Using LanguageⅡ教学实录及点评

Unit 2 Cloning Period 4 The return of the dinosaurs ? Teaching goal 1 To learn more about the cloning . 2 To learn the language points. 3 To practice listening.

Teaching important points 1 Let the students learn about the cloning. 2 Get the students to read the passage and know if extinct animals such as dinosaurs can possibly be brought back to life through cloning . 3 Have the students learn different reading skills . Teaching difficult points 1 Develop the students’ reading ability

2 Enable the students to talk about the subject of cloning. 3 Let the students know if extinct animals such as dinosaurs can possibly be brought back to life through cloning . Analysing the students and teaching course

As junior two students, thought they have learned some words and expressions, they have limited words and expressions. When reading and understanding the text, they still have difficulty. So during the course of the text, I have to use simple words to introduce the subject. Teaching methods 1 Task-based teaching and learning 2 Discussion 3 Practice Teaching procedures Step 1 Lead-in

See a short film and answer the following questions

1) What animals can you see the film?

2) Can you see them in our real life ? Why?

3) Do you think it possible for people to clone a dinosaur ? Why? Step 2 Fast reading

Match the main idea with each paragraph

Para. 1

explain the impossibility of cloning dinosaurs

Para.2

conclude that it’s merely a dream

Para.3

introduce the topic of the passage Step 3 Careful reading

Para. 1 choose the best answer

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.

Para.2 Fill in the blanks according to the passage

_______ for its 1)

Perfect ______ is needed.

impossibility 2)

There is not enough _________in the group.

3)

A(n) ______ would be needed for the cloned

extinct animals.

Find out the advantages and disadvantages of the diversity in a group of cloned animals.

Advantage of diversity Disadvantage of diversity If there is a new illness some of They would all have the same these animals may die, but others arrangement of genes and so might will survive and pass on the ability die of the same illness. to resist that disease to the next generation.

Para. 3

___________ The chance of dinosaurs returning to the earth is ____________ .

Exercise: 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. Step 4 Summary

Make a summary of the text

1 The introduction

Whether the dinosaurs should be cloned

2 The reasons for the impossibility of cloning dinosaurs

3 The conclusion

Step 5 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 hearts.

2 All efforts of cloning an animal will be in vain if there is not enough diversity in the group to overcome illnesses.

3 The advantage is that if there is a new illness some of these animals may die, but others will survive and pass on the ability to resist that disease to the next generation.

Step 6 Homework

1 Write a composition about whether the dinosaurs should be cloned and hand in it

tomorrow.

2 Summarize this unit.

3 Prepare unit3.