单选题The long-term threat to the survival of elephants is the loss of their natural Uhabitat/U.

单选题Intheflattriangularsurfacedepictedabove,iffeet,whatistheareaofthesurfaceinsquarefeet?(Figurenotnecessarilydrawntoscale.)

单选题[Focus on countability] A. expertise B. evidence C. equipment D. discourse

单选题Can you believe that I won the photo contest with the ______ of the two pictures that was most esthetic, even though I only tried to hang them where there were nails!

单选题If the area of a square with sides of length 8 centimeters is equal to the area of a rectangle with a width of 4 centimeters, what is the length of the rectangle, in centimeters? A. 4 B. 8 C. 12 D. 16 E. 18

单选题Many animals display ______ instincts only while their offspring are young and helpless. A. cerebral B. imperious C. rueful D. maternal

单选题The committee members resented ______ them of the meeting

单选题In his "Odyssey", Homer immortalized the idea of resisting temptation by having the protagonist tied to the mast of his ship, to hear yet not succumb to the beautiful, dangerous songs of the Sirens. Researchers have long been intrigued as to whether this ability to avoid, or defer, gratification is related to outcomes in life. The best-known test is the "marshmallow" experiment, in which children who could refrain from eating the confection for 15 minutes were given a second one. Children who could not wait tended to have lower incomes and poorer health as adults. New research suggests that kids who are unable to delay rewards are also more likely to become criminals later. Recently, four researchers used data from a Swedish survey in which more than 13,000 children aged 13 were asked whether they would prefer to receive $140 now or $1,400 in five years" time. About four-fifths of them said they were prepared to wait. Unlike previous researchers, the authors were able to track all the children and account for their parental background and cognitive ability. They found that the 13-year-olds who wanted the smaller sum of money at once were 32% more likely to be convicted of a crime during the next 18 years than those children who said they would rather wait for the bigger reward. Individuals who are impatient, they believe, prefer instant benefits and are therefore less likely to be deterred by potential punishments. But those who fret that a person"s criminal path is set already as a teenager should not despair. The four researchers offer a remedy. When the respondents" education was included in the analysis, they found that higher educational attainment was linked to a preference for delayed gratification. Educational attainment and patience are related either because patience helps students to do better or because schooling makes people more likely to postpone rewards. Fortunately, there is evidence in support of the latter theory. Francisco Perez-Arce of the RAND Corporation, a think-tank, interviewed around 2,000 applicants for Mexican universities. The students had similar credentials but some obtained admission through a lottery to a university that did not charge tuition fees, whereas the rest had to apply elsewhere. As a result, a higher proportion of lottery-winners than losers went to college. After a year, Mr. Perez-Arce found, the lottery-winners were more patient than the losers. Since the process was random, he concluded that higher education can make people place more weight on the future.

单选题Shopping habits in the United States have changed greatly in the last quarter of the 20th century. 1 in the 1900s most American towns and cities had a Main Street. Main Street was always in the heart of a town. This street was 2 on both sides with many 3 businesses. Here, shoppers walked into stores to look at all sorts of merchandise: clothing, furniture, hardware, groceries. 4 , some shops offered 5 . These shops included drugstores, restaurants, shoe-repair stores, and barber or hairdressing shops. 6 in the 1950s, a change began to 7 . Too many automobiles had crowded into Main Street 8 too few parking places were 9 shoppers. Because the streets were crowded, merchants began to look with interest at the open spaces 10 the city limits. Open space is what their car-driving customers needed and open space is what they got 11 the first shopping centre was built. Shopping centres, or rather malls, 12 as a collection of small new stores 13 crowded city centres. 14 by hundreds of free parking space, customers were drawn away from 15 areas to outlying malls. And the growing 16 of shopping centres led 17 to the building of bigger and better stocked stores. 18 the late 1970s, many shopping malls had almost developed into small cities themselves. In addition to providing the 19 of one stop shopping, malls were transformed into landscaped parks, 20 benches, fountains, and outdoor entertainment.

单选题The structural approach to the analysis of language is connected with ______. A. THEME and RHEME B. GOVERNMENT and BINDING C. IMMEDIATE CONSTITUENT ANALYSIS

单选题If you spill hot liquid on your skin it will ______ you. A. scale B. scald C. shun D. shunt

单选题A hat company ships its hats, individually wrapped, in 8-inch by 10-inch by 12-inch boxes. Each hat is valued at $7.50. If the company's latest order required a truck with at least 288,000 cubic inches of storage space in which to ship the hats in their boxes, what was the minimum value of the order? A. $960 B. $1,350 C. $1,725 D. $2,050 E. $2,250

单选题The following questions present a sentence, part of which or all of which is underlined. Beneath the sentence, you will find five ways of phrasing the underlined part. The first of these repeats the original; the other four are different. If you think the original is best, choose the first answer; otherwise choose one of the others. These questions test correctness and effectiveness of expression. In choosing your answer, follow the requirements of standard written English; that is, pay attention to grammar, choice of words, and sentence construction. Choose the answer that produces the most effective sentence; this answer should be clear and exact, without awkwardness, ambiguity, redundancy, or grammatical error.

单选题Microsoft Chairman Bill Gates recently told the nation"s governors that American high school education is "obsolete." He said, "When I compare our high schools to what I see when I"m traveling abroad, I am terrified for our workforce of tomorrow. In 2001, India graduated almost a million more students from college than the United States did. China graduates twice as many students with bachelor"s degrees as the U. S. and has six times as many graduates majoring in engineering. America is falling behind." Gates was describing a global economy in which the chance to move up into a better economic life is slipping overseas, along with jobs that can be performed anywhere—manufacturing in China, technology support in India, online order fulfillment across borders. The Internet brings Bhutan and Bangalore just as close to our offices and living rooms as Boise. Maybe closer. Our children"s competitors are not the other schools in the district or the state or even the nation. They are the technologically literate young people in Taiwan, India, Korea, and other developing nations. For today"s American students, learning and retraining will be a lifelong experience. In The World is Flat , a recent book analyzing the shift in the global economy, Thomas Friedman points out that the dot. com bubble inspired a massive outlay of capital to connect the continents. Undersea cable, universal software, high-tech imagery, and Google have erased geography. College graduates in Latin America, Central Asia, India, China, and Russia can do the information work Americans used to count on—in many cases better and in all cases cheaper. We are burning through reliable careers for our young people at high speed as technology relieves us of the tedium of repetitive work. The robots that vacuum our floors today will be filling our teeth tomorrow. Even jobs at Wal-Mart are endangered. Have you seen the self-check-out lanes? No cashiers required. To be competitive now, U. S. students must develop sophisticated critical thinking and analytical skills to manage the conceptual nature of the work they will do. They will need to be able to recognize patterns, create narrative, and imagine solutions to problems we have yet to discover. They will have to see the big picture and ask the big questions. How many high schools do you know that are nurturing minds like that? Are we supplying the conditions in our schools to create a new crop of original thinkers? Are we making sure our curricula and instructional programs are not relegated for repetitive practice, gathering and organizing information, remediation, and test preparation? Are we requiring all students to use their learning?

单选题My mother is a light sleeper, ______ to any sound even as low as the humming of a mosquito

单选题WhenhewasvisitingBrusselshe______ameetinganddemonstratedhisinvention.

单选题Which of the following, if true, best completes the passage below? The traditional view of Homer is that of a blind bard who wrote down the epic poems known as the Iliad and the Odyssey in the eighth century B.C.E. We know now, however, that this picture cannot be true. The language used in the epic poems contains elements of the Greek language dating from the twelfth to the eighth centuries B.C.E., but the Greek writing system was not developed until the late seventh century, when it was used to record clerical notes. A more accurate statement regarding Homer, therefore, is that, if he existed, he most likely A. wrote the poems down in the fifth century B.C.E., using a pre-existing oral tradition of Greek epic poetry. B. was involved in the recording of clerical notes in Greek in the seventh century. C. composed the poems orally in the eighth century and then dictated them to a scribe in the late seventh century. D. composed the poems orally in the twelfth century, using a predecessor of the Greek language. E. composed the poems orally in the eighth century, using elements of pre-existing Greek epic poetry.

单选题Scholars and students have always been great travellers. The official case for "academic mobility" is now often stated in impressive terms as a fundamental necessity for economic and social progress in the world, and debated in the corridors of Europe, but it is certainly nothing new. Serious students were always ready to go abroad in search of the most stimulating teachers and the most famous academies; in search of the purest philosophy, the most effective medicine, the likeliest road to gold. In the twentieth century, and particularly in the last 20 years, the old footpaths of the wandering scholars have become vast highways. The vehicle which has made this possible has of course been the aeroplane, making contact between scholars even in the most distant places immediately feasible, and providing for the very rapid transmission of knowledge. Apart from the vehicle itself, it is fairly easy to identify the main factors which have brought about the recent explosion in academic movement. Some of these are purely quantitative and require no further mention: there are far more centres of learning, and a far greater number of scholars and students. In addition one must recognize the very considerable multiplication of disciplines, particularly in the sciences, which by widening the total area of advanced studies has produced an enormous number of specialists whose particular interests are precisely defined. These people would work in some isolation if they were not able to keep in touch with similar isolated groups in other countries. Frequently these specialisations lie in areas where very rapid developments are taking place, and also where the research needed for developments is extremely costly and takes a long time. It is precisely in these areas that the advantages of collaboration and sharing of expertise appear most evident. Associated with this is the growth of specialist periodicals, which enable scholars to become aware of what is happening in different centres of research and to meet each other in conferences and symposia. From these meetings come the personal relationships which are at the bottom of almost all formalized schemes of cooperation, and provide them with their most satisfactory stimulus. But as the specialisations have increased in number and narrowed in range, there had been an opposite movement towards interdisciplinary studies. These owe much to the belief that one cannot properly investigate the incredibly complex problems thrown up by the modern world, and by recent advances in our knowledge along the narrow front of a single discipline. This trend has led to a great deal of academic contact between disciplines, and a far greater emphasis on the pooling of specialist knowledge, reflected in the broad subjects chosen in many international conferences.

单选题Homely Hotels has a customer loyalty program in which for every four nights a customer spends at a Homely Hotel, he or she receives a coupon good for one free night at any Homely Hotel. Recently people have begun selling these coupons on the Internet for less than the cost of a night at a Homely Hotel. This marketing of coupons has resulted in decreased revenue for the Homely Hotel chain. To discourage this undesirable trade in free-stay coupons, it would be best for Homely Hotels to restrict: A. The number of coupons a customer can receive in one year. B. Use of the coupons to the specific hotel in which they were issued. C. The valid dates of the coupons to only the month immediately following the date of issue. D. Use of the coupons to the recipient or people with the same last name. E. Use of the coupons to Homely Hotel franchises that charge an equal or lesser nightly rate than the franchise that issued the coupon.

单选题One of the biggest threats to a company's productivity is absenteeism. Studies have shown that companies with in-house childcare programs see fewer absences among their employees who are parents than companies without such programs. Therefore, many companies could boost their productivity by starting in-house childcare programs. Which of the following, if true, most weakens the above argument? A. Companies that reimburse outside childcare programs actually see less absenteeism among working parents than companies with in-house programs. B. In-house childcare programs create distractions for nonparents that can harm their productivity. C. Absenteeism is not a serious problem for companies that impose harsh penalties on employees who miss work. D. Studies have shown that employees with children are more likely than those without children to remain in the same job for more than five years. E. Potential employees generally view companies with in-house childcare programs as more desirable places to work than companies without such programs.