Unitampnbsp2ampnbspCloning

　　unit2cloningthefirstperiodreadingteachinggoals教学目标1。grasptheimportantwordsandsentencespatternsa。重点词汇和短语clone，commercial，haveagreatimpacton，undertake，appropriate，object，forbid，accumulate，castdown，objectto，themedia，infavourofb。重点句子itisawayof。thefactisthat。thequestionthatconcernedallscientistsis。2。abilitygoals能力目标enablethestudentstodescribecloning：whatistheadvantagesofcloning？whatistheproblemsordangersofcloning？whatisyouropinionofcloning？3。learningabilitygoals学能目标knowthedefinitionofthecloneandhelpthestudentslearnhowtodescribecloning。teachingimportantpoints教学重点graspthemainideaofeachparagraphandthethemeofthetextteachingdifficultpoint教学难点helpthestudentsanalyzethewritingtechniquesofthearticle。teachingmethods教学方法skimming，taskbasedmethodanddebatemethod。teachingaids教具准备aprojectorandsomeslides。teachingproceduresstepileadinashortquizetotesthowmuchtheyknowaboutcloning。showthemsomepicturestoknowtheimportanceoftheclone。arisetheirinteresttoknowmoreknowledgeaboutclone。stepiiprereading
　　questionsaboutclone：1。what’stheclone？answer：cloningisawayofmakinganexactcopyofanotheranimalorplant。itcanbepidedintonaturalcloneandmanmadeclone。anaturalcloneisonethatoccursinnatureandamanmadecloneisonethatisprocuredthroughhumanintervention（介入，干预）。2。arethefollowingclonesthesame？ifnot，whatisthedifference？answer：no。thefirsttwoaremanmadeclones，theresttwoarenaturalclonesstepiiifastreadingskimthetextandgetthemainideaofeachparagraphandthethemeofthetextmainidea：para1whatisthecloningpara2twomajorusesofcloningpara3thebirthanddeathofdollypara45controversybroughtbydollythem：animalcloningraisedargumentsandscientistsarenotsureaboutitsfuture。stepivscanning1。taskspara1：1。howdogardenerscloneplants？para2：1。whattwomajorusesdocloninghave？2。howmanyfemalesheepparticipateinthecloningofanewsheep？para3：fillintheblankspara4：guessthemeaningofthewordcontroversialpara5：trueoffalse2。languagepoints1。identicaladj。完全相同的（常与withto连用）同一的，同样的eg。thesetwodesignsarealmostidentical。2。straightforwardadj。简单的，易懂的，直接了当的；正直的，坦率的eg。thequestionisquitestraightforward；whycan’tyouanswerit？atleasthewasquitestraightforwardaboutit，youcan’tsayhewastryingtodeceiveyou。他起码在那件事上是相当坦率的，你不能说他试图欺骗你。3。undertakevt。实施，从事，着手做，承担，担任，许诺，保证，采取undertakesth承担某事undertaketodosth许诺做某事同意做某事undertakethat保证undertaking（n）用单数任务事业保证4。castdown：feelingunhappyanddepressed使沮丧，低沉，使下降，推翻becastdownfeeldiscouragedhewasmuchcastdownbythefailureoftheexperiment。don’tbesocastdown。justkeepupyourspirits5。beappropriatetbesuitableforaparticularperson，condition，occasionorplace；fitting适合于的，与相称的用与你的题目相称的体裁写。writeinastyleappropriatetoyoursubject。普通鞋不适于下稻田。ordinaryshoesarenotappropriatetopaddyfields。6。astormof：suddenviolentoutbrustordisplayofstrongfeeling常指感情猛烈爆发或强烈表现astormoftears泪如雨下astormofprotestapplausecheersabusecriticismbulletsarrows一阵猛烈的抗议暴风雨般的掌声暴风雨般的欢呼声辱骂评击弹雨箭雨storminateacup小题大作，茶杯里的暴风雨takebystorm袭取；突然攻夺；博取（观众的）欢心7。havemakeastronggreatimpacton对有产生巨大影响这本书对其读者产生了极大的影响。thisbookmadeagreatimpactonitsreaders。这场反对吸烟的运动对年轻人有极大的影响。theantismokingcampaignhashadquiteanimpactonyoungpeople。8。accumulatevt。vi。：togatherorpile收堆集，积聚累，堆积强调经过一段比较长的时间由少积多的积累，使用范围较广，似乎凡是数量方面的增长都可以表示。thecompanyhasaccumulatedgreatwealthwithinafewyears。stepvreadagaindosomeexercisestocheckhowwelltheygraspthispartiftimepermits，askthestudentstohaveaheateddebateoverwhetherhuamncloningshouldbeallowed。stepconsolidationaskthestudentstofillintheblankscorrectlyhomeworkreadthepassageagainandfindoutallthenounclausesinthetext。writeashortpassageaccordingtothefollowingtopic。shouldhumancloningbeallowed？3。retelltheprocedureofthedollythesheep。