Using LanguageⅡ优质课教案推荐

Unit 2 Cloning教案

Reading Teaching goals教学目标

1. Target language 目标语言

a. 重点词汇和短语

clone, commercial, producer, undertake, arbitrary, object, accumulate, cast down, object to, the media, in favour of b. 重点句子

It is a way of... The fact is that... The question that occurred ... 2. Ability goals能力目标

Enable the students to describe cloning 3. Learning ability goals 学能目标

Help the students learn how to describe cloning. Teaching important points 教学重点

How to describe cloning.

Teaching difficult points 教学难点

Help the students analyze the writing techniques of the article. Teaching methods 教学方法

Skimming, task-based method and debate method. Teaching aids 教具准备

forbid,

A recorder, a projector and some slides.

Teaching procedures && ways教学过程与方式

Step I Lead-in This topic is difficult for students. So teacher should help the students learn more about it. Do this by showing the dialogues in the picture. A: Mary, who is that person? B: He is my husband. A: But I heard he died last year. B: Yes, I had him cloned. After showing the dialogues, the teacher leads to the topic: cloning. Then, the teacher introduces the nature clone and man-made clone. T: Look at the pictures and discuss which ones are natural clones and which ones are man-made. Then explain how they differ. S: I think the twins are natural clones and the Dolly sheep is man-made. T: You are right! Can you explain how they differ? S: The twins were born at the same time, but the Dolly sheep is man-made. T: Anything else? Who want have a try? S: I think the identical dog is man-made. T: Good job!

Step Ⅱ Reading

1. Fast reading Get the students to comprehend the passage quickly and accurately and meanwhile help the students form a good habit of reading. T: Have you got the answers of your questions? Now please skim the passage fast to obtain a general understanding of the whole passage. While reading, divide the whole passage into several parts and find out the main idea of each part. Show the following.

Para. 1 Cloning is a way of making an exact copy of another animal and plant. Para. 2 Cloning has two major uses. Para. 3 The problems of Dolly. Para. 4 The effect of Dolly. Para. 5 It is forbidden to clone human being. 2. Careful reading Ask the students to read the passage one paragraph by one paragraph, and finish the tasks of each paragraph. 1)

Paragraph 1 -The definition of cloning It happens both in ______ and in_______. They can be cloned by ________ and _______. What is cloning ?

Cloning is a way of making an exact copy of another animal and plant. 2) Paragraph 2-The major uses and procedures of cloning A. How many major uses do cloning have?

Firstly, …commercial…

Secondly, …research…

B. When was the cloning of Dolly the sheep born? 3)

Paragraph 3- The problems of Dolly At first, the fact that Dolly developed ______ in a natural way was __________. Later, the news _____she lived for six years, half the length of the life of the ______ one was __________. Finally, the problem that occurred to the scientists was that a cloned animal lives_____________

the original one. 4)

Paragraph 4-The impact of Dolly The word“controversial”in para 4 probably means ____________.

A. complicated

B. arguable

C. Important 5)

Paragraph 5- True or false: A. People feared that Cloned Hitlers would do harm to the world. B. All the research into human beings will be forbidden.

C. Some countries will use cloning in a wise way. 3.

After reading The writer’s attitude towards cloning-

A. Objective (be fair)

B. Negative (be against it)

C. Positive (be in favor of it) Step Ш Discussion Which is easier to clone, plant or animal? Step Ⅴ Homework Ask the students to do the following.

1. Translate the procedure of cloning Dolly the sheep into Chinese. 2. Finish Ex.1,2,3, Page12.