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2019年12月英语四级阅读真题及答案 第3套 选词填空

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Millions of people travel by plane every single day. If you're planning on being one of them soon, you might not be looking forward to the __26__ feeling air travel often leaves you with. Besides the airport crowds and stress, travelling at a high altitude has real efects on the body. Although the pressure of the cabin is __27__ to prevent altitude sickness, you could still __28__ sleepiness or a headache. The lower oxygen pressure found in an aircraft cabin is __29__ to that at 6,000-8,000 feet of altitude. A drop in oxygen pressure can cause headaches in certain __30__ To help prevent headaches, drink plenty of water, and avoid alcohol and coffee.

Aiplane food might not really be as tateless as you __31__ thought. The air you breathe in a plane dries out your mouth and nose, which can affect your sense of taste. Perception of sweet and salty foods dropped by almost 30 percent in a simulation of air travel. However, you can make your taste buds active again by drinking water. A dry mouth may __32__ taste sensitivity, but taste is restored by drinking fluids.

Although in-flight infections __33__ in dry environments like airplanes, your risk of getting sick from an airplane is actually low because of the air __34__ used. Unless you 're stting next to someone who is coughing or sneezing, you shouldn't worry too much about getting sick. However, bacteria have been shown to live on cabin surfaces, so wash your hands __35__.

A) adjusted
B) channels
C) equivalent
D) experience
E) filters
F) frequently
G) individuals
H) originally
I) particular
J) primarily
K) reduce
L) renovated
M) smooth
N) thrive
O) unpleasant

重点单词   查看全部解释    
certain ['sə:tn]

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adj. 确定的,必然的,特定的
pron.

 
stress [stres]

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n. 紧张,压力
v. 强调,着重

 
restored [ri'stɔ:d]

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adj. 精力充沛的;精力恢复的 v. 修复(resto

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bacteria [bæk'tiəriə]

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n. (复数)细菌

 
alcohol ['ælkəhɔl]

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n. 酒精,乙醇,酒

 
perception [pə'sepʃən]

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n. 感知,认识,观念

 
affect [ə'fekt]

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vt. 影响,作用,感动

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prevent [pri'vent]

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v. 预防,防止

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pressure ['preʃə]

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n. 压力,压强,压迫
v. 施压

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salty ['sɔ:lti]

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adj. 咸的

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