课堂教学设计
一、学生课前、课外活动设计：
1. 预习和本节课有关的词汇，扫除词汇障碍。
2. 让学生通过小组协作，并且通过网络和其他的一些渠道了解克隆的一些基本情况。找有关克隆的辅助材料，如介绍克隆的文章、名人资料，帮助老师营造氛围。
3.以小组为单位，分工合作，通过到图书馆查阅资料或者利用网络，查找更多克隆的相关信息，为本小组赢得辩论做充足的准备。
二、课堂教学设计：
设计意图
In this period, let students know about cloning. And then they will be guided to read the passage—Cloning: Where is it leading us?. This passage is a factual piece of writing. It explaining some of the reasons why cloning is still controversial.
Warming Up is a cartoon about cloning to lead to the subject.
Pre-reading presents the concept of clone and some pictures about cloning and a video about 10 facts of cloning to arouse students’ curiosity about the passage and to activate student’s background knowledge.
Reading is a factual piece of writing. It explaining some of the reasons why cloning is still controversial. The passage consists of the procedure of animal cloning, the life of Dolly the sheep, the advantages and disadvantages of cloning and some of the reasons why cloning is still controversial.
教学目标
1. To learn about the procedure of cloning
2. To develop Ss’ reading skills of skimming and scanning
3. To grasp the advantages and disadvantages of cloning
教学重点
1. To learn about the procedure of cloning
2. To grasp the advantages and disadvantages of cloning
教学过程
Step I．Lead-in
（设计意图：通过漫画快速导入话题，引起学生对clone的兴趣，激活学生的思维。）
1. T: This class we will deal with the reading “ Cloning: Where is it leading us?”.
T: First, let’s look at a cartoon about cloning.
T & S: Look at a cartoon about cloning together
2. T: Now let’s see what clone is and the two kinds of cloning.
T & S: Look at the concept and the two kinds of cloning.
3. T : Now let’s watch a video about ten facts of cloning.
T & S: Watch the video.
Step II. Reading
（设计意图：Skimming和Scanning阅读方式有利于学生快速把握文章的主旨和整体结构，提高学生的阅读技能，帮助学生形成更高效、科学的阅读习惯。）
I. Skimming
T: Read the text quickly and try to finish true or false exercises within 3 minutes.
S: Skim the text and find out the answer. Then answer the question voluntarily.
II. Scanning:
T: Scan the text to get detail information about the procedure of cloning in 3 minutes.
S: Scan the text and finish the exercises. Then answer the question.
III. Careful Reading
（设计意图：在快速阅读的基础上，进行深层次精读，分析细节，提高学生的阅读技巧和阅读理解能力。）
T: Read the text carefully and silently to get the answers to the advantages and disadvantages of cloning.
S: Read the text carefully and silently and finish the exercises. Then answer the questions voluntarily.
T: Write the score on the paper.
IV. Post-reading
Debate: Should cloning ,especially cloning humans, be allowed?
（设计意图：任务型阅读完成后，学生对文章有了深层理解。在本环节中通过小组讨论，小组间辩论，可以锻炼学生的组织表达能力，进一步回顾课文并加以巩固。通过小组讨论，引导学生运用所学内容，阐述支持或反对cloning的原因。锻炼学生的应用英语的能力，开拓学生的思维并提高他们的语言表达能力。同时，通过小组合作，发展学生之间沟通和合作的能力。）
T: Discuss the topic among the group and then have a debate. (5 minutes)
S: Discuss the topic and choose a member to represent them . Then debate against the opposite group.
S(Judges): Write the score on a piece of paper. And at the end of the class, two judges write down the scores of each group on the blackboard and add up the scores.
T: Announce the final result.
S: Congratulate the winners.
评测练习
一、非测试性评价
1.自我评价
How well do you think you learned Passage 1 of Unit 2? Now rate yourself on a scale of five, one being low and five being high, and put it into your portfolio.
Things I can do
Evaluation
I can tell the procedure of cloning precisely.
5
4
3
2
1
I can tell the advantages and disadvantages of cloning.
5
4
3
2
1
I can adjust my reading strategies, ie, first read for the general idea and then read for detailed information.
5
4
3
2
1
I know some basic information about Cloning.
5
4
3
2
1
I still need more practice in_______________________________________________________
2.组内互评
在学习小组内进行互评，先由学生按下列表格中的指标自行测评，然后互评。
Check to see
assessment
Everybody participates in group activities and makes contributions to the group.
The group leader encourages each member to give his/her opinion.
Everybody listens to others carefully.
The task can be done successfully.
Everyone is happy with the cooperation.
We need to improve ______________________________________________ in group work.
二、测试性评价
Answer the following questions according to the text quickly.
What are the two major uses of cloning?
Why is it easier to make commercial plant clones than animal clones?
What was the first clone from an adult animal? At what age did this clone die?
Why is cloning controversial in some countries?
课件18张PPT。Cloning人教版高二英语Book8 Unit2Objectives:
1. To learn about the procedure of cloning
2. To develop Ss’ reading skills of skimming and scanning
3. To grasp the advantages and disadvantages of cloning
Clone? Natural cloneMan-made cloneNatural clone is one that occurs from the “parent ” in a natural form of cloning without human help. Man-made clone is one produced through human intervention(介入) . a way of making an exact copy
of another animal or plant.natural clonesnatural clonesman-made clones克隆的荧光小猪(左)和正常小猪(右)插入视频：1.Cloning means making a copy of an animal or a plant.
2.Gardeners can make a lot of money by cloning plants.
3.Cloning animals is as complicated as cloning plants.
4. Dolly the sheep was the first successful clone of a mammal.
5.Natural clones happen in animals as well as in plants.
FFFast readingHow does the cloning of Dolly the sheep work?Detailed reading Is cloning good or bad for us? Fill in the chart using the information from the text. Add one reason of your own in each column.Problems or dangers of cloningAnimal clones may develop the illnesses of older animals.Animal clones may die younger than the donor animals.Evil leaders may want to clone themselves.There are moral objections to cloning human beings.Advantages of cloningMedical cloning could produce cures for serious illnesses in humans. Cloning plants can produce plants of similar quality for sale.Cloning plants can be useful for research on new plant species.Cloning can help save endangered animals.DebateOh! My God! I was cloned!Should cloning ,especially cloning humans, be allowed?课后自我反思
本节课是阅读课，让学生对克隆这个熟悉的话题有了更多的了解，包括克隆的过程、Dolly the sheep的生活和克隆的优缺点及争议的原因。在本节课中设置了不同形式的问题，来帮助学生理解课文，使学生能够用所学的词汇与句式，并学会有条理地说出甚至是写出对于克隆的不同观点。指导学生利用Skimming和Scanning的阅读方法，通过“略读—细读—精读”的阅读手段，培养学生的阅读技巧和技能，帮助学生养成良好的阅读习惯。本节课是关于cloning的基本情况，通过学习课文，学生的知识面得到拓宽，提高他们的阅读积极性，增进了学生对于时事的理解能力，提高了学生的人文素养。在本节课的阅读中还分小组活动，有利于学生发展与人沟通和合作的能力，把自己的进步和团队的荣誉紧密结合。
课后对学生当堂学习效果的评测，使学生对自己本节课所学内容有正确的理解，有助于学生监控、调整自己的学习目标和学习策略，有助于学生增强英语学习的信心；但是我本人感觉结尾有些仓促，评价可以更合理、科学有效，在今后的教学中会更进一步探索、实践更多元化的评价方法。
