8unit2reading

1、Unit 2 Cloning,Reading,Dolly the sheep,Its the most famous sheep in the world. Do you know how Dolly is different from other sheep?,man-made clones,She was cloned while the others were born naturally. It is the copy of another sheep.,What do you know about twins?,natural clones,The rest two are natu

2、ral clones.,Look at these pictures, and discuss this question with your partner.,Is cloning people a good thing or a bad thing?,Read through the passage and find the main idea of each paragraph.,Cloning is a way of making an exact copy of another animal and plant. Cloning has two major uses. The bir

3、th and death of Dolly. The effect of Dolly. It is forbidden to clone human beings.,Para 1. Para 2. Para 3. Para 4. Para 5.,Choose the best answer. 1. As for the cloning procedure of Dolly the sheep, all of the following are true EXCEPT _. A. the lamb is the clone of the donated cell from sheep B B.

4、electricity is needed C. female sheep B provides an egg cell D. three female sheep are used,C,2. From the last paragraph we know that _. A. cloning will come to an end because of objections B. cloned human beings will be produced in the near future C. many countries will use cloning in a wise way D.

5、 all the research into human cloning will be forbidden,C,(1) Cloning means making a copy of an animal or a plant. (2) Gardeners can make a lot of money by cloning plants. (3) Cloning animals is as complicated as cloning plants.,F,T,F,Write the letter “T” if the statement is true. Write “F” if it is

6、false.,T,T,(4) Dolly the sheep was the first successful clone of a mammal. (5) Natural clones happen in animals as well as in plants.,4. What problems may arise when humans are cloned?,1) People may want to clone themselves so they can live forever. 2) People may want to clone dead children. 3) Peop

7、le may want to clone their favorite pets.,1.克隆技術(shù)現(xiàn)在還不成熟, 克隆人可能有很多先天性生理缺陷。 2.克隆人的身份難以認(rèn)定, 他們與被克隆者之間的關(guān)系無法納入現(xiàn)有的倫理體系。,反對克隆人,3. 克隆技術(shù)有可能被濫用, 成為恐怖分子的工具。 4. 從生物多樣性上來說, 大量基因結(jié)構(gòu)完全相同的克隆人, 可能誘發(fā)新型疾病的廣泛傳播, 對人類的生存不利。,1. “不讓我們克隆人, 就是不讓我們修正我們的錯誤, 人類歷史難道能夠這樣構(gòu)造嗎？” 紐約時報書評 2. “當(dāng)然應(yīng)該克隆人, 如果誰第一個掌握了這個技術(shù), 他就是我真正的、也是唯一的競爭對手?！?比爾

8、蓋茨,支持克隆人,3. “克隆人絕對是科學(xué)上了不起的進(jìn)步, 克隆技術(shù)必將創(chuàng)造21世紀(jì)的輝煌。” 麻省理工學(xué)院生命工程教授約翰布洛克 4. “人體商業(yè)化是人類經(jīng)濟活動中無與倫比的成就, 毫無疑問, 克隆技術(shù)的出現(xiàn)將為世人創(chuàng)造一個最為廣泛和深遠(yuǎn)的市場?！?英國經(jīng)濟學(xué)家雜志。,Do you know about,the procedure works of a sheep?,Reproductive cloning is intended to produce a c_ of an existing a_ or a plant. Reproductive cloning of animals is

9、a_ for technology and farming as well as for cloning e_ animals. But reproductive cloning of human beings is specifically f_ by law in most c_.,opy,nimal,ndangered,llowed,orbidden,ountries,Consolidation,Therapeutic (治療的) cloning is to produce a healthy copy of a s_ persons tissue (肌肉組織) or organ for transplant in order to save the lives of those who would d_ without it. This t_ would be many times better than r_,ick,ie,echnique,elying,on organ tr