人教版高中英语选修8《Unit 2 Cloning》教案【一】
教学准备
教学目标
一、 语言知识目标
初步理解、掌握课文中关于克隆的词汇，学习分析课文中的长难句子。
二、 阅读技能目标
1. 能获取和处理文章中的主要信息。
2. 能够掌握文中出现的重要的语言知识
三、 学习策略目标
掌握速读、略读、猜测词义等阅读策略。
四、 情感态度目标
让学生认识到克隆的利和弊。
五、 文化意识目标
了解克隆，正确地利用克隆技术来为人类服务。
教学重难点
初步理解、掌握课文中关于克隆的词汇，学习分析课文中的长难句子。
教学过程
Step 1 Daily report
One student comes to the front and gives a report about advantages and disadvantages of science and technology.
Step 2 leading-in
The teacher shows some pictures and starts a discussion about cloning.
Step 3 Skimming
Task 1: What’s the main idea of the passage?
Task 2: Match the main idea with each paragraph
Para 1: A. People’s attitude towards cloning.
Para 2: B. The problems of Dolly.
Para 3: C. The impact of Dolly.
Para 4: D. Two major uses and the procedure of cloning.
Para 5: E. The definition(定义)of cloning.
Step 4 Scanning
Task 1. Look through Para 2 and answer the following questions.
(1) What are the two major uses of cloning?
(2) Which one is easier, to make plant clones or animal clones?
Task 2. Look through Para 3 and fill in the chart.
Task 3. Do the following translation and word guessing.
(1). Translation:
On the other hand, Dolly’s appearance raised a storm of objections and had a great impact on the media and public imagination.
(2). The word “controversial” in paragraph 4 probably means_________.
A. complicated B. arguable
C. important D. valuable
Task4. Do the following Tor F questions based on Paragraph 5.
1. People feared some evil leaders might use cloning to reach their goal.
2. All the research into cloning will be forbidden.
3. Religious leaders are in favor of human cloning.
Step 5 Enjoy beautiful sentences
1. Cloning plants is straightforward while cloning animals is very complicated.
2. At last the determination and patience of the scientists paid off.
3. The fact that she seemed to develop normally was very encouraging.
Step 6 Question and answer
This part is for students to find if they still have questions. If there is any, they can ask their classmates to help them.
Step 7 Quiz
Note: This part is very challenging. In the picture there are five numbers. Students can choose their lucky number and answer questions. Most of the questions are based on what they have learned in class.
Step 8. Test yourself
Fill in the blank with proper words.
Cloning is a way of _______ (make) an exact copy of another animal or plant. It has two major uses. One is _______ gardeners use it to produce plants. The ______ is that it is valuable for medical research on animals. ________, the process of cloning is difficult ___________ (undertake).
The first successful clone, Dolly the sheep, made the whole _________ (science) world follow its progress, though it had ________ problems than the normal sheep. On the other hand, Dolly’s appearance _______ (raise) a storm of objections and had a great impact ______ the media and public imagination. Different people have different opinions on it. However, scientists still wonder ______ cloning will help or harm us and where it is leading us.
Step 9 Debate
Topic: Are you for or against cloning?
课后小结
Homework
Write a passage entitled My view on cloning.
课后习题
评测练习主要有两个。
一是quiz 环节：
主要有5个问题：
1. Listen to a part of an English song and try to learn from it.
2. Please use “pay off” to make a sentence.
3.Give us some detailed information about Dolly.
4. Translate the following sentence into English.
另一方面，多利羊的出现引起了一阵强烈的反对，对媒体和公众的想象力也产生了极大的影响。
5. What is your attitude towards cloning? Give your reason.
二是test yourself 环节：
Fill in the blank with proper words.
Cloning is a way of _______ (make) an exact copy of another animal or plant. It has two major uses. One is _______ gardeners use it to produce plants. The ______ is that it is valuable for medical research on animals. ________, the process of cloning is difficult ___________ (undertake).
The first successful clone, Dolly the sheep, made the whole _________ (science) world follow its progress, though it had ________ problems than the normal sheep. On the other hand, Dolly’s appearance _______ (raise) a storm of objections and had a great impact ______ the media and public imagination. Different people have different opinions on it. However, scientists still wonder ______ cloning will help or harm us and where it is leading us.
从同学们的答题效果来看，学生们回答问题的积极性很高，准确率在98%以上。
人教版高中英语选修8《Unit 2 Cloning》教案【二】
核心单词
1. differ
v. 不同;相异;使¡¡相异
常用结构：
A differs from B in ...A与B在¡¡方面不同
A differs with B about/on/over... A与B就¡¡意见相左
Their house differs from mine in having no garage.
他们的房子与我的不同，区别在于他们的没有车库。
The two sides still differ with each other over the question of pay.双方在报酬的问题上仍各持己见。
联想拓展
difference n. 不同之处
different adj. 不同的
make a difference to 对¡¡产生变化;对什么有
影响
different from 与¡¡不同，不同于高手过
招
高手过招
用适当的介词填空 (原创)
①The two squares differ colour but not size.
②The husband differs the wife who is to take charge of the money.
③It doesnt make a difference me whether you are going to stay.
④This is a different car the one I drove yesterday.
答案：1. ①in; in ②with; on/about/over
③to ④from
2. undertake
vt.(undertook;undertaken)着手;从事;承担;保证，答应
常用结构：
undertake sth. 着手/从事/承担某事
undertake to do sth. 保证/答应做某事
undertake that ...保证¡¡
The scientist undertakes the experiment.
这位科学家从事这项实验。
I can undertake the responsibility for the changes.
我愿意承担这些变革的责任。
The lawyer undertook a new case.
那个律师接了一个新的案子。
He undertook to finish the job by Friday.
他答应星期五之前完成这项工作。
高手过招
翻译句子 (原创)
①他下个月要去西部旅行。
He will undertake a journey to the west next month.
②我不能保证按时做完它。
I cant undertake that Ill finish it on time.
3. objection
n. 不赞成;反对;异议
常用结构：
have an objection to ... 反对¡¡
raise/voice an objection 提出异议
联想拓展
object v. 反对，不赞成
n. 物体;目标
object to sb./sth. 不赞成某人/某事
object to doing sth. 反对做某事
object that ... 反对¡¡
No one objected to the plan.没有人反对这项计划。
We object to being treated like this.
我们反对受到这样的待遇。
Why do some people object to human cloning?
为什么一些人反对克隆人类呢?
Mother objected that Jimmy was too weak to take up the job.
母亲反对说，吉米身体太虚弱，不能承担那份工作。
The building is the main object of his interest.
他最感兴趣的是这栋建筑物。
高手过招
单项填空
We to punishing a whole group for one persons fault. (2010¡¤01¡¤江西南昌检测)
Complain B. object C. oppose D. resist
解析：选B。句意为：我们反对因为一个人的错误而惩罚整体。object to doing sth.反对做某事。
4. obtain
vt. 获得;赢得
易混辨析
obtain/acquire/gain/earn/achieve
obtain意为“获得，买到”。指通过努力或请求而得到，含有满足要求或得达到目的的意味，用于正式语体中。
acquire意为“经过努力逐步获得才能、知识、习惯等，也可用于表示对财物等的获得”，强调“一经获得就会长期持有”的含义。
gain意为“通过较大努力获得某种利益或好处;亦可指军事上的武力夺取等”。
earn意为“挣得，赢得”，指因工作等而得到报酬或待遇。
achieve意为“得到;获得”，多指成就、目标、幸福的取得。
He failed to obtain a scholarship.
他没有获得奖学金。
I finally managed to obtain a copy of the report.
我终于设法弄到了这个报告的副本。
We should try to acquire good habits.
我们应该努力养成好习惯。
He found it easy to earn extra money.
他发现赚点额外收入很容易。
But we can only achieve it together.
然而，只有共同奋斗才能实现它。
高手过招
翻译句子 (原创)
①The journalist immediately set out to obtain these important facts.
那位新闻记者立即着手获取这些重要的事实。
②Knowledge can be obtained through study.
知识可通过学习获得。
5. forbid
vt. (forbade/forbad; forbidden) 禁止;不准;阻止;妨碍
常用结构：
forbid sth./doing sth. 禁止，不许(做某事)
forbid sb. to do sth. 禁止某人做某事
The law forbids the use of chemical fertilizers.
法律禁止使用化学肥料。
I forbid you to tell anyone.
我不准你告诉任何人。
高手过招
翻译句子 (原创)
①飞机上禁止吸烟。
Smoking is forbidden on the plane.
②他爸爸不准他和她交谈。
His father forbade him to talk to her.
③要禁止小孩不玩电脑游戏很难。
It is hard to forbid children to play computer games.
6. owe
vt. 欠(账、钱、人情等);应该把¡¡归功于¡¡;感激，感恩
常用结构：
owe sb. sth. = owe sth. to sb. 欠(某人)债
owe sth. to sb./sth.将某事物归因或归功于某人/事
He owes his father ￡50. = He owes ￡50 to his father.
他欠他父亲50英镑。
We owe this discovery to Newton.
我们把这一发现归功于牛顿。
高手过招
用适当的介词填空 (原创)
①How much do I owe you the groceries?
②He owes his success more luck than ability.
③I owe a lot my wife and children.
答案：①for②to; to③ to
7. resist
vt.抵抗;对抗
常用结构：
resist sth. 抵制;阻挡某事
resist doing sth. 反对做某事
cant resist doing sth. 忍不住做某事
The nation was unable to resist the invasion.
该国无力抵抗侵略。
A healthy body resists disease.
健康的身体能抵御疾病。
I could hardly resist laughing.
我忍不住笑了。
resistance n. 抵抗，反抗;抵抗力
resistant adj. 抵抗的;有抵抗力的
be resistant to sb./sth.对某人/某事有抵抗力
resister n. 抵制者;抗拒者;电阻器
高手过招
翻译句子 (原创)
①He resisted being carried off.
他阻挡别人把他带走。
②She can not resist the temptation of chocolate.
她无法抗拒巧克力的诱惑 。
重点短语
8. pay off
得到好结果，取得成功(常用主动语态);偿清债款;付清工资解雇;(对¡¡进行)报复;收买(某人)
At last, his hard work paid off.
最后，他的努力得到了回报。
Did your plan pay off? 你的计划成功了吗?
联想拓展
pay for付¡¡的钱;为¡¡而付出代价
pay back sth./pay sb. back sth. 偿还某物/偿还某人某物
pay sb. ...for sth. 因某事而付给某人¡¡
pay sb. ...to do sth. 付给某人¡¡去做某事
pay sb. back for sth. 向¡¡报复
高手过招
(1)单项填空
If you go for a long ride in a friends car, its the custom to offer to some of the expenses. (2010¡¤01¡¤江苏启东检测)
A. pay B. pay off C. pay for D. pay back
(2)用pay的相关短语填空(原创)
①After ten years of hard working she finally
her debt.
②Our efforts are sure to .
③Have you the milkman this week?
④Have you the money the bank yet?
⑤I will you next week.
答案：(1)解析：选C。根据句意可知，这里表示¡°为¡¡偿付一部分费用¡±，故选C。pay for 为¡¡而付钱;为¡¡付出代价。
(2)① paid off②pay off③paid④paid; to⑤pay; back
9. in favour of
赞成;支持;有利于;主张
I am in favour of stopping work now. 我赞成现在停止工作。
in sb.s favour 对某人有利
do sb. a favour /do a favour for sb. 帮某人忙
do sb. the favour to do sth./do sb. a favour by doing sth.帮助某人做某事
favour vt. 赞同;支持
The child favours his father with his brown eyes.
这个孩子棕色的眼睛像他的父亲。
温馨提示
表示¡°支持，赞同某人/某事¡±除了用in favour of之外;还可以用：be for sb./sth.; stand on ones side等。
be against sb./sth.表示¡°不支持，不赞同某人/某事¡±。
高手过招
(1)单项填空
I dont like to ask people for help as a rule but I wonder if you could me a favour. (2010¡¤01¡¤江苏启东检测)
A. make B. do C. find D. get
(2)用方框内所给短语的适当形式填空 (原创)
in case of/in consequence of/in favour of/in possession of
①All his family are his decision to work in western area after graduation.
②While reading, coming across new words, you¡¯d better guess their meanings rather than refer to the dictionary.
③Mary told me that she was some lovely jewels.
④They had to move to another city the typhoon.
答案：(1)解析：选B。句意为：通常我不喜欢向别人寻求帮助，但我希望你能帮我的忙。do sb. a favour 帮某人忙。
(2)①in favour of ②in case of
10. (be) bound to do ...
一定或注定(做)¡¡
The weather is bound to get better tomorrow.
明天天气一定会变好的。
Youve done so much work that youre bound to pass the exam.你下了这么大功夫, 一定能通过考试。
联想拓展
bound v. 跳跃;限制;形成¡¡的界限
n. 跳跃;界限;范围
adj.必然的,一定的
be bound to sth. 受¡¡限制;被¡¡所束缚
be bound for 准备到¡¡去;开往;去¡¡地方
be bound up with 与¡¡有密切关系
高手过招
用括号内所给词语的适当形式填空 (原创)
①These problems were almost bound (arise).
②When you are dealing with so many patients, mistakes (bound) happen.
答案： ① to arise ②are bound to
11. be in good/poor condition
状况很好(坏);情况很好(坏)
联想拓展
out of condition 状况欠佳
working/living/studying conditions工作/生活/学习环境
on condition (that)... 在¡¡条件下;
倘若¡¡
on no condition 一点也不; 决不
in excellent condition 处于极佳的状况
The ship is not in a condition/is in no condition to make a long voyage. 此船的现状不适宜远航。
The car is still in excellent condition. 这辆汽车状况极佳。
高手过招
用适当的介词填空 (原创)
①The car has been well maintained and is excellent condition.
②He¡¯s excellent condition a man of his age.
③I had no exercise for ages; Im really of condition.
④You can go out condition that you wear an overcoat.
答案：① in ②in; for ③out ④on
重点句型
12. Then came the disturbing news that Dolly had become seriously ill.
接着传来了多莉病重的坏消息。
当时间副词now, then位于句首，谓语是come, appear等表示¡°出现¡±一类的动词时，主句用全倒装语序。
Now comes your turn. 现在轮到你了。
高手过招
单项填空
In the dark forests , some large enough to hold several English towns. (2010¡¤01¡¤河南镇平检测)
A. stand many lakes B. lie many lakes
C. many lakes lie D. many lakes stand
解析：选B。考查词语辨析及倒装语序。当地点状语位于句首时，主句用全部倒装，表示某物存在于某处，应用动词lie。