Using LanguageⅡ课时教学实录

教学设计

Unit 2

cloning

using language

The Return of the Dinosaurs?

StepI Warming up

Answer the following questions:

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?

Do you think it is possible to clone dinosaurs? StepII Listen to the text and then tell the following sentences are true or false.

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. StepIII

Careful reading

Choose the best answers.

Give some reasons why it is either impossible or unsuitable to clone extinct animals.

Reason 1:You need perfect DNA

Reason 2: There is not enough diversity for cloned animals to overcome new diseases.

Reason 3:

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 StepIV

Conclusion:

The chance of dinosaurs returning to the earth is

______________. Step V

Post-reading

1. 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 10000 year 2. What is the author’s attitude in this passage?

A.

Subjective.

B. Positive. C. Favorable.

D. Objective. 3. What is the main idea of this passage? A.

It proves the return of the dinosaurs. B.

It shows the history of cloning dinosaurs. C.

“The return of the dinosaurs” is impossible or unsuitable.

D.

“The return of the dinosaurs” is an excited story.

Step VI 长难句分析

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 hearts strike fear/excitement into one’s heart

使某人感到恐惧/兴奋

strike sb. down

摧垮，使病倒，使丧命

(1) Her words ________________________ so that he was sleepless all night long, afraid of being killed unexpectedly some day. (2) He __________________ by cancer when he was only thirty.

2．

From time to time people suggest that extinct animals like dinosaurs, can possibly be brought back to life through cloning.

人们时常设想灭绝的动物, 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

Step VII 练习

根据汉字提示完成句子。

1) We are determined to stay and ______________ (抵抗敌人). 2) Tom ________________________ (忍不住开玩笑) about his strange hairstyle. 3) Quite a few people in power _________ _____________________ (抵制不住金钱的诱惑) and disobey the law. Fill in the blanks with the words given cast down

pay off

in favour of from time to time

be bound to 1. She was ___________ by her husband’s death.

2. My uncle comes to have dinner with us _____________________. 3. He has been working so hard at his lessons, so he__________________ pass the exam this time. 4. Finally his efforts _______________. 5. All of them were strongly ________________ the project. Homework