1. Revision 1 在很多方面； 与 … 不同 2 失望，沮丧 3 赞同，支持； 反对 4 禁止 … 干什么 5 undertake doing ； undertake to do 6 accumulate experiences 7 look back on life 8 it is a matter of time 9be identical （ to with as ） 10 从 … 受益（ benefit 、 profit ）

2. The whole scientific world f_____ the progress of the first successful clone, Dolly the sheep. The fact _____she seemed to develop normally was very e_____ (encourage). Then came the disturbing news that Dolly had become s_____ ill. Cloning scientists were cast down to find that Dolly’s illnesses were ____(much) appropriate to a much older animal. Sadly the same arbitrary fate affected other s_____, such as cloned mice. The question that ____(occur) to the scientists was: “Would this be a major difficulty for all _____ (clone) animals?” Altogether Dolly lived for six years, half the _____ (long) of the life of the original sheep. D_____ her problems, Dolly successfully produced a lamb in a natural birth. followed that-ing seriously much more species occurred cloned length despite

3. On the other hand, Dolly’s appearance r_____ a storm of objections and had a great i_____ on the media and public imagination. It became c_____. It suddenly opened everybody’s eyes to the possibility of using cloning to c_____ serious illnesses, and even producing human beings. Newspapers told stories of evil leaders _____ (hope) to clone themselves and religious leaders raised m_____ questions. Governments became nervous and many ____ (forbid) research into human cloning. Some countries such as China and the UK continued to accumulate e_____ of the abundant medical aid that cloning could provide. H_____, scientists still wonder whether cloning will help or h_____ us and where it is leading us. raised Impact controversial cure hoping moral forbade evidence however harm

5. Unit 2 Cloning

6. Warming up ( 4ms ) Answer the following questions: 1.Do you like dinosaurs? Where have you seen them? Can you see them in our real life? 2.Do you think it is possible to clone dinosaurs? 3.Do you want to know the view point of scientists?

7. Reading -- I scanning ( 5ms ) Read the text, and try to answer the question. 1. Which of the following best expresses the main idea of this passage? A.We can not clone the animals that have disappeared from the earth for many reasons. B. We can clone some extinct animals in a zoo. C. scientists are still experimenting with cloning mammals. D.The chaces of cloning dinosaurs are extremely low.

8. Reading -- II Detail reading ( 4ms ) Read the text again and try to answer the questions: 2. The earliest cloned animals were ________. A mice B frogs C cows D sheep 3. Why is it useless to clone an animal if there is not enogh diversity? A Because it is bad for their genes B Because the animals may die of some illness. C Because some animals may die. D Because we willnot get perfect DNA.

9. 4. Why can’t you clone the DNA of animals that have been extinct longer than 10,000 years? A Because it is impossible to get the DNA B Because scientists are still not sure of the techniques. C Because the DNA of these animals could not survive so long. D All of the above.

10. Para 1 1. Translate: The popularity of the film Jurassic Park, in which a scientist cloned several differnent kinds of extinct dinasours, proves how interested ordinary people are in the subject. 在《侏罗纪公园》这部影片中，有一位科学家克隆了好 几种不同的绝种恐龙。这部影片很受欢迎，证明普 通百姓对这个问题是多么感兴趣。 2. Fierce and extinct animals 3. film makers 4. a long way from 5 experiment with

11. Para2 1. Translate the 1st sentence 不时地会有人提议，克隆技术将会有可能将地球上已经消失的 动物（如恐龙）复活 2.Translate the 2nd sentence 不幸的是，这要么是不可能的，要么是不合适的。 3. Bring … back to life 4 either… or… 5. Translate: “It is useless to clone an animal if there is not enough diversity in the group for it to overcome illnesses. ” 如果某个动物群体没有足够的多样性来克服疾病，那么克隆这 种动物是没有价值的 6. Pass on …to… 7 ability to resist disease 8 arrangement of genes 9 unfair 10 haibitat

12. Para 3 1.Translate: Based on what we know now, you can’t clone animals that have been extinct longer than 10,000 years? 就我们现在所知， 你不可能克隆那些已经绝 种了一万年以上的动物。 2.merely

13. 三维设计 1 p27 动词不定式 eg The procedure is difficult to undertake ---------- it is difficult to undertake the procedure eg The coat is difficult to wash ------------------------ Eg it is difficult to deal with him --------------------- Eg It is easy to memorize the words. ---------------------

14. P28 全倒装 1 out rushed the boy ------------- 2 now comes your turn to recite the passage. ------------- 3 down fall the leaves, ------------- 4 outside the school _____(stand) a beautiful girl Outside the school _____(stand) many boys, 5 The came the disturbing news. ---------------------------