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1、新课标人教版课件系列,高中英语 选修(模块）8-2.7,Unit 2 Cloning warming up and speaking,Do you enjoy watching TV series ? Have you ever seen Journey To The West ?,What is clone ?,Clone,Clone, also called reproduce asexually ( 无性生殖 /繁殖) , is the creation of cells or whole animals using DNA from a single “parent”, without
2、 using the normal reproductive (有性生殖) process. The clone has the same DNA to the parent.,Whats clone?,clone,Natural clone,Man-made clone,Natural clone is one that occurs from the “parent ” in a natural form of cloning without human help. Man-made clone is one that produced through human intervention
3、(介入) .,cactus,strawberry,twins,pendulum orchid(吊兰),natural cloning examples,Man-made cloning examples,the important events in cloning history,In 5000B.C. ( 谷物选种) Human Beings began to choose the best seeds from some kinds of crops. That was the beginning of controlling life according to humans will.
4、,In 1952: Cloning tadpole ( 克隆蝌蚪) The American scientists created a copy of tadpole by means of using a tadpole cell. This tiny tadpole has become the first kind of cloning animal.,In 1978: The first case of tube infant (试管婴儿 ) appeared. A British doctor used the sperm（精液）of a man and fertilized(受精
5、) it in a test tube(试管). Then transplanted(移植) the embryo(胚胎) into the womb(子宫 ) of a healthy mother. The first tube infant called Louis appeared.,In 1996, the famous sheep “Dolley” was cloned successfully,Dolley and the Father of Dolley Lanwilmut ( 伊恩.威尔姆),In 1998 A series of things were cloned. Th
6、e scientists in Hawaii University cloned over 50 mice. Some private institutions ( 协会 ) successfully cloned little oxen.,In 2002, the scientists of A&M University in USA has bred the first cloned cat in the world.,Nowadays : Cloned dog, mouse, rabbit, goat, ox, pig appeared . China become the sevent
7、h country that has the ability to clone pigs. China has succeeded in using embryonic（胚胎的） cell to clone many animals.,The End,Thank you!,Quiz,Natural clone Man-made clone,strawberry,Is it natural clone or man-made clone?,identical dogs,Natural clone Man-made,cactus,twins,T or F questions 1 Clone can
8、 be from both natural clone and man-made clone . 2 The sheep, named Kitty was the first successful clone of a mammal(哺乳动物).,T,F,3 Only strawberries and cactus(仙人掌) are natural clones .,F,4 Since Dolley ,researcher have cloned a number of large and small animals including goats ,cows , mice , pigs, c
9、ats, rabbits and dogs . 5 A parent can clone a child who is dying of a terminal illness ( 不治之症).,T,F,Enjoy one play,Background : A man has lost his left hand , one day his friend tells him the news that a doctor can transplant one new hand for him . The play happens like this ,Guessing : What will t
10、he doctor say at the end of the play ?,Is cloning good or bad for us ? Advantages Disadvantages Group 1 and 2 Group 3 and 4,Mini-Debate,Are you interested in the topic of cloning ? Do you believe that we will have cloned human soon ? Do you think a cloned human should have human rights ? Do you supp
11、ort medical cloning ?,Speaking,Interview about cloning Situation: A reporter from China Daily is interviewing three famous scientists about their opinions of cloning .,Do you think it is wise? Whats your opinion of ? I think you should I agree with you that I would never accept ,Please preview reading comprehension and get some information about Dolley,Homework,