选修8Unit2ReadingCloningWhereisitleadingus
高二人教版选修8 unit2 Reading Cloning _ Where is it leading us _
ra 4
Para 5
D.The definition of cloning
E.The effect of cloning in
society
Scanning
1.Do you think cloning plants is straightforward or complicated? What about cloning animals? Cloning plants is straightforward while cloning animals is complicated.
A. 3 B. 6 C. 9 D. 13
1.Cloning means making a copy of an animal or a plant. (F ) 2.Gardeners can make a lot of money by cloning plants. (T )
3.Cloning is something that has been developed quite recently. (F )
A macaque （猕 猴）was cloned in 2000. Later scientists cloned many monkeys . It can be used to test out some diseases such as diabetes(糖尿病）
Mules (骡子） have no ability to give birth to a baby. A mule was cloned in 2003. It is the first animal which lack fecundity (生 育能力）to be cloned.
C. Animal cloning is well developed because
英语高考复习 人教选修八 Unit 2 课文词汇语法填空 含答案
选修8 Unit 2 Cloning-ReadingCLONING: WHERE IS IT LEADING US?Cloning has always been with us and is here to stay. It is a way of making an exact copy of another animal or plant. It happens in plants 1. gardeners take cuttings from growing plants to make new ones. It also happens in animals when twins identical in sex and appearance 2. (produce) from the same original egg. The fact is 3. these are both examples of natural clones.Cloning has two major uses. Firstly, gardeners use it all the time to produce 3. ___________ (commence) quantities of plants. Secondly, it is valuable for research on new plant species and for medical research on animals. Cloning plants is straightforward while cloning animals is very complicated. It is a difficult task 4. ___________ (undertake). Many attempts to clone mammals failed. But at last the 5. ___________ (determine) and patience of the scientists paid 6. in 1996 with a ___________ (突破)- the cloning of Dolly the sheep. The procedure works like this: On the one hand, the whole 7. (science) world followed the progress of the first successful clone, Dolly the sheep. The fact that she seemed to develop normally was very 8. (encourage). Then came the disturbing news that Dolly 9. (become) seriously ill. Cloning scientists 10. (cast) down to find that Dolly's illnesses were more appropriate 11. a much older animal. Altogether Dolly lived six and a half years, half the 12. (long) of the life of the original sheep. 13. (sad) the same arbitrary fate affected other species, such as cloned mice. The questions that 14. (concern) all scientists were: "Would this be a major difficulty for all cloned animals? Would it happen forever? Could it 15. (solve) if corrections were made in their research procedure?"On the other hand, Dolly's appearance raised a storm of 16. (object) and had a great impact on the media and public imagination. It became controversial. It suddenly opened everybody's eyes to 17. possibility of using cloning to cure serious illnesses and even 18. (produce) human beings.Although at present human egg cells and embryos 19. (need) for cloning research are difficult to (获得), newspapers wrote of evil leaders hoping to clone themselves to ________ _________ ___________ (实现他们的野心). Religious leaders also raised (道德的) questions. Governments became nervous and more (保守的). Some began to reform their legal systems and 20. (forbid) research into human cloning, but other countries like China and the UK, continued to ___________ ___________ (积累证据) of the abundant medical aid that cloning could provide. However, scientists still wonder 21. ____________ cloning will help or harm us and where it is leading us.THE RETURN OF THE DINOSAURS?The possibility of cloning fierce and extinct wild animals has always excited film makers. And they are not the only ones! The 1. (popular) of films such as Jurassic Park, 2. which a scientist clones several kinds of extinct dinosaurs, proves how the idea 3. (strike) a mixture of fear and excitement 4. ________ people's hearts. But in fact we are a long way 5. being able to clone extinct animals. Scientists are still experimenting 6. cloning mammals. This is because the cloning of mammals is still a new science and its story only began seriously in the 1950s as this list shows:1950s cloning of frogs 1996 first clone of a mammal: Dolly the sheep 1970s research using the embryos of mice 2000 cow gave birth to a bison1979 work on embryos of sheep and mice 2001 China's first cloned twin calves 1981 first experimental clones of mice 2002 first cloned cats1983 first experimental clones of cows 2005 first cloned dog________ ________ _______ _______ (不时) people suggest that extinct animals like dinosaurs, can 7. (possible) be brought back to life through cloning. Unfortunately, with what we know now, this is either impossible or 8. _____________ (suit). There are many reasons.◎The (最初的) requirement is that you need perfect DNA (which gives information for how cells are to grow).◎All efforts of cloning an animal will be ______ _______ (徒劳) if there is not enough diversity in the group 9. (overcome) illnesses. Diversity in a group means 10. (have) animals with their genes arranged in different ways. The advantage is that 11. there is a new illness some of these animals may die, but others will survive and pass 12. the ability 13. (resist) that disease to the next generation. The great drawback to cloning a group of animals is that they would all have the same arrangement of genes and so might die of the same illness. Then none of them would 14. (leave) to continue the species. ◎It would be unfair to clone any extinct animals if they were to live in a zoo. A suitable habitat would be needed for them to lead a natural life.15. (base) on what we know now, you cannot clone animals that have been extinct longer than 10,000 years. Actually, dinosaurs disappeared 65,000,000years ago. So the chance of dinosaurs ever returning to the earth is (mere) a dream.选修8 Unit 2 Cloning-ReadingCLONING: WHERE IS IT LEADING US?Cloning has always been with us and is here to stay. It is a way of making an exact copy of another animal or plant. It happens in plants 1. when gardeners take cuttings from growing plants to make new ones. It also happens in animals when twins identical in sex and appearance 2. are produced (produce) from the same original egg. The fact is 3. that these are both examples of natural clones.Cloning has two major uses. Firstly, gardeners use it all the time to produce 3. commercial (commence) quantities of plants. Secondly, it is valuable for research on new plant species and for medical research on animals. Cloning plants is straightforward while cloning animals is very complicated. It is a difficult task 4. to undertake (undertake). Many attempts to clone mammals failed. But at last the 5.determination (determine) and patience of the scientists paid 6. off in 1996 with a breakthrough (突破)- the cloning of Dolly the sheep. The procedure works like this: On the one hand, the whole 7. scientific (science) world followed the progress of the first successful clone, Dolly the sheep. The fact that she seemed to develop normally was very 8. encouraging (encourage). Then came the disturbing news that Dolly 9. had become (become) seriously ill. Cloning scientists 10. were cast (cast) down to find that Dolly's illnesses were more appropriate 11. to a much older animal. Altogether Dolly lived six and a half years, half the 12. length (long) of the life of the original sheep. 13. Sadly (sad) the same arbitrary fate affected other species, such as cloned mice. The questions that 14. concerned (concern) all scientists were: "Would this be a major difficulty for all cloned animals? Would it happen forever? Could it 15. be solved (solve) if corrections were made in their research procedure?"On the other hand, Dolly's appearance raised a storm of 16. objections (object) and had a great impact on the media and public imagination. It became controversial. It suddenly opened everybody's eyes to 17. the possibility of using cloning to cure serious illnesses and even 18. to produce (produce) human beings.Although at present human egg cells and embryos 19. needed (need) for cloning research are difficult to obtain (获得), newspapers wrote of evil leaders hoping to clone themselves to attain their ambitions (实现他们的野心). Religious leaders also raised moral (道德的) questions. Governments became nervous and more conservative (保守的). Some began to reform their legal systems and 20. forbade (forbid) research into human cloning, but other countries like China and the UK, continued to accumulate evidence (积累证据) of the abundant medical aid that cloning could provide. However, scientists still wonder 21. whether cloning will help or harm us and where it is leading us.THE RETURN OF THE DINOSAURS?The possibility of cloning fierce and extinct wild animals has always excited film makers. And they are not the only ones! The 1. popularity (popular) of films such as Jurassic Park, 2. in which a scientist clones several kinds of extinct dinosaurs, proves how the idea 3. struck (strike) a mixture of fear and excitement 4. into people's hearts. But in fact we are a long way 5. from being able to clone extinct animals. Scientists are still experimenting 6. with cloning mammals. This is because the cloning of mammals is still a new science and its story only began seriously in the 1950s as this list shows:1950s cloning of frogs 1996 first clone of a mammal: Dolly the sheep 1970s research using the embryos of mice 2000 cow gave birth to a bison1979 work on embryos of sheep and mice 2001 China's first cloned twin calves 1981 first experimental clones of mice 2002 first cloned cats1983 first experimental clones of cows 2005 first cloned dogFrom time to time (不时) people suggest that extinct animals like dinosaurs, can 7. possibly (possible) be brought back to life through cloning. Unfortunately, with what we know now, this is either impossible or 8.unsuitable (suit). There are many reasons.◎The initial (最初的) requirement is that you need perfect DNA (which gives information for how cells are to grow).◎All efforts of cloning an animal will be in vain (徒劳) if there is not enough diversity in the group 9. to overcome (overcome) illnesses. Diversity in a group means 10. having (have) animals with their genes arranged in different ways. The advantage is that 11. if there is a new illness some of these animals may die, but others will survive and pass 12. on the ability 13. to resist (resist) that disease to the next generation. The great drawback to cloning a group of animals is that they would all have the same arrangement of genes and so might die of the same illness. Then none of them would 14. be left (leave) to continue the species.◎It would be unfair to clone any extinct animals if they were to live in a zoo. Asuitable habitat would be needed for them to lead a natural life.15. Based (base) on what we know now, you cannot clone animals that have been extinct longer than 10,000 years. Actually, dinosaurs disappeared 65,000,000 years ago. So the chance of dinosaurs ever returning to the earth is merely (mere) a dream.。
高中英语_人教版高二英语选修八Unit2Cloning：Whereisitleadingus教学设计
Book8 Unit2 CloningPeriod 1 Reading在英语教学中“阅读理解能力”是学生从阅读中获取信息的能力以及对文章理解的速度和准确性的关键因素。
培养学生的阅读能力是课文阅读教学的主要目标，同时还要注意培养学生在阅读过程中获取和处理信息的能力，让学生学会利用相关的英语知识去解读英语阅读材料。
本节课是一节阅读课，设计过程如下：导入引出克隆这一话题 --- 通过略读掌握段落大意，文章结构( read for structure )--- 通过精读了解文章细节信息( read for information )--- 通过对细节的推理学会猜测词义和推断作者立场态度 ( read for reference ) --- 通过整合信息，以高考语法填空的题型小结课文内容( read for consolidation ) ---独立思考后合作讨论( read for critical thinking ) --- 课后作业(写作拓展)。
教材里本单元内容，语言技能和语言知识都是围绕“克隆”这一中心话题设计的。
具体涉及“什么是克隆” , “克隆羊多利是如何诞生的”，“克隆的利与弊”等。
教师可在充分利用教材资源的基础上，结合学生的实际情况设计教学活动，旨在帮助学生有效地掌握阅读技巧，形成有效地学习方法和阅读策略，同时了解说明文篇章结构和写作特点，为下一步进行议论文的写作教学做好准备。
目标聚焦一、知识点初步理解、掌握克隆意为无性繁殖，克隆技术即为无性繁殖技术。
学习课文中关于克隆这一新生物技术的有关知识，学习分析课文中的长难句子，初步感知课文中出现的的本单元要学的语法现象。
二、能力点1、能理解文章主旨大意，获取信息、处理信息、进行推理判断和表达的能力。
2、形成分析篇章结构的能力，提升逻辑思维能力3、学会增加语言的输出量，提高语言表达能力。
4、能利用上下文猜测生词词义三、兴趣点 1、利用已获取的信息发表自己对进行人类克隆问题的看法。
高中英语人教版选修8 Unit2 Cloning Reading Cloning：Where is
English learning Plan of Senior 2（导学案）The wish words of teacher's（教师寄语）：Relax! Be patient and enjoy yourself. Learning foreign languages should be fun. (放松点！要有耐性，并让自己快乐！学习外语应该是乐趣无穷的。
）㈠Teaching aims(学习目标)1.Knowledge aims（知识目标）⑴To learn about cloning by reading.⑵.To master and understand some structures and complex sentences.2.Ability aims（技能目标）⑴. Read passages by using different reading skills (skimming﹑scanning﹑careful reading) .⑵. Express own opinions about cloning in form of debate..3.Emotion aims（情感目标）⑴Be interested in science technology (cloning).⑵. Learn to team up with others.㈡Special and difficult Points(学习重难点)1. Learn different reading skills(Skimming, scanning﹠careful reading).2 Learn more about cloning.3. Describe cloning in your own words.㈢The procedure of learning （学习过程）Before class (课前预习胸有成竹)【自主预习】㈠学法指导⑴通读本篇文章，查字典，猜生词，记短语，勾出文中复合句以及难句。
Unit2《Cloning》reading课件(新人教版选修8)
to get something, especially by asking for it, buying it, working for it or producing it from something else vt. 获得；赢得 obtain
Unit 2 Reading
CLONING: WHERE IS IT LEADING US?
Read the explanation and
speak out the word it explains.
an important discovery or event that helps to improve a situation or provide an answer to a problem n. 突破 breakthrough
a set of actions which is the official or accepted way of doing something n. 程序；步骤；手续 procedure
related to buying and selling things adj. 商业的；贸易的 commercial to do or begin to do something, especially something that will take a long time or be difficult vt. 着手；从事；承担 undertake
Read the passage quickly to find the main idea of each paragraph.
人教版高二英语选修八Unit 2 Cloning reading (共22张PPT)
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15、最具挑战性的挑战莫过于提升自 我。。2021年8月2021/8/52021/8/52021/8/58/5/2021
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16、业余生活要有意义，不要越轨。2021/8/52021/8/5August 5, 2021
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17、一个人即使已登上顶峰，也仍要 自强不 息。2021/8/52021/8/52021/8/52021/8/5
Unit 2
Cloning: Where Is It Leading Us?
Look at these pictures below first.
Read the text fast and get a general idea of it.
1. What does this passage mainly tell about?
Animal cloning raised arguments and scientists are not sure about its future.
2. What do you think is the writer’s point of view in this reading passage? Is he/ she in favour of cloning or against it?
另一方面，多莉的出现引起了一阵强烈的 反对， 对媒体和公众的想象力也产生了极 大的影响。
选修8 unit2 cloning Reading
Reading CLONING: WHERE IS IT LEADING US?
Fast-reading
Read the text and match the main idea.
Para. 1 Para. 2 Para. 3
Para. 4
a. The effect of Dolly.
b. The major uses of cloning.
Para. 1 The definition of cloning
What is cloning ?
Cloning is a way of making an exact copy of another animal and plant.
Para. 2
The major uses and procedures of cloning
3 People feared that cloned Hitlers
would do harm to the world.
Homework
Finish the Ex. 1, 2 and 3 of Learning about language.
Para. 3 The problems of Dolly
About ● Encouraging news: Dolly Dolly the sheep
normally developed ________.
● Disturbing news: Dolly lived for six years and a half years, half the length of the life of the original one.
Para 4
The impact of Dolly
高中英语 Unit2阅读 Cloning Where is it leading us教案 新人教版选修8
英语选修8人教版新课标Unit 2阅读教案Unit 2 Cloning: Where isit leading us?中国书法艺术说课教案今天我要说课的题目是中国书法艺术，下面我将从教材分析、教学方法、教学过程、课堂评价四个方面对这堂课进行设计。
一、教材分析：本节课讲的是中国书法艺术主要是为了提高学生对书法基础知识的掌握，让学生开始对书法的入门学习有一定了解。
书法作为中国特有的一门线条艺术，在书写中与笔、墨、纸、砚相得益彰，是中国人民勤劳智慧的结晶，是举世公认的艺术奇葩。
早在5000年以前的甲骨文就初露端倪，书法从文字产生到形成文字的书写体系，几经变革创造了多种体式的书写艺术。
1、教学目标：使学生了解书法的发展史概况和特点及书法的总体情况，通过分析代表作品，获得如何欣赏书法作品的知识，并能作简单的书法练习。
2、教学重点与难点：（一）教学重点了解中国书法的基础知识，掌握其基本特点，进行大量的书法练习。
（二）教学难点：如何感受、认识书法作品中的线条美、结构美、气韵美。
3、教具准备：粉笔，钢笔，书写纸等。
4、课时：一课时二、教学方法：要让学生在教学过程中有所收获，并达到一定的教学目标，在本节课的教学中，我将采用欣赏法、讲授法、练习法来设计本节课。
（1）欣赏法：通过幻灯片让学生欣赏大量优秀的书法作品，使学生对书法产生浓厚的兴趣。
（2）讲授法：讲解书法文字的发展简史，和形式特征，让学生对书法作进一步的了解和认识，通过对书法理论的了解，更深刻的认识书法，从而为以后的书法练习作重要铺垫！（3）练习法：为了使学生充分了解、认识书法名家名作的书法功底和技巧，请学生进行局部临摹练习。
三、教学过程：（一）组织教学让学生准备好上课用的工具，如钢笔，书与纸等;做好上课准备，以便在以下的教学过程中有一个良好的学习气氛。
（二）引入新课，通过对上节课所学知识的总结，让学生认识到学习书法的意义和重要性！（三）讲授新课1、在讲授新课之前，通过大量幻灯片让学生欣赏一些优秀的书法作品，使学生对书法产生浓厚的兴趣。
高中英语 Unit 2 Cloning reading cloning where is it leading us课件 新人教版选修8
D. is usually as healthy as the original one
推理判断
5. The sheep that donated the somatic
cell most probably lived ____ years.
A. 3 B. 6 C. 12 D. 13
6. Which of the following is not an advantage of cloning? A. Cloning can be used for medical purposes. B. Large quantities of food can be produced by cloning. C. Famous persons who have passed away can be cloned. D. Cloning can help keep animals from becoming extinct.
Find the main idea of each paragraph.
高中英语_人教版高二英语选修八Unit2 Cloning：Where is it leading us教学课件设计
another animal or plant. Cloning has two major uses. Firstly,
gardeners use 2.________ to produce plants. Secondly, it is
of great 3.____________ (valuable) for medical research on
Match the main idea of each paragraph
What is cloPnainrag?1
PMaarjaor2uses
Cloning Where is it Leading us?
Dolly's prPobalream3 DolPlya'sraim4pact
People's reaction
Part3 (para.5): People’s reactions to cloning
ambitious
negative
moral
positive
nervous and conservative
Evil leaders ____________________
Religious leaders___________________
2. Which one is difficult to undertake? A. Cloning plants. B. Cloning animals.
Part2 (par.2.3.4)the information about Dolly
Para.3 Problems
normally
At first, the fact that Dolly developed ___________ was
人教选修8 Unit2 Cloning Where is it leading us 课件
Reading
Cloning: Where is it leading us?
Skimming
1. The main idea of the text is____ A. animal cloning is very valuable and can benefit the world. B. animal cloning could be misused by bad people so it must be forbidden C. animal cloning is well developed because Dolly the sheep was born. D. animal cloning raised arguments and scientists are not sure about its future.
Dolly the sheep
A strawberry plant
Growing new plant.
Twins
Pre-reading
In pairs discuss what you understand about cloning. Then list the questions you want to find out. Share your lists with one another.
11. We can infer from the last three paragraphs D that _____. A. the normal development of Dolly had no effect on the cloning of other species. B. Dolly’s serious disease and final death disturbed the whole world. C. Dolly successfully cloned a new lamb with the help of cloning scientists. D. there were arguments about animal cloning and concerns about the future of cloning.
最新book8 unit2 Cloning where is it leading us资料讲解
Para 1 ParaБайду номын сангаас2
Para 3
Para 4 Para 5
A. The problems of Dolly B. The two major uses of
cloning C. The attitudes towards cloning D. The definition of cloning E. The effect of cloning in society
Dolly the sheep
Question 4 : How does Dolly differ from
other sheep?
be different from
She was cloned while the others were born naturally.
Dolly was a c_l_o_n_e_d_ sheep.
the word “straightforward” is very complicated
means ____.
A. uncomplicated B. honest
C. frank
D. difficult
细枝末节
Their determination and The cloningpoaftiDeonlclyetohfetshheeep
Twins
__N_a_tu_r_a_l __ clone
They are born naturally and identical(一模一样)
in _s_e_x_and __a_p_p_e_ar_a_n_c_e_.
Para 2 The major uses and procedures of cloning
选修8 Unit 2 Cloning Reading
Reading– Where is it leading us?
课前备好 :课本、提纲
exact cutting twin identical commercial
procedure nucleus somatic cell embryo carrier
fate make corrections object to objection have an impact (on)
Para.1 Para.2 The impact of Dolly the sheep. Controversy brought by Dolly the sheep.
Para.3
Para.4 Para.5
The definition of cloning
The birth and death of Dolly. The major uses and the procedure of cloning Dolly the sheep.
straightforward
complicated
cast
cast down
medium
the media
undertake
pay off
altogether
arbitrary
conservative
forbid,forbade,fe you for or against this idea?
Many governments forbade research 2 All the research into human beings will be into human beings. forbidden.
3 Some countries will use cloning in a wise way.
说课稿-选修8---unit2--Cloning-where-is-it-leading-us
NEW SENIOR ENGLISH FOR CHINASTUDENT’S BOOK 8Unit 2 Cloning: where is it leading us?Good afternoon, judges! Today I’ll talk about Cloning: where is it leading us? It’s a pleasure to share my teaching plan with all of you here. My teaching plan is made up of seven parts. They are ….A. The analysis of the teaching material：This is the second teaching period of this unit. The central part is the reading text with the name of Cloning: where is it leading us? It talks about what is cloning, the uses of cloning and different ideas about cloning. The aim of Reading is to introduce students the procedure of cloning and the life of Dolly the sheep.B. The analysis of the students’ learning：Although students have learned something about cloning in biology class, they still have difficulty in understanding the text Cloning: where is it leading us? In some sense, the topic is difficult for students. So we should help thestudents learn more about it by using different ways.C. Teaching Aims:1. Knowledge aims:To learn about some facts and views about cloning and know how the information is organized.2. Ability aim:To train students’ reading ability by skimming and scanning the passage.To talk about what we should do to deal with cloning properly.3. Emotional aims:To realize the benefit of cloning and the harm of cloning.To develop students’ sense of cooperative learning.D. Teaching Important and Difficult points: Teaching important point:To learn about and describe cloning. Teaching difficult point:To help the students express differentopinions about cloning.E. Teaching and learning methods:skimming, scanning , group- work, discussion and task-based teaching method.F. Teaching aidswhiteboardG. Teaching procedures:Step1 Show learning aims.The purpose of the design:To make students knowwhat we will learn during the period.Step2 Check previsionQ1: What’s cloning?Q2: What can it be divided into?The purpose of the design: To see if Ss have known some knowledge about cloning?白板的作用：白板将黑板、投影仪、电脑整合在一起成为课堂教学的重要手段，大大提高了教学效率。
人教课标版高中英语选修8Unit2Reading PPT课堂课件(24页)
egg cell 卵细胞
is removed
carrieห้องสมุดไป่ตู้ 携带者
nucleus ready 细胞核
embryo 胚胎 divides & grows
人教课标版高中英语选修8Unit2Readi ng PPT课堂课件(24页)（ -精精品品P） PT课件
Careful Reading: Para 3-5
人教课标版高中英语选修8Unit2Readi ng PPT课堂课件(24页)（ -精精品品P） PT课件
possible pattern:
I am for/ against cloning. Firstly, _____________________. Secondly,_____________________. Thirdly ,___________________. In all, ...
In 1996. It was their determination and patience that made them succeed.
人教课标版高中英语选修8Unit2Readi ng PPT课堂课件(24页)（ -精精品品P） PT课件
人教课标版高中英语选修8Unit2Readi ng PPT课堂课件(24页)（ -精精品品P） PT课件
Careful Reading: Para 2
1.What are the two major uses of cloning ?
Firstly, …commercial… Secondly, …research…
2. When was the cloning of Dolly the sheep born? What made the scientists succeed in cloning it?
人教课标版高中英语选修8 Unit2_Reading_公共课课件(三)
Expositon--------科普文章------- aims to introduce... Narration-------- 小说，故事---- aims to tell a story...
Argumentaion---社论，表达观点---aims to convince...
Instruction----手册，菜谱，说明书----aims tos the writing style?
A. Exposition（说明文） B. Narration（记叙文）
C. Argumentation（议论文） D. Instruction（指令
文）
commen text types
writing styles
常见语篇材料
function/purpose
Warming Lead-in Fast Reading Careful Reading Retelling
3. Which of the following is not an advantage of cloning? A.Cloning can be used for medical purposes. rge quantities of plants can be produced by cloning. C.Cloning can help keep animals from becoming extinct. D.Famous persons who have passed away can be cloned. 4.What is the writer's attitude towards cloning in this passage? A.Objective(中立的) B.Negative. C.Positive.
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1. What is a clone?
A clone is an animal or a plant produced naturally or artificially from the cells of another animal or plant and is exactly the same as it.
Learning tips:
The passage is written in the expositive style. That is to say the text is in the third person and in factual and formal language. It gives different points of view and does not try to persuade the reader to make up his/her own mind.
4. It can be inferred from the passage that a cloned animal__C___. A. usually lives as long as the original one B. usually lives longer than the original one C. usually dies earlier than the original one D. is usually as healthy as the original one
3. Dolly the sheep __B___. A. looked exactly like the sheep that provides the egg. B. was the exact copy of the sheep that provides the nucleus. C. looked like the sheep that gave birth to it. D. had the characteristics of all three sheep.
1. What is the main topic? _A____ A. Cloning. B. Dolly the sheep .
C. It will lead us to some places.
2. What is the writing style? _A___ A. Expositive (说明性的). B. Descriptive. C. Argumentative (议论性的).
一株草莓依株草莓苗。
富贵竹插枝即活
The gardener should cut the plant, then the cutting produce another new plant.
1996 cloning sheeps
2001 cloning cattle
5. Which of the following is not an advantage of cloning? __D___
Reading
Twins
They are born naturally and identical in sex and appearance.
A strawberry plant
The new plants that grow from the runners are exact copies of the original plant.
4. What problems may arise when humans are cloned?
• People may want to clone themselves so they can live forever.
• People may want to clone dead children. • People may want to clone their favourite pets.
我国成功繁殖克隆兔 体形要比普通兔大许多
2002年5月 中旬成功地 繁殖了一只 胚胎细胞 克隆兔。
2002 cloning cats
2002年4月16日 美国第一头克 隆牛“艾米” 产下牛犊。
2005 cloning dogs
Pre-reading
In pairs discuss what you understand about cloning. Then list the questions you want to find out. Share your lists with one another.
2. How is a clone produced？
1)The cloning of plants is simple and relatively easy. It can be done by taking cuttings (manmade cloning) or letting the plant produce its own runners (natural cloning). 2)The cloning of animals is more complicated. It was not achieved until 1996 and is fully explained in the first reading.
3. What benefits can humans gain from cloning？
Medical cloning can help cure serious illnesses that ruin one’s quality of life (such as Parkinson’s disease or Alzheimer’s disease). It can help infertile people have babies.