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考研英语阅读理解翻译历年真题 考研英语阅读理解翻译历年真题 和所有的英语考试一样,考研英语中阅读题的分值最大。所以阅读是大家最重视的一个题型,下面是小编给大家准备的考研英语阅读理解及翻译的历年真题,欢迎大家阅读练习! I'venevermetahumanworthcloning,sayscloningexpertMarkWesthusinfromthecrampedconfinesofhislabatTexasA&MUniversity.It'sastupidendeavor.That'saninterestingchoiceofadjective,comingfromamanwhohasspentmillionsofdollarstryingtoclonea13-year-olddognamedMissy.Sofar,heandhisteamhavenotsucceeded,thoughtheyhaveclonedtwocalvesandexpecttocloneacatsoon.TheyjustmightsucceedincloningMissylaterthisyear—orperhapsnotforanotherfiveyears.Itseemsthereproductivesystemofman'sbestfriendisoneofthemysteriesofmodernscience. Westhusin'sexperiencewithcloninganimalsleaveshimvexedbyallthistalkofhumancloning.InthreeyearsofworkontheMissyplicityproject,usinghundredsuponhundredsofcanineeggs,theA&MteamhasproducedonlyadozenorsoembryoscarryingMissy'sDNA.Nonehavesurvivedthetransfertoasurrogatemother.Thewastageofeggsandthemanyspontaneouslyabortedfetusesmaybeacceptablewhenyou'redealingwithcatsorbulls,heargues,butnotwithhumans.Cloningisincrediblyinefficient,andalsodangerous,hesays. Evenso,dogcloningisacommercialopportunity,withaniceresearchpayoff.EversinceDollythesheepwasclonedin1997,Westhusin'sphoneatA&MCollegeofVeterinaryMedicinehasbeenringingbusily.CostisnoobstacleforcustomerslikeMissy'smysteriousowner,whowishestoremainunknowntoprotecthisprivacy.He'sploppeddown$3.7millionsofartofundtheresearchbecausehewantsatwintocarryonMissy?sfinequalitiesaftershedies.Butheknowsherclonemaynothavehertemperament.Inastatementofpurpose,Missy'sownerandtheA&MteamsaytheyarebothlookingforwardtostudyingthewaysthatherclonediffersfromMissy. ThefateofthedogsampleswilldependonWesthusin'swork.Heknowsthatevenifhegetsadogviablypregnant,theoffspring,shouldtheysurvive,willfacetheproblemsshownatbirthbyotherclonedanimals:abnormalitieslikeimmaturelungsandheartandweightproblems.Whywouldyoueverwanttoclonehumans,Westhusinasks,whenwe?renotevenclosetogettingitworkedoutina