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視頻標簽：Cloning
所屬欄目：高中英語優質課視頻
視頻課題：人教版高中英語選修八選修8 Unit 2 Cloning Reading –山西省優課
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人教版高中英語選修八選修8 Unit 2 Cloning Reading –山西省優課
教學目標
Ability aims:
1. Develop the reading ability
2. Can talk about cloning
Emotional aims:
1. Know something about cloning.
2. Develop the sense of cooperative learning
3. Get to know the attitudes towards cloning.
2學情分析
高二普通班的學生,對于社科類的文章,在詞匯和理解上有一定的困難,所以要先從詞匯入手,幫助學生了解克隆的技術的相關術語,然后在閱讀中了解克隆的過程以及克隆技術給人類帶來的好處,在語言輸出上,適當地提供一些引導的語言,幫助他們完成語言的應用。
3重點難點
1. Let students learn more about cloning.
2. Get students to learn different reading skills,especially the reading ability of understanding implied meaning of the author’s.
4教學過程
4.1第一學時
4.1.1新設計
Step1. Preparing lessons &self-study and exploring the problems(探究問題,引出話題)
Warming up
Talk about the following questions:
1.What is cloning?
2.Cloning can be used in many aspects, do you think cloning is good or bad for human being?
[設計理念]
Get the Students to look through Warming-up and think about the two questions. One of the question can be found in the reading text, but another question “Is cloning good or bad ” that is still a question. So in reading,everybody should think about this question.After reading, Ss should try their best to find their answers.(The aim is to direct the students to know the topic and to gain the useful information about clone .
Step2.Finishing plan & improving skills(完成學案,提高技能)
Task1. Skimming
1. Cloning is a way of making an_____ _____ of another animal and plant.
2. Cloning has ______ ______ uses.
3. Cloning is used by gardeners to produce commercial quantities of ____.
4. Cloning is valuable for research on new plant species and for ____ on animals.
[設計理念]
Get the students to skim the passage---- CLONING: WHERE IS IT LEADING US? And do the above exercise .The task of skimming aims to help Ss get the actual information in their reading.Get students improve their reading ability of skimming in the limited time in particular.
Task2. Scanning
Read the short passages, choose the best one from A,B,C and D for each exercise in the following.
1. Dolly the sheep_____.
A. looked exactly like the sheep that provides the egg.
B. was the exact copy of the sheep that provides the nucleus.
C. looked like the sheep that gave birth to it.
D. had the characteristics of all three sheep.
2. It can be inferred from the passage that a cloned animal_____.
A. usually lives as long as the original one
B. usually lives longer than the original one
C. usually dies earlier than the original one
D. is usually as healthy as the original one
3. Which of the following is not an advantage of cloning?
A.Cloning can be used for medical purposes.
B.Large quantities of food can be produced by cloning.
C.Cloning can help keep animals from becoming extinct.
D.Famous persons who have passed away can be cloned.
4. We can use the skill of cloning to __________.
A. bring about global peace B. create other famous scientists
C. improve the development of learning language D. cure some special diseases
5. What are people cloning now ? __________
A. They are cloning trees, crops as well as animals B. They are cloning books and machines
C. They are cloning humans and animals D. They are cloning plants and science
[設計理念]
Get the students to scan the passage---- CLONING: WHERE IS IT LEADING US? and do the comprehensive exercises.
(The aim of this part is mainly to improve the students’ reading skills.)
Task3. The following statements are about cloning. Read them and decide if they are true or false.
1.Gardeners can make a lot of money by cloning plants. ( )
2.Cloning animals is as complicated as cloning plants. ( )
3.Dolly the sheep was the first successful clone of a mammal. ( )
4.Natural clones happen in animals as well as in plants. ( )
[設計理念]
Get the students to read the passage carefully, finding the useful information in the reading text. Then,do the exercise True of False according to the text. If the statement is wrong, you should give your reason and correct the sentence.
Task4. Explain the procedure of cloning.
This procedure aims to give the students an opportunity to show what they have learnt .
[設計理念]
This step needs students to express themselves after they finished the reading and comprehending. It also will help the Ss to state something freely. This step is very important to everybody.
Step3.Researching cooperatively& answering questions(合作探究, 解決問題)
Discuss the following questions with your classmates and change your ideas with others.After your discussion, finish the task “Interview”. In each group,several students should be the “journalists”,and each group must have at least one “interviewee” as the scientist who cloned Dolly the sheep.Prepare your interview,then give a good understanding of what you have learnt.When necessary, you can turn to teacher.
(1). Do you think successful clone is easy to achieve?
(2). How many kinds of animals have been cloned besides Dolly the sheep?
(3). Do you support the idea of producing human embryos for medical purposes?
(4). What benefits can humans gain from cloning?
(5). What problems may arise when humans are cloned?
(6). Could people clone a pet that has died?
(7). Do you think it is possible to clone humans?
(8). Should we clone human?
(9). What are the attitudes of different governments towards human cloning?(What about China?)
(10).Can you say something about the future of cloning?
[設計理念]
The presentation is mainly about some dialogues, Ss can work in groups to discuss the above questions and try their best to find the answers to these questions. In this group work, students can change their ideas with others. Finally, in group work , students can make up dialogues to show their roles play. This is the consolidation of this class.
Step4 Summary&Homework(總結復習,升華主題)
1.Sum up the advantages and the disadvantages of cloning.
2.Then write a composition about this topic.
[設計理念]
It is the step of summary. After this class, do the summary of this class, especially sum up the advantages and the disadvantages of cloning, then write a composition about this topic.This step will strengthen the reading and show the ability of students.
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