Using LanguageⅡ教案教学设计导入设计

Unit 2 Cloning

The First Period Warming Up, Pre-reading and Reading Teaching goals教学目标

1. Target language目标语言

a. 重点词汇和短语

clone，commercial，producer，undertake，arbitrary，object，forbid，accumulate，cast down，object to，the media，in favour of b. 重点句子

It is a way of….

The fact is that….

The question that occurred is….

2. Ability goals能力目标

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 学能目标

Help the students learn how to describe cloning. Teaching important points 教学重点

How to describe cloning. Teaching difficult point 教学难点

Help the students analyze the writing techniques of the article. Teaching methods 教学方法

Skimming, task-based method and debate method. Teaching aids 教具准备

A recorder, a projector and some slides.

Teaching procedures & ways教学过程与方式

Step I Lead-in Show picture on the screen, ask the student to talk about the pictures, pay attention to the word clone. Ask the students to discuss which ones are natural clones and which ones are man – made and explain how they differ. Then ask the student to answer the following questions:

1. Do you want to be cloned or not? Why? 2. If you are the judge what will you do? 3. Can you tell me the advantages of cloning? 4. And what is the disadvantage? Step II Pre-reading

Before class, ask the students to search for some information about this topic, then let them discuss the following questions:

1. What is a clone? 2. How is a clone produced? 3. What benefits can humans gain from cloning?

4. What problems may arise when humans are cloned? 5. Should we clone human? 6. Could cloning replace sex as the means of creating new human life? 7. Could a parent clone a child who is dying of a terminal illness? Step III While- reading

Find out the main idea of each paragraph. Para. 1 Cloning is a way of making an exact 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. Step IV Post-reading

Ask the students to read the passage again to finish these tasks. 1. What are the problems or dangers of cloning? 2. What are the advantages of cloning? 3. What is the writer’s opinion? What do you think is the writer’s point of view in this reading passage? Is it in favour of cloning or against is? 4. What is your opinion of cloning? Give the reasons. Step V Explanation

1. It is a way of making an exact copy of another animal and plant.

它是一种精确复制另一个动物或植物的方式。Here a way of means a manner of 一种……的方式。

2. Dolly’s appearance raised a storm of objections and had a great impact on the media and public imagination. In this sentence, raise means lead. (引起/导致)。全句意思是：多利的出现引起一场反对风暴，并且对媒体和公众思想产生了很大的冲击。

3.

However, scientists still wonder whether cloning will help or harm us and where it is leading us. “whether cloning will help or harm us”, “where it is leading us” is the objects of the word “wonder” 全句意思是：科学家一直致力于研究克隆到底会有助于我们还是会伤害我们，它们将我们引向何方。

Step VI Homework

Ask the students to do the following. 1. Complete the exercises on page 13. 2. Recite the key sentences in the text. 3. What is Cloning? You might not believe it, but there are human clones among us right now. Have you ever wished you could have a clone of yourself to do homework while you hit the skate park or went out with your friends? Imagine if you could really do that. Where would you start?

The Second Period Vocabulary and Useful Expressions

Aims: 1. Enable the Ss to grasp the words of cloning. 2. 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 algebra 5. 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 research 8. 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. 12. 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.

13. 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 Third period Speaking and Writing Teaching Goals:

1.Activate the Ss to show their opinions about the cloning 2. Enable the Ss to write an article on this debate.

3. Let the Ss focus on the different attitude towards cloning technology 4. Teach Ss how to get specific information.

Target Language:

Debate, issue, competition, in charge, topic, argument, reply to, summarize, profitable, donate, existence, embryo, justified, transfer, ethically, Cloning, attitude, medicine, organ I suggest that medical cloning is very important of curing serious illnesses that at present have no cure. I would like to suggest that medical cloning is not as simple an issue as my colleague claims. I agree with …

How would you do…?

Do you think …?

Teaching important & difficult points:

How to organize the debating materials

How to write a short composition of the debate Teaching methods

Task-based teaching method Teaching aids

A computer and a projector

Step1.Revision

1.

Greetings 2.

Check the homework and ask the Ss to speak out their opinion about the medical cloning

Step 2 Discussion Discuss how we should behave towards the human clones. 1.

How would you treat human clones? 2.

Do you think they should have legal and political rights, such as getting married or voting? 3.

Do you think they are separate people or part of the donors? Step 3 Speaking task

Debating Should we clone? Center on the subject: Why should we use cloning? Organize main ideas that support your point of view List your own idea Make a conclusion Notes for debating: Argument for cloning: 1)

Cloning will be beneficial to humans, For example, if a couple can’t have children, cloning could help give them a child; 2)

We could use cloning to cure illnesses. Arguments against cloning 1)

healthy risks form mutation of genes 2)

emotional risks 3)

against nature 4)

risk of abuse of the technology 5)

Cloned animals get ill and die quite young; 6)

People are afraid of that scientists will create sands of copies of the same person 7)

Cloning is dangerous because scientist may create monsters by mistakes. Step 4 Writing Write around 250 words on the debate. Organize your writing in this way: Paragraph1: the topic of the debate and who won Paragraph2: the ideas of the winning side Paragraph3: the ideas of the other side Paragraph4: conclusion and your reaction to the debate, together with any idea you feel they left out.

The Fourth Period Extensive reading Teaching aim:

1.Target language

a. 重点词汇

debate, issue, competition, in charge, topic, argument, reply to, summarize, profitable, donate, existence, embryo, justified, transfer, ethically. b. 重点句子

I suggest that medical cloning is very important of curing serious illnesses that at present have no cure.

I would like to suggest that medical cloning is not as simple as issue as my colleague claims. 2. Ability goals能力目标

1.To train the students’ reading ability

2. To make the students know something about the dinosaurs.. Key and difficult points:

To understand the passage as a whole. Teaching procedure:

Step I

Revision 1. Dictation

2. Read the new words again. Step II. Warming up

Do you think it is possible to clone dinosaurs?

If not,why?

If yes, do you think that’s good for human beings? Why? Step III. Reading Scanning (T/F) 1.

Scientists are still experimenting with cloning mammals because they think it can make money. 2.

The animals that have disappeared from the earth, like dinosaurs, can be brought back to life through cloning. 3.

If we can clone any extinct animals, we should let them live in a zoo. Detail reading

1. Why shouldn’t you clone an extinct animal if there isn’t enough diversity in the group?

2.Why is it wrong to clone an extinct animal if it would have to live in a zoo?

3.Why can’t you clone the DNA of animals that have been extinct longer than 10,000 years?

4. Why it is either impossible or unsuitable to clone extinct animals Step IV. further understanding

1.

The writer of the text_____

A. is excited by the possibility of cloning fierce and extinct animals

B. believes that extinct animals can be brought back to life by cloning C. thinks it impossible or unsuitable to clone extinct animals like dinosaurs

D. dreams of dinosaurs returning to the earth 2. The film Jurassic Park is popular because _____.

A. people are interested in the subject of cloning

B. all the actors are dinosaurs

C. it was directed by a scientist who clones dinosaurs

D. it proves very interesting 3. Which of the following is true? ____ A.

Mice were cloned in 1981. B. Dolly the sheep was the first cloned animal.

C. The name of the cloned cow is “Bison”

D. China was successful in cloning mammals. 4. The reasons why a group of cloned animals all die of the same illness do NOT include____.

A. they have the same arrangement of genes

B. there isn’t enough diversity in the group for it to overcome illnesses

C. the illness is a new one D. their arrangement of genes can not resist that new disease 5. We can infer from the text that____

A. scientists are experimenting to clone dinosaurs B. dinosaurs will never return to the earth C. cloned animals will only live in the zoo D. the DNA of dinosaurs can only survive 10 000 year Step V Explanation 1. The popularity of films such as Jurassic Park, in which a scientist clones several kinds of extinct dinosaurs, proves how the idea struck a mixture of fear and excitement into people’s heart. in which引导定语从句, how引导宾语从句

stick…in to one’s heart: 使……刻骨铭心

The accident struck the fear into his heart. 2. From time to time people suggest that the animals that have disappeared from the earth, like dinosaurs, can possibly be brought back to life through cloning.

人们时常设想从地球上消失的动物,例如恐龙,有可能通过克隆技术使它们复活。

from time to time有时, 间或, 偶尔,= occasionally, now and then They came to see us from time to time. bring back to life使复生，使复活

No one would bring the dead person back to life. 3. It would be unfair to clone any extinct animal if they would have to live in a zoo.

如果你克隆出任何绝种动物，而它们必须生活在动物园里那是不公平的。

当动词不定式、动名词或从句作主语时, 通常把它们放在谓语之后, 而用it作句子的形式主语。

4. All efforts of cloning an animal will be in vain if there is not enough diversity in the group to overcome illnesses. 如果某个动物群体里没有足够的多样性以战胜疾病，那么克隆这种动物的所有努力都将是无用的。

in vain: with no result; useless(ly)

Try in vain to sleep

All our work was in vain. 4. Diversity in a group means having animals with their genes arranged in different ways. 群中的多样性指的是拥有基因排列方式不同的动物。

with their genes arranged in different ways作定语, in different ways 以不同的方式。

5. ...but others will survive and pass on the ability to resist that disease to their children. ......其他的将存活下来并传递给其后代抵抗这种病的能力。

resist 作及物动词主要有三个义项:

①抵抗, 对抗; ②抵挡, 防止;

③

不屈从，经得住

(常与cannot, could not连用, 无法抗拒, 无法抵挡) 6. Based on what we know now, you can not clone animals that have been extinct longer than 10000 years.据我们现在所知, 绝种一万年以上的动物不能克隆。

base on/upon 以……为基础, 依据

其结构为: base sth. on/upon

sth. is based on/upon