Using LanguageⅡ教学设计第二课时

Book 8

Unit 2

Cloning克隆(学案) Period 1

Warming Up, Pre-reading, Reading & Comprehending Step 1

Leading-in

Quiz：What is the name of the first cloned(克隆) animal in the world？

Step 2

Warming up A brief introduction of Dolly the sheep Step 3

Pre-reading

Enjoy a video about Dolly and think about: What do you want to know about cloning(克隆)?

cloning

Step 4

While-reading I. Skim to match the main idea of each paragraph Para1: The major uses of cloning. Para2: The problems of Dolly.

Para3: The effect of Dolly.

Para4: People’s attitude towards cloning.

Para5: The definition(定义) of cloning. II. Scan the passage for the details. 1. Scan para.1 & para.2 and then answer questions. (1) In the second paragraph, the word “straightforward” means ____.

A. uncomplicated

B. honest

C. frank

D. difficult (2) Which is not an advantage of cloning? A. Cloning can be used for medical purpose.

C. Cloning can stop animals becoming extinct.

B. Large quantities of food can be produced by cloning.

D. Famous persons who have passed away can be cloned2. Read the procedure (1-9) in the reading passage and underline(划线) the words you don’t understand. Enjoy a video about the procedure and try to translate(翻译) these words in the picture into English. (体细胞)

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3. Scan para3, 4 and 5 to decide they are true or false. (1) Animals clones may develop the illness of order animals. (2) Animals clones may not die younger than the original animal. (3) Medical cloning could produce cures for serious illnesses in humans. (4) Evil leaders may want to clone themselves. (5) There are not moral objections to cloning human beings. Step 5

Post-reading 1. Fill in the chart using the information from the reading passage. Write down your own reason in the last column(栏). Problems or dangers of cloning Advantages of cloning Animals may _____ ______of older animals. Medical cloning can produce ______ for serious ________ in humans.

Animal clones may ___ _______ than the Cloning plants can produce commercial ______ ______ _____. donor animals. Cloning plants can produce commercial Cloning plants can produce commercial ______ ______ _____. ______ ______ _____. ____ _____ may want to clone themselves. Cloning can be _____ for research on ________________ . There are _____ __________ to cloning Cloning can be useful for _____ research on _____

to save endangered human beings. animals.

2. Practise: to make a dialogue Discuss with your partner to make a dialogue and then show it. 1. What is your opinion on cloning?

2. What are the reasons for it? A possible sample:

A：What’s your opinion on cloning?

B：Personally，I’m in favor of（支持）/ against(反对) it. A：What are the reasons for it?

B：There are several reasons as follow(如下).

Firstly,….Secondly,….Last,……

Step 6

Make a summary clone The definition and major uses of Cloning. The problems and effect of Dolly. People’s attitude towards cloning.

We students’ opinions on cloning.

Step 7

Homework

Write a passage titled Is cloning good or bad?

Your passage should include the following：

1) What is cloning

2) Advantages of cloning

3) Disadvantages of cloning

4) Your opinion on it

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