1、warming up and reading 12022-11-7Clone?Natural cloneMan-made cloneNatural clone is one that occurs from the“parent”in a natural form of cloning without human help.Man-made clone is one produced through human intervention(介入介入).22022-11-732022-11-7TwinsThey are born naturally and identical in sex and
2、 appearance.42022-11-7A strawberry plantThe new plants that grow from the runners are exact copies of the original plant.52022-11-71996 cloning sheeps62022-11-72001 cloning cattle72022-11-7我国成功繁殖克隆兔我国成功繁殖克隆兔 体形要比普通兔大许多体形要比普通兔大许多2002年年5月月中旬成功地中旬成功地繁殖了一只繁殖了一只胚胎细胞胚胎细胞克隆兔。克隆兔。82022-11-72002 cloning cats
3、92022-11-72002年年4月十六月十六日美国第一头日美国第一头克隆牛克隆牛“艾米艾米”产下牛犊喜作产下牛犊喜作妈咪妈咪。102022-11-72005 cloning dogs112022-11-71.What is the main topic?A.Cloning.B.Dolly the sheep.C.It will lead us to some places.2.What is the writing style?A.Expositive(说明性的说明性的).B.Descriptive.C.Argumentative(议论性的议论性的).A A 122022-11-7It ha
4、ppens both in _ and in _.They can be cloned by _ and _.plantsanimalsthemselveshumansNatural cloneMan-made clonePara 1:The definition of cloning132022-11-7Practice activity:Debate Are you in favor of cloning or against cloning?What is your point of view on it?142022-11-71.Translate the procedure of cloning Dolly the sheep into Chinese.2.Finish the Ex.1,2,3 on Page13.Homework 152022-11-73.Write a short passage about the advantages and disadvantages of cloning.At the end of your passage,you can add your own opinion.162022-11-7
