Using LanguageⅡ多媒体教案及点评

Book8unit2 cloning 教学设计

Period 2 Using language Reading、discussing & writing -Designed by Yuling Zhao Learning aims：

1. Activate the students to show their opinion about the cloning. 2. Learn to write the argumentative essay. 3. Develop the students’ sense of competition and cooperation. Learning important and difficult points：

Discussing and expressing oneself. Previewing case: See the movie Jurassic Park on weekend, ahead of this period. 1.

Are you familiar with the film? What animal do you see in the film? Are they real dinosaurs? 2.

Why do people like this film? 3.

Do you think there is any possibility that scientists bring extinct dinosaurs back to life as a clone ? Why (not) ? Exploring case: Step 1 Listening or skimming Deal with the following task after that: 1.

Match the main idea of each part. Part1 explain the impossibility of cloning dinosaurs Part2 conclude that it’s just a dream Part3 introduce the topic of the passage 2.

What does the author think of cloning extinct animals? 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. dreams of dinosaurs returning to the earth Step2 Scanning 1.

Give some reasons why it is either impossible or unsuitable to clone extinct animals.(grasp 3 key words) Reason 1: Perfect DNA is ___to obtain. (DNA) Reason 2: All the cloned animals have _______arrangement of genes so that there is _____________diversity in the group to resist diseases, which means they might die of ________illness. (diversity) Reason 3: A lack of __________ habitat. (habitat) 2.

Make a summary: Based on what we know now, you cannot clone animals that have been extinct longer than_______ years. So the chance of dinosaurs returning to the earth is merely __________. Step 3 Writing

1.

Writing- I : Have a short discussion in English(5ms) It is either impossible or unsuitable to clone extinct animals. But……

Are you in favor of cloning humans? What’re your reasons?

① Discuss in groups and write down the information you get (while group leaders write down at least two reasons for (dis)agreement on the whiteboard). ② The expressions( SBP18 Ex.3) may be helpful to you. 2 .Writing –Ⅱ

如何写辩论性议论文 (15ms) 【题目要求】

假如你是李华，你班同学最近参加了某报组织的一场讨论。讨论的主题是：要不要克隆人类。请你根据你班讨论的结果，给报社编辑投稿，客观的介绍讨论情况。

Guided writing: ①

审题构思：辩论性议论文；第一三人称；一般现在时

Para 1：引出问题，是否要克隆人类

Para 2：正反方观点

Para 3：陈述自己的看法

②

核心词汇想周全

③

遣词造句（参考句式如下，同时注意把讨论结果用适当的过渡词连接成文）

首段起始句（引出话题）： We have a discussion about whether- We have a heated debate on whether- Different students have different opinions. Students’ views on…differ from person to person.

主体段

（观点论证）： Some students approve of the idea /hold the view that- Some support it while others do not. About 65%students/ The majority hold different opinions/are against/object to…

末段（观点阐述） Personally, I (don’t) think it good to do…

As far as I am concerned, I firmly support the view that- 3.

Writing –Ⅲ

(8ms) Checking the articles : ① Ask the students to check the articles for their partners. ② Show some articles on the screen, and then other students should give some advice. Step 4 Homework Write down the composition in your exercise book. 湖北十堰房县一中高二英语组：赵玉玲