2017年6月四级选词填空试题及答案

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2017年6月四级选词填空试题及答案

　　part 1

　　The popular notion that older people need less sleep than younger adults is a myth, scientists said yesterday.

　　While elderly people 47.tend to sleep for fewer hours than they did when they were younger, this has a 48.negative effect on their brain’s performance and they would benefit from getting more, according to research.

　　Sean Drummond, a psychiatrist at the University of California, San Diego, said that older people are more likely to suffer from broken sleep, while younger people are better at sleeping 49.efficiently straight through the night.

　　More sleep in old age, however, is 50.associated with better health, and most older people would feel better and more 51.alert if they slept for longer periods, he said. 考试大，考试伴你同行

　　"The ability to sleep in one chunk overnight goes down as we age but the amount of sleep we need to 52.function well does not change," Dr Drummond told the American Association for the Advancement of Science conference in San Diego.

　　"It’s 53.definitely a myth that older people need less sleep. The more healthy an older adult is, the more they sleep like they did when they were 54.younger. Our data suggests that older adults would benefit from 55.continuing to get as much sleep as they did in their 30s. That’s 56.different from person to person, but the amount of sleep we had at 35 is probably the same amount we need at 75."

　　47. N 空前有to填动词

　　48. L 空前冠词空后n.填a.

　　49. H 空后a.填ad.

　　50. B be associated with 常用词组

　　51. A 空前more填a.

　　52. J 空前to填动词

　　53. F 所在句完整填ad.加强语气

　　54. O 空前be动词缺表语填a.

　　55. E 空前介词, 空后介词+宾语, 填动名词

　　56. G 缺表语填a.

　　part 2

　　So mang people use the cell phone so frequantly every day,But ___47__little is certain adout he health effects of its use.Macufacturers___48___that cell phones meet government standards for safe radio- frequency radiation omission,but enough studies are beginning to document a possible ___49___in rare brain tumour(肿瘤)：bendaches and behavioral disorders in children to cause coneem.So far,the avidence isn't___50___on whether the use of cell phones __51__to any uncased risk of cancer.In a new

　　trial,researchers asked 47 yolunteers to ___52__in a project to measure glucose(葡萄糖)consurnption in the brain by scanning the brain to see how cells use energy.For both 50- minute scans,the volunteers had a cell phone __53__to each ear.During be first scan,the devices were turned off,but for the second scan,the phone on the right ear as___54____on and received a recorded- message call,although the yolume was muted(消毒)　　so the dise wouldn't bias the results.The results of the second scan abowed that the__55__of the brain rarest to the device had higher rales of glucose consumption than the rest of the brain.The study ows that cell phones can change brain activity,and __56__a whole new avenue for scientific quiry,tuough it doesn't say anything about whether cell-phone radiation can cause cancer.

　　注意：此部分试题请在答题卡2上作答。

　　A)conclusive 　　I)mission

　　B)contributes 　 J)participate

　　C)derive　　　　 K)particular

　　D)expresses 　　L)provides

　　E)fixed 　　　　　M)regions

　　F)immensely 　　N)surprisingly

　　G)increase 　　　O)switched

　　H)maintain

　　参考答案

　　47、F immensely

　　48、L provides