Unit3 Science versus nature

Welcome to the unit

Unit3

英语

授课教师 王侠

versus

It is France versus Brazil in the football final.

prep. 对抗 , 与 ... 相对

What do you know about clone?

Brainstorming

Clone: a new technology which produces an exact copy of an animal or a plant from its own cells.

Read P41, and talk about the pictures in pairs.

Discussion

Dolly and its creator

What do you know about Dolly?

Dolly 1.the world’s first cloned adult animal

2.created by a Scottish scientist in 1996

3.sparked worldwide interests in cloning

4.died in 2003

1.the world’s first cloned mule, born on May 4, 2003

2.created from a cell of his brother

Idaho Gem

Cc

Rainbow 1.the world's first cloned cat, Cc,

born in December 20022.created using a cell taken from

an adult cat, Rainbow

1.the world's first cloned pigs, named Noel, Angel, Star, Joy, and Mary

2.produced from an adult female pig using a different technique from the one that produced Dolly

the world’s first cloned calves, born on 5 July 1998 in Ishikawa, Japan, the second adult-animal clones

1.the first cloned monkey, named ANDi

2.the first genetically modified monkey

ANDi

What are the differences between the cloned animals and the normal ones?

Do you think the cloned animals are as healthy as the natural ones?

Dolly is, but scientists do not yet know whether this is the exception( 例外 ) or the rule. Some early evidences suggest that clones may have health problems and that they may age prematurely ( 早衰的，未老先衰 ).

Supposing you are facing your second self who looks like you, talks like you and thinks like you, how do you feel?

Discussion

Try to describe Bush’s feelings.

Do you think it would be a good idea to clone humans some day? Why or why not?

Discussion

1. Learn the new words.

2. Do A1A2.

Homework