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1、2023年北京公共英语考试真题卷（9）本卷共分为1大题50小题，作答时间为180分钟，总分100分，60分及格。一、单项选择题（共50题，每题2分。每题的备选项中，只有一个最符合题意） 1.Many people who fly at least occasionally have come down with a cold or the flu shortly after disembarking. Is the air in airborne commercial jets (21) The Association of Flight Attendants (AFA), (22) whic
2、h 42,000 flight attendants with 27 airlines are represented, evidently thinks so. The organization claims that the incidence of air-quality-related diseases has (23) among its members and demands that prompt actions be (24) to improve the conditions in the airplane cabin.A study the AFA (25) in 1997
3、 uncovered about 1,000 self-reported incidents of headaches, dizziness and memory loss (26) flight attendants and passengers. Some flight attendants were too ill to (27) their safety duties, while others have been permanently disabled.Because of airlines’ efforts to (28) their expenses, cabin-
4、air filters are not cleaned (29) The complaints of flight attendants do not always give (30) to correct maintenance. Airlines turned to recycled air, (31) that they would reduce some of their costs. They are not required to put filters in. Airlines are (32) great pressure to get their flights out (3
5、3) . So they do not pay as much attention to systems that are not as (34) to flight schedule and safety.Recent research findings emphasize the concern that filters can (35) engine chemicals into the cabin air. This may not happen (36) every flight, but it is a persistent problem.In a study published
6、 in October 1998 an investigation was made (37) complaints of crew members (38) air quality and health. More than half of the 200 subjects reported health problems they (39) to cabin air. It was concluded that these health problems were consistent with (40) harmful gases and substances.27().Aperform
7、BachieveCcomprehendDproceed2.Many people who fly at least occasionally have come down with a cold or the flu shortly after disembarking. Is the air in airborne commercial jets (21) The Association of Flight Attendants (AFA), (22) which 42,000 flight attendants with 27 airlines are represented, evide
8、ntly thinks so. The organization claims that the incidence of air-quality-related diseases has (23) among its members and demands that prompt actions be (24) to improve the conditions in the airplane cabin.A study the AFA (25) in 1997 uncovered about 1,000 self-reported incidents of headaches, dizzi
9、ness and memory loss (26) flight attendants and passengers. Some flight attendants were too ill to (27) their safety duties, while others have been permanently disabled.Because of airlines’ efforts to (28) their expenses, cabin-air filters are not cleaned (29) The complaints of flight attendan
10、ts do not always give (30) to correct maintenance. Airlines turned to recycled air, (31) that they would reduce some of their costs. They are not required to put filters in. Airlines are (32) great pressure to get their flights out (33) . So they do not pay as much attention to systems that are not
11、as (34) to flight schedule and safety.Recent research findings emphasize the concern that filters can (35) engine chemicals into the cabin air. This may not happen (36) every flight, but it is a persistent problem.In a study published in October 1998 an investigation was made (37) complaints of crew
12、 members (38) air quality and health. More than half of the 200 subjects reported health problems they (39) to cabin air. It was concluded that these health problems were consistent with (40) harmful gases and substances.28().AdeclineBcutCshrinkDsave3.Many people who fly at least occasionally have c
13、ome down with a cold or the flu shortly after disembarking. Is the air in airborne commercial jets (21) The Association of Flight Attendants (AFA), (22) which 42,000 flight attendants with 27 airlines are represented, evidently thinks so. The organization claims that the incidence of air-quality-rel
14、ated diseases has (23) among its members and demands that prompt actions be (24) to improve the conditions in the airplane cabin.A study the AFA (25) in 1997 uncovered about 1,000 self-reported incidents of headaches, dizziness and memory loss (26) flight attendants and passengers. Some flight atten
15、dants were too ill to (27) their safety duties, while others have been permanently disabled.Because of airlines’ efforts to (28) their expenses, cabin-air filters are not cleaned (29) The complaints of flight attendants do not always give (30) to correct maintenance. Airlines turned to recycle
16、d air, (31) that they would reduce some of their costs. They are not required to put filters in. Airlines are (32) great pressure to get their flights out (33) . So they do not pay as much attention to systems that are not as (34) to flight schedule and safety.Recent research findings emphasize the
17、concern that filters can (35) engine chemicals into the cabin air. This may not happen (36) every flight, but it is a persistent problem.In a study published in October 1998 an investigation was made (37) complaints of crew members (38) air quality and health. More than half of the 200 subjects repo
18、rted health problems they (39) to cabin air. It was concluded that these health problems were consistent with (40) harmful gases and substances.29().AdefinitelyBefficientlyCsmoothlyDregularly4.Human intelligence and the IQ scales used to measure it once again are becoming the focus of fiery debate.A
19、s argument rages over declining test scores in the nation’s schools ,an old but explosive issue is reappearing ;What is intelligence - and is it determined largely by geneticsThe controversy erupted more than a decade ago when some U. S. scholars saw a racial pattern in the differing scores of
20、 students taking intelligence and college-entrance tests.Now, the racial issue is being joined by others. Teachers, psychologists, scientists and lawyers argue over the question of whether IQ - intelligence quotient - tests actually measure mental ability, or if findings are skewed by such factors &
21、rsquo;as family background, poverty and emotional disorders.Moreover, some authorities assert that the rise in the number of college-educated Americans and their tendency to marry among themselves are creating a class of supers mart children of brainy parents - and, on the other side of the scale, a
22、 lumpenproletariat of children reflecting the supposedly inferior brainpower of their parents.Critics such as Harvard University biologist Richard C. Lewontin disagree. If mental ability were largely determined by inheritance, he says, efforts to enhance intelligence through the betterment of both h
23、ome and child-rearing environments could only be marginally effective. He comments:Genetic determinism could be used to justify existing social injustice as predetermined and in-evitable and would render efforts made toward equalitarian goals as useless. Supporting Lewontin in this is J. McVicker Hu
24、nt, a professor at the University of Illinois, who maintains that IQ levels can be raised significantly by exposing children at an early age to stimulating environments. Hunt’s studies show that early help in such areas as education and nutrition can raise a child’s IQ by an average of 3
25、0 to 35 points.At stake in the uproar over IQ is the national commitment to improve the capabilities of the poor by investing billions of dollars annually in educational, medical and job programs.The controversy over IQ tests is reappearing because of ().Athe newly found racial pattern underlying st
26、udents’ performance.Bthe worsening students’ performance in their studies.Cthe long-standing division in the definition of intelligence.Dthe dubious IQ scales used to measure intelligence.5.With a new Congress drawing near, Democrats and Republicans are busily designing competing economi
27、c stimulus packages. The Republicans are sure to offer tax cuts, the Democrats - among other things - financial relief for the states. There is one measure, however, that would provide not only an immediate boost to the economy but also immediate relief to those most in need: a carefully crafted ext
28、ension of the federal unemployment insurance program. The Senate approved such an extension before it adjourned in November. The House of Representatives refused to go along. It was among the greatest failures of the 107th Congress.One consequence is that jobless benefits for an estimated 780,000 Am
29、ericans will abruptly stop tomorrow, even though most recipients have not yet exhausted their benefits. President Bush failed to show any leadership on this matter during the November Congress. Later, he finally asked Congress to extend the program for these workers and to make the benefits effectiv
30、e from Dec. 28.That’s not enough. The way unemployment insurance typically works is that states provide laid-off workers with 26 weeks of benefits, followed by 13 weeks of federal aid. Under Mr. Bush’s scheme, federal benefits would be extended only for those who were already receiving t
31、hem on Dec.28. The extension would not cover the jobless workers who will exhaust their regular state-funded benefits after Dec. 28 - an estimated 95,000 every week - but will receive no federal help unless the program is re-authorized. By the end of March, 1.2 million workers could fall into this c
32、ategory.The Senate saw this problem coming, and under the leadership of Hillary Rodham Clinton for New York and Don Nickles of Oklahoma, passed a bill that would not only have covered people already enrolled in the federal program but provided 13 weeks of assistance for those losing their state bene
33、fits in the new year. The House, for largely trivial reasons, refused to go along.Bill Frist, the new Senate majority leader, says he is looking for ways to put a kinder, gentler face on the Republican Party. Passing the Clinton-Nickles bill would be a good way to begin. The House should then follow
34、 suit. One of the House’s complaints last year was that, at $ 5 billion, the Clinton-Nickles bill was too expensive. That’s ridiculous, considering the costs of the tax cuts that House Republicans have in mind.The unemployment rate last month stood at 6 percent, the highest since mid-199
35、4. The country could use a $ 5 billion shot in the arm right about now. So could a lot of increasingly desperate people.According to the author, the proposed extension is().Awhat the coming Congress should reconsider.Bexcluded from the economic stimulus packages.Ca relief program carefully designed
36、by the House.Dput forward by both Republicans and Democrats.6.Many people who fly at least occasionally have come down with a cold or the flu shortly after disembarking. Is the air in airborne commercial jets (21) The Association of Flight Attendants (AFA), (22) which 42,000 flight attendants with 2
37、7 airlines are represented, evidently thinks so. The organization claims that the incidence of air-quality-related diseases has (23) among its members and demands that prompt actions be (24) to improve the conditions in the airplane cabin.A study the AFA (25) in 1997 uncovered about 1,000 self-repor
38、ted incidents of headaches, dizziness and memory loss (26) flight attendants and passengers. Some flight attendants were too ill to (27) their safety duties, while others have been permanently disabled.Because of airlines’ efforts to (28) their expenses, cabin-air filters are not cleaned (29)
39、The complaints of flight attendants do not always give (30) to correct maintenance. Airlines turned to recycled air, (31) that they would reduce some of their costs. They are not required to put filters in. Airlines are (32) great pressure to get their flights out (33) . So they do not pay as much a
40、ttention to systems that are not as (34) to flight schedule and safety.Recent research findings emphasize the concern that filters can (35) engine chemicals into the cabin air. This may not happen (36) every flight, but it is a persistent problem.In a study published in October 1998 an investigation
41、 was made (37) complaints of crew members (38) air quality and health. More than half of the 200 subjects reported health problems they (39) to cabin air. It was concluded that these health problems were consistent with (40) harmful gases and substances.30().AhopeBattentionCriseDchance7.Revolutionar
42、y innovation is now occurring in all scientific and technological fields. This wave of unprecedented change is driven primarily by advances in information technology, but it is much larger in scope. We are not dealing simply with an Information Revolution but with a Technology Revolution.To anticipa
43、te developments in this field, the George Washington University Forecast of Emerging Technologies was launched at the start of the 1990s. We have now completed four rounds of our Delphi survey - in 1990,1992,1994,and 1996 - giving us a wealth of data and experience. We now can offer a reasonably cle
44、ar picture of what can be expected to happen in technology over the next three decades.Time horizons play a crucial role in forecasting technology. Forecasts of the next five to ten years are often so predictable that they fall into the realm of market research, while those more than30 or 40 years a
45、way are mostly speculation. This leaves a 10-to 20-year window in which to make useful forecasts. It is this time frame that our Forecast addresses.The Forecast uses diverse methods, including environmental scanning, trend analysis, Delphi surveys, and model building. Environmental scanning is used
46、to identify emerging technologies. Trend analysis guides the selection of the most important technologies for further study, and a modified Delphi survey is used to obtain forecasts. Instead of using the traditional Delphi method of providing respondents with immediate feedback and requesting additi
47、onal estimates in order to arrive at a consensus, we conduct another survey after an additional time period of about two years.Finally, the results are portrayed in time periods to build models of unfolding technological change. By using multiple methods instead of relying on a single approach, the
48、Forecast can produce more reliable, useful estimates.For our latest survey conducted in 1996, we selected 85 emerging technologies representing the most crucial advances that can be foreseen. We then submitted the list of technologies to our panel of futurists for their judgments as to when ( or if)
49、 each technological development would enter the mainstream, the probability that it would, happen, and the estimated size of the economic market for it. In short, we sought a forecast as to when each emerging technology will have actually emerged. What we are faced with at present can be best described as a revolution in().Ainformation.Badvanced method.Cscience.Dtechnology.8.Queuse are long. Life is short. So why waste time waiting when you can pay