Using LanguageⅡ教学教案设计

Unit 2

cloning

using language Teaching goals 教学目标

1. Target language目标语言

重点词汇和短语和句子

1.The popularity of the film proves how interested ordinary people are in the subject

popularà popularity 2.a long way from doing sth. 3. Do/make/carry out/perform an experiment on/in/with…做...实验, 对...做实验

4.from time to time有时；偶尔；时常

5.bring…back to life 使复生

6.Diversity in a group means having animals with their genes arranged in different ways. mean doing sth. have sth. done 7.but others will survive and pass on the ability to resist that disease to their children. pass on…to…传递; 留给

2. Ability goals 能力目标

Learn new words by adding prefixes or suffixes to a word. Learn noun clause .

3. Learning ability goals 学能目标

Learn how to make new words. Review what is noun clause and how to use it.

Teaching important points教学重点难点

Broaden vocabulary by adding prefixes or suffixes. Review noun clauses . Teaching methods教学方法

a. Study individually; b. practice.

Teaching aids教具准备

A computer and a projector.

Teaching procedures && ways教学过程与方式

Warming up

( 4ms ) Answer the following questions: 1.Have you ever seen the film Jurassic Park?

Do people like this film?

What animals do you see in the film?

Are they real dinosaurs?

Warming up

( 4ms ) 2.Do you like dinosaurs?

Can you see them in our real life?

Why?

Warming up

( 4ms ) 3. Do you think it is possible to clone dinosaurs?

If not,why?

If yes, do you think that’s good

for human beings? Why?

Reading -- I

scanning ( 5ms ) Read the text, then tell the following sentences are true or false. ( Students can discuss in pairs. ) 

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

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

If we can clone any extinct animals, we should let them live in a zoo. Give some reasons why it is either impossible or unsuitable to clone extinct animals Reason 1: Reason 2: Reason 3: You need perfect DNT There is not enough diversity for cloned animals to overcome new diseases. It would be unfair to clone any extinct animals if they would have to live in a zoo.

Diversity in a group of cloned animals Advantage of diversity

Disadvantage of diversity

If there is a new illness some of these animals

may die ,but others will survive and passed on the ability to resist that disease to their children. They would all have the same arrangement of genes and so they might all die of the same disease.

Reading -- II

Detail reading ( 6ms )

Read the text, then answer the following questions. ( Students can discuss in pairs. ) 

Why should’t you clone an extinct animal unless there is enough diversity in the group? 

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

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

Why should’t you clone an extinct animal unless there is enough diversity in the group? 

There will not be enough genetic variation (遗传变异)in the group to be able to resist new illnesses.

2. Why is it wrong to clone an extinct animal if it would have to live in a zoo? It is not a good idea to clone an animal that would have to live in a zoo because it is not a suitable habitat to develop and increase its numbers.The zoo is not a natural environment for a wild animal.

3. Why can’t you clone the DNA of animals that have been extinct longer than 10,000 years? The DNA of animals more than 10,000 years old is not suitable for cloning ,for it can’t survive so long. Reading -- III

Argument

( 10ms ) 1. Read the passage again and have a argument according to the requirement of Ex.2 on Page 16. 2. Students work in groups, when discussing, the head of each group should write down the opinions of all the members. 3. Ask some volunteers to show their opinions.

Language points 1.The popularity of the film proves how interested ordinary people are in the subject popularà popularity 2.a long way from doing sth. 3. Do/make/carry out/perform an experiment on/in/with…做...实验, 对...做实验

4.from time to time有时；偶尔；时常

5.bring…back to life 使复生

6.Diversity in a group means having animals with their genes arranged in different ways. mean doing sth. have sth. done 7.but others will survive and pass on the ability to resist that disease to their children. pass on…to…传递; 留给

当堂检测

1.The genes of the cloned animal are so arranged that it cannot ____such a disease , so it soon died. A. keep B. stop C. exist D. resist 2. You have to be firm, but ____you should be sympathetic. A. from time to time B. at one time C. at a time D. in time 3. He said nothing, ____smiled and watched her. A. most B. merely C. generally D. hardly 4. All their hard work has _____! The house is finished at last. A. paid back B. paid for C. paid off D. paid 5. Further information can be ____from our head office.

A. obtained

B. achieved

C. resisted

D. proved

6.Allen and I are in the same history class, but his assignment differs _____ mine.

A. on

B. from

C. in

D. to 7. The two sides in the dispute still differ ____each other ____the question of pay.

A. on; with

B. with; on

C. at; with

D. from; in

8. As we are very busy these days, we might ____this urgent work for the time being.

A. undertake

B. agree

C. employ

D. charge

9. It is very____ that there has been an increase in crime in the last six months.

A. disturbed

B. disturbing

C. disturb

D. being disturbed

10. Her father_____ her to go out alone.

A. hoped

B. allowed

C. forbade

D. permitted

11. We hope there will be a new_____ in high-technology in China.

A. breakdown

B. breakup

C. breakthrough

D. breakout

12. Dust ____in a room if we do not clean the room regularly.

A. accomplishes

B. accumulates

C. accommodates

D. achieves 13.They strongly object to ____the plan.

A. giving up

B. give up

C. giving off

D. give off

14. I am not _____satisfied with the decision.

A. exactly

B. altogether

C. properly

D. naturally

15. Since he heard of his failure at the examination, Tom has been very_______.

A. cast down

B. put down

C. turned down

D. taken down