Using LanguageⅡ第二课时教案

Cloning : Where is it leading us?

Teaching aim:

Let the students to know more about cloning. Teaching importance: Get the main idea of the passage . Teaching difficulty: How to improve the students ’reading abilities

Teaching procedure:

Step 1

prediction: What do you want to know about cloning?

Step 2

Skimming

:match the main idea with each paragraph.

Para 1

A.Two major uses and the procedure of cloning.

Para 2

B.Cloning is a way of making an exact copy of another animal or plant.

Para 3

C.The effect of Dolly the sheep.

Para 4

D.It is forbidden to clone human beings.

Para 5

E.The problem of dolly the sheep. Step 3

Scan(扫读) paragraph 2and 3 and answer the following questions: 1).It can be inferred from the passage that a cloned animal_____.

A. usually lives as long as the original one

B. usually lives longer than the original one

C. usually lives shorter than the original one

D. is usually as healthy as the original one 2)2.The cloning of Dolly the sheep succeeded because____.

A. its easier to clone a sheep than other animals

B.the scientists were determined and worked hard with patience C. the scientists were rewarded and got lots of money D. many other attempts to clone mammals failed Careful reading:

Read for information

Step 4

Read the passage carefully and raise your questions in groups. One group read one paragraph and raise one question according to the paragraph.

How to produce a sheep Step 5 Remove the difficulties: 1.)Then came the disturbing news that Dolly had become seriously ill.（分析句子结构）

2.)On the other hand,Dolly’s appearance raised

a storm of objections and had a great impact on the media and public imagination. （翻译）

3.)Fill in the blanks:para.4and5 On the other hand, Dolly’s appearance raised a storm of1____________and had a great 2_______ on

the

media

and

public

imagination. It

became controversial.

Newspapers

wrote

of

evil

leaders hoping

to

clone

themselves

to

3________

their ambitions. Besides,

religious

leaders

also

raised 4_______

questions.

So

governments

became nervous

and

more

5___________. Some

even

6 ______

research

into

human

beings

but

other countries

like

China

and

the

UK

continued

to 7___________

evidence

of

clone’s

medical

aid. However, scientists still wonder whether cloning will help or harm us and where it is leading us. 4.)Dabate :Are you for or against cloning human beings The 10-year-old girl, Kinder died in an accident in America, clone can produce an exact girl of her. Clone can make a woman who can’t get pregnant have a child. At present our country lacks organs. The cloned man can transform his organs to his original one They have the same face. People are no longer special to each other. Debate:Are you for or against cloning human beings Step 6 Quiz: See what you got from our class today!（yes or no) 1.Do you know what clone is? 2.Do you know how Dolly the sheep was produced? 3.Do you know the advantages and disadvantages of cloning? 4.Are you active in group discussions? 5.Do you have fun in our class? Step 7 Homework What’s your opinion of cloning human beings? Write a short passage according

to your discussion.