英语关于克隆的演讲ppt

•Didyoueverimagineofhavingachildthatistheexactreplicaofyou?•Didyoueverimagineofhavingthecureforheartdiseaseorcancer?•Cloningisthereplicationofanexactgeneticcopyofanorganismbyuseofasomatictissue(orcell)fromthedonororganism.Cloningcanbeusedinanimals,humanorgans,orevenhumans.•HeartdiseaseisthenumberonekillerintheUnitedStates.Scientistspredictthatinthenearfuturetheywillbeabletoclonehealthyheartcellsandinjectthemintodamagedareas.Itwillbesogreatthatwecansavemorepeople’slife.Anotherdiscoverythatscientistsanddoctorsareanticipating(预测)isthecloningofcellsandtissues.Ifdoctorscantakehealthycellsandtissuesfromapatient’sbodyandusethemtomakeorgans,thechancethatthebodywouldrejecttheorganisdrasticallyreduced.Thiswouldundoubtedlyincreasethesurvivalrateofpatientsundergoingorgantransplants.Somepeoplesay:“Anotherbenefitofcloningisthatinfertilecouplescouldhavechildren.”However,Idon’tagreewiththisopinion.Thisbaby’sgenemustbecompletelyobtainedfromoneoftheparents,whichwouldmakethebabyunlike“Lovecrystallization(爱的结晶)”.Inaddition,wedon’tknowwhataretheconsequencesofhumancloning.•Clone,toacertaindegree,isbeneficialtomankind.However,theabuseofthissciencetechnologywillbringhumanbeingunthinkabledestruction.Therefore,weshouldbecautioustouseclonetechnique.