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  3. What is it about walking, in particular, that makes it so amenable to thinking and writing? The answer begins with changes to ou

What is it about walking, in particular, that makes it so amenable to thinking and writing? The answer begins with changes to ou

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问题     What is it about walking, in particular, that makes it so amenable to thinking and writing? The answer begins with changes to our chemistry. When we go for a walk, the heart pumps faster, circulating more blood and oxygen not just to the muscles but to all the organs—including the brain. Many experiments have shown that after or during exercise, even very mild exertion, people perform better on tests of memory and attention.【B6】_______________
    The way we move our bodies further changes the nature of our thoughts, and vice versa.【B7】_____________Likewise, when drivers hear loud, fast music, they unconsciously step a bit harder on the gas pedal. Walking at our own pace creates an unadulterated feedback loop between the rhythm of our bodies and our mental state that we cannot experience as easily when we’re jogging at the gym, steering a car, biking, or during any other kind of locomotion.
    Where we walk matters as well. In a study led by Marc Berman of the University of South Carolina, students who ambled through an arboretum improved their performance on a memory test more than students who walked along city streets. A small but growing collection of studies suggests that spending time in green spaces—gardens, parks, forests—can rejuvenate the mental resources that man-made environments deplete.【B8】_____________In contrast, walking past a pond in a park allows our mind to drift casually from one sensory experience to another, from wrinkling water to rustling reeds.
    Still, urban and pastoral walks respectively offer unique advantages for the mind.【B9】______________Virginia Woolf.
    an English writer and one of the foremost modernists of the twentieth century, relished the creative energy of London’s streets, describing it in her diary as "being on the highest crest of the biggest wave, right in the centre and swim of things." But she also depended on her walks through England’s South Downs to have space to spread her mind out in. And, in her youth, she often travelled to Cornwall for the summer, where she loved to spend her afternoons in solitary trampling through the countryside.
    There, it becomes apparent that writing and walking are extremely similar feats, equal parts physical and mental.【B10】________________Likewise, writing forces the brain to review its own landscape, plot a course through that mental terrain, and transcribe the resulting trail of thoughts by guiding the hands. Walking organizes the world around us; writing organizes our thoughts.
    [A]  Psychologists have learned that attention is a limited resource that continually drains throughout the day, for example, crowded intersection—rife with pedestrians, cars, and billboards—bats our attention around.
    [B]   Psychologists who specialize in exercise music have quantified what many of us already know: listening to songs with high tempos motivates us to run faster, and the swifter we move, the quicker we prefer our music.
    [C]  A walk through a city provides more immediate stimulation—a greater variety of sensations for the mind to play with. But, if we are already at the brink of overstimulation, we can turn to nature in-stead.
    [D]  When we stroll, the pace of our feet naturally vacillates with our moods and the cadence of our inner speech; at the same time, we can actively change the pace of our thoughts by deliberately walking more briskly or by slowing down.
    [E]   When we choose a path through a city or forest, our brain must survey the surrounding environment, construct a mental map of the world, settle on a way forward, and translate that plan into a series of footsteps.
    [F]  Walking on a regular basis also promotes new connections between brain cells, staves off the usual withering of brain tissue that comes with age, increases the volume of the hippocampus (a brain region crucial for memory), and elevates levels of molecules that both stimulate the growth of new neurons and transmit messages between them.
    [G]  Because we don’t have to devote much conscious effort to the act of walking, our attention is free to wander—to overlay the world before us with a parade of images from the mind’s theatre.
【B8】
选项
答案A
解析 空格前提到有研究发现，置身绿色空间可以恢复人们在人造环境中消耗的精神资源。空格后说，绕公园的池塘行走让我们的大脑可以在不同的感官体验之间转换，其中“公园池塘”对应空格前提到的“绿色空间”，而这种感官体验是精神资源，可见空格后所述应该就是空格前提到的“绿色空间恢复人消耗的精神资源”。In contrast表明空格处与空格后的情形相反，空格处讲述的应该是“人造环境消耗精神资源”的情形。A描述的是人造环境消耗精神的情形，其中“十字路口”(crowded intersection)对应空格前提到的“人造环境”，而“注意力涣散”(bats our attention around)对应空格前说的“消耗精神资源”。A刚好与空格后说的情形形成对照，体现空格后In contrast蕴含的逻辑关系，故本题选A。
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