人教版高中英语选修八unit2 Cloning

选修8 Unit 2 Cloning基础操练Ⅰ. 单词拼写1．It is (合情理的) to assume that he knew beforehand that this would happen.2．20 years ago, because of the (保守的) views of her parents, she got married to a man against her will.3．When the football match was over, he lay on the playground, 不能) to move.4．He was cast down when the (程序) he had used to produce a mammal clone ended in failure.5．I didn’t know anything about any of the books so my choice was quite(任意的). 6．Mr Zhang, who had completed 40 years of teaching, (退休) from teaching last month because of ill health.7．The old lady gave away an impressive collection of oil paintings she had (积累) to the national art gallery.8． In Britain education is (义务的) for all children between the ages of 5 and 16. 9．Despite the fact that he’s fed up with too many rules and (规章), he has to obey all of them.10. Her books have gained in (受欢迎) with teenagers in recent years.11. She couldn’t (忍住) laughing when she saw the young man.12. To say that this law will not affect our profits is to talk (胡说).13. The doctor explained that this was a (复杂的) procedure that he should considercarefully.14. It is reported that scientists have achieved a major (突破) in the treatment of thistype of cancer.15. The old painting was damaged in the flood and had to be (修复).16. I knocked at the door loudly in the (徒劳的) hope that someone might answer.17. After she’d got over (=overcome) her (开始的) shyness, she became very friendly.18. The film was highly praised, but was not a (商业的) success.19. The President returned to work (不久) after his operation.20. Your report is good and I’ve made only a few small (修改) to it.Ⅱ. 用方框内所给短语的适当形式填空pay off; cast…down; be bound to; strike…into one’s heart;from time to time; have a great impact on; in poor condition;in favour of; bring…back to life; owe…to21. If you take a job as a journalist, it goes without saying (不言而喻) that __________________you’ll have to work at weekends.22. The good news, however, ___________ fear of the enemies andthey immediately fled in all directions.23. I _______________________ all my debts by the end of next year.24. He felt a bit ______________________ when he failed his final physics exam.25. He turned down a university appointment _______________________ a political career.26. There _____________________ be changes when the new system is introduced next year.27. The leaning tower with a history of hundreds of years is _________________________ and badlyneeds repairing.28. People in the flood-stricken areas said that they ________________ a great deal _____________the PLA soldiers for their rescue work.29. The computer, as is known to all, has __________________________ modern life.30. Don’t bother yourself about cloning my pet cat. I won’t expect to ________ it . Ⅲ. 完成句子31. Cloning scientists ___________________________________ that Dolly’s illnesses were moreappropriate to a much older animal. (cast)研究克隆的科学家们很沮丧地发现，多莉得的病更容易发生在年老的羊身上。

Unit 2Section II Learning about Language栏目导航课堂深度拓展0_课末随堂演练课后限时作业Q课堂深度拓展|考点语法细解-同位语从句■一、同位语从句的引导词■引导同位语从句的词语通常有连词(that,whether)＞连接代词和连接副词等。

■1 .由that引导■©We heard the news that our team had won.■我们听到消息说我们队赢了。

；；：■②They were worried over the fact that you were■ (3)The news that we are having a holiday tomorrow is not true.■明天放假的消息不实。

；；；；；■④Tve come to the conclusion that it was unwise to do that.■我得出结论这样做是不明智的。

；；■⑤The fact that the money has gone does not mean it was stolen.-那笔钱不见了这一事实并不意味着是被偷了■【注意】在某些名词(如demand,wish,suggestion,resolution^) 后面的同位语从句要用虚拟语气。

女口：■©They were faced with the demand that this tax (should) be abolished.■他们面对废除这个税的要求。

；：；■©They expressed the wish that she (should) accept the award.■他们表示希望她接受这笔奖金。

■©There was a suggestion that Brown (should ) be dronned from the team.■2•由whether 引导■©There is some doubt whether he will come. ■他是否会来还不一定。

人教版高中英语选修8《Unit 2 Cloning》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: Whats the main idea of the passage? Task 2: Match the main idea with each paragraph Para 1: A. Peoples 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, Dollys appearance raised a storm of 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 scientists paid 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, Dollys 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 CloningThe First Period warming upAims1. Talk about cloning2. Practice expressing and supporting an opinionContentsTask one: Looking and speakingIn pairs, look at the pictures and discuss which ones are natural clones and which ones are man-made. Explain how they differ.A.Dolly the sheepB. A strawberry plantC.TwinsD. Identical dogsTask two: Questions about cloningWhat is a clone?How is a clone produced?What benefits can humans gain from cloning?What problems may arise when humans are cloned?Task three: Free talkIn pairs, discuss what you understand about cloning, then list the questions you want to find out. Share your lists with one another.1. Should we clone human?2. Could cloning replace sex as the means of creating new human life?3. Could a parent clone a child who is dying of a terminal illness?The Second Period ReadingAims:1. Help the Ss to know how to describe cloning and how to catch the details of the text.2. Activate the Ss to show their opinions about the cloning and enable the Ss to write and article on this debate.Contents:Leading in by revision.Task one: Fast readingWhat is a clone?Show the following.1. Cloning means making a copy of an animal or a plant. (F. e xact… another)2. Gardeners can make a lot of money by cloning plants.(T.)3. Cloning animals is as complicated as cloning plants.(F. more than)4. Dolly the sheep was the first successful clone of a mammal. (T.)5. Natural clones happen in animals as well as in plants.(T)Task two: Careful readingRead the text again, try to answer the following questions and find out the main idea of each paragraph .Questions:1. What’s the main idea of the text?2. How many years did the sheep that donated the somatic cell most probably live?3. Why did the Cloning of Dolly the sheep succeed?4. What does the word ‘straightforward’ mean in the second paragraph?5. What is the writer’s attitude toward cloning in this passage?The main idea of each paragraph:Para. 1 Cloning is a way of making an copy of another animal and plant.Para. 2 Cloning has two major uses.Para. 3 The problems of Dolly.Para. 4 The effect of Dolly.Para. 5 It is forbidden to clone human being.Task three: Notes for debating: Should we use cloning?Argument for cloning:Cloning will be beneficial to humansWe could use cloning to cure illnesses.Arguments against cloning:healthy risks form mutation of genesemotional risksagainst naturerisk of abuse of the technologyCloned animals get ill and die quite young;The Third Period Language PointsAims:1. Enable the Ss to grasp the words of cloning.Get the Ss to master some useful expressions.Contents:1. differ v.1) “To be dissimilar or unlike in nature, quality, amount, or form”eg：Ambition differs from greed.2) “To be of a different opinion; disagree”eg：The critic differed with the author on several facts.2. exact adj. “Strictly and completely in accord with fact; not deviating from truth or reality”eg：an exact account; an exact replica; your exact words.3. commercial adj. 1) “Of or relating to commerce” 2) “Engaged in commerce’eg：a commercial loan; a commercial attaché; a commercial trucker.4. straightforward adj. 1) “honest’ 2) “easy to understand”eg: a ~ explanation; written in ~ language; a ~ problem in algebra5. procedure n.1) ‘A manner of proceeding; a way of performing or effecting something’eg：complained to the manager, and by this procedure got the money back.2) “A series of steps taken to accomplish an end”6. undertake v.1) “To take upon oneself; decide or agree to do”eg：undertake a task.2) “To pledge or commit (oneself) to’eg：undertake oneself to care for an elderly relative.7. breakthrough n.1) “An act of overcoming or penetrating an obstacle or restriction.”2) ‘A military offensive that penetrates an enemy's lines of defense’eg: a ~ in cancer research8. disturb v. “break the quiet, calm and peace’eg: She opened the door quietly so as not to disturb the sleeping boy.Don’t ~ the papers on my desk.9. arbitrary adj.1) “Determined by chance, whim, or impulse, and not by necessity, reason”eg：stopped at the first motel we passed, an arbitrary choice; arbitrary division of the group into halves.2) “Based on or subject to individual judgment or preference”eg：The diet imposes overall calorie limits, but daily menus are arbitrary.10. altogether adv.1) “Entirely; completely; utterly”eg：lost the TV picture altogether; an altogether new approach.2) “With all included or counted; all told”eg：There were altogether 20 people at the dinner.11. objection n. “The act of objecting”eg: He has a strong ~ to getting up early.~s to the plan will be listened to sympathetically.12. media n. 媒体eg: The running for president drew the ~’s attention.Now the press is an useful media.13. moral adj.1)“Of or concerned with the judgment of the goodness or badness”eg：moral scrutiny; a moral quandary.2) “Teaching or exhibiting goodness or correctness of character”eg：a moral lesson.14. accumulate v. “To gather or pile up”eg: By buying ten books every month, he soon ~d a library.Dust soon ~s if the room is not swept.15. forbid v.1) “To command (someone) not to do something”eg：I forbid you to go.2) “To command against the doing or use of (something); prohibit”eg：forbid smoking on trains.The Forth period Learning about language and Using languageAims:Let the Ss know more about the cloning.Improve the students’ listening, reading and writing ability.Contents:Task one: gap fillingplete the sentences using suitable words or phrases from the prevision sections.2.Rewrite the sentences using words of similar meaning to replace the underlined words.e the words and phrases below to fill in the passage.Task two: reading and discussing1.Read the passage and answer the questions.2.In pairs, discuss which extinct animals described below (which died out less than 10,000 yearsago) are worth restoring by means of cloning.a. Auroch (1627)b. Dodo bird (1755)c. Great auk (1844)d. Quagga (1883)Task three: listening and writing1.Read the statements before listening. Tick those that you hear.2.Listen to the tape again and then work with a partner to fill in the chart on page 17.3.Whose idea do you agree with according to the listening materials? Get ready to write acomposition. Think about the reasons for your point of view. Use your own ideas as well as those in the text.。

高中英语学习材料madeofjingetiejiunit2 CloningⅠ.阅读理解AThere are many ways in which human cloning is expected to benefit humans.Dr Richard Seed, one of the leading supporters of humancloning technology, suggests that it may someday be possible tocompletely change the aging process because of what we learn fromcloning.Scientists believe that they may be able to treat heart attackvictims by cloning their healthy heart cells and injecting them into the areas of the heart that have been damaged. Heart disease is the number one killer in the US and several other industrialised countries.There has been a breakthrough with human stem cells. Embryonic stem cells can be grown to produce organs to repair or replace damaged ones. Skin for burn victims, brain cells for the brain damaged, hearts, lungs, and kidneys could be produced. By combining this technology with human cloning technology, it may be possible to produce needed organs for suffering people that will be free of rejection by their immune systems. Conditions such as Alzheimer’s disease, Parkinson’s disease, heart failure, and other problems can be cured if human cloning and its technology are not banned.Though current treatments for infertility (不生育) are getting a fair amount of publicity in the news, they, in terms of percentages, are not very successful. Some data shows that current infertility treatments are less than 10 percent successful. Couples go through physically and emotionally painful procedures for a small chance of having children. Many couples run out of time and money without successfully having children. Human cloning could make it possible for many more infertile couples to have children than ever before possible.语篇解读：本文作者从几个方面介绍了克隆人技术给人类带来了利益。