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1、Research into Population Genetics (All the exercises for Section A),新视野,New Horizon College English,Unit 7 : Section A,读写教程4EX: I, P. 158,读写教程4EX: VI, P. 160,读写教程4EX: IV, P. 159,读写教程4EX: III, P. 159,Exercises,读写教程4EX: X, P. 164,读写教程4EX: IX, P. 163,读写教程4EX: VIII, P. 162,读写教程4EX: VII, P. 161,读写教程4EX:
2、XI, P. 164,Comprehension,Vocabulary,Collocation,Word Building,Structure,Translation,读写教程4EX: XII, P. 165,1. What does The History and Geography of Human Genes conclude?,The book concludes that despite surface features, the “races” are remarkably alike under the skin.,读写教程 IV: Ex. I, p. 158,I. Answer
3、 the following questions.,Back,下一页,Luca Cavalli-Sforza, a Stanford professor, and his colleagues.,2. Who created the first genetic map of the world?,Back,3. Where did the scientists find the information to draw a global family tree?,In human blood, because various proteins serve as markers to reveal
4、 a persons genetic makeup.,下一页,上一页,4. Why did people assume that Australias native people were closely related to black Africans? What do the discoveries made by the scientists show?,Because they share such superficial characteristics as skin color and body shape. But the discoveries indicate that A
5、ustralians are most distant from the Africans and most closely resemble the Southeast Asians.,Back,下一页,上一页,5. What else does the genetic map of the world show us about Africa?,It confirms that Africa was the birthplace of humanity and thus the starting point of the original human movements.,Back,6.
6、What does the genetic map show about Khoisan people?,It shows that the Khoisan may be a very ancient mix of west Asians and black Africans, rather than being directly descended from the most primitive human ancestors, and that their breeding ground lies in Ethiopia.,下一页,上一页,7. According to genetic i
7、nformation, are Europeans pure or mixed?,All Europeans are thought to be a mixed population, with 65% Asian and 35% African genes.,Back,下一页,上一页,8. What is the ultimate aim of the study conducted by the scientists?,The ultimate aim is to weaken conventional notions of race that cause racial prejudice
8、.,读写教程 IV: Ex. III, p. 159,III. Fill in the blanks with the words given below(P159). Change the form where necessary.,下一页,上一页,Back,1. Some medical experts believe the chances of an explosive spread of the disease to Europe cannot be _.,discounted,下一页,上一页,2. The report was _ because it did not contai
9、n sufficient balance of views. 3. Perhaps it is a good idea to plant different kinds of roses. That would surely add _ and charm to your garden. 4. Rightly or wrongly, I judged that the _ risks in doing so were greater than any possible benefit that I could imagine.,biased,variation,Back,potential,下
10、一页,上一页,Back,5. _ with the evidence, they admitted that, of all humans, Australians are the most distant from Africans genetically. 6. In areas of high unemployment, workers tend to _ to other part of the country where more jobs are available. 7. The people here are said to be _ from the Vikings,Conf
11、ronted,migrate,descended,下一页,上一页,Back,8. With the exception of teaching and nursing, these jobs require little specialized training, and for most a good physical appearance is a _ advantage. 9. The problem, he pointed out, was that though many Europeans had at one time studied English, they retained
12、 only a _ knowledge of the language.,distinct,superficial,下一页,上一页,Back,10. A survey shows that women who have maintained and/or developed an _ network of personal relationships in middle age are better able to cope with the problems of old age.,extensive,读写教程 IV: Ex. IV, p. 159,下一页,IV. Fill in the b
13、lanks with the expressions given below(P159). Change the form where necessary,1. The scientists announced last year that one of the genes that played a part in determining intelligence had been identified, but _ the results have yet to be confirmed.,上一页,Back,to date,下一页,上一页,3. Their first attempt to
14、 create the genetic map of the world was _ a failure.,Back,2. They seem to think that building a new road will solve the traffic problem, but _ it will make it worse.,in effect,nothing less than,下一页,上一页,5. The best ways to lose weight are proper diet _ regular exercise .,Back,4. _ today Dr. Carey wi
15、ll be in charge of a long-term study of children who are unusually good at math.,As of,in combination with,下一页,上一页,Back,6. _ their child-rearing and volunteer work, many women in the city take low-paid, so-called part-time work .,In addition to,7. Their research into better parenting and educational
16、 techniques _ the fact that more boys have unusual mathematical abilities than girls.,shed new light on,下一页,上一页,Back,8. It is now known that this illness _ not _ any one group in society.,is confined to,9. The findings _ a reminder of how important it is to keep an open and trusting dialog going with your chil
