Using LanguageⅡ名师课堂实录

人教版高二英语选修八第二单元《Cloning》教学案

Book 8 Unit 2 Cloning

Period 1:

Warming up & Reading 主备课人：王亮琴 审核人：艾卫斌 Learning aims:

1．Get students to learn the useful words and expressions in this unit. 2．Help students to learn about cloning.

3．Encourage students to express their opinions toward cloning. Learning key and difficult points: 1.Fully understand the content of the text. 2. Understand the advantages and disadvantages of cloning. 【词汇词组预习】(预习探究)1._____________ vt.投，抛；投射

6._____________ adj.不能的，不会的

2._____________ v.烦扰，打扰 7._____________ vt.&vi. 打，撞击 3._____________ vt. 禁止；妨碍

8._____________ vt.抵抗；对抗

4._____________ vi. 相异；意见分歧 9._____________ adj.合情理的

5._____________ vi.退休，离开 1.

使沮丧

2.

赞成，支持

3.

反对

4.

一定；注定

5.

不时

6.

使复生

7.

白费力气

8. 情况/状况很好（坏）

9.

与…不同

10. 对…有影响

11.得到好结果，取得成功(常用主动态)；偿清债款；

1. Warming-up: Discuss the following questions.

(方向探究)

1). Can you see any cloning happen in our daily life? 2). What benefits can humans gain from cloning? 3). What problems may arise when humans are cloned? 4). Should we clone a human?

2. Skimming: match the main idea with each paragraph (自主探究) Para.1 A. Two major uses and the procedure of cloning. Para.2

B.

Cloning is a way of making an exact copy of another animal or plant. Para.3 C. The effect of Dolly the sheep. Para.4 D. It is forbidden to clone human beings. Para.5 E. The problem of dolly the sheep

3. Reading comprehension: (自主探究)

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人教版高二英语选修八第二单元《Cloning》教学案

1. The main idea of the text is____

A. animal cloning is very valuable and can benefit the world.

B. animal cloning could be misused by bad people so it must be forbidden. C. animal cloning is well developed because Dolly the sheep was born.

D. animal cloning raised arguments and scientists are not sure about its future. 2.The cloning of Dolly the sheep succeeded because____.

A. its easier to clone a sheep than other animals

B. the scientists were determined and worked hard with patience C. the scientists were rewarded and got lots of money D. many other attempts to clone mammals failed 3. What is the writer’s attitude toward cloning in this passage?

A. The writer is against cloning. B. The writer is in favor of cloning. C. The writer is neutral towards cloning. D. The writer is in agreement with cloning. 4. What is the writing style? A. Expositive

（说明性的）

B.Descriptive （描写性的）

C. Argumentative

（议论性的）

D. Narrative （叙事性的）

4. Fast reading: True or False questions

(合作探究)

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.

5. Discussion :

(应用探究)

Discussion the following two questions based on your understanding the text.

What are the advantages and disadvantages of cloning?

Are you in favor of cloning or against it? Give your reasons.

6. Homework: （延伸探究）

Read the text again after class and tick out the difficult sentences and knowledge points. 【师生反思】

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人教版高二英语选修八第二单元《Cloning》教学案

Period 2: Language points 主备课人：王亮琴 审核人：艾卫斌 Learning aims:

Ask the students to learn about the words, phrases and sentences by themselves, cultivating their ability of autonomous learning Teaching emphasis: Enable students to grasp the usages of the important new words and expressions

Language points（自主、合作探究）（参考优化设计）

1.

differ vi.

不一致, 不同, 相异, 不同意, 意见相左

常见的搭配有：

A and B differ in …

A differs from B 拓展: different

adj.

difference n.差异, 差别, 分歧, 争论, 差额

be different from

与…不同

make a difference to起作用,产生影响

make no difference to sb. 对没有影响

2. undertake vt.实施，从事，着手做，承担,

担任, 许诺, 保证，采取,答应

undertake sth 承担某事

undertake a task/ project 承担一个任务/项目

undertake that …

保证…

即时练习：完成下列句子。

•

He _________ __________ ___________ ____________(承担了一项新任务). •

我愿意承接这项变革的责任。

•

I can _______ ________ __________ for the changes. 3. cast down：feeling unhappy and depressed使沮丧, 低沉，

使下降, 推翻

be cast down = feel discouraged

He was much cast down by the failure of the experiment. Don’t be so cast down. Just keep up your spirits.

即时练习：将下列句子译成英语

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人教版高二英语选修八第二单元《Cloning》教学案

听到这个消息他很沮丧。

_____________________________________________________________ 4. forbid vt. (forbade /forbad, forbidden, forbidding) 禁止，不准，不许

forbid sth.

forbid doing sth. 即时练习：完成下列句子

(1) The school

__________ ___________

___________ __________

___________ (禁止学生吸烟). (2) He is forbidden

________ __________ _____________ ___________ (进入这个房间). 5. in favour of

赞成；有利于

(与against相对) Is he in favour of the plan? 他赞成这项计划吗？

拓展：in sb’s favor对某人有利

do sb a favor =do a favor for sb 帮某人忙做

6. Object to

反对；不同意

object to sb/sth 反对/不赞成某人某事

object to doing sth 反对做某事

have/make an objection to (doing) sth对表示反对

即时练习：将下列句子译成英语

学生反对像孩子似地被对待。

_____________________________________________________________ 【师生反思】

______________________________________________________________________ ______________________________________________________________________ _______________________________________________________________________ ______________________________________________________________________ forbid sb. to do sth. forbid that…

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人教版高二英语选修八第二单元《Cloning》教学案

Period 3:

Grammar 主备课人：王亮琴 审核人：艾卫斌 Teaching aims:

Enable students to use the use of the Noun Clauses to solve the problems. Teaching emphasis:

Get students to learn and master the use of the Revise Noun Clause as Appositives. 1.

Understand the underlined sentences. (方向探究) Para. 3

Line 1: The whole scientific world followed the progress of the first successful clone, Dolly the sheep. Para. 3

Line 2: The fact that she seemed to develop normally was very encouraging. Para. 3

Line 2:Then came the disturbing news that Dolly had become seriously ill. Para. 3

Line 6: Altogether Dolly lived for six years, half the length of the life of the original sheep.

2.

同位语从句the Appositive clause (自主、合作探究）

在复合句中用作同位语的从句称为同位语从句。同位语从句是名词性从句的一种。它在句中起同位语的作用。

它一般跟在某些名词后面，用以说明该名词表示的具体内容。

例如：I heard the news that our team had won．

(that从句是对the news具体内容的解释) 。

可以跟同位语从句的名词通常有：

fact, news, idea, truth , hope , problem, information, belief, thought, doubt, promise, message ,question , word（消息）,possibility等。

3. 正确理解和使用同位语从句，还应注意以下几点： ①

分隔同位语从句：有时同位语从句与其先行词被其它成分分隔开来，这种分隔主要出于修辞原因，即为了保持句子结构平衡，避免头重脚轻。 The whole truth came out at last that he was a wolf in sheep’s clothing . 真相终于大白了，他原来是只披着羊皮的狼。 ②

在某些名词后的同位语从句中，其谓语动词应用虚拟语气形式：（should） + 动词原形。常见的名词有advice , idea , order , demand , plan , proposal , suggestion , request 等。

如：The suggestion that a new bridge (should) be built was accepted . 采纳了在这里修建一座新桥的建议。 ③

同位语从句的先行词往往没有复数形式。例如: 他要来教我们英语的消息昨天我就听说了。 （正）The message that he would teach us English reached me yesterday . （误）The messages that he would teach us English reached me yesterday . 4. 同位语从句与定语从句的区别:

①同位语从句说明的名词大都是抽象名词; 定语从句所修饰、限定的名词或代词有抽象的也有不抽象的 . We express the hope that they will come to visit China again.(同位语从句) Those who want to go please sign their names here.(定语从句) ②

同位语从句所说明的名词在从句中不充当句子成分；从句只是对名词具体内容的解释说明。 定语从句所限定的名词是从句逻辑上的主语、宾语、表语、定语、状语等 5

人教版高二英语选修八第二单元《Cloning》教学案

The news that they won the match is true.(同位语从句, news在从句中没有充当成分) The news that you told us yesterday is true.(定语从句, news是told的逻辑宾语) ③引导词的不同：同位语从句主要由连接词that引导，有时也可用what, how, whether, whatever 等可引导同位语从句，但这几个词不引导定语从句; 定语从句由关系代词或关系副词引导。 Then he raised the question where they were to get the machine needed.(同位语从句) Do you know the place where he was born?(定语从句) ④从引导词来看: 引导词that在同位语从句中是连词, 只起连接作用, 无具体词义, that不可省略; that在定语从句中是关系代词，并在定语从句中充当一定成分—主语或宾语，有具体

词义, 作宾语时还可以省略。 2.

The factory ______ we visited yesterday is a chemical one. 3.

The news ______ he will leave for Shanghai is true. ⑤

同位语从句与前面名词一般可变成一个完整句子, 谓语动词用be的不同形式；而定语从句与先行词不可以。 He heard the news that their team had won.此句可以变为一个表语从句: =The news was that their team had won. 5. 下列各句均有一处错误，请指出并改正。（应用探究）

1. What fashion differs from country to country may reflect the cultural differences from one aspect. 2. They want to make it clear to the public they are doing an important and necessary job.

3. No one can tell exactly that man will look like in a million years.

4. I just have no idea that he has been so excited these days. 5. Police were called in to find out that caused the big fire. 6. It was suggested that he was sent to the hospital at once. 6. Choose the best answer. （延伸探究）

1.I have no idea ____he will come back. A. where

B. when

C. what

D. that 2.The news ___ surprised everybody yesterday now proves to be false.

A. that

B. when

C. what

D. how

3.One of the men held the view ___ the book said was right.

A. what that

B. that which

C. that what

D. which that 4.Word has come ___ some American guests will come for a visit to our college next week. A. what

B. whether

C. that

D. which 5.They lost their way in the forest and ____ made matters worse was ___ night began to fall.

A. what; that

B. it; that C. what; when

D. which; what 6.Mary wrote an article on ___ the team had failed to win the game. A. why

B. what C. who

D. that 【师生反思】

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