外研版高中英语Book Module Period vocabulary and readingcloning and DNAppt课件.ppt

VocabularyandReadingCloningandDNA 1 Languagepointsbeforereadingthepassage 2 acidDNAtwistingladderfundamentalcomponentsoflifethegeneticmake upaproceduretouseenzymesasequenceofgenesinsert into hostcellbegeneticallyidenticalto 酸性DNA 双螺旋结构 生命基本元素 基因构成 利用化学酶的程序 一定顺序的基因 把 植入 主细胞 从遗传角度而言完全相同 3 validreasonsoffer asanoptionaltreatmentunderunknownpsychologicalpressurethetalentsofexceptionalhumanbeingsbecontradictorytopossesnewvicesinsteadofexsistingvirtuesobtainasupplyofstemcellsdevelopintorecoverfrom 正当理由 把 作为治疗方案 处于未知的心理压下力 非凡人物的天赋 与 对立 截然相反 拥有新缺点而不是已有的优点 获得大量干细胞 发育成为 从 康复过来 4 repairhumantissuesvoluntarycodeofpracticecompulsarygovernmentregulationsbehandytocloneaprizecowresistbacteriaordiseaseresistrotsorpestsrestrictthebiodiversityofthebreedatacrimescene 修复人体组织 不成文的职业规范 强制性的政府规定 便于克隆 优质奶牛 抵御细菌和疾病 抵御枯病和虫害 限制生物的多样性 在犯罪现场 5 1 Whydowehavethesamecharacteristicsasourparents Becausewehaveinheritedgenesfromourparents 2 Whataregenes Definition TheDNAsegmentscarryinggeneticinformationarecalledgenes Thescientificstudyofgenesiscalledgenetics 6 DNAisanucleicacidcontainingthegeneticinformation Itisintheshapeofatransparenttwistingladder 7 Stemcellsareflexiblecellsthatcandevelopintoeveryothertypeofcellinthebody 8 CloningandDNA 9 Fast readingHowmanypartscanthepassagebedividedinto What sthemainideaofeachpart Para1to2 thediscoveryofthestructureofDNAandthefurtherstudyintoit Para3 howtoclonesomething Para4to8 thereasonsforcloning 10 Para1 31 Useinformationfromthetexttodefinethethreeterms DNA enzyme clone 2 Whatarethescientists achievements WatsonandCrickMendelCohenandBoyer 11 Para1 21 Definetheterms DNA clone enzyme DNAisatransparenttwistingladdermadeoffundamentalcomponentsoflife Acloneisanorganismwhichisgeneticallyidenticaltoanotherone Enzymesarechemicalsformedinthebody Theywon tbreakdowninchemicalreactions 12 Para1 22 Thescientists achievements WatsonandCrick discovededthe ofDNA Mendel understoodthatboththe plantshad thegenetic ofthenewplant CohenandBoyer discovereda touseenzymesto DNA tocutouta ofgenesandfinallyto themintothe cellandcombinewithitsDNA structure parent influenced make up procedure unzip sequence insert host 主细胞 13 Para4 8Howmanyreasonsarementioned Isthereatopicsentence Topicsentence Althoughcontroversial therearemanyvalidreasonstodoso AnItaliandoctorwantsto Anotherreasonisthat Afurtherreasonisto Afourthreasonforcloningisthat Finally 14 Whataretheadvantagesanddisadvantagesofcloning 15 Theadvantagesofcloning Itisanoptionaltreatmentforcoupleswhofinditdifficulttohavechildren Itcanhelpreproducethetalentsofexceptionalpeople Itcanhelpobtainasupplyofstemcells Itcanhelpfarmersraiseresistantcropsoranimals 16 Thedisadvantagesofcloning Aclonewouldbeunderunknownpsychologicalpressure Aclonemaypossessnewvicesinsteadofexistingvirtues Embryosmadefromcloneswouldbewastedwhichsomepeoplewouldfindunacceptable Torelyonafewclonedanimalsorcropswouldrestrictbiodiversity 17 beneficial helping couple identical family society extinct becoming 18 getill young wrong against things products copies 19 Post readingCloningisacontroversialtopicinhumansociety Therehasbeenalotofdebateoverwhetherornotcloningshouldbeused Ifyouhadthepower wouldyoubancloningorwouldyouencourageit Why 20 Debate tocloneornottoclone For Against Presentyourideas I mfor againstcloning Supportyourideawithsolidarguments Firstly Secondly Thirdly Foronething Foranother What smore Moreover Inaddition Makeaconclusion Inshort Tosumup Inconclusion 21 Languagepointsinthepassage 22 genen 基因geneticadj 基因的 遗传学的geneticallyadv 通过基因geneticsn 遗传学geneticistn 遗传学家 23 benefitn 益处 优势v 使受益beneficialadj 有益的 有用的bacteriumn 细菌 plbacteria mediumn 媒体 媒介 plmedia optionn 选择 选择权optionaladj 可选择的 24 producev 生产 制作 培养reproducev 复制 繁殖 重现exceptprep 除 外exceptionn 例外 异议exceptionaladj 特别的 非凡的flexibleadj 灵活的 可变通的flexibilityn 灵活性 柔韧性 25 resistv 抵抗resistancen 反抗 抵制analyzev 分析analysisn 分析 分析结果analystn 分析者 化验员suspectn 嫌疑人 v 怀疑suspectedadj 被怀疑的 26 一系列的把 植入与 结合有压力与 相反 矛盾 asequenceof insert into combinewith underpressure becontradictoryto 27 一系列干细胞发展成为由 发展而来从 恢复过来 asupplyof stemcell developinto developfrom recoverfrom 28 抵制做 依靠 指望怀疑某人 如下在犯罪现场基本成分 resistdoingsth relyon suspectsb of doing sth asfollows atacrimescene fundamentalcomponent 29 1 CohenandBoyerdiscoveredaproceduretouseenzymes chemicalsformedinthebody tounziptheDNA tocutoutasequenceofgenes andfinallytoinsertthemintothehostcellandcombinewithitsDNA Cohen和Boyer发现了利用体内化学酶的程序 解开DNA 截取一定顺序的基因 然后把他们植入干细胞并与它的DNA结合起来 30 2 ButanEinsteinclonemightchooseapathinlifewhichiscontradictorytotheonetheoriginalEinsteinchose 但是Einstein的克隆体可能会选择一条和原版Einstein截然相反的生活道路 31 3 Afourthreasonforcloningisthatsomescientistsandfarmersthinkitwouldbehandytoclone forexample aprizecowwhichcanresistbacteriaordisease ortosowaclonedcropwhichcanres