【連載】英語(yǔ)：人教版-高中 選修8-Unit 2 Cloning 教學(xué)設(shè)計(jì) 教案

Step 1 Daily report

One student comes to the front and gives a report about advantages and disadvantages of science and technology.

Step 2 leading-in

The teacher shows some pictures and starts a discussion about cloning.

Step 3 Skimming

Task 1: What’s the main idea of the passage?

Task 2: Match the main idea with each paragraph

Para 1:        A. People’s attitude towards cloning.

Para 2:        B. The problems of Dolly.

Para 3:        C. The impact of Dolly.

Para 4:        D. Two major uses and the procedure of cloning.

Para 5:        E. The definition（定義）of cloning.

Step 4 Scanning

Task 1. Look through Para 2 and answer the following questions.

(1) What are the two major uses of cloning?

(2) Which one is easier, to make plant clones or animal clones?

Task 2. Look through Para 3 and fill in the chart.

Task 3. Do the following translation and word guessing.

(1). Translation:

On the other hand, Dolly’s appearance raised a storm of objections and had a great impact on the media and public imagination.

(2). The word “controversial” in paragraph 4 probably means_________.

  A. complicated                  B. arguable         

  C. important                      D. valuable

Task4. Do the following Tor F questions based on Paragraph 5.

1. People feared some evil leaders might use cloning to reach their goal.

2. All the research into cloning will be forbidden.

3. Religious leaders are in favor of human cloning.

Step 5 Enjoy beautiful sentences

1. Cloning plants is straightforward while cloning animals is very complicated.

2. At last the determination and patience of the scientists paid off.

3. The fact that she seemed to develop normally was very encouraging.

Step 6 Question and answer

This part is for students to find if they still have questions. If there is any, they can ask their classmates to help them.

Step 7 Quiz

Note: This part is very challenging. In the picture there are five numbers. Students can choose their lucky number and answer questions. Most of the questions are based on what they have learned in class.

Step 8. Test yourself

Fill in the blank with proper words.

Cloning is a way of _______ (make) an exact copy of another animal or plant. It has two major uses. One is _______ gardeners use it to produce plants. The ______ is that it is valuable for medical research on animals. ________, the process of cloning is difficult ___________ (undertake).

     The first successful clone, Dolly the sheep, made the whole _________ (science) world follow its progress, though it had ________ problems than the normal sheep. On the other hand, Dolly’s appearance _______ (raise) a storm of objections and had a great impact ______ the media and public imagination. Different people have different opinions on it. However, scientists still wonder ______ cloning will help or harm us and where it is leading us.

Step 9 Debate

Topic: Are you for or against cloning?

Homework

Write a passage entitled My view on cloning.

評(píng)測(cè)練習(xí)主要有兩個(gè)。

一是quiz 環(huán)節(jié)：

主要有5個(gè)問(wèn)題：

1. Listen to a part of an English song and try to learn from it.

2. Please use “pay off” to make a sentence.

3．Give us some detailed information about Dolly.

4. Translate the following sentence into English.

另一方面，多利羊的出現(xiàn)引起了一陣強(qiáng)烈的反對(duì)，對(duì)媒體和公眾的想象力也產(chǎn)生了極大的影響。

5. What is your attitude towards cloning? Give your reason.

二是test yourself 環(huán)節(jié)：

Fill in the blank with proper words.

Cloning is a way of _______ (make) an exact copy of another animal or plant. It has two major uses. One is _______ gardeners use it to produce plants. The ______ is that it is valuable for medical research on animals. ________, the process of cloning is difficult ___________ (undertake).

      The first successful clone, Dolly the sheep, made the whole _________ (science) world follow its progress, though it had ________ problems than the normal sheep. On the other hand, Dolly’s appearance _______ (raise) a storm of objections and had a great impact ______ the media and public imagination. Different people have different opinions on it. However, scientists still wonder ______ cloning will help or harm us and where it is leading us.

從同學(xué)們的答題效果來(lái)看，學(xué)生們回答問(wèn)題的積極性很高，準(zhǔn)確率在98%以上。