Unit 2 Cloning Using Language 课件（28张）

课件28张PPT。Listening and Speaking and Writing Unit 2 CloningUsing Language 1 Read these statements before listening. Tick those that you hear. (INDIVIDUAL)□ 1. Cloning will bring dead pets to life. □ 2. There were 627 experiments before Dolly was successfully cloned. □ 3. Cloning may help cure serious illnesses. □ 4. It’s a dead end. □ 5. Dolly the sheep was “middle-aged” when she was born. □ 6. So your grandmother would be able to start her life all over again and live much longer. Listening Xiao Qing, do you think cloning is cruel?What do you mean by that? The scientists are doing a wonderful job and soon they may be able to bring people’s favourite pets back to life.Yes, Qing, I know. But doesn’t that seem cruel to you that took 276 experiments before Dolly was successfully cloned. Think of all those live cells and eggs that died in order for Dolly to be born. I don’t approve of that!But , Rachel, be reasonable. Isn’t it always like that with a new science? This is the way people learn to do things better.I suppose so — but they make the animals do unnatural things. One poor cow was made to give birth to a bison. What was the poor creature to think when is saw its baby? I don’t quite understand why so many people are against cloning. I think the scientists need a little encouragement. Think of the benefits. Cloning may help medical science to produce cures for serious illnesses.Yes, I know and I agree with that. It's just that I don’t agree with the methods.Why not?Well, I think it’s a dead end. Dolly the sheep was “middle-aged” when she was born because her DNA came from a middle-aged “mother”. Cloning your grandmother would mean a new baby started life as an old lady!And it weakens the species. Clones mean there is less variety in the species and so the animals may not be able to resist particular illnesses and may die out. Really? I never thought of that!Oh dear! And that was just what you and I were trying to avoid. Inspite of all of this, don't you think the scientists will still be able to solve the problems? RachelIs cloning cruel to the animals? Xiao Qing not cruel! cruel!DiscussionAlways put yourself into other's shoes Rachel Xiao Qing not cruel! cruel! Imagine that if you were an animal now, your name is Xiao Qing the frog or Rachel the sheep. Start a discussion like human Xiao Qing and Rachel about whether cloning is cruel?the sheep the frog DiscussionIs cloning cruel to we animals? These words and phrases may be useful for you during the discussion：Discussion do you think........... What do you mean by that?........ Yes, Qing, I know. But...........But , Rachel, be reasonable.......I suppose so — but.......I don’t quite understand why .......Yes, I know and I agree with that. It's just that.......Why not？Well, I think ........Really? I never thought of that! And ....... Oh,dear!.........Inspite of all of this............ That’s a good idea. I cannot accept your argument because… I support… because… No ... ...