1、设计：韩福玲审核：高二英语组2016.05.Unit2 Period1(第一课时)Cloning:Where is it leading us?学习目标：学习目标：1、掌握本部分的重点单词、短语和句型。2、培养学生的阅读能力。3、让学生了解什么是克隆，克隆的利弊及对克隆技术的反思。学习重难点学习重难点：培养学生的阅读能力strawberry natural clones一株草莓依靠它沿地爬走一株草莓依靠它沿地爬走”的匍匐茎的匍匐茎,一年内就能长出数百株草莓苗一年内就能长出数百株草莓苗Clone Natural cloneNatural cloneMan-made cloneMan-made c
2、loneNatural clone is one that occurs from the“parent”in a natural form of cloning Man-made clone is one that produced through human intervention(介入介入).Information DollyTwinscactus仙人掌每块落地就生根仙人掌每块落地就生根natural clonesnatural clonesThey are twins identical in sex and appearanceproducing from the same ori
3、ginal egg.cman-made clone1._ vi.不同不同;相异相异 adj.different adv.differently 2.exact adj.精确的精确的;准确的准确的 adv._mercial adj.商业的商业的;贸易的贸易的4.forbid vt.禁止禁止;不准不准 过去式过去式 _ 过去分词过去分词_5._ n.(carry+er)携带者携带者;搬运工搬运工.6.straightforward adj.（straight+forward)简单的简单的;直接的直接的;坦率的坦率的7.undertake vt.(under+take)着手着手;从事从事;承担承担
4、过去式过去式_过去分词过去分词_8.breakthrough n.(break+through)突破突破9.object vi.反对反对;异议异议 n.objection10.correct v.改正改正;纠正纠正 n._differexactlyforbade/forbadforbiddencarrierundertakenundertookcorrection预习导航探究活动一探究活动一.Skimming(Fast reading)Skim the passage and get the main idea of each paragraph.Para 1 A.The problems o
5、f DollyPara 2 B.The two major uses and procedures of cloningPara 3 C.The attitudes towards cloningPara 4 D.The definition(定义定义)of cloningPara 5 E.The effect of cloning in society探究活动二 Scanning(detailed reading)What is cloning?Para 1 The definition of cloning Cloning is a way of making an exact copy
6、of another animal and plant.1.What are the major uses of cloning?Firstly,commercial Secondly,research 2.When was the cloning of Dolly the sheep born?3.Is cloning animals straightforward or complicated?Para 2 in 1996The major uses and procedures of cloningIt is complicated.somatic cellembryothe carri
7、er of the clonenucleusegg celllamb nucleusFemale sheep AFemale sheep BFemale sheep C Have you got the following information?1.How many sheep were needed to clone Dolly the sheep?2.The nucleus from one sheep and the egg cell from another sheep are joined using _.3.The lamb（羊羔）is the clone of sheep _.
8、ThreeelectricityBThe problem of Dolly Dolly had become_ and developed the illness of _.She lived only _,half the length of the _ sheep.The effect of cloning in society It raised a storm of _and had a great impact on _and _.It opened everybodys eyes to the possibility of using cloning to cure _ and e
9、ven producing _.Para 4Para 3originalobjectionsthe mediapublic imaginationserious illnesseshuman beingsseriously illsix and a half yearsmuch older animals True or false:1.People feared that cloned Hitler would do harm to the world.2.Religious leaders agree to clone great people.3.All the research int
10、o human cloning will be forbidden.4.Some countries will use cloning in a wise way.Para 5The attitudes towards cloningTTFFReligious leaders raised moral questions.Some governments forbade research into human cloning.A.Negative(be against it)B.Objective(not mentioned)C.Positive(be in favor of it)探究活动三
11、探究活动三1.What is the writers attitude towards cloning?Fill in the blanks according to the text.Cloning is a way of making an exact copy of another animal or plant.Cloning plants is 1_ while cloning animals is a difficult task to2 _.But in 1996 the determination and patience of the scientists3 _ _ with
12、 a4 _-the cloning of Dolly.However,because of Dollys serious illness,cloning scientists were5 _ _.On the other hand,Dollys appearance raised a storm of6 _.Some countries even7 _ research into human cloning.straightforwardundertakepaid offbreakthrough cast downobjectionsforbadeTalking bar：Speak out y
13、our opinions about cloningWhether cloning is helpful or harmful to us?A reporter from“Approaching Science”is interviewing three famous scientists about it.Key words and expressions commercial plants(plants of similar quality for sale)research on/cure illness/save endangered animals illnesses of older animals./die younger/evil leaders/moral objections Draw a conclusion:Cloning has two aspects.If we use it in a correct way it can benefit us.But if it is used in an evil way it can cause much trouble.We should use cloning in a wise way!课下作业预习预习reading部分知识点部分知识点课堂总结和小组评价：
