2014-2015學年高中英語 Unit 2 Cloning教學設(shè)計2 新人教版選修

《2014-2015學年高中英語 Unit 2 Cloning教學設(shè)計2 新人教版選修》由會員分享，可在線閱讀，更多相關(guān)《2014-2015學年高中英語 Unit 2 Cloning教學設(shè)計2 新人教版選修（19頁珍藏版）》請在裝配圖網(wǎng)上搜索。

1、 Unit 2 Cloning 第一部分 《金色教案》教學設(shè)計說明 About the topic and the structures 單元話題和結(jié)構(gòu) 本單元的中心話題是“克隆”?？寺∫鉃闊o性繁殖，克隆技術(shù)即無性繁殖技術(shù)。1997年英國羅斯林研究所實驗成功的克隆羊Dolly，是首次利用體細胞克隆成功的，它在生物工程史上揭開了新的一頁。通過本單元學習，學生可以了解什么是克隆、克隆的利弊以及對克隆技術(shù)的反思。 通過本單元的語言技能訓練，要求學生進一步熟悉和運用有關(guān)接受與拒絕、表揚與鼓勵、不關(guān)心的表達方式。 本單元語言功能項目是：接受、拒絕；表揚和鼓勵；漠然。 本單元語言結(jié)構(gòu)項

2、目是“復習同位語（詞語、短語和從句）”。 本單元還要求學生學習寫作“討論：議論文”。 《金色教案》教學設(shè)計在單元課時劃分上與課本保持一致，即“閱讀課、知識課、運用課三課時/三課型劃分”。但在實際教學過程中，建議教師依據(jù)學生基礎(chǔ)、教學條件、學校安排的因素，對課本、對《金色教案》教學設(shè)計重新劃分課時，裁剪、拼接使用提供的材料，以便“物盡所用”，達到最佳教學效果。教師也可以參照《金色教案》提供的“實際教學過程課時劃分建議”進行教學。 Period 1 Reading 閱讀課 Warming Up 課本通過展示克隆羊Dolly、人類雙胞胎、兩條模樣相同的小狗以及插枝繁殖的植物圖片作為導

3、入。要求學生以兩人小組形式展開討論，了解兩種不同的克?。鹤匀坏呐c人工的無性繁殖克隆。教師也可以采用本書的Warming up by leaning the word “clone” 進行熱身教學。 Pre-reading 課本要求學生提出有關(guān)克隆的問題，并列入表內(nèi)。表內(nèi)已提供了四個問題幫助學生思考，以便提出更多問題展開討論。這可以激發(fā)學生對克隆的興趣，為閱讀做好認識上和知識上的準備。表中有四個問題：什么是克?。靠寺∈侨绾萎a(chǎn)生的？人類可以從克隆中得到什么好處？克隆人將會帶來什么問題？這些問題旨在測試和誘發(fā)學生的想象力和判斷力，并引發(fā)更多的思考。教師也可以采用本書的Pre-reading by

4、questioning and answering進行預讀教學。 2 / 19 Reading 介紹了植物與動物克隆的區(qū)別、克隆羊Dolly的誕生與死亡、由此引發(fā)的爭論。幫助學生進一步認識克隆的意義在于解決醫(yī)學上的難題，為人類服務(wù)。教師可以參考使用本書提供的下列程序進行本節(jié)閱讀教學： Reading aloud to the recording; Reading for forms; Reading for the type of writing and summary of CLONING：WHERE IS IT LEADING US? ;Copying and makin

5、g sentences; Reading and transforming; Reading the text again to draw a diagram of it and retell the story with your own words; Closing down by learning more about Dolly Period 2 Learning about language 知識課 Learning about Language 分為詞匯和語法兩方面的訓練。Discovering useful words and expressions是本單元的詞匯練習

6、題; Discovering useful structures是本單元的語法練習題。通過本單元的學習，要求學生熟練掌握并運用名詞性從句中同位語從句的用法。教師應(yīng)緊密結(jié)合教材，根據(jù)教學大綱進行輔導講解,應(yīng)充分利用教材和本書中提供的大量的系統(tǒng)性、針對性強的各種素材,采用講解、討論、 答疑等方式培養(yǎng)學生運用所學語法知識與技能解決實踐問題的能力。另外，學生應(yīng)重視自學和自學能力的培養(yǎng)，逐漸熟悉語法項目內(nèi)容，多看多練，以達到熟能生巧的目的。教師可以參考使用本書提供的下列程序進行教學：Warming up by reading aloud to the tape the text CLONING：WHER

7、E IS IT LEADING US? ； Learning about appositive；Building up on your word power；Discovering useful words and expressions；Discovering and distinguishing；Closing down by talking about cloning Period 3 Using language 運用課 Using Language 課本分兩部分。“Reading, discussing and writing” 中提供了一篇關(guān)于“恐龍的回歸”的閱讀材料，講述

8、了人類自開始克隆動物研究以來一直想要克隆已經(jīng)絕種動物的愿望，并指出克隆絕種動物的條件，從而得出結(jié)論：恐龍的重生僅僅是個夢想而已。閱讀文章后的問題充分利用學生的想象力，需要獨立思考獲得答案。同時提供了四種絕種不到一萬年，值得通過克隆恢復的動物的名稱及其絕種的年份，要求學生利用表格提供的信息選出最值得克隆的動物并給出充分的理由；最后要求寫成一份報 告。這項寫作富有挑戰(zhàn)性，需要學生大膽想象，以理服人?！癓istening and speaking”部分學生聽完一段關(guān)于克隆是否對動物殘忍的對話之后，首先交流聽力內(nèi)容，然后展開討論，讓學生發(fā)表自己的看法。這項練習不僅有助于提高學生的聽說

9、能力，更能激發(fā)他們對克隆動物健康的關(guān)注以及對克隆技術(shù)發(fā)展前景的再思考，具有現(xiàn)實意義。教師可以參考使用本書提供的下列程序進行教學：Warming up by reading aloud the text on page 11 to the tape；Reading for forms；Discussing about extinct animals；Listening and talking about cloning；Closing by looking and saying 實際教學過程課時劃分建議 Period 1 將Warming Up、 Pre-reading、Reading

10、和Comprehending整合在一起上一節(jié)“閱讀課”。 Period 2 將Learning about language 和Workbook中的 USING WORDS AND EXPRESSIONS、USING STRUCTURES 整合在一起上一節(jié)“語言知識課”。 Period 3 將Using language 設(shè)計為一節(jié)包括聽說讀寫單項技能或組合技能訓練的“綜合技能課（一）”。 Period 4 將Workbook 的READING AND LISTENING和TALKING整合在一起上一節(jié)“聽說課”。 Period 5 將Workbook 的LISTENING T

11、ASK、READING AND WRITING TASK和 SPEAKING TASK整合為一節(jié)“綜合技能課（二）”。 第二部分 教學資源說明 Section 1 Background 背景 圍繞單元話題“Festival around the world”，《金色教案》提供了幾則語言規(guī)范、短小精干的趣味性材料。這些材料既可以作為教師教學參考材料為教師所用，也可以直接或改寫、重組后作為課堂內(nèi)外的拓展性閱讀材料呈現(xiàn)給學生。 Section 2 Explanation 解析 重點針對“閱讀課型”中的課文難句，《金色教案》不僅提供了詳盡的，就句論句的解析和翻譯，而且還以解析的

12、焦點話題為線索，進行了一定的歸納、辨析和總結(jié)，以幫助教師更好地實施“語言形式”的教學。 Section 3 Vocabulary 詞匯 按照課本單元詞匯表順序，《金色教案》重點提供動詞、短語搭配的講解。所提供的例句，經(jīng)典、地道、實用、易懂，完全可以直接用于教學。 第三部分 教學測評說明 圍繞單元詞法、句法項目，《金色教案》提供了長短不一的“單元教學測評”，并備有參考答案供教師使用。有些測評題目直接源于歷年高考試卷，更具有說服力和實用性。 Part 1 Teaching Design 第一部分 教學設(shè)計 Period 1 A sample lesson pla

13、n for reading (CLONING：WHERE IS IT LEADING US?) Introduction In this period, after the warming up, students will first be guided to pre-read the text by questioning and answering. Then they shall read aloud to the recording, read for forms, read for the type of writing and summary of CLONING：WHER

14、E IS IT LEADING US?. The students will be asked to copy useful expressions and make sentences, read and transform and read the text again to draw a diagram of it and retell the story with your own words. The period will end in students learning more about Dolly. Objectives To help students unders

15、tand the text’s forms and contents and learn about cloning To help students communicate on the topic in focus with the words, expressions and structures learned in this unit Focus Words clone， differ， undertake， cast，forbid，accumulate， retire，bother， resist， restore，obtain Collocations obje

16、ct to，in favour of，pay off Patterns 1. It also happens in animals when twins identical in sex and appearance are produced from the same original egg. 2. Firstly, gardeners use it all the time to produce commercial quantities of plants. 3. Then came the disturbing news that Dolly had be

17、come seriously ill. 4．The question that occurred to the scientists was：“Would this be a major difficulty for all cloned animals？” 5．Newspapers told stories of evil leaders hoping to clone themselves and religious leaders raised moral questions. Aids Multimedia facilities, tape-recorder, photo

18、s, diagrams Procedures 1. Warming up by leaning the word “clone” Scientist in Scotland grows "impossible" sheep from one cell of another sheep. clone n. 1. A cell, group of cells, or organism that is descended from and genetically identical to a single common ancestor, such as a bacterial c

19、olony whose members arose from a single original cell. 2. An organism descended asexually from a single ancestor, such as a plant produced by layering or a polyp produced by budding. 3. A DNA sequence, such as a gene, that is transferred from one organism to another and replicated by genetic engin

20、eering techniques. 4. One that copies or closely resembles another, as in appearance or function: "filled with business-school clones in gray and blue suits" Michael M. Thomas. v. cloned, cloning, clones 1. To make multiple identical copies of (a DNA sequence). 2. To create or propagate (an org

21、anism) from a clone cell: clone a sheep. 3. To reproduce or propagate asexually: clone a plant variety. 4. To produce a copy of; imitate closely: "The look has been cloned into clich" Cathleen McGuigan. 2. Pre-reading by questioning and answering What is cloning? We define cloning as product

22、ion of a cell or organism with the same nuclear genome as another cell or organism. Cloning is the process of creating an identical copy of an original. A clone in the biological sense, therefore, is a single cell (like bacteria, lymphocytes etc.) or multi-cellular organism that is genetically id

23、entical to another living organism. Sometimes this can refer to "natural" clones made either when an organism reproduces asexually or when two genetically identical individuals are produced by accident (as with identical twins), but in common parlance the clone is an identical copy by some conscious

24、 design. Also see clone (genetics). The term clone is derived from the Greek word for "twig". In horticulture, the spelling clon was used until the twentieth century; the final e came into use to indicate the vowel is a "long o" instead of a "short o". Since the term entered the popular lexicon in

25、 a more general context, the spelling clone has been used exclusively. 3. Reading aloud to the recording Whole language teachers affirm that reading aloud teaches you the students about language in a way that silent or independent reading never can. Reading aloud to the tape helps you the student

26、s develop and improve language skills -- reading, writing, speaking, and listening. And since you the students listen on a higher level than you read, listening to other readers stimulates growth and understanding of vocabulary and language patterns. So why not hurry to listen and read to the tape-

27、recording of the text we are going to learn today? 4. Reading for forms Read the text again to: cut/ the sentence into thought groups, blacken the predicates, darken the connectives and underline all the useful expressions. 5. Reading for the type of writing and summary of CLONING：WHERE IS IT L

28、EADING US? Determining the type of writing will help you determine the author’s topic (subject), purpose (why he is writing), style (how he should write) and tone (his attitude toward his subject - supportive, condeming, objective, etc.) It is important to find main ideas when reading. Main

29、ideas help you remember important information. The main idea of a paragraph tells the topic of the paragraph. The topic tells what all or most of the sentences are about. The other sentences in the paragraph are called details. Details describe or explain the main idea. Read the text to find the mai

30、n idea. CLONING：WHERE IS IT LEADING US? Type of writing: an expository writing Paragraph 1: What is cloning? It is a way of making an exact copy of another animal and plant. Where does it happen? This happens in plants when gardeners take cuttings from growing plants to make new ones，and wh

31、en small parts of a plant are taken/ and/ grown/ in a laboratory．It also happens in animals when twins identical in sex and appearance are produced from the same original egg. The fact is that they are natural clones of each other． Paragraph 2: What are the two uses of cloning? Firstly, gardener

32、s use it all the time to produce commercial quantities of plants. Secondly, it is valuable for research on new plant species and medical research on animals. What is the procedure of cloning Dolly? The procedure works like this： 1. Female sheep A provides an egg cell. 2. The nucleus is removed

33、 from the egg cell. 3. The egg cell is ready for a new nucleus. 4. Female sheep B provides a somatic cell for the clone. The nucleus of this cell contains all the genes needed to produce a new sheep. 5. The nucleus is taken out of the somatic cell. 6. The nucleus from sheep B and the egg

34、cell from sheep A are joined using electricity. 7. The cell divides and grows into an embryo. 8. The embryo is put into female sheep C. 9. The lamb is the clone of the donated cell from Sheep B which provided the nucleus. Paragraph 3: What is the progress of the first successful clone，Dolly th

35、e sheep? She seemed to develop normally．Then Dolly had become seriously ill. Dolly lived for six years，half the length of the life of the original sheep. Dolly successfully produced a lamb in a natural birth． Paragraph 4: What did Dolly’s appearance raise? Dolly’s appearance raised a storm of o

36、bjections and had a great impact on the media and public imagination． Paragraph 5: What are governments and countries attitudes towards cloning? Governments became nervous and many forbade research into human cloning. Some countries such as China and the UK continued to accumulate evidence of

37、the abundant medical aid that cloning could provide. 6. Copying and making sentences You are asked to copy all the useful expressions into your notebook after class as homework. You may make your own sentences with each of these expressions. Collocations from CLONING：WHERE IS IT LEADING US? a w

38、ay of…一種……的方法, make an exact copy of…生產(chǎn)與原型完全相同的……, grow… in a laboratory在實驗室里種植……, identical in sex and appearance性別和相貌相同的,be natural clones of each other自然克隆現(xiàn)象, have two major uses有兩大用途, all the time 一直, produce commercial quantities of… 生產(chǎn)大量的供商用的……, research on…在……方面的研究, the cloning of animals克隆

39、動物, undertake a procedure處理程序，attempts to do …嘗試做……, the determination and patience of…，……的決心和耐心，be rewarded, 得到回報, with a breakthrough有一個突破, work like this程序如下, follow the progress of…關(guān)注……的成長, develop normally正常的成長, the disturbing news that………的壞消息，become seriously ill病重, be cast down to do…

40、很沮喪地做……, affect other species 影響其他的物種, cloned mice克隆鼠, occur to…浮現(xiàn)在……的腦海里, a major difficulty for…一個……的主要困難, half the length of the life of ………的壽命的一半, despite the problems盡管有這些問題, produce a lamb生產(chǎn)了一只小羊, in a natural birth自然生產(chǎn)的方式, on the other hand另一方面, raise a storm of objections引起了一陣強烈的反對, hav

41、e a great impact on… 對……產(chǎn)生了巨大的影響, become controversial引起了爭議, open everybody’s eyes to…使大家明白 , use… to cure serious illnesses利用……來治療重病, produce human beings克隆人類, tell stories of… 報道……, clone themselves 克隆他們自己, become nervous 開始惶恐不安, forbid research into… 禁止……的研究, accumulate evidence of… 收集……的證據(jù) 7

42、. Reading and transforming CLONING：WHERE IS IT LEADING US? What is cloning? Cloning is a way of making an exact copy of another animal and plant. What are the two major uses of cloning? Firstly, gardeners use it all the time to produce commercial quantities of plants. Secondly, it is valuable f

43、or research on new plant species and medical research on animals. What is the progress of Dolly the sheep? She seemed to develop normally in the beginning. Then Dolly had become seriously ill. Dolly lived for six years，half the length of the life of the original sheep. What did Dolly’s appearanc

44、e raise? Dolly’s appearance raised a storm of objections and had a great impact on the media and public imagination． How did governments react to the technology of cloning? Governments became nervous and many forbade research into human cloning. 8. Reading the text again to draw a diag

45、ram of it and retell the story with your own words Writers structure, or organize, their writing in many different ways. Recognizing the way in which a text has been organized will help you understand its meaning more fully. CLONING：WHERE IS IT LEADING US? a way of making an exact copy of

46、another animal and plant Cloning’s two major uses: using it to produce commercial quantities of plants; valuable for research on new plant species and medical research on animals Would Dolly’s illnesses be a major difficulty for all cloned animals? Dolly’s appearance raising a storm of objection

47、s Scientists still wondering whether cloning will help or harm us and where it is leading us. 9. Closing down by learning more about Dolly To end this class, let’s get to know more about Dolly. Celebrity Sheep Has Died at Age 6 Dolly, the first mammal to be cloned from adult DNA, was put

48、down by lethal injection Feb. 14, 2003. Prior to her death, Dolly had been suffering from lung cancer and crippling arthritis. Although most Finn Dorset sheep live to be 11 to 12 years of age, postmortem examination of Dolly seemed to indicate that, other than her cancer and arthritis, she appeared to be quite normal. The unnamed sheep from which Dolly was cloned had died several years prior to her creation. Dolly was a mother to six lambs, bred the old-fashioned way. 希望對大家有所幫助，多謝您的瀏覽！