单选题
Advancing age means losing your hair, your waistline and your memory, right? Dana Denis is just 40 years old, but (21) she's worried about what she calls "my rolling mental blackouts." "I try to remember something and I just blank out," she says. You may (22) about these lapses, calling them "senior moments" or blaming "early Alzheimer's(老年痴呆症)." Is it an inescapable fact that the older you get, the (23) you remember? Well, sort of. But as time goes by, we tend to blame age (24) problems that are not necessarily age-related. "When a teenager can't find her keys, she thinks it's because she's distracted or disorganized," says Paul Gold "A 70-year-old blames her (25) ." In fact, the 70-year-old may have been (26) things for decades. In healthy people, memory doesn't worsen as (27) as many of us think. "As we (28) , the memory mechanism isn't (29) ," says psychologist Fergus Craik. "It's just inefficient." The brain's processing (30) slows down over the years, though no one knows exactly (31) Recent research suggests that nerve cells lose efficiency and (32) there's less activity in the brain. But, cautions Barry Gordon, "It's not clear that less activity is (33) . A beginning athlete is winded(气喘吁吁) more easily than a (34) athlete. In the same way, (35) the brain gets more skilled at a task, it expends less energy on it. There are (36) you can take to compensate for normal slippage in your memory gears, though it (37) effort. Margaret Sewell says: "We're a quick-fix culture, but you have to (38) to keep your brain (39) shape. It's like having a good body. You can't go to the gym once a year (40) expect to stay in top form./
【答案解析】此处的考点是对句式结构的正确理解。Recent research suggests that nerve cells lose efficiency and that there's less activity in the brain．这句话中suggests后面是一个并列宾语：suggest that…and that，其他选项连接均搭配不当，不合题意。
【答案解析】此处的考点是take steps to do sth．(采取措施做某事)。这句话的意思是：对记忆齿轮功能的正常下降你可采取一些补偿步骤。其他选项：A．stages舞台，阶段；C．advantages优势，有利条件；D．purposes目的，均不能与take形成恰当的搭配，因此选项B为正确答案。
单选题
A. makes B. takes C. does D. spends
【正确答案】
B
【答案解析】此处的考点是动宾搭配take effort(费力)。这句话的意思是：尽管这样做很费力。容易相混淆的是选项A．make effort的意思是“尽力”，如：Make an effort to arrive promptly．尽力早些赶到。因此正确B。