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  3. As many people hit middle age,they often

As many people hit middle age,they often

admin2022-08-02  7
问题 As many people hit middle age,they often start to notice that their memory and mental clarity are not what they used to be.We suddenly can’t remember___1___we put the keys just a moment ago,or an old acquaintance’s name,or the name of an old band we used to love.As the brain___2___,we refer to these occurrences as“senior moments.”___3___seemingly innocent,this loss of mental focus can potentially have a（n）___4___impact on our professional,social,and personal___5___.Neuroscientists,experts who study the nervous system,are increasingly showing that there’s actually a lot that can be done.It___6___out that the brain needs exercise in much the same way our muscles do,and the right mental___7___can significantly improve our basic cognitive___8___.Thinking is essentially a___9___of making connections in the brain.To a certain extent,our ability to___10___in making the connections that drive intelligence is inherited.___11___,because these connections are made through effort and practice,scientists believe that intelligence can expand and fluctuate___12___mental effort.Now,a new Web-based company has taken it a step___13___and developed the first“brain training program”designed to actually help people improve and regain their mental___14___.The Web-based program___15___you to systematically improve your memory and attention skills.The program keeps___16___of your progress and provides detailed feedback___17___your performance and improvement.Most importantly,it___18___modifies and enhances the games you play to___19___on the strengths you are developing—much like a（n）___20___exercise routine requires you to increase resistance and vary your muscle use.（20）选？A.riskyB.effectiveC.idleD.familiar
选项 A.risky
B.effective
C.idle
D.familiar
答案 D
解析 上下文语义衔接+形容词辨析本句句义为“最重要的是，它不断调整和优化你参与的游戏，以强化你正在培养的优势——就像_____常规训练可以提高你的抵抗力和变化肌肉使用的方式”。从上下文看，作者对这种训练程序持积极态度，因此effective最符合句意，故D为正确答案。选项A和C含有消极含义，不符合句意。选项B不能明确表达积极的含义，故排除。
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