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1、2022-2023年广东省河源市大学英语6级大学英语六级测试卷(含答案)学校:_ 班级:_ 姓名:_ 考号:_一、2.Reading Comprehension (Skimming and Scanning)(20题)1.The State of Rondonia and Para State belong to the west Amazon.A.Y B.N C.NG2.Sneezing will intensify the symptom of inflammatory headaches because it will enlarge _.3.Any two networks in pi
2、conets is unlikely to be on the same frequency simultaneously because each network is changing its _ thousands of times a second.4.Genetically modified crops can help to improve _.A.nutrient contents and farming productivityB.beta-carotene contents in riceC.vitamin A and iron elements in cropD.attri
3、bution to resist insects5.It is reported by Roland Anderson that the GPOs are filled with _.6.Health might be defined as the ability to function effectively in meeting physical, emotional, and mental stresses of life.A.Y B.N C.NG7.Vioxx showed no connection to heart problems in its clinical trial.A.
4、Y B.N C.NG8.The author suggests that the wife keep the money while the husband decides how to spend it.A.Y B.N C.NG9.When do people who retire start collecting Social Security benefits?A.Immediately after they retire.B.2 months after they retire.C.2 years after the normal retiring age.D.2 years befo
5、re they retire.10.Part Reading Comprehension (Skimming and Scanning)Directions: In this part, you will have 15 minutes to go over the passage quickly and answer the questions on Answer Sheet 1.For questions 1-4, markY (for YES) if the statement agrees with the information given in the passage;N (for
6、 NO) if the statement contradicts the information given in the passage;NG (for NOT GIVRN) if the information is not given in the passage.For questions 5-10, complete the sentences with the information given in the passage.Unity and DiversityMany physicists are engaged in the search for a theory of e
7、verything. Biologists, smugly, think they have found one already. Organisms that survive long enough to reproduce and are attractive enough to find a mate pass their genes on to the next generation. Those that do not are evolutionary cul-de-sacs. But the detailshow you go on from the basic principle
8、s of evolution to explain large-scale patterns in biologyare more divisive. Scientific camps form. Their leaders step onto soap boxes. And only rarely do people concede that their own theories and those of their opponents are not always mutually exclusive.Since the early 1970s, the two grandest patt
9、erns of lifehow species are arranged in space and how they are arranged in timehave divided their opposing camps quite neatly. Those who squabble over space disagree about why there are more species in the tropics than anywhere else. To them, the tropics are either where species are more often born
10、(cradles of diversity) or where they tend not to die (museums of diversity). By contrast, biologists concerned with patterns in time tenaciously debate whether new species come into being in a smooth and gradual manner, or whether the history of life is actually a series of bursts of change that are
11、 interspersed with periods when nothing much happens.Two papers just published in Science have cast light on these questions, and their findings, if not necessarily resulting in compromise, do show the value of taking leaves out of other peoples books. The space biologists have looked into time, nam
12、ely the fossil record over the past 11m years. Meanwhile the time biologists have looked at the here and now and found evidence in living species for periods of rapid evolution in their genes.Biological SpacetimeThe space biologists have the advantage that they agree about the pattern they are tryin
13、g to explain. Almost all groups of life that have been studiedbe they fungi, plants, vertebrates or invertebrates, and no matter whether they occur in forests, streams or seasseem to have more species the closer they are to the equator.To decide whether the tropics are a cradle or a museum, though,
14、involves picking this pattern apart with statistics. And statistics work best when you have more than one sample. That is the reason for reaching into the past.David Jablonski, of the University of Chicago, and his colleagues created their samples by dividing the past 11m years into three periods. F
15、or simplicitys sake, they also chopped the Earths surface into two: tropical regions and everywhere else, which they called the extratropics.To avoid sampling bias, they restricted their analysis to one group of animalsthe bivalve molluscsthat fossilise well. This allowed them to follow 431 lineages of marine bivalve through the course of geological time. The vast majority of these lineages appear in the tropics and then spread into the extratropics, in other words, the tropics do, indeed, act as cradles of biodiversity.In fact, the pattern Dr Jablonski reports is probabl
