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新视野大学英语视听说教程第二册第三版unit4听力答案
一、1.pronounces2.slowly3.spoken4.mistake5.solution6.impressed7.challenges
二、1.slowly2.touse3.spoken4.pronunciation5.writing6.worried7.right
三、1.Firstofall2.Lateron3.laughat4.takelotsofgrammarnotes5.couldn'tpronounce6.alreadysung7.specialsuggestions8.wactching;boring
四、1.don't;either2.tostudy3.spent;on4.too;to5.Howdoes
100分悬赏!!!新视野大学英语视听说教程4第八单元答案!!
Keys:1.B2.C3.D4.A5.C
Keys:1.B2.A3.A4.A5.D
Task2:TheImprovementofRice
(S1)Research(S2)genes(S3)journal(S4)warn(S5)productivity.(S6)grow(S7)survival.(S8)Plantbreedershavealreadyusedpreliminaryinformationfromthericegenometocreateexperimentalstrainsofricethatbetterresistcoldandpests.
(S9)Thenewmapcouldbetterexplainmorethanjustrice.Ricesharesacommonancestorwithothercerealcrops.
(S10)Whilesignificantprogresshasbeenmadeintheanalysisofthericegenome,themappingofhumangenesisalsomakingheadway.
Keys:1.A2.B3.C4.B5.C
Susan:Withsomanypeoplesufferingfrommalnutritionaroundtheworld,whyarepeopleprotestingagainstgeneticallymodifiedfoods?
Chris:Somepeopleareprotestingaboutgeneticallymodifiedfoods,butevenmorepeopleareprotestingthefactthatprocessedfoodscontainingtheseingredientsaren’tlabeled.
Susan:Butwhyshouldtheybelabeled?
Chris:Noteveryoneissurethatgeneticallymodifiedfoodsaresafe.Theywanttobecertainthatbiotechfoodshavethesmecompositionasorganicfoods.
Susan:Buttherearemoreurgentproblemsinthisworld.Manypeoplearedyingofstarvation.
Chris:Butthosewhoaren’tstarvingmaywantgeneticallymodifiedfoodstobelabeledsotheyknowwhatfoodstheyshouldanddshouldn’teat.
Susan:Youknow,Iheardofageneticallymodifiedfishthatgrewtobetentimesitsnormalsize.
Chris:Thatsuresoundsabnormal.
Susan:Yeah,itdoessoundabitstrange,butthatfishcouldfeedtentimesasmanypeople.
Chris:You’reright;geneticallymodifiedfoodmighthelpsolveworldhunger.ButIthinkwehavearighttoknowwhatweareeating.
MODEL2Doyouthinkthecloningofhumans
shouldbeforbiddenbylaw?
Script
Susan:AfterthecloningofDollythesheep,Ithinkhumancloningisnext.
John:Whoa.Ihavesomereservationsaboutit.Therearestllmanyscientificproblems
tosolvebeforehumancloningstarts.
Susan:There’saneasierway.TheClonaidCompanysaysthey’veclonedhumans.
John:Oh,myGod!Theseguysclaimaliensfromanotherplanettaughtthemhuman
cloning.
Susan:Awomangavethemhalfamilliondollarstocloneherdeaddaughter.
John:Clearlythatwomandoesn’tknowmuchaboutcloning.Howriskyitis!
Susan:Iknowit’sinefficient.Ittook276triestoproduceDolly.Butwhyisitrisky?
John:Clonedanimalsgrowabnormallylargeandageunnaturallyfast.
Susan:Inotherwords,thatwomanmaynotbehappywithhercloneddaughter.
John:Thentherearetheemotions.Nooneknowsifcloningdamagesthemind.
Susan:Doyouthinkthecloningofhumansshouldbeforbiddenbylaw?
John:Tomymind,thecloningofhumanorgansshouldn’tbeprohabited.Itmayhelp
solvemedicalproblems.
Susan:Iseeyourpoint:cloningshouldberegulatedifit’stobenefithumanity.
MODEL3Isitinterferingwithnature?
Script
Nora:Somereligiousgroupsareopposedtogeneticresearch.Theybelieveit’sinterferingwithnature.
John:Iknow.Butnaturecanbeprettyhard-nosedtoo,soweoftenneedtointerferewithher—webuilddamstocontrolflooding.
Nora:There’remanydiseasesthatareapartofnature,andtheycausepeopleagreatdealofmisery:canceranddiabetes,forexample.
John:Abetterunderstandingofthegeneticcodethatcontrolsourbodywouldbeagreathelpincuringmanydiseases.
Nora:Theprojecttomapthehumangeneticcode…what’sthatcalled?
John:Thegenomeproject.Asyousay,ithastremendouspromisetomakeourlivesbetter—justintheabilitytoidentifyandcorrectgenetically-causeddiseaseslikeAlzheimer’s.
Nora:Somediseaseslikecancerarealsobelievedtohaveageneticswitch.
John:That’sright,andonceresearchersidentifytheswitch,perhapstheycanturnoffcancerorAlzheimer’s.
Nora:Peoplearealsoconcernedthatsciencewillenableustodeterminesuchqualitiesasintelligenceandheight.
John:Youknowit’sgoingtohappen—it’sjustamatterofwhen.
Nora:ImagineifeveryonewasacombinationofYaoMingandAlbertEinstein.
John:Butwhatiftheygetitwrong,andyouwindupwithYaoMing’sknowledgeofnuclearphysicsandAlbertEinstein’sheight?
Nora:Allthosereligiousgroupswouldsaythatitservedyouright.
Over70%ofU.S.consumerssupportbiotechnology.
InarecentreferenduminOregon,votersrejectedaproposaltorequirespeciallabelsonallproductscontainingbiotechingredientsbyanoverwhelming73%to27%.
Chinesescientistshaveusedbiotechnologytocreateanewtypeoftomato,whichcontainsthevaccineagainsthepatitisB.
Thistechnologycanbeusedtosavelives,easepainandsufferingandimprovethehumancondition.
Keys:1.A2.B3.C4.C5.D
Keys:1.T2.T3.F4.F5.T
Bioinformatics
Script
It’sacomplexnameforacomplexsubject.Bioinformaticsisthekeytofiguringoutthewealthofinformationinthehumangenomeproject.
Researchershavenearlymappedoutallofthe30,000genesthatmakeuphumanDNA,butmakingsenseofusefuldataisnoteasy.
ThecompanyDoubleTwistisapioneerinthebusinessofbioinformatics.
〔SOUNDBITE〕
DoubleTwistworksmainlywithinformationthatisalsoavailabletothepublic,siftingthroughdatatofindwhatmayhelplinkabiologicalproblemlikecancer,toitspossiblecure.
〔SOUNDBITE〕
Thecompanythensellssoftwareanddatatopharmaceuticalcompanies,biotechcompanies,andacademicinstitutions,whichusethemintheirwork.Thisprovidesasolutiontohelppeoplebetterunderstanddatafromthehumangenomeproject.
〔SOUNDBITE〕
Bioinformaticsspeedsupdrugdevelopmentandprovidesmoreaccurateresearch.
〔SOUNDBITE〕
HumanGenomeSciencestakestheprocessonestepfurther.Itusesbioinformaticstodevelopdrugsusingitsowngenomicinformation.
〔SOUNDBITE〕
Rightnow,HumanGenomeScienceshasfournewdrugsbeingtestedthataretheresultsofgenomicresearch.Bioinformaticssystemsdevelopedwithinthecompanyplayedanimportantroleindiscoveringthesedrugs.
〔SOUNDBITE〕
Bioinformaticscanalsobringmuchquickerreturnsforinvestors.
〔SOUNDBITE〕
Eventhoughitsroleiscrucial,bioinformaticsifonlyasmallpartoftheoverall$305billionbiotechsector,accountingforonlyabout$2.23billion.
Butsomeinvestorsbelievethatbioinformaticshasgreatpotential.
〔SOUNDBITE〕
Sounlessdrugcompaniesstartdevelopingtheirownbioinformaticssystemsorpartnerwithcompaniesthatcanprovidethem,theymaygetleftbehindintheracetodiscovernewdrugs.
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