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2021 年全国硕士研究生招生考试英语（一）试题及答案 考试采取“一题多卷”模式，试题答案顺序不统一，请依据试题进行核对。 Section I Use of English Directions: 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) Fluid intelligence is the type of intelligence that has to do with short-term memory and the ability to think quickly, logically, and abstractly in order to solve new problems. It _____(1)in young adulthood, levels out for a period of time, and then_____(2)starts to slowly decline as we age. But_____(3)aging is inevitable, scientists are finding that certain changes in brain function may not be. One study found that muscle loss and the_____(4)of body fat around the abdomen are associated with a decline in fluid intelligence. This suggests the_____(5)that lifestyle factors might help prevent or_____(6)this type of decline. The researchers looked at data that_____(7)measurements of lean muscle and abdominal fat from more than 4,000 middle-to-older-aged men and women and_____(8)that data to reported changes in fluid intelligence over a six-year period. They found that middle-aged people_____(9)higher measures of abdominal fat_____(10)worse on measures of fluid intelligence as the years_____(11). For women, the association may be_____(12)to changes in immunity that resulted from excess abdominal fat; in men, the immune system did not appear to be_____(13)It is hoped that future studies could_____(14)these differences and perhaps lead to different_____(15)for men and women. _____(16)there are steps you can_____(17)to help reduce abdominal fat and maintain lean muscle mass as you age in order to protect both your physical and mental _____(18). The tw...