新课标人教版选修8 Unit 2 Cloning Using language Reading，discussing and writing教学设计

翟莉莉

Differ，exact，identical，complicated，pay off，breakthrough，cast down，arbitrary，fate，object，medium，obtain，conservative，accumulate，in favour of，owe，etc.

Ability goals

Enable the students to master some English expressions and phrases and to know some knowledge of cloning.

Learning ability goals

Enable the students to express their own opinions and write a debating passage.

Teaching important points

Let students learn to give reasons and debate.

Teaching methods

Skimming method

Task-based method

Discussing method

Teaching aids

A projector，a computer and a blackboard

Teaching procedures

Step 1：Greeting

Greet the whole class.

Step 2：Warming-up and Leading-in

1.Show students a short cartoon about dinosaur.

2.Let students talk about whether it is possible for people to clone a dinosaur.

3.Lead the topic of“The return of the dinosaurs”in.

Step 3：Reading

1.Fast-reading

（1）Skim the text and match the main idea with each paragraph.

（2）Let the students find out the writer’s attitude towards cloning and learn some words about different attitudes.

A.The popularity of films such as________，in which a scientist clones several kinds of______dinosaurs，proves how the idea_______a mixture of___________.

B.Scientists are still experimenting with cloning mammals.This is because they think it can make money.（False）

2.Detailed reading

（1）Read the first paragraph.

Let the students fill in a chart and do a“True or false”question.

（2）Read the second paragraph and do the following questions：

A.The animals that have disappeared from the earth，like dinosaurs，can be brought back to life through cloning.（False）

B.The___________is that you need perfect DNA.

C.All_____of cloning an animal will be_______if there is not enough_______in the group to________________.

D.Complete the following chart

_______for its impossibility·Perfect________is needed.·There is not enough_______in the group.A（n）__________would be needed for the cloned extinct animals.

（3）Read the third paragraph and complete the following chart.

_______________________ The chance of dinosaurs returning to the earth is______________.

Step 4：Discussing

Let the students enjoy a video about cloning human and then let them discuss whether we should clone human beings...

Step 5：Writing

Let the students learn to write a short passage about whether we should try to clone humans and encourage the students to express their own ideas.

Step 6：Homework

Surf the Internet and find more knowledge about cloning.

教学反思

本节课是人教版选修8第二单元的第二篇阅读，以“The return of the dinosaurs?”为话题展开，课型丰富，涉及读、说、写三个部分，是一篇Reading for discussing and writing的典型课例。下面笔者从两个方面对这节课进行总结和反思：

这节课的成功之处是组织科学、合理而紧凑。这篇文章简单易懂，生词量不大；可是由它所引出的话题的讨论和写作所需要的词汇量却是巨大的。除了学生原本的词料库以外，在阅读部分为学生做好词汇、语料、语法等准备也十分必要。在这节课中，笔者组织学生讨论，引导学生积极思考，调动学生对于争议话题的兴趣，并引导学生把观点写下来。这些课堂活动为接下来的写作做了很好的铺垫。在写作环节，笔者巧妙地设计了角色扮演活动，即“假设你是一名小记者，总结今天的辩论”，使学生带着荣誉感地去完成写作部分，上下承接。

这堂课也有不足之处。一是在时长控制方面，有些活动的时间不充足，有些基础薄弱的学生还未准备好就匆匆赶往下一环节。二是在reading中只引导学生搜索基本文本信息，而忽略了language的学习，如in fact，unfortunate等词作为很有力的带有感情色彩的转折词，在阅读中并没有带领学生去仔细研读和模仿，颇为遗憾。