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.
19．______
本题测试考生词语搭配能力。carry（on）意为“进行，从事”。put（on）意为“穿衣；增加体重；上演；假装”。build （on）意为“以……为基础继续发展”。take（on）意为“接纳，承担；显现”。空格处要表达的是大脑训练项目调整和增强训练内容的目的。此外，所填动词语义取决于后面的内容“你正在逐渐增强的优势”,这就是一个基础。只有C项符合语义，表示大脑训练项目调整和增强训练内容的目的是“在你逐步增强的优势上进一步强化”。因此选C项。不定式的逻辑主语是主句的it，即the program，而A项carry on sth. 的逻辑主语应该是人，故排除；B项put on和D项take on都不与strengths（优势）搭配。
