新视野4二版UNIT7练习答案ppt课件

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1、Research into Population Genetics(All the exercises for Section A)New Horizon College EnglishUnit 7:Section A读写教程读写教程4EX:I,P.158 读写教程读写教程4EX:VI,P.160读写教程读写教程4EX:IV,P.159读写教程读写教程4EX:III,P.159 Exercises读写教程读写教程4EX:X,P.164读写教程读写教程4EX:IX,P.163读写教程读写教程4EX:VIII,P.162读写教程读写教程4EX:VII,P.161读写教程读写教程4EX:XI,P.1

2、64读写教程读写教程4EX:XII,P.1651.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.读写教程读写教程 IV:I.Answer the following questions.Back下一页下一页Luca Cavalli-Sforza,a Stanford professor,and his colleagues.2.Who

3、 created the first genetic map of the world?Back3.Where did the scientists find the information to draw a global family tree?In human blood,because various proteins serve as markers to reveal a persons genetic makeup.下一页下一页上一页上一页4.Why did people assume that Australias native people were closely rela

4、ted 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 Australians are most distant from the Africans and most closely resemble the Southeast Asians.Back下一页下一页上一页上一页5

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.Back6.What does the genetic map show about Khoisan people?It shows that the Khoisan may be a very ancient mix of west A

6、sians and black Africans,rather than being directly descended from the most primitive human ancestors,and that their breeding ground lies in Ethiopia.下一页下一页上一页上一页7.According to genetic information,are Europeans pure or mixed?All Europeans are thought to be a mixed population,with 65%Asian and 35%Afr

7、ican genes.Back下一页下一页上一页上一页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.读写教程读写教程 IV:III.Fill in the blanks with the words given below(P159).Change the form where necessary.下一页下一页上一页上一页Back1.

8、Some medical experts believe the chances of an explosive spread of the disease to Europe cannot be _.discounted下一页下一页上一页上一页2.The report was _ because it did not contain 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

9、 garden.4.Rightly or wrongly,I judged that the _ risks in doing so were greater than any possible benefit that I could imagine.biasedvariationBackpotential下一页下一页上一页上一页Back5._ with the evidence,they admitted that,of all humans,Australians are the most distant from Africans genetically.6.In areas of h

10、igh 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 Confrontedmigratedescended下一页下一页上一页上一页Back8.With the exception of teaching and nursing,these jobs require little specialized training,and for most a good

11、physical appearance is a _ advantage.9.The problem,he pointed out,was that though many Europeans had at one time studied English,they retained only a _ knowledge of the language.distinctsuperficial下一页下一页上一页上一页Back10.A survey shows that women who have maintained and/or developed an _ network of perso

12、nal relationships in middle age are better able to cope with the problems of old age.extensive读写教程读写教程 IV:下一页下一页IV.Fill in the blanks 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 in

13、telligence had been identified,but _ the results have yet to be confirmed.上一页上一页Backto date下一页下一页上一页上一页3.Their first attempt to create the genetic map of the world was _ a failure.Back2.They seem to think that building a new road will solve the traffic problem,but _ it will make it worse.in effectno

14、thing less than下一页下一页上一页上一页5.The best ways to lose weight are proper diet _ regular exercise.Back4._ today Dr.Carey will be in charge of a long-term study of children who are unusually good at math.As ofin combination with下一页下一页上一页上一页Back6._ their child-rearing and volunteer work,many women in the c

15、ity take low-paid,so-called part-time work.In addition to7.Their research into better parenting and educational techniques _ the fact that more boys have unusual mathematical abilities than girls.shed new light on下一页下一页上一页上一页Back8.It is now known that this illness _ not _ any one group in society.is

16、 confined to9.The findings _ a reminder of how important it is to keep an open and trusting dialog going with your children.serve as下一页下一页上一页上一页10.During this spare time you can relax,adjust eating habits,and generally _ your new surroundings.Backadapt to 下一页下一页上一页上一页Back读写教程读写教程 IV:V.Fill in the bl

17、anks in the following passage by selecting suitable words from the Word Bank.You may not use any of the words more than once.1.K 2.O 3.C 4.F 5.J6.I 7.G 8.A 9.M 10.E 读写教程读写教程 IV:下一页下一页VI.Study the example(P161)taken from the text and think about what else can be modified by“major”.Complete the senten

18、ces by filling the right word with the help of the first letters.上一页上一页Back1.Robbie is furious that the newly revised rules mean he would not be qualified for any of the major aw_.awards2.Have you not heard the President over and over again address some of the major ch_ that exist in the present era

19、?下一页下一页上一页上一页challenges3.Its so calorie-dense that its very difficult for average people to burn off all the calories they consume in a day when sugar is a major com_ of their ponentBack4.To win the award,your company must have achieved major ad_ in the development of products,technology or processe

20、s which offer important benefits for the environment and which are commercially successful.advances5.The government couldnt test on its present conditions and must press ahead with major policy ch_.下一页下一页上一页上一页Backchanges6.In addition to business courses,youll learn problem solving skills,which will

21、 give you a major ad_ in the job market.advantage7.He is a living legend,an encyclopedia of Quebec traditional songs and has a major in_ on the new generation of young singers.influence9.It has been made clear that the major ob_ of the new government is to change public opinion,not least about the r

22、ole of government itself.下一页下一页上一页上一页8.These proposals will have a major ef_ upon the university,since several medical school departments as well as a number of related research groups will have to move to a new location.effectobjectiveBack上一页上一页10.Hurricane damage through high winds and tidal surge

23、s causes an immense amount of destruction and poses a major th_ to many coastal communities in the US.threatBack读写教程读写教程 IV:下一页下一页VII.The suffix-cy can be added to adjectives and occasionally nouns to form nouns with the meaning of“the state or quality of being”.Note that the final“t”or“te”of adject

24、ives is in most cases,replaced by“cy”.For example:上一页上一页pregnantpregnancythe state of being pregnantaccurateaccuracythe quality of being accurateBack上一页上一页Study the words given below(P162)and complete the following sentences with them.下一页下一页Back1.The idea of keeping personal information on the Inter

25、net immediately raises concerns about _.privacy2.Though they are well apart,there is a sense of _ between them.intimacy上一页上一页下一页下一页Back3.The _ of terrorist attacks seems to have increased recently.frequency4.One of the requirements of the job is _ in two or more languages.fluency5.The prisoners were

26、 held in total _,without any contact at all with the outside world.secrecy6.The scientist believes that it is a matter of _ to weaken conventional notions of race that cause racial prejudice.urgency上一页上一页下一页下一页Back7.Its not preferable to do a lot of work one day and none the nextwe need some _.consi

27、stency8.Increasing disability with age means a growing _ on others,as made clear in the article.dependency读写教程读写教程 IV:下一页下一页VIII.The suffix-ology and-ics occur in nouns with the meaning of“the study or science of”.For example:上一页上一页Backbiologythe study of living things such as plants and animalsmeth

28、odologya system of methods or principles for doing a particular thing下一页下一页上一页上一页Backphysicsthe scientific study of physical objects and substances,and of natural forcespoliticsthe study of political power and systems of governmentStudy the words given below(162)and complete the following sentences

29、with them.下一页下一页上一页上一页Back1.She was very radical in her viewpoints and was banned from _ between 1980 and 1990,and spent 10 years under house arrest.politics2.She was extremely accomplished in the _,speaking both Greek and Latin fluently.classics(古希腊语及拉丁语古希腊语及拉丁语)3.Indeed,there is very little in the

30、 real world of _ which doesnt involve digital techniques and computing.electronics下一页下一页上一页上一页Back4.European governments stressed the currency was about more than just _.economics5.He was interested in the study of the way the human mind works and how it influences behavior,so he decided to major in

31、 _ when he entered university.psychology6.Unlike the natural sciences,where discussion often starts with the results and ignores the _ of the research,the social sciences have developed an elaborate argument about the practices of doing research.methodology下一页下一页上一页上一页Back7.We are taking every care

32、to provide the latest _ and a quality environment.8.The science of _,therefore,has had a profound effect on how we understand the evolution of human beings.technologybiology读写教程读写教程 IV:下一页下一页 IX.“More than”can be followed by a noun or adjective to express the meaning of“having greater value or impor

33、tance than something else”or“not only.”.Rewrite the following sentences after the model(P163).上一页上一页Back1.Being healthy is not merely a question of not being ill.Being healthy is more than a question of not being ill.下一页下一页上一页上一页2.I was not only a little upset at not being invited to the wedding.I w

34、as more than a little at not being invited to the wedding.Back3.This story is not just interesting;it is educational as well.This story is more than interesting;it is educational,as well.下一页下一页上一页上一页4.Hepworth is not only a filmmaker;he had learnt to find stories that would have genuine popular appe

35、al.Hepworth is more than a filmmaker;he had learnt to find stories that would have genuine popular appeal.Back下一页下一页上一页上一页5.Compared our achievements today with what we started out to be,it is not simply a miracle brought about by years of exceptionally hard work.Compared our achievements today with

36、 what we started out to be,it is more than a miracle brought about by years of exceptionally hard work.Back读写教程读写教程 IV:下一页下一页 X.“Nothing less than”can be followed by a noun or adjective to emphasize how surprising or important something is.Rewrite the following sentences after the model(P164).上一页上一页

37、Back下一页下一页上一页上一页1.What was needed was just a new industrial revolution.What was needed was nothing less than a new industrial revolution.Back2.This is just a call to restore the vitality of the American dream.This is nothing less than a call to restore the vitality of the American dream.下一页下一页上一页上一页

38、3.Their dream was,to be exact,a revolutionary project to bring computers and ordinary people together.Their dream was nothing less than a revolutionary project to bring computers and ordinary people together.Back4.The experience of sightseeing in the wonderful island is extremely exciting and I am m

39、oved to tears.The experience of sightseeing in the wonderful island is nothing less than exciting and I am moved to tears.下一页下一页上一页上一页5.He was very concerned that she should not be tired or bored;he wanted to make sure that the holiday would be just perfect for her.He was very concerned that she sho

40、uld not be tired or bored;he wanted to make sure that the holiday would be nothing less than perfect for her.Back读写教程读写教程 IV:ExercisesTranslation下一页下一页XI.Translate the following into English.In the process of creating the genetic map,these scientists realized that cooperation was more than an attrac

41、tive option;it was a responsibility.1.这些科学家在创建基因图谱的过程中体会这些科学家在创建基因图谱的过程中体会到到:合作不仅仅是一种有吸引力的选择，合作不仅仅是一种有吸引力的选择，它还是一种责任。它还是一种责任。(more than)上一页上一页Back ExercisesTranslation下一页下一页上一页上一页Their research findings were nothing less than a miracle.As a result of their findings,new light has been shed on the his

42、tory of human genes.2.他们的研究发现简直就是一个奇迹。由于他他们的研究发现简直就是一个奇迹。由于他们的发现，人们对人类基因的历史有了新的们的发现，人们对人类基因的历史有了新的了解。了解。(nothing less than;shed light on)Back下一页下一页上一页上一页3.事实上，只有勤奋加方法得当才能使你在事实上，只有勤奋加方法得当才能使你在学习上比他人有优势。学习上比他人有优势。(in combination with;give an advantage over)In fact,only hard work in combination with pr

43、oper methods will give you an advantage over others.Back下一页下一页上一页上一页4.法官说这种惩罚将起到杀一儆百的作用。法官说这种惩罚将起到杀一儆百的作用。(serve as)The judge said the punishment would serve as a warning to others.Back5.感染的危险只限于那些与病人有亲密接触感染的危险只限于那些与病人有亲密接触的人。的人。(be confined to)The risk of infection is confined to those who have clo

44、se contact with the patients.下一页下一页上一页上一页6.从这一分析我们可以更好地知道发生了什从这一分析我们可以更好地知道发生了什么以及要做什么。么以及要做什么。(in a better position to do)From such an analysis we are in a better position to understand what has happened and what to do about it.Back1.As a responsible manufacturer,we are more than concerned about th

45、e environment;we are actively involved in environmental protection.XII.Translate the following into Chinese.读写教程读写教程 IV:下一页下一页上一页上一页Back作为一个负责任的生产厂家，我们不仅作为一个负责任的生产厂家，我们不仅仅关注环境；我们还积极参与保护环境。仅关注环境；我们还积极参与保护环境。2.Of course,she eventually left to get married,but I could say for sure that she was nothing l

46、ess than dedicated and never allowed her professional priorities to be distracted.上一页上一页下一页下一页Back当然，她最后还是离开，去结婚了，但当然，她最后还是离开，去结婚了，但我敢肯定的是：她对工作尽职尽责，从我敢肯定的是：她对工作尽职尽责，从不允许自己的职业重点受到影响。不允许自己的职业重点受到影响。3.Other than academic success,what has been your greatest achievement to date?上一页上一页下一页下一页Back除了学业上的成绩，你

47、迄今为止最大的成除了学业上的成绩，你迄今为止最大的成就是什么？就是什么？观察和实验的目的是为了验证或阐明某些观察和实验的目的是为了验证或阐明某些理论，只有那些被视为与任务相关的观察理论，只有那些被视为与任务相关的观察才应该被记录下来。才应该被记录下来。4.Observations and experiments are carried out in order to test or shed light on some theory,and only those observations considered relevant to that task should be recorded.上

48、一页上一页下一页下一页Back不管现在身在何地，黑人都是非洲人的后不管现在身在何地，黑人都是非洲人的后裔，但是数百年来，由于种种原因，他们裔，但是数百年来，由于种种原因，他们的遗传基因已经变得多样化且非常复杂的遗传基因已经变得多样化且非常复杂。5.Wherever they are now,black people are descended from Africans,but over the centuries,their genetic heritage has become diversified and complicated because of various reasons.上

49、一页上一页下一页下一页Back实际上，他们都同意这种观点：法律的变实际上，他们都同意这种观点：法律的变化引起了社会本质的变化以及社会中人与化引起了社会本质的变化以及社会中人与人之间关系的变化。人之间关系的变化。6.In effect,they agreed to the view that the very change in law brings about a change in the nature of society and human relationships within it.上一页上一页下一页下一页Back上一页上一页Back读写教程读写教程 IV:XIII.Read the following passage carefully and choose the best word or phrase to fill in each blank.1 10:ABCDD CBADC11 20:BAABD CDBAB