克隆(英语PPT精华版)

Keywords•somatic(adj.)躯体的；肉体的；体壁的•cell(n.)细胞•asexual(adj.)[生物]无性的；无性生殖的•genotype(n.)基因型；遗传型•offspring(n.)后代，子孙；产物•upsurge(n.)高潮，高涨Keywords•dispute(n.)辩论；争吵；争议•regulate(vt.)调节，规定；控制•relevant(adj.)有关的briefintroduction•Cloningreferstothebiologythroughthesomaticcellofasexualreproduction,andformedbyasexualreproductiongenotypeexactlythesameindividualoffspringofpopulation.ClonesheepDollywasborn•Asweallknow,in1996theBritishscientistsmadeuseofanadultsheepsomaticcellsuccessfullyclonedalamb,Dolly.cloningresearchupsurge•AlongwithclonesheepDollywasborn,thewholeworldstartedacloningresearchupsurge,subsequently,reportsofclonedanimalsappearedcontinuously.Thepointofviewsaboutclone•Atthatmoment,theresultimmediatelywasregardedasthemostimportantandpromisingtechnologybreakthrough,andthebenefitsofthisbreakthroughisobvious.Atthesametime,disputesalsofollowed.Thestandpointsofthegovernments•Expertsthink,animalcloningtechnologyisasuccessofscientificresearchonamajorevent,itbothhasadvantagesanddisadvantages,measuresmustbetakentoregulate,strictlycontroltheharmfulside,makethetechnologytobenefitthehuman.Thestandpointsofthegovernments•Therefore,Governmentsissuedtherelevantpolicies.•TheUnitedStates,Germany,France,England,Canadaandothercountrieshaveestablishedtheexpertgroupstudythisproblem,allcountrieshavethesameviewthatmadelawstostrengthenthemanagementofthistechnology,anditisstrictlyforbiddentouseitforcloninghuman.Thestandpointsofthegovernments•November11,1997,theUnitedNationssignedthedocumenttoopposetheuseofcloningtechnologybreedingpeople,includingChina.•OnJanuary12,1998,19countriesoftheEurop,signedanagreementtostrictlyprohibitedhumancloning.Thestandpointsofthegovernments•Almostallcountriesthink,ifallowedtheexistenceofhumancloning,theyandwewillbeidenticalliketwins,evenmoresimilar,butitwasagainstethical.Myposition•Scienceandtechnologyisadouble-edgedsword,soiscloning.Itcanbringusbenefits,disaster,too.•Thereisnodoubtthatcloningisagreatachievement,butwehavetoberationaltouseit.Wecanapplyittoourmedicalsystem,cloneorganstoreplacethebadones,anddosomeexperimentsonanimals.However,Istronglyopposetocloninghuman,cloneshavenoparents,buttheyhavetheirownthoughts,becauseofit,theworldwillprobablybeinamess.Myposition•Inaword,ourroadisstillverylong,cloningtechnologyisstillinanexploringstage,butIfirmlybelievethatinthefuturethistechnologycanreallybringushappiness!Thanksforwatching!MakePresentationmuchmorefun-byXys2012.11