Using LanguageⅡ优秀公开课教案

Book8 unit2

Using Language

重庆黔江中学

刘

锋

Teaching aims: 1.

To read the text to train the students’ reading ability-fast reading, careful reading. 2.

To learn some expressions in the text: from time to time, in vain, initial, resist etc.

3.

To arouse their interest in cloning and know some knowledge of cloning.

Teaching important points 1.

To train the students’ reading skills by doing these tasks. 2.

To remember the words and expressions. Teaching difficult points: 1.

To understand the text better. 2.

To finish the task of the discussion( give them some expressions) Teaching methods: 1.

Fast reading 2.

Careful reading 3.

Discussion Teaching aids

The blackboard, a computer Teaching procedures Step 1 Lead in

(play the video) Have you ever seen the film Jurassic Park?

What animal do you see in the film? Are they real dinosaurs? Do you think it possible for people to clone a dinosaur ?

Why ?

Step2. Reading Task 1: fast reading- Match the main idea with each paragraph

Para1

explain the impossibility of cloning dinosaurs

Para2

conclude that it’s just a dream

Para3

introduce the topic of the passage

Task2 :careful reading

Fill in the blanks: Listen to para1: 1.The popularity of films such as_____________, in which a scientist clones several kinds of __________dinosaurs, proves how the idea ______a mixture of___________________

_________________________. 2.Scientists are still ____ cloning mammals because __

. Listen to para2: Topic: The animals that have disappeared from the earth, like dinosaurs, can be brought back to life through cloning. Unfortunately, with what we know now, this is either impossible or unsuitable. 2.The_______ __________ is that you need perfect DNA. 3. All_____

of cloning an animal will be _______if there is not enough _______

in the

group to_______

_________. the return of dinosaur to the earth is __________ Reasons: Why can't

the dinosaurs return to the earth? We don’t have perfect DNA. Perfect _____is needed

There is not enough

________ in the group. Their genes arrangements are the same.

And they might die of the same illness. They don’t have a natural habitat. A (n) ______________ would be needed

The chance of dinosaurs returning to the earth is

______________.

Task3: guessing the meaning of the new words. 1.From time to time people suggest that

extinct animal…

A. There was a time when

B. Occasionally C. All the time

D. Each time 2. People suggest that dinosaurs, can

possibly be brought back to life.

A. resist

B. be restored. C. be difficult

D. relieved 3. The initial requirement

is that

will be in vain if There is not enough diversity . A. most thankful

B. most pressing C. Most difficult

D. most needed

4. All efforts of cloning an animal will be in vain If there is not enough diversity . A. go to waste

B. useless

C. helpless

D. meaningless

5.Others will pass on the ability to resist that disease . A. fight against

B. slide

C. hire

D. indicate 6. The chance of dinosaurs ever returning to the earth is merely a dream . A. only

B. surely

C. possibly

D. miserably

Task 4 choose the right answers. 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.

thinks dinosaurs can return 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.Cow gave birth to a bison in 2001. 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. 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 5.What is the writer’s attitude towards cloning the dinosaurs?

A. Supportive.

B. Neutral (中立的).

C. Negative (否定的). D. Subjective(主观的).

Task5: Arrange according to the text . 1.

Research using the embryos of mice. 2.

First experimental clones of cows. 3.

First experimental clones of mice 4.

Work on the embryos of sheep and mice 5.

China’s

first cloned twin calves .

6.

Cloning of frogs. 7.

first clone of a mammal. 8.

cow gave birth to a bison.

Step 6 discussion Ask some students to discuss: what can you learn from the text? Let students understand:

We should protect animals and plants, prevent them from becoming extinct, Protecting them is protecting ourselves. Step7 Homework

Write down your ideas in your exercise books.

Reflections:

This text looks easy, but to finish all the tasks may be a little difficult. I want students to perform their works, thus leaving no enough time to read. Or I should say at the reading part, time is limited. During the detailed reading, I should design a guessing exercise.