新人教版必修五英语1B8U2Reading课件

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? Unit2 Period1(第一课时)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 ： 培养学生的阅读能力学习目标：strawberry strawberry natural clones一株草莓依靠它沿地爬走”的匍匐茎,一年内就能长出数百株草莓苗natural clones一株草莓依靠它沿地爬走”的匍匐茎Clone Natural clone

2、Man-made cloneNatural clone is one that occurs from the “parent ” in a natural form of cloning without human help. Man-made clone is one that produced through human intervention(介入) .Information Clone Natural cloneMan-made clDollyTwinscactusDollyTwinscactus仙人掌每块落地就生根natural clones仙人掌每块落地就生根natural c

3、lonesnatural clonesThey are twins identical in sex and appearanceproducing from the same original egg.natural clonesThey are twins cman-made clonecman-made clone_ vi. 不同; 相异 adj. different adv. differently exact adj. 精确的; 准确的 adv._3. commercial adj.商业的;贸易的4. forbid vt. 禁止; 不准 过去式 _ 过去分词_5. _ n. (car

4、ry+er) 携带者; 搬运工. 6. straightforward adj.（straight+forward)简单的;直接的; 坦率的7.undertake vt. (under+take) 着手; 从事; 承担 过去式_过去分词_8. breakthrough n.(break+through) 突破9. object vi.反对; 异议 n. objection10. correct v. 改正; 纠正 n. _differexactlyforbade/forbadforbiddencarrierundertakenundertookcorrection预习导航_ vi. 不同; 相

5、异 adj. differe探究活动一. Skimming (Fast reading) Skim the passage and get the main idea of each paragraph.Para 1 A. The problems of DollyPara 2 B. The two major uses and procedures of cloningPara 3 C. The attitudes towards cloningPara 4 D. The definition(定义) of cloningPara 5 E. The effect of cloning in

6、society探究活动一. Skimming (Fast reading)探究活动二 Scanning (detailed reading) 探究活动二 Scanning What is cloning ?Para 1 The definition of cloning Cloning is a way of making an exact copy of another animal and plant.What is cloning ?Para 1 The de 1.What are the major uses of cloning? Firstly, commercial Second

7、ly, 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. 1.What are the major uses of somatic cellembryothe carrier of the clonenucleusegg celllamb nucleusFemale sheep A

8、Female sheep BFemale sheep C somatic cellembryothe carrier 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 _.ThreeelectricityB Ha

9、ve you got the following inThe 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 t

10、o cure _ and even producing _.Para 4Para 3originalobjectionsthe mediapublic imaginationserious illnesseshuman beingsseriously illsix and a half yearsmuch older animals Dolly had become_True or false:1. People feared that cloned Hitler would do harm to the world. 2. Religious leaders agree to clone g

11、reat people. 3. All the research into 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.True or false:Para 5The attitu A. Negative (be a

12、gainst it) B. Objective (not mentioned) C. Positive (be in favor of it)探究活动三1. What is the writers attitude towards cloning? A. Negative (be against it)探究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

13、animals is a difficult task to2 _. But in 1996 the determination and patience of the scientists3 _ _ with 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 i

14、nto human cloning.straightforwardundertakepaid offbreakthrough cast downobjectionsforbadeFill in the blanks according tTalking bar：Speak out your opinions about cloningWhether cloning is helpful or harmful to us? A reporter from “Approaching Science” is interviewing three famous scientists about it.

15、Talking bar：Speak out your opiKey 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 Key words and expressions com Draw a conclusion: Cloning has two