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  3. Read the following text. Choose the best

Read the following text. Choose the best

题库2022-08-02  55
问题 Read the following text. Choose the best word(s) for each numbered blank and mark A, B, C or D on the ANSWER SHEET. (10 points)　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.4．______A. unevenB. limitedC. damagingD. obscure
选项 A. uneven
B. limited
C. damaging
D. obscure
答案 C
解析 本题测试考生对词义的判断能力。Uneven不平衡的；不平均的；1imited有限的；damaging有破坏性的；obscure模糊的；晦涩的。此处需填入修饰impact（影响）的形容词，说明loss of mental focus（精神无法集中）产生的影响。这句话意在表明（这种衰退）表面上无害，但其实对职业、人际和个人的某方面有……影响。所填的词应与innocent（无害的）语义相反，故选C项damaging“有害的”。 A项填入空格后句子表示注意力不集中可能给职业、社会和个人的某方面带来“不均衡的”影响，但上下文没有提及这三者的影响均衡与否，故不对；B项limited和D项obscure修饰impact“影响”，则不能体现“表面上”与“潜在地”这种对比关系。
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