大学英语三(综合教程)第四单元学习资料.pdf

3 大学体验英语三（综合教程） Unit 4 Cloning and Ethics

Listen and Talk

Lead in

The news that a sheep in Scotland has been successfully cloned 1) ; . What good would it be to

clone humans? What would I do with a clone of myself? Then 2) that I could have my clone

go into work for me while I went out hiking, biking, skiing, etc.! I really could be in two places at

once.

But wait a minute. If that's what I would do with my clone, how do I know that I'm not a clone

myself? What if the 3) had himself cloned and sent the clone (that is, me) in to do his work for

him? This explains a lot:

— all those mysterious checks I find in my 4) every month (with my signature) but don't

remember writing,

— why my wife doesn't seem to notice when I've been out of town,