1、选修选修8 Unit 2Cloning Look at the pictures and discuss which ones are natural clones and which ones are man-made clones .She was reported on TV and major papersCloning , where are you leading us?.1. What is cloning?It is a way of making an exact copy of another animal or plant.First reading 2.Can you
2、put the topic sentences into paragraphs that they belong to? (Attention: one of them belongs to nowhere.) Dollys problem and death What is cloning? Two major uses of cloning The effect of Dolly The procedure for human cloning Arguments brought by Dolly Para 1 Para 2Para 3 Para4 Para5What is cloning?
3、 Two major uses of cloning Dollys problem and death The effect of Dolly Arguments brought by Dolly The procedure for human cloningSecond reading 1. What are the two major uses of cloning ?The first use is to produce commercial quantities of plants ; the second one is to research on new plant species
4、 and medical research on animals.2. Is cloning plants the same with cloning animals ? A. Yes , they are the same with each other. B. No, cloning plants is straightforward but cloning animals is more complicated. 3.Give a right order of cloning Dolly s procedure The cell divides and grows into an emb
5、ryo.The lamb is the clone of the donated cell from Sheep B. A nucleus is taken out of Sheep Bs somatic cell .The embryo is put into female Sheep C.The egg cell from Sheep A and the nucleus from Sheep B are joined using electricity. The egg cell from Sheep A is removed a nucleus.The order:_ _ _ _ _ _
6、随堂检测1. The main idea of the text is_ A. animal cloning is very valuable and can benefit the world. B. animal cloning could be misused by bad people so it must be forbidden.C. animal cloning is well developed because Dolly the sheep was born. D. animal cloning raised arguments and scientists are not
7、sure about its future.D2.The cloning of Dolly the sheep succeeded because_. A. its easier to clone a sheep than other animals B. the scientists were determined and worked hard with patienceC. the scientists were rewarded and got lots of moneyD. many other attempts to clone mammals failedB3. What is
8、the writers attitude toward cloning in this passage?A. The writer is against cloning.B. The writer is in favor of cloning.C. The writer is neutral towards cloning.D. The writer is in agreement with cloning.C4. Which of the following is not an advantage of cloning?A. Cloning can be used for medical p
9、urposes. B. Large quantities of food can be produced by cloning.C. Cloning can help keep animals from becoming extinct.D. People can clone themselves at will.D5. We can infer from the last three paragraphs that _.A. The normal development of Dolly had no effect on the cloning of other species.B. Dol
10、lys serious disease and final death disturbed the whole world.C. Dolly successfully cloned a new lamb with the help of cloning scientists.D. There were arguments about animals about animal cloning and concerns about the future of cloning.D6.What is the writing style? A. Expositive （说明性的） B.Descripti
11、ve C. Argumentative （议论性的） D. NarrativeALets make a discussion about whether cloning should be allowed in China ? Give your reasons.1. Whats the effect of cloning ?On the one hand ,it opened everybodys eyes to the _of using cloning to cure_and even produce _; On the other hand , Its appearance raise
12、d a storm of _and had a great impact on the _ and public_.serious illnessespossibilityhuman beingsobjectionsmediaimagination2.What are the advantages and disadvantages of cloning ?1.Cloning plants can produce _ _ of plants .2. Cloning plants can be useful for research on new _ species.3. Medical clo
13、ning could produce _ for serious illnesses.advantages commercialquantitiescuresplantdisadvantages 1. Animal clones may develop the _ of older animals.2. Animal clones may _younger than the donor animals.3. Evil leaders may want to _ themselves to attain their ambitions. 4. Religious leaders raised _
14、 questions about human cloning.illnessesdieclonemoral As one coin has two sides, everything has _ aspects(方面). Cloning has both _and _ aspects ._, if cloning is used in a correct way ,it can bring lots of convenience to us. _, if cloning is used in an evil way ,it can cause much trouble. _, we shoul
15、d use cloning in a correct way. twogoodbadOn the one handOn the other handTherefore3.What can we learn from the passage ?Possible sentence patterns:(1)Peoples views vary from person to person.(2) hold the view that./in favor of (3)object to the view that/ are against(4)I cant agree with because One coin has two sides and we should treat things in a wise way.教师寄语教师寄语Write a short passage about what you discussed in class.
