2023年6月英语四级仔细阅读真题及答案解析.docx
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1、2023年6月英语四级仔细阅读真题及答案解析Section CPassage OneQuestions 46 to 50 are based on the following passage.Declining mental function is often seen as a problem of old age,but certain aspects of brain function actually begin their decline in young adulthood, a new study suggests.The study, which followed more t
2、han 2,000 healthy adults between the ages of 18 and 60, found that certain mental functionsincluding measures of abstract reasoning, mental speed and puzzle-solvingstarted to dull as early as age 27.Dips in memory, meanwhile, generally became apparent around age 37.On the other hand, indicators of a
3、 persons accumulated knowledgelike performance on tests of vocabulary and general knowledgekept improving with age, according to findings published in the journal Neurobiology of Aging.The results do not mean that young adults need to start worrying about their memories. Most peoples minds function
4、at a high level even in their later years, according to researcher Timothy Salthouse.These patterns suggest that some types of mental flexibility decrease relatively early in adulthood, but that the amount of knowledge one has, and the effectiveness of integrating it with ones abilities,may increase
5、 throughout all of adulthood if there are no dispases, Salthouse said in a news release.The study included healthy, educated adults who took standard tests of memory, reasoning and perception at the outset and at some point over the next seven years.The tests are designed to detect subtle (细微的)chang
6、es in mental function, and involve solving Puzzles, recalling words and details from stories, and identifying patterns in collections of letters and symbols.In general, Salthouse and his colleagues found, certain aspects of cognition (认知能力)generally started to decline in the late 20s to 30s.The find
7、ings shed light on normal age-related changes in mental function, which could aid in understanding the process of dementia(痴呆),according to the researchers.By following individuals over time, Salthouse said, we gain insight in cognition changes, and may possibly discover ways to slow the rate of dec
8、line.The researchers are currently analyzing, the study participants health and lifestyle to see which factors might influence age-related cognitive changes.47.【题干】What is the common view of mental function?【选项】A.It varies from person to person.C.It gradually expands with age.B.It weakens in ones la
9、ter years.D.It indicates ones health condition.【答案】B【解析】Declining mental function is often seen as a problem of old age,but certain aspects of brain function actually begin their decline in young adulthood, a new study suggests.48.【题干】What does the new study find about mental functions?【选项】A.Some di
10、seases inevitably lead to their decline.B.They reach a peak at the age of 20 for most people.C.They are closely related to physical and mental exercise.D.Some of them begin to decline when people are still young.【答案】D【解析】but certain aspects of brain function actually begin their decline in young adu
11、lthood, a new study suggests.49.【题干】What does Timothy Salthouse say about peoples minds in most cases?【选项】A.They tend to decline in peoples later years.B.Their flexibility determines ones abilities.C.They function quite well even in old age.D.Their functioning is still a puzzle to be solved.【答案】C【解析
12、】Most peoples minds function at a high level even in their later years, according to researcher Timothy Salthouse.50.【题干】Although peoples minds may function less flexibly as they age, they_.【选项】A.may be better at solving puzzlesB.can memorize things with more easeC.may have greater facility in abstr
13、act reasoningD.can put what they have learnt into more effective use【答案】D【解析】These patterns suggest that some types of mental flexibility decrease relatively early in adulthood, but that the amount of knowledge one has, and the effectiveness of integrating it with ones abilities,may increase through
14、out all of adulthood if there are no dispases, Salthouse said in a news release.51.【题干】According to Salthouse, their study may help us_.【选项】A.find ways to slow down our mental decline6.find ways to boost our memoriesC.understand the complex process of mental functioningD.understand the relation betw
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