首页英语词典caffeinecaffeine考试真题

caffeine

英 ['kæfiːn] 美['kæfin]
  • n. [有化][药] 咖啡因;茶精(兴奋剂)

考试真题


Caffeine, a substance found in coffee and some soft drinks, is also a drug.

出自-2015年12月听力原文

The caffeine—the equivalent of two strong cups of coffee, was sufficient to reverse this effect, with some cyclists even displaying increased eye movement speeds.

2017年6月四级真题(第三套)阅读 Section A

To find out, researchers gave 11 volunteer cyclists a carbohydrate solution 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 cycling.

2017年6月四级真题(第三套)阅读 Section A

In West Africa, people have long chewed kola nuts as stimulants, because they contain caffeine that also occurs naturally in tea, coffee, and chocolate.

2017年12月六级真题(第一套)阅读 Section C

So there could be less protein, more sugar and some additives you wouldn't expect, such as caffeine.

2019年12月六级真题(第二套)阅读 Section B