英语四级 2017年6月·第2套 Part III Section A 完形填空（选词填空）试卷排版
英语四级2017年6月·第2套 Part III Section A 完形填空（选词填空）：共 10 题、占整卷 5%（710 分制折算约 36 分）。本页按真题原卷版式还原该模块卷面（不含解析）；逐题解析在「题目解析」页；本模块真题可免费下载 PDF/Word，入口见上方本题行。
试卷原卷
真题卷第2套(2017-06) • 四级
Part III Section A
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 on Answer 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 stimulate them 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 volunteer cyclists a carbohydrate(碳水化合物的) 30 either with a moderate dose of caffeine(咖啡因), which is known to stimulate the central nervous system, or as a placebo(安慰剂) 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 reverse this effect, with some cyclists even displaying 35 eye movement speeds. So it might be a good idea to get someone else to drive you home after that marathon.
A)cautiously
B)commit
C)control
D)cycling
E)effectively
F)increased
G)involved
H)limited
I)phenomenon
J)preventing
K)sensitive
L)slowing
M)solution
N)sufficient
O)vigorous