Unit2《Cloning》reading课件(新人教版选修8)

Unit 2《Cloning》学案

Learning aims:

1.To know something about cloning, the advantages and disadvantages of cloning and people’s reaction to cloning; 2.To grasp the keys words and phrases of the passage; 3. To pay attention to some important sentences

Procedure:

Ⅰ.Pre-reading:

① What is cloning?

② How much do you know about cloning?

Ⅱ.While –reading:

1.Read the passage carefully, divide the passage into four parts and sum up

the general idea of each part.

Part 1: Part 2: Part 3:

Part 4:

2. Read the paragraphs 3~5 and then discuss the following questions in groups

of four.

①What benefits can human beings gain from cloning? Please illustrate some

examples.

②Which sentence in the passage is the cloest in meaning to the following

one? It was unfortunate that cloned mice and Dolly sheep developed illnesses and

Unit 2 Cloning

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

①The two squares differ colour but not size.

②The husband differs the wife who is to take charge of the money.

③It doesn’t 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

⾼考英语⼀轮复习话题37克隆（Unit2Cloning）新⼈教版

选修8

话题37 克隆（Unit 2 Cloning）晨读背诵

When the media report on cloning in the news, they are usually talking about only one type called reproductive cloning.There are different types of cloning however, and cloning technologies can be used for other purposes besides producing thegenetic twin of another organism.

Scientists have been cloning animals for many years. In 1952, the first animal, a tadpole, was cloned. Before the creation ofDolly, the first mammal cloned from the cell of an adult animal, clones were created from embryonic cells. Since Dolly,researchers have cloned a number of large and small animals including sheep, goats, cows, mice, pigs ,cats, rabbits, and agaur. All these clones were created using nuclear transfer technology.汉语⼤意：当媒体报道的克隆的消息，他们通常所说的只有⼀种称为⽣殖性克隆的类型。然⽽有不同类型的克隆。除了⽣产遗传双胞胎的另⼀⽣物体，克隆技术可以⽤于

Unit 2 Cloning

Period 5 Using Language:

Reading and writing

Teaching aims:

1. Improve the students’ reading ability (skimming and scanning).

2. Enable the students to grasp the useful words and expressions.

3. Practice the students’ writing.

Teaching important and difficult points:

1. Improve the students’ reading ability (skimming and scanning).

2. enable the students to grasp the useful words and expressions.

Teaching methods:

Reading, discussion, enjoying.

Teaching procedures:

Step1 Show some pictures to the students to make them see the

history of people’s cloning

Step2 Enjoy some pictures of different kinds of dinasours

Step3 Read the passage and answer the questions:

1. Why shouldn’t you clone an extinct animal unless there is enough

diversity in the group?

2. Why is it wrong to clone an extinct animal if it would live in a zoo?