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2017年6月英語四級閱讀真題及答案 第1套 選詞填空

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選詞填空
Directions:In this section, there is a passage with ten blanks. You are required to select one word for each blank from a list of choices given in a word bank following the passage. Read the passage through carefully before making your choices. Each choice in the bank is identified by a letter. Please mark the corresponding letter for each item onAnswer Sheet 2 with a single line through the centre. You may not use any of the words in the bank more than once.


As if you needed another reason to hate the gym, it now turns out that exercise can exhaust not only your muscles, but also your eyes. Fear not, however, for coffee can perk them right up again. During 26_____ exercise, our muscles tire as they run out of fuel and build up waste products. Muscle performance can also be affected by a 27_____ called “central fatigue,” in which an imbalance in the body’s chemical messengers prevents the central nervous system from directing muscle movements 28______. It was not known, however, whether central fatigue might also affect motor systems not directly 29_____ in the exercise itself—such as those that move the eyes. To find out, researchers gave 11 volunteers a carbohydrate 30______ either with a moderate dose of caffeine—which is known to stimulate the central nervous system—or as a placebo without, during 3 hours of 31_____. After exercising, the scientists tested the cyclists with eye-tracking cameras to see how well their brains could still 32_____ their visual system. The team found that exercise reduced the speed of rapid eye movements by about 8%, 33_____ their ability to capture new visual information. The caffeine—the equivalent of two strong cups of coffee—was 34_____ to counteract this effect, with some cyclists even displaying 35_____ eye movement speeds, the team reports today in Scientific Reports. So it might be a good idea to get someone else to drive you home after that marathon.

C control D cycling E effectively F increased G involved
I phenomenon J preventing M solution N sufficient O vigorous(不全)

重點單詞   查看全部解釋    
identified

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adj. 被識別的;經(jīng)鑒定的;被認同者 v. 鑒定(id

 
fatigue [fə'ti:g]

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n. 疲乏,疲勞,累活
adj. 疲勞的

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caffeine ['kæfi:n]

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n. 咖啡因

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capture ['kæptʃə]

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vt. 捕獲,俘獲,奪取,占領(lǐng),迷住,(用照片等)留存<

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performance [pə'fɔ:məns]

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n. 表演,表現(xiàn); 履行,實行
n. 性能,本

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dose [dəus]

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n. 劑量,一劑,一服
vt. 給 ... 服

 
placebo [plə'si:bəu]

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n. 安慰劑,安慰話

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affected [ə'fektid]

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adj. 受影響的,受感動的,受疾病侵襲的 adj. 做

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exhaust [ig'zɔ:st]

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v. 耗盡,使衰竭,使筋疲力盡
n. 排氣裝置

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tire ['taiə]

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n. 輪胎,金屬圈
v. 使疲倦,厭煩

 
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