选修8Unit2_Cloning

Unit 2Cloning[单词拼写应用]核心单词1．altogether ad v.总共；完全地2．forbid v t.禁止；不准3．obtain v t.获得；赢得4．owe v t.欠(账、钱、人情等)；归功于……5．shortly ad v.立刻；不久6．bother v t.打扰v i.操心n．烦扰7．strike v t.& v i.打；撞击；罢工n．罢工8．drawback n．缺点；不利条件9．undertake v t.着手；从事；承担10．breakthrough n．突破11．retire v i.退休；离开12．resist v t.抵抗；对抗[语境运用]用所给词的适当形式填空。

1．We are supposed to_undertake (undertake) the responsibility to lead alow-carbon lifestyle，which is of great significance.2．Nowadays，energy can be_obtained (obtain) through various sources such as oil，coal，natural gas，solar heat，the wind and ocean tides.3．Our school is a non-smoking school.So smoking is_forbidden ( forbid ) here.4．Had I realized you were busy，I wouldn't have_bothered(bother) you with my questions.5．But just as a coin has two sides，Internet has its own drawbacks (drawback)，which should not be neglected.6．Having_retired(retire) from business，he now occupies himself with his garden.拓展单词1．differ v i.不同；相异→different adj.不同的→difference n．差异；不同2．complicate v t.使复杂化→complicated adj.复杂的；难懂的→complication n．复杂3．correct adj.正确的v．改正→correction n．改正；纠正；修正4．object v i.反对；不赞成→objection n．不赞成；反对；异议5．accumulate v t.& v i.积累；聚积→accumulation n．积累；增加6．assume v t.假定；设想→assumption n．假定；设想7．popular adj.流行的；通俗的；受欢迎的→popularity n．受人喜爱；流行8．decorate v．装饰；装修→decoration n．装饰；装修9．reason n．原因；道理→reasonable adj.合情理的；讲道理的；公道的10．exact adj.精确的；准确的→exactly ad v.精确地；准确地[语境运用]用所给词的适当形式填空。

⾼考英语⼀轮复习话题37克隆（Unit2Cloning）新⼈教版选修8话题37 克隆（Unit 2 Cloning）晨读背诵When the media report on cloning in the news, they are usually talking about only one type called reproductive cloning. There are different types of cloning however, and cloning technologies can be used for other purposes besides producing the genetic twin of another organism.Scientists have been cloning animals for many years. In 1952, the first animal, a tadpole, was cloned. Before the creation of Dolly, the first mammal cloned from the cell of an adult animal, clones were created from embryonic cells. Since Dolly, researchers have cloned a number of large and small animals including sheep, goats, cows, mice, pigs ,cats, rabbits, and a gaur. All these clones were created using nuclear transfer technology.汉语⼤意：当媒体报道的克隆的消息，他们通常所说的只有⼀种称为⽣殖性克隆的类型。

选修8Unit 2 Cloning要点梳理高效梳理·知识备考●重点单词1．differ vi.不同；相异→different adj.不同的→difference n．不同，差异2．twin n．双胞胎之一；孪生儿之一 adj.成对的；成双的3．straightforward adj.简单的；直接的；坦率的4．undertake vt.着手；从事；承担→undertook(过去式)→undertaken(过去分词)5．breakthrough n．突破6．cast vt.扔；投；掷→cast/cast(过去式/过去分词)7．object vi.反对；不赞成→objection n．不赞成；反对；异议→objective adj.真实的；客观的；无偏见的8．obtain vt.获得；赢得9．attain vt.获得；达到(水平、年龄、状况等)10．forbid vt.禁止；不准→forbade(过去式)→forbidden (过去分词)11．accumulate vt.积累；聚积12．owe vt.欠(账、钱、人情等)；归功于……13．retire vi.退休；离开→retirement n．退休14．bother vt.打扰 vi.操心 n．烦扰15．strike vi. & vt.打；撞击；罢工→struck/struck (过去式/过去分词)16．vain adj.虚荣的；自负的；徒劳的17．resist vt.抵抗；对抗→resistance n．抵抗；对抗→resistant adj. 18．drawback n．缺点；不利条件19．feather n. 羽毛20．adore vt.崇拜；爱慕；喜爱●重点短语1．pay off得到好结果；取得成功；偿清2．cast down沮丧；不愉快3．object to反对4．in favour of 赞成；支持5．owe...to... 把……归功于……6．(be)bound to(to)．.. 一定或注定(做)……7．strike...into one’s heart 使……刻骨铭心8．from time to time 不时；偶尔9．bring back to life使复生；使复活10．in vain 白费力气；枉费心机11．in good/poor condition状况很好/坏；情况很好/坏12．have a great impact on对……有很大影响●重点句型1．Then came the disturbing news that Dolly had become seriously ill.之后传来了多莉得了重病的令人烦恼的消息。

选修 8 Unit2 Cloning(Reading) 讲课稿钟祥三中彭清莲一、教材剖析；1、教材简析：本课是人教版新教材选修 8 Unit2 Cloning(Reading) ，本课的中心话题是克隆。

本文详细介绍了植物与动物克隆的差别、多丽羊的出生与死亡及由此引起的争辩。

帮助学生进一步认识克隆的意义在于解决医学上的难题，为人类服务。

本节课是这篇阅读的第一节课，目的旨在让学生读懂文章的意思、认识文章的内容、掌握文章的中心。

经过阅读，让学生学习文章的内容、掌握文章的中心。

从而提高自己的阅读能力，要让学生学习认识克隆这门技术以及相关的争议。

2、教课目的：（知识目标、能力目标、德育目标）知识目标： (1) 学习、掌握相关说明文的体裁和构造。

(2) 在认知、理解课文的基础上，学会自主学习。

能力目标：（ 1）发展学生听、说、读、写的基本技术，提高阅读技巧，培育综合语言运用的能力；（2）能利用上下文猜想词义，同时能依据上下文线索展望下文的发展；（3）能依据所读资料运用适合语言进行简洁的沟通。

德育目标：经过本文激发学生勇于求知，探究科学神秘的踊跃学习态度。

使学生形成踊跃的感情态度，主动思想，勇敢表述，提高语言实质运用能力，同时，又使他们陶冶情操、拓展视线，开发思想能力，发展个性，提高人文修养，形成正确的价值观和人生观。

确定教课目的的依照：依据新课标要求，经过听、说、读、写四项基本语言技术的训练，使学生形成综合语言运用能力，激发学生的学习兴趣，为真切语言社交打基础。

别的，每一门课程都应该尽可能联合学科特色，把培育学生的感情消融到平时教育教课中。

3、要点与难点：（1）要点：1．认识科技说明文的文体特色并以此指导阅读；训练 skimming,scan ning,fast reading,careful reading 等阅读技术；2．对文章深层次的理解及细节的欣赏，认识及认识克隆技（2）难点：1. 阅读技术的训练；2．对科技说明文的鉴赏能力及事物的客观评论。

Unit 2 Cloning 词汇学习1．differ vi. 不同；相异different adj. 不同的有区别的相异的difference n. 不同；不同之处differ from... 不同于……differ in... 在……方面不同A differs fromB in...A与B在……方面不同A differs withB about/on/over... A与B就……意见相左be different from 与……不同make a/some/no difference tosb./sth.对某人/某物有/有些/没有影响或作用And everybody's preferences differ.而各人偏好又是千差万别。

Attitudes towards this hot topic differ widely.人们对此热点话题态度不一。

They differ in size but not in kind. 它们的区别只是大小不同而实质一样。

I differ with my classmates on that issue.我在这问题上与班里的同学意见相左。

Opinions on various social questions differ from person to person.有关各种社会问题的意见因人而异。

I cannot see where they differ from each other: to me they look exactly alike.我看不出他们彼此有什么不同，在我看来，他们确实很相像。

They differ with each other on moral standards.关于道德标准,他们的见解不同。

[即学即练](1)Men are all alike in their promises. It is only in their deeds that they ______.人在许诺时都一样，不同之处在于他们的行动。

人教版高中英语选修8《Unit2Cloning》教案人教版高中英语选修8《Unit 2 Cloning》教案【一】教学准备教学目标一、语言知识目标初步理解、掌握课文中关于克隆的词汇，学习分析课文中的长难句子。

二、阅读技能目标1. 能获取和处理文章中的主要信息。

2. 能够掌握文中出现的重要的语言知识三、学习策略目标掌握速读、略读、猜测词义等阅读策略。

四、情感态度目标让学生认识到克隆的利和弊。

五、文化意识目标了解克隆，正确地利用克隆技术来为人类服务。

教学重难点初步理解、掌握课文中关于克隆的词汇，学习分析课文中的长难句子。

教学过程Step 1 Daily reportOne student comes to the front and gives a report about advantages and disadvantages of science and technology.Step 2 leading-inThe teacher shows some pictures and starts a discussion about cloning.Step 3 SkimmingTask 1: What’s the main idea of the passage?Task 2: Match the main idea with each paragraphPara 1: A. People’s attitude towards cloning.Para 2: B. The problems of Dolly.Para 3: C. The impact of Dolly.Para 4: D. Two major uses and the procedure of cloning.Para 5: E. The definition(定义)of cloning.Step 4 ScanningTask 1. Look through Para 2 and answer the following questions.(1) What are the two major uses of cloning?(2) Which one is easier, to make plant clones or animal clones?Task 2. Look through Para 3 and fill in the chart.Task 3. Do the following translation and word guessing.(1). Translation:On the other hand, Dolly’s appearance raised a storm o f objections and had a great impact on the media and public imagination.(2). The word “controversial” in paragraph 4 probably means_________.A. complicatedB. arguableC. importantD. valuableTask4. Do the following Tor F questions based on Paragraph 5.1. People feared some evil leaders might use cloning to reach their goal.2. All the research into cloning will be forbidden.3. Religious leaders are in favor of human cloning.Step 5 Enjoy beautiful sentences1. Cloning plants is straightforward while cloning animals is very complicated.2. At last the determination and patience of the scientistspaid off.3. The fact that she seemed to develop normally was very encouraging.Step 6 Question and answerThis part is for students to find if they still have questions. If there is any, they can ask their classmates to help them.Step 7 QuizNote: This part is very challenging. In the picture there are five numbers. Students can choose their lucky number and answer questions. Most of the questions are based on what they have learned in class.Step 8. Test yourselfFill in the blank with proper words.Cloning is a way of _______ (make) an exact copy of another animal or plant. It has two major uses. One is _______ gardeners use it to produce plants. The ______ is that it is valuable for medical research on animals. ________, the process of cloning is difficult ___________ (undertake).The first successful clone, Dolly the sheep, made the whole _________ (science) world follow its progress, though it had ________ problems than the normal sheep. On the other hand, Dolly’s appearance _______ (raise) a storm of objections and had a great impact ______ the media and public imagination. Different people have different opinions on it. However, scientists still wonder ______ cloning will help or harm us and where it is leading us.Step 9 DebateTopic: Are you for or against cloning?课后小结HomeworkWrite a passage entitled My view on cloning.课后习题评测练习主要有两个。

Unit 2 Cloning【美文阅读】Pandas can be saved by cloning?从1998年中国科学院动物研究所首席科学家、动物克隆与受精生物学学科带头人陈大元首次正式提出克隆大熊猫到现在，整整16年过去了，陈老仍然执著于此。

然而保护大熊猫，究竟要不要通过克隆的方式呢？China has been exploring every possible means of saving giant pandas，one of the world's most endangered species，from becoming extinct，even if it means resorting to(诉诸) cloning them.Chen Dayuan，a senior scientist who specializes in cloning at the Institute of Zoology in the Chinese Academy of Sciences，introduced the idea of performing cloning techniques on giant pandas in 1998.Using initial funding of 100,000 yuan，Chen successfully produced blastocysts(胚泡) by transplanting the somatic nucleus from sample pandas into the egg cells of rabbits.The move was considered as one of the 10 biggest achievements of science and technology in 1999.It won an award of 6 million yuan and further funding of 5 million yuan for the project from the Ministry of Science and Technology.At first，two embryos were created from a surrogate mother(代母) cat who became pregnant after bei ng in­jected with a blastocyst，but the experiment was abandoned after the cat died.Chen and his team then experimented with surrogacy on black bears.After three years of effort，a black bear became pregnant and the shape of a fetus(胎儿) could be seen on an ultrasound scan(超声波扫描检查)．However，the research was stopped in 2005 because the fetus did not completely develop before the project's deadline.“Those who are against cloning have made their voices heard throughout the research project on cloning giant pandas.Some people believe cloning goes against nature，but it is actually a pioneering technology.If successful，it is a way to save endangered animals，”Chen said.Some scientists take a different view.“While I agree that research on cloning is meaningful，it is inappropriate to use giant pandas in this type of experiment.The number of pandas is limited and human beings have yet to master knowledge about pandas' pregnancy.Cloning would do little to save the species，”said Wang Dajun，a researcher at the School of Life Sciences，Peking University.In response，Chen said that he would continue his research.【诱思导学】1．Do you think pandas can be saved by cloning？Why?______________________________________________【答案】省略2．Why are some scientists against cloning pandas?______________________________________________【答案】Because they think cloning go against nature.Period ⅠPreviewing(教师用书独具)●教学目标本课时主要是通过学生对学案所给出的内容的学习，了解本课文中所出现的词汇，初步了解课文以及相关的背景知识，为下一堂课对课文的全面理解起到一个铺垫作用。

话题37 克隆（Unit 2 Cloning）晨读背诵When the media report on cloning in the news, they are usually talking about only one type called reproductive cloning. There are different types of cloning however, and cloning technologies can be used for other purposes besides producing the genetic twin of another organism.Scientists have been cloning animals for many years. In 1952, the first animal, a tadpole, was cloned. Before the creation of Dolly, the first mammal cloned from the cell of an adult animal, clones were created from embryonic cells. Since Dolly, researchers have cloned a number of large and small animals including sheep, goats, cows, mice, pigs ,cats, rabbits, and a gaur. All these clones were created using nuclear transfer technology.汉语大意：当媒体报道的克隆的消息，他们通常所说的只有一种称为生殖性克隆的类型。

然而有不同类型的克隆。

除了生产遗传双胞胎的另一生物体，克隆技术可以用于其它目的。