧版） 教案 U6 Science empowers

PAGEPAGE11內(nèi)容簡(jiǎn)介內(nèi)容簡(jiǎn)介思政要點(diǎn)InsideviewConversation1Conversation2TheInsideviewisaboutJanet’scomputerbreakingdownandhowitisfixed.C1featuresarelaxingtimeontheriverbankatOxford,buttheatmosphereisspoiledwhenJanetencountersacomputerproblem.C2continuesthestorywithconfuseddreamsbutahappyending.盡可能提前預(yù)防問(wèn)題的出現(xiàn)。Outsideview(online)Thisvideoisaboutthescientificexplanationsforastrangeyetcommonexperience–déjàvu.的科學(xué)解釋。Listening culturesNewsreportPassageThenewsreporttalksaboutthehearttransplantationfromageneticallymodifiedheart.Thepassageisabouthowscientists,inanefforttofeedthegrowingpopulation,areusinggeneticstoproduceplantsthatcanovercomeenvironmentalandbiologicallimitations.了解科學(xué)家和研究人員在促進(jìn)人類健康，創(chuàng)造更多有利于人類生存的資源方面所做的努力和取得的成就。TalkingaboutChinaThissectiontalksabouttheremarkableachievementsChinahasmadeinthedevelopmentofhigh-speedrail.了解中國(guó)在高鐵建設(shè)方面的行動(dòng)力和創(chuàng)新能力。Expansionandreview(online)PronunciationExtendedlisteningUnittestUnitfileThePronunciationsectionexplainshowstressvariationschangewordclassandhowspeechratevariationsproduceconnectedspeech.Extendedlisteningincludesfourmaterialsonscientificdiscoveriesandtechnologicaladvancementsthatcanbenefitmankind.TheUnittestsectionprovidesunittesting,enablingstage-by-stageself-evaluationandself-testing認(rèn)識(shí)科技進(jìn)步對(duì)改善人類andensuringanimmediatecheckonlearningresults.TheUnitfilesectionhelpsSsreviewwhatthey’velearnedandcheckwhatneedstobeimproved.InsideviewReferenceanswersInthefirstpicture,thethreefriendsareenjoyingthesunshineontheriverbank.JanetandKatearelikelydiscussingthefamous19th-centurychildren’sAliceinwhichissetinOxford.Inthesecondpicture,Janetlookspanicked.Theothertwofriendsarebothlookingathercomputerscreenwithconcern.PerhapstheyaretalkingaboutJanet’scomputerbeingdown.Conversation1ScriptsJanet: Whatareyoureading,Kate?Kate: AliceinbyLewisCarroll.Doyouknowit?Janet: I’veheardofit,yes,butI’veneverreadit.a19th-centurychildren’sisn’tit?Kate:That’sright.It’sveryfamous.It’ssetinOxford.Itstartswiththisyounggirlsittingonariverbank.Theinterestingthingis,theauthor,LewisCarroll,hewasanOxfordprofessorandheusedtohaveteawiththegirl’sfamilyonthisriverbank.Janet: Oh,fascinating!I’llputitintomyKate: Isthatwhatyou’rewriting?Iknowyou’vebeenkeepingadiaryalltheJanet:It’sbeenagreatyear.I’vehadsuchagoodtime–soluckytohaveMarkandKateasfriends.FeelI’vebeendoingwellwithwork.Muchhappieraboutaskingquestionsintutorials.Janet: Mygonedark.Mark:You’reusingthebattery,remember.It’srunout,obviously.Janet: Itcan’tbethestillcharged.Ohno,stillblack.OhIhopenothingserious.Ihaven’tbackedanythinguprecently.Kate: notlikeyou,Janet.Janet: IbutIlostmymemorystick.Ireallyshouldhavebackedthingsup.Howstupidofmenottodothat!SupposingI’velosteverything!Mark:Letmetakealook.Thepowerisstillon.Andalsotheoperatingsystemstillseemstobeworking…Ithinkithastobethegraphicscard…Butmaybethat’snottheproblem…Janet: IfonlyI’dbackedthingsup!Kate: Kate: Relax,Janet!takeittothecomputershopthisafternoon.I’msureit’llbeOK.Janet: Ihopeso.LanguageandcultureAliceinisawidelybelovedBritishchildren’sbookbyLewisCarroll.IntheayounggirlnamedAlicefallsdownarabbitholeintoafantasticworldpopulatedbystrange,talkingcreatureswithpeculiarcharacters.Thestoryisknownforitsplayfuluseoflanguage,cleverwordplay,andabsurdscenarios,whichhaveattractedreadersofallagesforgenerations.ThebookhasbecomeaniconicworkofEnglishliterature,cherishedforitsimaginationandcreativity.ThereareboathousesinOxfordwhereyoucanhirepunts(Apuntisanopenflat-bottomedboatwithsquareends,propelledbyapole)foratripdownoneofOxford’stworivers(theThamesandtheCherwell),acommonwayofpassingasummer’sdayinthecity.Agraphicscard,alsoknownasgraphicsprocessingunit(GPU),isapieceofcomputerhardwarewhichinterpretssignalsinordertocreatevisualimagesonacomputerscreen.1Referenceanswers1 ×(JanethasonlyheardofthebookAliceinWonderland,butshehasneverreadit.)2 √×(JanetfeelsshehadagoodtimeatOxford.)×(Thecomputerisstillcharged.)5 √6 √2TeachingsuggestionsAmongthemultiplepurposesofcommunication,expressingemotionsisanimportantoneinstrengtheningthebondbetweenspeakers.Ifapersoncanbeemotionallyaware,thatis,noticingtheemotionsofotherpeople,theycancommunicatebetterandrespondinamoresupportiveForexample,phraseslike“that’sfascinating”and“Oh,dear”showasenseofengagementandconcern,respectively.Commentslikenotlikeyou”and“Relax”usuallysuggestthatsomethingunexpectedandundesirablehashappened.TshouldalsoremindSsthatwhileitisOKtosay“Howstupidofme(not)todothat!”,itisnotalrighttosay“Howstupidofyou(not)todothat!”,becauseself-reprimandingisawaytoshowremorse,butcriticizingothersdoesnothelpinsolvingproblems.ReferenceanswersJanetfindsitfascinatingthattheauthorofAliceinwasanOxfordprofessorandusedtohaveteawithfamilyonthesameriverbank.Thescreenofcomputerhasgonedark.Shehopesshehasn’tlostanythingonhercomputer,asshehasn’tbackedthingsuprecently.KateisexpressingsurprisethatJanetdidn’tbackuphercomputerfilesassheusuallydoes.Janetregretsthatsheneglectedtobackthingsup.KatetriestocomfortJanet,tellinghernottoworryaboutthingsthatareundetermined.Conversation2ScriptsJanet: meaboutAliceinKate: Itellyouwhat,I’llreadittoyou.…Kate:Alicewasbeginningtogetverytiredofsittingbyhersisteronthebankandhavingnothingtodo.Onceortwice,shepeepedintothebookhersisterwasreading,butithadnopicturesorconversationsinit.“Andwhatistheuseofabook,”thoughtAlice,“withoutpicturesorconversation?”Soshewasconsideringinherownmind(aswellasshecould,forthehotdaymadeherfeelverysleepyandstupid)…Janet: Kate,Mark,whereareyougoing?gotmylaptop!Kate: allright,Janet.takingittothecomputershop.bebacksoon.Mark:It’snotlikeJanettoforgettobackupherwork.Kate: Sheshouldhavebeenmorecareful.Janet: Itwasstupidofme,Iknow!Stupid,stupid!…Janet: Oh!Itwasadream!Whatarelief!Kate: weretalkinginyoursleep.Janet: WhatwasIsaying?Kate: “Stupid,stupid.”Mark:I’vesortedoutyourcomputer.Janet: Haveyou?Oh,thankgoodness!Whatwastheproblem?Mark:Itwasthegraphicscard,asIpredicted.Janet: Isthatwhatitwas!I’msorelieved!Thanks,Mark.Kate: great,isn’the?Janet: Soareyou,Kate.Kate: suchagoodfriend.3Answers:1B2B3A4TeachingsuggestionsInthisactivity,Tcanfocusonexpressionsshowingrelief,usedwhenonecanfinallyeaseupaftersomethingunpleasanthasnothappenedorhasended.AskSsiftheycanthinkofanyotherphrasesexpressingreliefinadditionto“Whatarelief,”“Thankgoodness,”and“I’msorelieved.”Possibleanswersarerelief...,”“Thenewscameasagreatrelief...,”anda(huge)weightoffmymind.”ReferenceanswersItellyouwhatbebacksoonshouldhavebeenWhatareliefthankgoodnessI’msorelievedEverydayEnglishLanguagenotesThat’sfascinating!Thephraseiscommonlyusedinconversationtoexpressgenuineinterestorcuriosityinresponsetowhatsomeonehassaidorpresented.obviously“Obviously”isawordusedinconversationtoexpressthatsomethingisapparentorevident.Itassumesthatnofurtherexplanationisneededtosupporttheclaim.Ohdear!Thisisacommonexpressionusedtoshowconcernorsympathyforsomeonewhoissufferingorexperiencingdifficulties.Theexpressioncanalsobeusedwhenonereactstoanunexpectedmistakeorsurprisingnews.ItellyouwhatThisisaconversationalphraseusedtointroduceasuggestion,offeranopinion,makeaproposal,oremphasizeapointinacasualandinformalmanner.Whatarelief!Thisexpressionshowsthespeakerfeelshappybecausesomethingunpleasantorworrisomehasnothappenedorisnolongerhappening.asIpredictedThisexpressionisusedinconversationtoindicatethatasituationhasunfoldedinlinewithone’searlierexpectationsorforecasts.5ReferenceanswersobviouslyOhdearThat’sfascinating4Whatarelief5asIpredicted6ItellyouwhatActitoutTeachingsuggestionsTcanleadadiscussionwithSsonthefollowingelementsofthescenario:therelationshipbetweenthetwospeakers(aChinesestudentandaninternationalstudent),whathappenedtotheinternationalstudent(hercomputerbreakingdown),andtheresult(theproblembeingsolvedbytheeffortsofthetwostudents).TcanhelpSsthinkaboutthefollowingquestions:Whatkindofproblemsmightoccurwithacomputer?Howdotheyfeelwhenthecomputerbreaksdown?Whatwouldtheydowhenthecomputerbreaksdown?Howdotheyfeelwhenthecomputerisfixed?Finally,TcanaskSstopracticetheconversationinpairsandactitout.6SampleconversationImagineaninternationalstudent(A)inyourclassfindsthathercomputerisn’tworkingproperlyandasksyou(B)forhelp.A:Ohdear,whatshouldIdo?B:Whathappened?IsthereanythingIcanhelpwith?A:Well,mycomputerisn’tworkingproperly.Ican’tseemtogetittostartup;thescreenisallblack.What’sworse,Ididn’tsavewhatIhadwritten.B:Ohdear,Ihopeit’snothingserious.Let’stakealook.Haveyounoticedanyerrormessagesorstrangesoundscomingfromthecomputer?A:Ididn’tnoticeanythinglikethat.Iwasansweringaphonecalljustnow.IfonlyI’dsavedmywork.B:Hmm…usingtheremember.runout,obviously.Haveyoutriedpluggingitin?A:Oh,goodness,Icompletelyforgotaboutthat.Letmetry.[Plugsinthepowercord]Ah,it’sstartingupnow.B:That’sarelief!Sometimesit’sthesimplestthing.A:Thankgoodness!Iwasworrieditmightbesomethingmoreserious.Ireallyshouldhavesavedmyfilesregularlyandpluggedinthepowerpromptly.B:Don’tworry.Thesethingshappen.A:Thankyousomuch.B:Noproblem.OutsideviewReferenceanswersThelasttimeIexperienceddéjàvuwaswhenIwasvisitinganewcitywithmyAswewerewalkingdownastreet,IsuddenlyfeltlikeIhadbeeninthatexactspotbefore,eventhoughIhadnevervisitedthatItwasastrangesensationoffamiliaritythatIcouldn’texplain.Ireadsomewherethatdéjàvuisasignthatapersonisrecallingmemoriesfromapastlifeorparalleluniverse.Apersonmaynotbeexperiencingtheeventinthislifeorthisuniverse,butsuchthingsmayhaveoccurredinthepreviouslifeoranotheruniverse.Anotherpossibleexplanationisthatdéjàvuistriggeredbyasituationorenvironmentthatcloselyresemblesadreamoranimaginedscenariothatthepersonhaspreviouslyexperienced.ScriptsScriptsHaveyoueverexperiencedtheoddfeelingwhereyoucouldswearyou’dbeensomewherebeforeorhadthesameconversationwithsomeonebutreallydidn’t?Fornoapparentreason,youfeellikeyou’rerelivingapastexperience.Thesensationissopowerfulthatsomepeopleimaginethattheyhavebeenthereinapreviouslife.Thissuddenfeelingoffamiliarityisknownasdéjàvu,whichisaFrenchtermthatliterallymeans“alreadyseen”.Despitethefactthatitoccursdéjàvuisnotanuncommonphenomenoninhumans.About60to70percentofpeopleexperiencedéjàvuatsomepointintheirlivesanditismostcommonbetweentheagesof15and25.Thefactthatdéjàvuoccurssorandomly,rapidly,andinindividualswithoutamedicalconditionmakesitextremelydifficulttoThesimplestexplanationiswhenyouhavedéjàvu,itmightnotactuallybedéjàvuatall.Thefeelingoffamiliaritycouldbehappeningbecauseyou’veactuallyhadthesameexperienceinthepastbutsimplydon’trememberit.Researchersbelievethatdéjàvuislikelyamemoryphenomenon.ItcanoccurwhensomeoneencountersascenariosimilartoanactualmemorybuttheyfailtorecallthePartofthebrainthatmakesusfeelfamiliarityissomehowactivatedwithouttriggeringotherareasassociatedwithThatcouldexplainwhysodifficulttopindownwhatfeelsfamiliaraboutthedéjàvu.usuallyavaguefamiliarity,notaspecificobjectorperson.Anothertheorysuggeststhatitcouldbesomesortofmalfunctioningbetweenthelong-andshort-termcircuitsinthebrain,meaningnewinformationmaytakeashortcutstraighttothelong-termThisskipsoverthemechanismsthebrainnormallyusestostoreinformation,soitcouldfeellikeweareexperiencingsomethingfromthepast.Inanotherresearcherstriggereddéjàvubyencouragingfalsememoriesinthemindofthestudyparticipants.WhentheylookedatthefunctionalMRIscanstheyfoundthatitwasn’tthepartsoftheirbrainsrelatedtomemorybutinsteadthepartrelatedtodecision-makingthatlitupwhentheywereexperiencingdéjàvu.Thissuggeststhatduringdéjàvuwe’resiftingthroughourmemoriesseeingifsomekindofWhateverthereason[is]foryoureerieexperiences,totallynormalifyouexperiencedéjàvuafewtimesanotbeinghauntedorhavingapremonition.Bitsofyourbrainarejusteversoslightlyandbrieflyputtingamemoryinthewrongbox.1Watchavideoaboutdéjàvu.Check(√)thetruestatementsandcorrectthefalseones.1It’smorecommonforelderlypeopletoexperiencedéjàvu.2Aspecificobjectorpersonusuallytriggersdéjàvu.3Déjàvucanbeexplainedasamemorymalfunction.4Researchersusebrainscanstostudydéjàvu.5Experiencingdéjàvuafewtimesayearisconsiderednormal.Referenceanswers×(Mostpeopleexperienceatsomepointintheirlivesanditismostcommonbetweentheagesof15and25.)×isusuallyavaguefamiliarity,nottriggeredbyaspecificobjectorperson.)3√4√5√2Watchthevideoagainandcompletethefollowingchart.Whatdoscientistsknowaboutdéjàvu?Definitionisasudden1) ,whichmeans“alreadyseen”inFrench.PrevalenceAbout2) percentofpeopleexperienceatsomepoint,mostcommonbetweentheagesof15and25.ExplanationsThesimplestexplanation:Itisa3) thatoccurswhensomeoneencountersascenariothat’s4) anactualmemorybutcan’trememberit.Partofthebrainresponsibleforfamiliarityissomehow5) withouttriggeringothermemory-relatedareas.Anothertheory:Therecouldbeamalfunctionbetweenthelongandshortcircuitsinthebrain,meaning6) maytakeashortcutstraighttothelong-term7) .Anotherstudy:Researchersbelievemightbelinkedwith8) ratherthanmemory.Thissuggestswemaybecheckingourmemoriesforpossibleerrorsduringexperiences.Referenceanswers:1)feelingoffamiliarity2)60to70memoryphenomenonsimilartoactivatednewinformationmemorydecision-makingHigher-orderthinkingTeachingsuggestionsDivideSsintogroupsofthree.Then,encourageSstoconsideraspectsoftheirlivesthattheyfindstrangeormysterious,orthatdon’tseemtohavescientificexplanations.Onceeachgrouphasidentifiedamysteriousphenomenon,askSstoproposepossiblescientificexplanationsforit.Sscanconductsomeonlineresearchifnecessary.ExploringsuchphenomenawithscientificinquiryhelpsSscultivatecriticalthinkingandanappreciationforevidence-basedexplanations.ReferenceanswersSomepeoplethinkthateyelidtwitchingisanindicationoffortuneormisfortune,orwhenpeopleseeastrangeobjectinthetheytendtoidentifyitasaUFO.However,eyelidtwitchinghasnothingtodowithfortuneormisfortune.Althoughtheexactcauseisunknown,theconditioncanoriginateinthemotornerveactivityofthebrain,andfactorssuchasfatigue,eyestrain,dryeyes,andstresscancontributetoit.ThethingsthatpeoplemistakeforUFOscouldbesomeunusualatmosphericphenomenaorman-madeobjects.Theycouldalsobesomekindofperceptionbiasthatleadstothefalseinterpretation.ListeningacrossculturesNewsreportScriptsA57-year-oldpatient,DavidBennett,withsevereheartfailure,madehistorybysuccessfullyreceivingageneticallymodifiedpig’sheart.Althoughthepatientpassedawaytwomonthslater,thesurgerymarkedasignificantmedicalbreakthrough.ScriptsA57-year-oldpatient,DavidBennett,withsevereheartfailure,madehistorybysuccessfullyreceivingageneticallymodifiedpig’sheart.Althoughthepatientpassedawaytwomonthslater,thesurgerymarkedasignificantmedicalbreakthrough.Foryears,adedicatedteamattheUniversityofMarylandMedicalCenterhadstudiedcross-speciestransplantation.Davidwastoosicktobequalifiedforaregularhearttransplant,soinalastattempttosavehislife,theteamperformedthepig-hearttransplant.Sincethe1990s,researchershavebeenexploringtheuseofgeneticallymodifiedpigorgansfortransplants.Pigsgrowquickly,andtheirorgansaresimilarinsizetohumans’However,thebiologicaldifferencespresentchallengesforsuccessfultransplantation.addressthesechallenges,researchershavegeneticallyengineeredpigorgansbyremovingsomepiggenesandaddinghumanones.Throughthisgenemodification,theyhopetoimprovecompatibilitywithhumanrecipientsandreducetheriskoforganrejection.LanguageandcultureApig-to-humanhearttransplantisatypeofsurgerywhereaheartfromageneticallymodifiedpigistransplantedintoaperson’sbodytoreplacetheheartthatisn’tworkingproperly.Thisisknownasxenotransplantation:transplantingotherspecies’organsintohumans.Normally,thehumanimmunesystemwillrejectthenon-humanorgans,butscientistsareremovingtheanimalgenesthatcauserejectionwhileaddingsomehumangenesthatallowtheimmunesystemtoaccepttheorgan.Uptilltherehavebeentwopig-to-humanhearttransplants.DavidBennett,mentionedinthenewsreport,wasthefirstcase;hediedtwomonthsInthesecondcase,thepatientdiedfromorganrejectionsixweeksafterthetransplant.1Answers1B2C3DPassageScriptsScriptsItisestimatedthattheworld’spopulationwillsoarfrom7.9billionin2021to9.7billionin2050.Expertssayweneeda30percentincreaseinagriculturalproductiontofeedeveryone.Inresponsetothischallenge,scientistsaremakinguseofscientificandtechnologicaladvancementstohelpplantsovercomeenvironmentalandbiologicallimitationsandenhancetheirgrowth.FedericaBrandizzi,aplantbiologistatMichiganStateUniversity,usesgeneticsasameanstoalteraplant’scellsatthemolecularlevel.Thiscanenhancetheproductionofaminoacidsinplants,makingthemgrowbetterandbecomemoreresistanttodiseases.Herteamisalsoworkingontheuseofenzymestomakecellwallsinplantslikesoybeansmoreflexible,enablingthemtostoremorenutrientsandgathermorebiomasstobeusedasfuel.AnotherfocusisonexploringplantsthatrequirelesswatertoThisisextremelyimportant,asitnotonlyhelpsrelievetheshrinkingwaterresources,butalsoprovidesvaluableinsightsforfuturespaceagriculture.Byregulatingtheopeningandclosingoftinyporesinleaves,theteamisabletoimprovewaterretentioninplants,helpingthemsurviveandthriveinharshconditions.Throughtheircontinuouseffortsinplantmodification,Brandizziandherteamarehelpingtoensureasustainablefoodsupply.Facedwiththegrowingpopulationandclimatechange,theirworkisbecomingmoreandmoreimportant.2Referenceanswerspopulationenhancetheirgrowthaplant’scellsmoreflexiblerequirelesswaterregulatingAdditionalactivityThepassagehasshownthatscientistsaretryingallkindsofmeanstoimproveplantstofeedagrowingpopulation.OnesuchendeavoristobringseedsintospacetoseeiftheycangrowInrecentyears,ChinahassentnumeroustypesofseedstoitsTiangongSpaceStationforspacebreedingexperiments.TcanaskSstoconductsomeonlineresearchontheexperimentsandsharewhattheyhavefound.ReferenceanswersChinahassuccessfulgrownriceinspace.In2022,Chinesetaikonauts1onboardtheShenzhouXIVspacecraftreturnedwiththeworld’sfirstriceseedsproducedinorbit,1Astheonlythreecountriesthatarecapableofmannedspacefaring,theastronautsoftheUnitedStates,Russia,andChinaarereferredtoas“astronauts”,“cosmonauts”and“taikonauts”,respectively.allowingscientiststoprobetheeffectsofmicrogravityonricegrowthandfindasustainablefoodsourceforlong-termspaceexplorations.In2023,Chinahassentmorethan100typesofseedstoitsTiangongSpaceStationforspacebreedingexperiments.Intheseexperiments,seedsareexposedtocosmicradiationandmicrogravityinspacetogeneratepotentiallybeneficialgeneticmutations.Scientistsarehopingthatsomechangescouldincreasecropyieldsandmakeplantsmoreresistanttodroughtandcertaindiseases.ListeningskillTeachingsuggestionsProblem-solutionstructureiscommonlyfoundinsciencenewsandpassages.TohelpSsfamiliarizethemselveswiththekeywordsindicatingaproblem-solutionstructure,Tcanrepeatsomelinesfromthescript,suchas“Expertssayweneeda30percentincreasein…,”“Inresponsetothischallenge,scientistsaremakinguseof...,”“Herteamisalsoworkingontheuseofenzymestomake…,”“Anotherfocusisonexploringplantsthat…,”“Byregulatingtheopeningandclosingoftinyporesinleaves,theteamisabletoimprovewaterretentioninplants,helpingthem…”and“Throughtheircontinuouseffortsinplantmodification,Brandizziandherteamarehelpingto...3Answers1D2D3AHigher-orderthinkingTeachingsuggestionsDivideSsintogroupsoffourandassigntwoSstoargueforthebenefitsofGMplantfoodsandtwoSstoarguefortheharms.TshouldremindSstoprovideevidence-supportedargumentsandcounterargumentsbyaddressingkeyquestions.Then,askSstoengageinadebatewithintheirgroups.ThedebateshouldconcludewitheachgroupsummarizingtheirkeypointsandprovidingafinalstatementonwhetherthebenefitsofGMplantfoodsoutweighthepotentialharmsorviceversa.ThisassignmentaimstodevelopSs’criticalthinking,research,andpresentationskillswhilefosteringanunderstandingofthecomplexitiessurroundingGMplantfoods.ReferenceanswersBenefitsofGMplantfoodsHighernutritionalvalueGMplantfoodscanbeengineeredtoenhancenutritionalcontent,suchasgoldenriceenrichedwithvitaminA,whichcandecreasetheriskofseriousconditionslikenightblindness.MoregrowthefficiencyFarmerscanproducethesameamountoffoodusingfewerresourcessuchasland,andfertilizer,helpingtokeepfoodproductioncostsdownandmakingfoodmoreaffordabletolow-incomepeople.EnvironmentalbenefitsGMplantfoodscanreducetheneedforchemicalpesticidesandherbicides,bringingalowerenvironmentalimpactcomparedtoconventionalfarming.HarmsofGMplantfoodsConcernsforunintendedhealthconsequencesScientistsfindthatthereisariskthatGMplantfoodscantriggerallergicreactions.Forinstance,ifagenefrompeanutiscombinedwithasoybean,thereisslightchancethatapersonwithanutallergycanhaveanallergicreactiontoproductsmadewiththesoybean.LossofbiodiversityGMcropsmayoutcompetenativecrops,causingtheirextinction.Unexpectedlong-termimplicationsInthelongterm,GMplantsthatareresistanttoordinaryweedsandpestsmayleadtosuperweedsandsuperpeststhataremuchmoredifficulttomanage.TalkingaboutChinaTaskoverview2023qualityproductive這一概念?！靶沦|(zhì)生產(chǎn)力”的三個(gè)特征是“高科技”、“高效能”和“高質(zhì)量”。SpeakingLanguagefile帶領(lǐng)學(xué)生學(xué)習(xí)視頻中的重要表達(dá)，并鼓勵(lì)學(xué)生在產(chǎn)出中盡可能用到相關(guān)語(yǔ)言。ScriptsThishigh-speedarrivinginNanjingafterits190mph2journeyacrossChina.OnboardarepeoplegoingtoworkorseeingfriendsintheThey’repassengersmakinguseofnowthebiggesthigh-speedrailnetworkanywhereintheworld.properlyunderstandhowthisjaw-droppingnetworkcametobeandwhereheaded,youneedtolookatthestoryofmodernChina.Sincethe1980sthecountryhasroughlydoubleditsGDPeveryeightyears.Morethan800millionpeoplehavebeenliftedoutofpoverty.Citiesfewhadheardof20yearsagoarenowvastmetropolises.Acrossthecountry,skyscraperssoaraboveyourhead,factoriesteemwithactivityandtradebooms.Thisisn’talldowntohigh-speedrail.Thefastlineshaveplayedahugeroleinacceleratingthecountry’sgrowthsince2008,butbeforethattrainsystemswereunderpressure.Facedwithbucklinginfrastructure,stateplanningforhigh-speedrailbeganin1990andthefirstlinebetweenBeijingandTianjinopenedin2008,cuttingtravelbetweenthetwocitiesfrom70minutesto30.Otherlineswerequicklyintroduced,linkingthecitiesofShanghai,Wuhan,Chengdu,andmore.Initialtrainswereimportedorbuiltundertechnologytransferagreementswithforeigntrain-makers,butsincethenChineseengineershavebecomeleadersinthefield.Thecountrynowhasthelongesthigh-speedrailline,betweenBeijingandGuangzhou3,thefastesthigh-speedline,betweenBeijingandShanghai,andthefirstcommercialmaglevline–reachingatopspeedof267mph.Asof2021,China’shigh-speedrailnetworkstretchesfor37,900kilometers,whileitsentirerailtracklengthrunsforover141,000kilometers.By2035,thehigh-speednetworkwillhavegrownto70,000kilometers,andthetotalraillengthwillextendover200,000kilometers.China’scaseforhigh-speedrailcontinuestostrengthen.Thelinesbuilthavedrasticallyshortenedtraveltimes,improvedreducedcarbonemissions,andallowedmanyChinesepeoplefromruralorlessdevelopedareastoaccessthecountry’smassivecities.1Referenceanswerseveryeightyearshigh-speedrailfrom70minutesto302Mphisshortformilesperhour,and1mphisapproximatelyequivalentto1.61kilometersperhour.3Thisisdatafrom2021.In2024,thelongesthigh-speedraillineistheXuzhoutoUrumqihigh-speedrailway,withatotallengthof3,176kilometers.4)37,9005)70,000improvedsafetymassivecitiesSamplescriptsDearlisteners,Iwillbetalkingabouttheremarkabledevelopmentofhigh-speedrailinChina.Sincethe1980s,ChinahasroughlydoubleditsGDPeveryeightyears,significantlyimprovingpeople’slivingstandards.addresstheissuesofslowrailwayspeedsanddifficultiesinpurchasingtickets,Chinahasdecidedtoupgradeitsrailwaysystemintheearly2000s.Thefirsthigh-speedline,betweenBeijingandTianjin,openedin2008.Otherlineswerequicklyintroduced,linkingcitiesofShanghai,Chengdu,andmore.Accordingtothelateststatistics,bytheendof2023,thelengthofChina’shigh-speedrailisaround45,000kilometers.By2035,thehigh-speednetworkwillhavegrownto70,000kilometers,andthetotalraillengthwillextendover200,000kilometers.China’shigh-speedrailnetworkisthelongestandmostextensivelyused,accountingfortwo-thirdsofthetotalhigh-speedrailwaynetworks.Inadditiontothevastscale,speedisanotherfeature.trainscapableofreachingspeedsexceeding300kilometersperhour,passengerscantravelbetweenmajorcitiesinamatterofhours.thefastesthigh-speedline,theBeijingtoSha