（含unittest）新视野大学英语视听说教程第二版4最全全套答案之.doc

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1、(含unittest)新视野大学英语视听说教程（第二版）4全套答案之Unit8Unit8LeadinTask11)DNA(2)cloning(3)GMcrops(4)stemcell(干细胞)(5)genome(基因组)(6)geneticmap(基因图)(7)geneticmapping;genemapping(作基因图)(c)thechemicalinthecellsofanimalsandplantsthatcarriesgeneticinformation(a)producinganexactcopyofapla

2、ntorananimalfromitscells(f)geneticallymodifiedcrops(d)acellthatistakenfromahumanorananimalatanearlystageofdevelopmentandiscapableofdevelopingintocellsofanytype(g)thecompletesetofgenesinacelloforganisms(b)themapofthegenesofananimaloraplant(e)drawingthemapofthegene

3、sofananimaloraplantTask2GMcropsstemcellgeneticmapcloningBasiclisteningBCDACListeningin>Task1BAAADListeningin>Task2ResearchgenesjournalwarnproductivitygrowsurvivalPlantbreedershavealreadyusedpreliminaryinformationfromthericegenometocreateexperimentalstrainsofricet

4、hatbetterresistcoldandpestsThenewmapcouldbetterexplainmorethanjustrice.RicesharesacommonancestorwithothercerealcropsWhilesignificantprogresshasbeenmadeintheanalysisofthericegenome,themappingofthehumangenesisalsomakingheadwayListeningin>Task3CBDADLet'stalk>Task1ki

5、tchensopposedlabeledcompletelylawnowayGMingredientschoiceTougheranycontentthepublicfearsafernaturallycheapdecideFurtherlisteningandspeaking>Furtherlistening>Task1BiotechnologyRejectedspeciallabels73%to27%anewtypeoftomatoagainstsavelivesimprovethehumanconditionmed

6、icinesconventionalfoodsFurtherlisteningandspeaking>Furtherlistening>Task2AABBAFurtherlisteningandspeaking>Furtherlistening>Task3DBACCFurtherlisteningandspeaking>Viewingandspeaking>Task1treesnativegenesblackoniontastepoisonoustestedtoxicfishpopularbiggerfoodnormal

7、lylargerthreefoldgenesoriginallydifferentriskslaboratoryenvironmentUnittest8CBDBD1yield2identify3central4abnormal5how6to7signals8Themostimportantpotentialapplicationofhumanstemcellsisperhapsthegenerationofcellsandtissues9Stemcells,directedtodifferentiateintospeci

8、ficcelltypes,willofferasourceofreplacementcellsandtissu10itmaybecomepossibletogeneratehealthyheartmusclecellsinthelaboratoryandthentransplantthosecellsintopati