Using LanguageⅡ教学创新设计

阅读语篇教学设计

Cloning: Where is it leading us? 主题语境：克隆

语篇类型：介绍性文章

授课时长：一个课时（45分钟）

文本分析

本课是根据该单元话题“克隆”的一篇介绍性文章。该文章具体介绍了植物与动物克隆的区别、多莉羊的诞生与死亡以及由此引发的争论。帮助学生进一步认识克隆的意义在于解决医学上的难题，为人类服务。文章训练了学生的阅读技能并了解克隆这门生物技术以及有关的争议。重点词汇主要涉及克隆的过程，引发的争议等，如：straightforward, undertake (undertook, undertaken), breakthrough, procedure, carrier, arbitrary, objections, impact, obtain, conservative, moral等，句式主要涉及有用while的对比，名词做同位语和同位语从句等。本文的词汇较难，在描述克隆带来的争议时采用列举的方式描述了来自社会的各种看法。本文的价值取向在于学生通过了解克隆这门生物科技以及有关的争议，整理归纳克隆的利弊以及克隆技术的反思，懂得克隆技术的真正意义。

学情分析

本班学生英语基础较好，学习态度比较认真，对英语的学习热情度高。由于选考科目有化学和生物，因此对克隆这一生物技术应该比较了解。学生基本已具备在阅读中获取细节信息的能力，部分学生能用英语表达自己的观点，大部分学生能用较完整的句子写下自己的看法。但是有大部分学生整合知识和分析判断能力有所欠缺，对问题的深度思考不够，有时候不能在已有的知识基础上进一步拓展。

教学目标

在本课结束时，学生能够：

1.

了解什么是克隆、克隆的种类，多莉羊的诞生和死亡及其所带来的影响；

2.

概括、分析克隆技术的利弊及各国各阶层对这一技术作出的反应；

3.

通过阅读文本分析作者观点并表达自己的看法

4.

总结克隆技术给人类带来的好处以及思考未来我们应该怎样将这一技术应用于更多的领域。

教学重点

学生通过阅读，了解什么是克隆，克隆的种类和应用以及克隆结束带来的影响和利弊。

教学难点

整理分析克隆技术所产生的利弊以及未来克隆将在哪些领域为人类带来好处。在最后的讨论环节需要对文本信息进行分析并对作者的观点作出判断；最后的知乎发帖需要总结克隆技术为人类发展所带来的利弊，将克隆技术应用于对人类真正有用的领域。

教学资源

教材，多媒体课件，学案，黑板，粉笔，遥控笔

教学过程

步骤

教学活动

Lead in(pre-reading) Step 2 设计意图

互动时间&模式

2’

T Watch a very short cartoon story: Mary 通过卡通图画故事and her friends are chatting and the friend 引出文章的主题：克found a man walking in the garden; Mary 隆

explained that was her once dead husband who was cloned by her. T asked question: how much do you know about cloning? T directs Ss attention to the text Reading for structure and general idea: Ss read follow the tape for the whole passage and find out key words in the text or summarize a word to tell the general idea of each paragraph. 听读课本，找到每个段落的关键词或者自己的词概括段落大意，了解文章结构。

Reading Step 2

5‘

IW

T invites some of the students to complete

the general idea of each paragraph by giving the words Para1. The ________ of cloning. (definition) Para2. The major _____ and _______ of cloning of Dolly. (uses; procedures) Para3. The ______ of Dolly. (problems/death) Para4. The _______ of Dolly. (effect/impact) Para5. People’s ______ to cloning. (reactions/arguments)

Step 3

Step 4

Reading for detailed information: *T Asks students to read paragraph 1 carefully and finish two tasks. Task 1. Find out the definition of cloning.

Definition: It is a way of making an exact copy of another and plant. Task 2. Complete the sentence by using the proper words according to your understanding: It happens both in plants and in animals. They can be cloned by themselves and humans.

*T concludes that from paragraph 1, we can see there are two kinds of clone, one called natural and another called man-made clone *Ss are encouraged to read paragraph 2 and find out the two uses of cloning.

T asks Ss to answer the questions 1.

What are the two uses? (firstly...commercial/ secondly... research...) 2.

T or F question: Cloning animals is as complicated as cloning animals. (F) (Cloning plants is straightforward while

cloning animals is very complicated.) *T asks students to pay attention to the sentence structure “while”. *T: Although cloning animals are more 通过文章内容的精细阅读，获得细节信息，并从中推测一些关键信息,为后面的小组讨论掌握必要的信息。

关于陈述argument的开头等句型，比如firstly/secondly...

关于while的对比用法。

3’

CW IW

5’

CW IW

Step 5

Step 6

Step 7

complicated, through scientists’

determination and hard work, Dolly the sheep was produced. *T shows a Chinese version of the procedure of Dolly, and explains some of the key procedures. *Ss are encouraged to read paragraph 3 & 4 to find out the problems and effect of Dolly. T will ask Ss to firstly complete the sentences by paying attention to the appositive clause and then take a deep look into the fact. Keys sentences:

1.

At first, the fact that... was encouraging; later, the news that...was disturbing. Conference from the text:

2.

Finally, the problem that occurred to the scientists was that a cloned animal lives shorter than the original one. (3options for Ss: as long as/shorter than/longer than) *T asks the following questions: 1.

Since a cloned animal lives shorter than the original one, what is the effect of the consequence of Dolly? (controversial) 2.

What does controversial mean? (It means arguments will arise among people) *T asks the Ss to read paragraph 5 carefully and collect information to complete the chart below: People’s reaction towards cloning:

5’

CW IW

关注本单元名词性

从句的用法。

通过文章文本信息

的理解，推测词义，

并引出下一个段落

关于人们对克隆技

术产生的不同反应3’

GW 和争议。

CW Newspapers Feared evil leaders

would clone 不同的人对于克隆

技术的反应都不一

themselves 样，而科学家们对克

Religious leaders Moral problems Governments Nervous and 隆的未来依然觉得

是个未知数。

conservative

Some... Reformed ... and

forbade...

Other countries Continued to

accumulate...

Scientists

?

*Ss are asked to choose the answer to the

question according to their understanding

在文本理解的基础2’

from paragraph 5.

用中文版的多利羊示意图帮助学生更好地理解多利羊的产生过程。

Step 8

According to para 5, which of the following would NOT happen if people were to be cloned?

(B) A.

Cloned Hitlers would do harm to the world. B.

Cloned people may be killed at will for medical aid. C.

A woman would have difficulty recognizing her real husband. D.

Men would die out because a woman can give birth to a baby without a husband. 上，让学生更深层次理解克隆技术的产生在克隆人类的时候会产生的一系列后果。

通过对文中信息的进一步回顾，概括出克隆的利弊，同时为后面的活动做好铺垫。

IW

Post-reading Discussion (revision of the whole text) *Ss are encouraged to go through the text again and summarize the advantages and disadvantages of cloning. Work in groups to make a list. Advantages cloning

of Disadvantages of cloning

5’

GW CW IW

Possible answers:

advantages of cloning: 1. to produce commercial quantities of plant -- good for farmers; 2.To research on new plant species--good for gardeners; 3. to help cure serious illness-- good for doctors; 4. to do medical research on animals/to help bring back the extinct animals--good for scientists. Disadvantages of cloning: 1.animal clones may die younger than the original one; 2.animal clones may develop the illness of older animal. 3.

Evil leaders may want to clone themselves. 4.

There are moral problems to cloning human beings.

Step 9

Step 10 Reading for thinking T asks Ss to think about the writer’s opinion towards cloning. Three options are provided: A Objective (be fair); B Negative (be against it); C Positive(be in favor of it) The answer is A. And then T continues to ask: What is your opinion? Group work: discussion and writing *T asks whether Ss have heard about Zhihu, which is a discussion website where people will raise a lot of heated topics.

Ss are asked to launch a post on Zhihu to state their opinion towards cloning. Task for the students are like this: 1.

Each group forms opinions; 2.

State your supporting ideas by what we have learned today to become a sticky (精华帖) or top post (置顶帖). Tips for Ss: You post should include: 1.

State your opinion first 2.

Reasons why you think so (supporting ideas) 3.

Conclusion

*Ss are encouraged to present their discussion and writing to the whole class.

让学生推测课文作者的观点是考察学生对文本整体理解。

小组合作一起写一个关于对克隆技术观点的帖子，发到知乎网上。既是对文章的本文知识的概括延伸，也是对写作能力的一种练习，同时也考察学生是否能运用课堂中所列出来的关于陈述观点的句型。

学生展示小组合作成果。

1 IW

8’

GW CW Homework *Surf the Internet for more information of the cloning technology; *Complete and improve your post. 备注：

1’

Ss：Students

T: Teacher

IW: Individual work

GW: Group work

CW: Class work Blackboard Design Unit 2 Cloning Definition: cloning: exact copy of animal / plant (natural/man-made) 2 uses:

commercial

complicated

Research

Dolly the sheep

Encouraging

disturbing

Controversial (arguments)

Your opinion?