Unit2-Cloning教學(xué)設(shè)計(jì)

1、Unit2 CloningReading: CLONING: WHERE IS IT LEADING US? 教學(xué)設(shè)計(jì)西安市第十九中學(xué)張媚一、教材分析本單元以Cloning為話題，旨在通過(guò)單元教學(xué)，使學(xué)生了解克隆技術(shù)的優(yōu) 缺點(diǎn)，學(xué)會(huì)表達(dá)和支持個(gè)人觀點(diǎn)，能用所學(xué)的有關(guān)Cloning的詞匯去表述自己對(duì) 這一新技術(shù)的觀點(diǎn)和看法?！遍喿x" （Reading）部分提供的材料 CLONING: WHERE IS IT LEADING US?是一篇介紹克隆技術(shù)的說(shuō)明文，具體介紹了植物與動(dòng)物克隆的區(qū)別，多利羊 的誕生與死亡及由此引發(fā)的爭(zhēng)論。幫助學(xué)生進(jìn)一步認(rèn)識(shí)克隆的意義在于解決醫(yī)學(xué) 上的難題，為人類(lèi)服

2、務(wù)。從話題內(nèi)容上分析，Warming Up與Reading相一致,從教材份量來(lái)說(shuō)，可將 Warming Up和Reading整合在一起，設(shè)計(jì)成一節(jié)任務(wù)型 “閱讀課（精讀課）”。二、學(xué)情分析我所帶的兩個(gè)班級(jí)的學(xué)生英語(yǔ)基礎(chǔ)一般，平時(shí)較少閱讀科學(xué)題材的文章，知識(shí)面相對(duì)狹窄，閱讀理解這篇文章還是有一定難度。 但學(xué)生的好奇心和學(xué)習(xí)接受 能力比較強(qiáng)，可以布置學(xué)生課前上網(wǎng)或去圖書(shū)館找出一些有關(guān)克隆的資料，并與多媒體相結(jié)合簡(jiǎn)單介紹克隆及克隆技術(shù)的一些知識(shí)，讓學(xué)生有了一定的知識(shí)準(zhǔn)備 以利于很好的理解課文。三、設(shè)計(jì)理念及教學(xué)目標(biāo)這節(jié)課的主要目的是培養(yǎng)學(xué)生跳讀和細(xì)讀的閱讀技巧， 使學(xué)生學(xué)會(huì)準(zhǔn)確分析 閱讀問(wèn)題，懂得從

3、文章中找到關(guān)鍵句子攝取必要的信息，找出正確的答案。我運(yùn) 用多媒體和學(xué)生搜索材料主動(dòng)參與學(xué)習(xí)相結(jié)合， 設(shè)計(jì)了表格、問(wèn)答題、判斷題和 信息整理題。這不僅提高學(xué)生的閱讀技巧，也教會(huì)學(xué)生怎樣處理不同的閱讀問(wèn)題。四.教學(xué)目標(biāo) Teaching goals1. Target language 目標(biāo)語(yǔ)言a.重點(diǎn)詞匯和短語(yǔ)clone , commercial , producer , undertake , arbitrary , object , forbid , ac cumulate , cast down , object to , the media , in favor ofb. 重點(diǎn)句子It i

4、s a way ofThe fact is thatThe question that concerned all scientists were:2. Ability goals 能力目標(biāo)Enable the students to describe cloning: What is the advantages of cloning ? What is the problems or dangers of cloning ? What is your opinion of cloning ?3. Learning ability goals 學(xué)能目標(biāo)Help the students le

5、arn how to describe cloning.Teaching important points教學(xué)重點(diǎn)How to describe cloning.Teaching difficult point教學(xué)難,點(diǎn)Help the students analyze the writing techniques of the article.Teaching methods 教學(xué)方法Skimming, task-based method and debate method.Teaching aids教具準(zhǔn)備A recorder, a projector and some slides.Te

6、aching procedures & ways教學(xué)過(guò)程與方式Step 1 Lead-in （3 分鐘）Show three cartoon pictures about cloning to arise students' interest5, then raise the question:1. What is cloning?2. Do you want to be cloned or not? why?通過(guò)展示圖片和提問(wèn)，激發(fā)學(xué)生對(duì)克隆技術(shù)的興趣和好奇心，啟發(fā)學(xué)生預(yù)測(cè)課文的內(nèi)容，以便通過(guò)閱讀驗(yàn)證自己的推測(cè)。Step 2 Warming up （1 分鐘）Show the

7、 picture of Dolly the sheep（ 多莉羊）on the screen. Get studen ts to look at the picture and discuss:How does Dolly differ from other sheep?進(jìn)一步營(yíng)造寬松和活躍的課堂氣氛，充分調(diào)動(dòng)學(xué)生學(xué)習(xí)的積極性，即或?qū)W生的 思維，培養(yǎng)他們發(fā)散思維能力。這就為進(jìn)一步的學(xué)習(xí)做足了鋪墊。Step 3 Reading （共 26 分鐘）Get the students to comprehend the passage quickly and accurately and meanwh

8、ile help the students form a good habit of reading Task1.Skimming （6 分鐘）Ask students to skim the passage and get the main idea of each paragraph.Para 1 The definition of cloning.Para 2 The two major uses and the procedure of cloning.Para 3 The problem of Dolly.Para 4 The impact of cloning in society

9、.Para 5 People ' reaction to cloning. .Task2. Detailed reading （18 分鐘）Ask the students to read each paragraph of the text carefully and answer the following questions.（由于文章較長(zhǎng)信息點(diǎn)較多，在這里采取分組合作模式，目的是讓學(xué)生在短時(shí)間內(nèi)快速捉和了解文章關(guān)鍵信息，把全班學(xué)生分成小組，每個(gè)小組有三位成員和一位組長(zhǎng)，小組共同完成以下的任務(wù)，組長(zhǎng)整 理歸納組員的信息并陳述結(jié)果。)Para 1 The definition of

10、 cloning.True or false:1. Cloning is a new topic.2. When a gardener takes cuttings from growing plants to make new ones, we say the new ones are natural cloning.3. Cloning happens both in plants and in animals.Para 2 The two major uses and the procedure of cloning.1 .The word “ straightforward "

11、; means.A. uncomplicatedB. honest C. rankD. difficult2 .The cloning of Dolly the sheep succeeded because.A. its easier to clone a sheep than otherB. the scientists were determined and worked hard with patienceC. the scientists were rewarded and got lots of moneyD. many other attempts to clone mammal

12、s failed3. The lamb is the clone of the cell from sheep B because.A. it provides the egg cellB. it gives birth to the lambC. it provides the nucleusD. it is a female sheepPara 3 The problem of Dolly.At first, the fact that Dolly seemed to developed was .Then, came the disturbing news that Dolly beca

13、me.Altogether Dolly lived, half the length of the life of .Para 4 The impact of cloning in society.1. On the other hand, Dolly ' appearance andthe media and public imagination.2. The word " controversial “ in paragraph 4 probably means.A. complicatedB. arguable C. importantPara 5 People 

14、9; sreaction to cloning.CharacterTheir own reactionEvil leader:Religious leaders:Government:Some countriesOther countries.Task3. Further comprehension (2 分鐘)The writer 'attitude towards cloningA. Objective (be fair)B. Negative (be against it)C. Positive (be in favor of it)Because授課中始終圍繞讀， 以 list

15、ening, skimming, careful reading 和 compre hending等多種方法漸進(jìn)式導(dǎo)入學(xué)生去理解課文和解決課標(biāo)閱讀任務(wù)。Detailedreading過(guò)程中，課堂采用循序漸進(jìn)式閱讀教學(xué)促使學(xué)生積極配合，使學(xué)生對(duì) 文章中的一些細(xì)節(jié)知識(shí)有好的把握，對(duì)作者的寫(xiě)作態(tài)度有深層次的理解。Step4. Retelling the text （7 分鐘）Cloning is a way of an exact copy of another animal or plant. Cloning has two uses. Firstly, gardeners use it to p

16、roduce plants. Secondl y, it is for medical research on animals. Cloning plants is straightfor ward but the cloning of animals is more. The procedure is diffic ult to . In 1996, scientists succeededin Dolly the sheep. Th en came the disturbing news that Dolly was ill. Dolly lived for si x years and

17、a half, Dolly ' asppearance raised a storm of. Governm ent became nervous and many research into human cloning. Scientists still whether cloning will help or harm us and where it is leading us.對(duì)課文進(jìn)行及時(shí)概括能夠幫助學(xué)生全面理解整篇文章大意，在閱讀的的基礎(chǔ)上 進(jìn)行語(yǔ)言輸出，使學(xué)生學(xué)會(huì)用英語(yǔ)對(duì)克隆進(jìn)行描述，從而達(dá)到學(xué)以致用的效果， 提高學(xué)生學(xué)習(xí)英語(yǔ)的積極性。Step5. Summary （2 分

18、鐘）As a coin has two sides, everything has two aspects. On the one han d, if cloning is used in a correct way it can bring much convenience to us. On the other hand, if cloning is used in an evil way it can ca use much trouble. Therefore, we should use cloning in a wise way.對(duì)整篇文章進(jìn)行小結(jié)使學(xué)生清楚的認(rèn)識(shí)到克隆的利弊關(guān)系，從而以正確的態(tài)度 去對(duì)待，使克隆技術(shù)能更好服務(wù)于人類(lèi)。Step6. Homework （1 分鐘）