专业八级-910及答案解析.doc

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1、专业八级-910 及答案解析(总分：100.00，做题时间：90 分钟)一、PART LISTENING COM(总题数：0，分数：0.00)二、SECTION A(总题数：1，分数：10.00)填空项 1:_填空项 1:_填空项 1:_填空项 1:_填空项 1:_填空项 1:_填空项 1:_填空项 1:_填空项 1:_填空项 1:_三、SECTION B(总题数：1，分数：5.00)(1).According to the conversation what is Dr. Gus purpose?（分数：1.00）A.To have a talk with exhibitor.B.To pu

2、rchase a lab.C.To discuss the possibility of negotiation with the Universal Computers Ltd.D.To inquire more information about the scientific apparatus.(2).They have been concerned with the following terms EXCEPT_.（分数：1.00）A.millions of instructions per secondB.discountC.remote connectionD.management

3、 committee(3).From the conversation we know if we buy more products from the Universal Computers Ltd., _.（分数：1.00）A.we can earn more moneB.we can benefit moreC.they will give us more serviceD.they will move their main building to China(4).When can exhibitor expect to get an answer?（分数：1.00）A.Within

4、a month or two.B.By Tuesday.C.Very soon.D.Immediately.(5).From the conversation we can deduce that_.（分数：1.00）A.they have a good beginning of tradingB.they are eager to know each otherC.they want to shake hands in BeijingD.they hate the barriers between them四、SECTION C(总题数：3，分数：5.00)1.Question 6 is b

5、ased on the following news. According to the news, these militants_.（分数：1.00）A.suffered severe casualtiesB.were on the recently issued list of terroristsC.fought with Saudi police forcesD.were thought to be hiding in al-Rawdah districtQuestions 7 and 8 are based on the following news. （分数：2.00）(1).W

6、hich statement is NOT true ?（分数：1.00）A.The girl was living with her mother.B.The landlady witnessed the crime.C.The girl and the suspect probably were dating.D.The girl was found dead on the floor.(2).We can learn from the news that_.（分数：1.00）A.police provided detail in formations about the girlB.To

7、bago has a population of 1.2 millionC.homicide increased in TobagoD.Tobago is generally a peaceful islandQuestions 9 and 10 are based on the following news. （分数：2.00）(1).The reasons why the church wanted to burn Harry Potter books didnt include that _.（分数：1.00）A.it believed that the books were an ab

8、horrence to GodB.it believed that the books would weaken the communication with GodC.it believed that the existence of God had been confused by the bookD.it believed that the books would ruin the lives of many young people(2).Which statement is not true?（分数：1.00）A.The stories of Harry Potter are cri

9、ticized in some other cities in U.S except New Mexico.B.Young people are fascinated with Harry Potter.C.Christian churches hate Harry Potter.D.Pastor Jack Brock planned to burn the Harry Potter books on Sunday.五、PART READING COMPR(总题数：0，分数：0.00)六、TEXT A(总题数：1，分数：5.00)Fish farming in the desert may a

10、t first sound like an anomaly, but in Israel over the last decade a scientific hunch has turned into a bustling business.Scientists here say they realized they were no to something when they found that brackish water drilled from underground desert aquifers (含土水层) hundreds of feet deep could be used

11、 to raise warm-water fish. The geothermal water, less than one-tenth as saline as sea water, free of pollutants and a toasty 98 degrees on average, proved an ideal match.“It was not simple to convince people that growing fish in the desert makes sense,“ said Samuel Appelbaum, a professor and fish bi

12、ologist at the Jacob Blaustein Institutes for Desert Research at the Sede Boqer campus of Ben-Gurion University of the Negev.“It is important to stop with the reputation that arid land is nonfertile, useless land,“ said Professor Appelbaum, who pioneered the concept of desert aquaculture in Israel i

13、n the late 1980s. “We should consider arid land where subsurface water exists as land that has great opportunities, especially in food production because of the low level of competition on the land itself and because it gives opportunities to its inhabitants.“The next step in this country, where wat

14、er is scarce and expensive, was to show farmers that they could later use the water in which the fish are raised to irrigate their crops in a system called double usage. The organic waste produced by the cultured fish makes the water especially useful, because it acts as fertilizer for the crops.Fie

15、lds watered by brackish water dot Israels Negev and Arava Deserts in the south of the country, where they spread out like green blankets against a landscape of sand dunes and rocky outcrops. At Kibbutz Mashabbe Sade in the Negev, the recycled water from the fish ponds is used to irrigate acres of ol

16、ive and jojoba groves. Elsewhere it is also used for irrigating date palms and alfalfa.The chain of multiple users for the water is potentially a model that can be copied, especially in arid third world countries where farmers struggle to produce crops, and Israeli scientists have recently been pedd

17、ling their ideas abroad.Dry lands cover about 40 percent of the planet, and the people who live on them are often among the poorest in the world. Scientists are working to share the desert aquaculture technology they fine-turned here with Tanzania, India, Australia and China, among others. (Similar

18、methods offish farming are being used in the Sonoran Desert of Arizona.)“Each farm could run itself, which is important in the developing world,“ said Alon Tal, a leading Israeli environmental activist who recently organized a conference on desertification, with the United Nations Convention to Comb

19、at Desertification and Ben-Gurion University, that brought policy makers and scientists from 30 countries to Israel.“A whole village could adopt such a system,“ Dr. Tal added.At the conference, Gregoire de Kalbermatten, deputy secretary general of the antidesertification group at the United Nations,

20、 said, “We need to learn from the resilience of Israel in developing dry lands.“Israel, long heralded for its agricultural success in the desert through innovative technologies like drip irrigation, has found ways to use low-quality water and what is considered terrible soil to grow produce like swe

21、et cherry tomatoes, people, asparagus and melon, marketing much of it abroad to Europe, especially during winter.The history of fish-farming in nondesert areas here, mostly in the Galilee region near the sea, dates back to the late 1920s, before Israel was established as a state. At the time, the co

22、untry was extremely poor and meat was considered a luxury. But fish was a cheap food source, so fish farms were set up on several kibbutzim in the Galilee.The early Jewish farmers were mostly Eastern Europeans, and Professor Safriel said, “they only knew gefilte fish, so they grew carp.“Eventually t

23、hey expanded to other varieties of fish including tilapia, striped bass and mullet, as well as ornamental fish.The past decade has seen the establishment of about 15 fish farms producing both edible and ornamental fish in the Negev and Arava Deserts.Fish farming, meanwhile, has became more lucrative

24、 worldwide as people seek more fish in their diet for better health, and ocean fisheries increasingly are being depleted.The practice is not without critics, who say it can harm the environment and the fish. In Israel there was a decision by the government to stop fish fanning in the Red Sea near th

25、e southern city of Eilat by 2008 because it was deemed damaging to nearby coral reefs.Some also argue that the industry is not sustainable in the long term because most of the fish that are fanned are carnivorous and must be fed a protein-rich diet of other fish, usually caught in the wild. Another

26、criticism is that large numbers of fish are kept in relatively small areas, leading to a higher risk of disease.Professor Appelbaum said the controversy surrounding fish farming in ocean areas does not apply to desert aquaculture, which is in an isolated, controlled area, with much less competition

27、for resources.（分数：5.00）(1).Fish farming in the desert is possible because_.（分数：1.00）A.fresh water can be drilled from underground desert aquifersB.the water drilled from the underground desert aquifers is only one-tenth as salty as sea waterC.the water drilled from the underground desert aquifers co

28、ntains more nutritious elements than fresh waterD.the water drilled from the underground desert aquifers is not as hot as the sea water(2).According to Professor Appelbaum, what is the important step to convince people it is possible to develop fish farming in desert?（分数：1.00）A.To inform them fish f

29、arming is a lucrative industry worldwide as people seek more fish in their diet for better health.B.To rid them of the preconception that arid land is unfertile and useless.C.To help them with technical support.D.To persuade government to provide more economic support.(3).Israeli scientists are work

30、ing to share their desert aquaculture technology with countries like Tanzania, India and China because_.（分数：1.00）A.all of them are third world countriesB.these countries are still struggling with lack of enough foodC.these countries are covered by large areas of dry landD.people who live in these co

31、untries are among the poorest in the world(4).According to Uriel Safriel, what is the important force that drivers Israeli scientists to develop desert aquiculture as well as agriculture technologies?（分数：1.00）A.The fact that Israel is a country where fresh water is scarce and valuable.B.The fact tha

32、t Israelis are forced to wring food from arid lands.C.The Israeli determination to reconstruct their country.D.The Hebrew belief that desert is a reconstruct their country.(5).Which of the following statements offish farming in Israel is right?（分数：1.00）A.The history offish farming in desert in Israe

33、l can be traced back to the 1920s.B.Fish farming in desert may to harm to the environment.C.Fish farming in desert may not be sustainable in the long term.D.Fish farming in desert is more advantageous than that in ocean areas.七、TEXT B(总题数：1，分数：5.00)One thing that distinguishes the online world from

34、the real one is that it is very easy to find things. To find a copy of The Economist in print, one has to go to a news-stand, which may or may not carry it. Finding it online, though, is a different proposition. Just go to Google, type in “economist“ and you will be instantly directed to . Though it

35、 is difficult to remember now, this was not always the case. Indeed, until Google, now the worlds most popular search engine, came on to the scene in September 1998, it was not the case at all. As in the physical world, searching online was a hit-or-miss affair.Google was vastly better than anything

36、 that had come before: so much better, in fact, that it changed the way many people use the web. Almost overnight, it made the web far more useful, particularly for non- specialist users, many of whom now regard Google as the internets front door. The recent fuss over Googles stock market flotation

37、obscures its far wider social significance: few technologies, after all, are so influential that their names become used as verbs.Google began in 1998 as an academic research project by Sergey Brin and Lawrence Page, who were then graduate students at Stanford University in Palo Alto, California. It

38、 was not the first search engine, of course. Existing search engines were able to scan or “crawl“ a large portion of the web, build an index, and then find pages that matched particular words. But they were less good at presenting those pages, which might number in the hundreds of thousands, in a us

39、eful way.Mr Brins and Mr Pages accomplishment was to devise a way to sort the results by determining which pages were likely to be most relevant. They did so using a mathematical recipe, or algorithm, called PageRank. This algorithm is at the heart of Googles success, distinguishing it from all prev

40、ious search engines and accounting for its apparently magical ability to find the most useful web pages.Untangling the webPageRank works by analysing the structure of the web itself. Each of its billions of pages can link to other pages, and can also, in turn, be linked to. Mr Brin and Mr Page reaso

41、ned that if a page was linked to many other pages, it was likely to be important. Furthermore, if the pages that linked to a page were important, then that page was even. more likely to be important. There is, of course, an inherent circularity to this formulathe importance of one page depends on th

42、e importance of pages that link to it, the importance of which depends in turn on the importance of pages that link to them. But using some mathematical tricks, this circularity can be resolved, and each page can be given a score that reflects its importance.The simplest way to calculate the score f

43、or each page is to perform a repeating or “iterative“ calculation I see article). To start with, all pages are given the same score. Then each link from one page to another is counted as a “vote“ for the destination page. Each pages score is recalculated by adding up the contribution from each incom

44、ing link, which is simply the score of the linking page divided by the number of outgoing links on that page. (Each pages score is thus shared out among the pages it links to.)Once all the scores have been recalculated, the process is repeated using the new scores, until the scores settle down and s

45、top changing (in mathematical jargon, the calculation “converges“. The final scores can then be used to rank search results: pages that match a particular set of search terms are displayed in order of. descending score, so that the page deemed most important appears at the top of the list.（分数：5.00）(

46、1).We can infer from the 1st paragraph that by “hit-or-miss“ it is meant _.（分数：1.00）A.before Google, searching online was .impossibleB.before Google, searching online lacked accuracyC.before Google, searching online was difficultD.Google is easy to use(2).“Though it is difficult to remember now, thi

47、s was not always the case.“ In the 1st paragraph, this sentence suggests that _.（分数：1.00）A.today Google has become a commonplace way to find information onlineB.Google made a great contribution to searching onlineC.Google changed a lotD.Google is different from other search engines(3).The most impor

48、tant factor in Googles success is _.（分数：1.00）A.its unique mathematical recipeB.the popularity of its brand among usersC.that it was the first search engine in the worldD.its stock market flotation(4).“But they were less good at presenting those pages, which might number in the hundreds of thousands,

49、 in a useful way.“ This sentence in the 3rd paragraph tells us that _.（分数：1.00）A.other search engines are less convenient in useB.Google is the best search engineC.there are too many search engineD.all the search engines are basically the same(5).Which of the following is NOT true?（分数：1.00）A.Each page can be given a score that reflects i