英语一轮复习 Unit2 Cloning词汇课件 新人教版选修8 课件.ppt

假设你班就科学家是否应该克隆人进行了讨论，20％的同学赞成，认为其一：有利于促进该科学领域取得突破；其二：克隆智力过人的伟大科学家，人类将拥有更多有非凡贡献的人。80％的同学反对，因为这样违背社会道义，克隆人没有父母，无法像正常人一样生活，试谈谈你的看法。词数120字左右。范文背诵
Didyoueverimaginehavingachildthatistheexactreplica（复制品）ofyou?Didyoueverimagineofhavingthecureforheartdiseaseorcancer?Well,thesefantasiesarenotfarfromreach.Thewaywecouldreachthesefantasiesisthroughaprocesscalledcloning.Cloningisthereplicationofanexactgeneticcopyofanorganismbyuseofasomatictissue(orcell)fromthedonororganism.Cloningcanbeusedinhumans,humanorgans,orevenanimals.Therearemanyadvantagesanddisadvantagesofcloning.
Abenefitofcloningiscloninghumanorgansorbodyparts.Ifapersonhasadysfunctional（变形）liverorheartthentheycouldgetitclonedandgetabrandnewone.Thesearesomeofthebenefitsofcloning.Eventhoughtherearealotofbenefitstocloning,therearealsoalotofdisadvantagesofcloning.Onedisadvantageiswhethercloningisethical.Cloningwillbringupagreatcontroversyonwhethercloningisthe“right”thingtodoornot.Thiscontroversyiscurrentlygoingonrightnowandwillbeevenagreatercontroversyifthegovernmentallowscloning.Manypeoplethinkthatnatureshouldjusttakeitscourse.Otherpeoplethinkthatcloningwillbeaverygoodthingtosociety.
句型背诵
①Thewaywecouldreachthesefantasiesisthroughaprocesscalledcloning.
②Abenefitofcloningiscloninghumanorgansorbodyparts
③Eventhoughtherearealotofbenefitstocloning,therearealsoalotofdisadvantagesofcloning.1._______vi.不同；相异
→_______adj.不同的→_______n.不同;不同之处
2._______adj.精确的;准确的
→_______adv.精确地，准确地
3._______adj.商业的；贸易的→_______n.商业；贸易
4._______adj.简单的;直接的;坦率的
5._______n.程序;手续;步骤
6._______v.着手;从事;承担7.______v.反对；不赞成→______n.不赞成；反对；异议
8.______adj.道德（上）的;伦理的→______adv.道德上地;伦理上地
9.______vt.&vi.积累;聚积→______n.积累;聚积
10.______vi.退休;离开→______n.退休
11.______vt.打扰；vi.操心;n.烦扰
12.______n.假定；设想→______v.以为；设想；承担；呈现
13.______n.规则，规章;法规→______v.规范；调节
→______adj.定期的，有规律的;正规的
14.______vt.抵抗，对抗→______n.抵抗，反抗；抵抗力
→______adj.有抵抗力的
15.______adv.仅；只；不过→______adj.仅仅的
答案：1.differ;different;difference2.exact；exactly
3.commercial;commerce4.straightforward5.procedure
6.undertake