2017年9月公共英语一级英语知识运用模拟题（1）
Imagine the first days in a new time zone. Slow to respond to the 28 , your body clock is confused. You’re sleepy all day, but when it’s time for bed, you can hardly fall asleep. Obviously you are 29 jet lag(时差反应).
Travelers have traditionally fought this 30 with sleeping pills or alcohol. There are actually healthier ways that can work just as 31.
For example, the moment you get on the airplane, start 32 your biological block to the destination’s time. If it’s daytime in your destination, try to stay 33 . Walking around the cabin(客舱) can be of help. When it’s nighttime, try to sleep. In that case, eat before the flight, 34 an empty stomach will prevent you from sleeping. These tips will help you start a new 35of sleep and wakefulness.
28. A.flight B.change C.demand D.climate
29. A.suffering from B.working on C.looking into D.leading to
30. A.danger B.problem C.waste D.fear
31. A.briefly B.slowly C.suddenly D.effectively
32. A.checking B.sending C.adjusting D.stopping
33. A.awake B.alone C.hungry D.calm
34. A.though B.so C.whole D.or
35. A.understanding B.cycle C.research D.trend
答案解析：
28【答案】B
【考点】名词辨析
【解析】根据的首句的关键词new time zone“ 新的时区”和下文的生物钟混乱，可得出“对(时差的)变化反应慢”选B。
29【答案】A
【考点】动词短语辨析
【解析】 由上文的sleepy all day 和hardly fall asleep 可得出这里选suffering from 表示“遭受”。
30【答案】B
【考点】名词辨析
【解析】时差反应(jet lag)是一种问题而不是危险、浪费、和害怕。
31【答案】D
【考点】副词辨析
【解析】由本句healthier ways, work (起作用)得出effectively “有效地”。
32【答案】C
【考点】动词辨析
【解析】由下文讲的方法可以得出adjust“调整”生物钟来适应目的时间。
33【答案】A
【考点】形容词辨析
【解析】由前半句关键词“白天”可得出stay awake“保持清醒”。
34【答案】D
【考点】连词辨析
【解析】根据语义“在上飞机前吃饭，否则空腹会阻止你入睡”。
35【答案】B
【考点】名词辨析
【解析】由上文可得出这些方法能帮助你开始一个新的 cycle “周期”。
【点评】
总体难度：一般
本文为说明文，讲述了如何无面对倒时差的小诀窍。
