For as long as humans have raised crops as a source of food and other products, insects have damaged them. Between 1870 and 1880, locusts ate millions of dollars' worth of crops in the Mississippi Val
Federal Reserve System, central banking system of the United States, popularly called the Fed. A central bank serves as the banker to both the banking community and the government; it also issues the
Art is considered by many people to be little more than a decorative means of giving pleasure. This is not always the case, however; at times, art may be seen to have a purely functional side as well.
You stare at waterfall for a minute or two, and then shift your gaze to its surroundings. What you now see appears to drift upward.These optical illusions occur because the brain is constantly matchin
You stare at waterfall for a minute or two, and then shift your gaze to its surroundings. What you now see appears to drift upward.These optical illusions occur because the brain is constantly matchin
The word religion is derived from the Latin noun religio, which denotes both earnest observance of ritual obligations and an inward spirit of reverence. In modern usage, religion covers a wide spectru
【今日阅读推荐】本篇阅读材料千禧一代远离小汽车”选自《The Daily Beast》（原文标题：Millennials move away from car ownership 2013.5.14）。Cars, long a status sym
【今日阅读推荐】本篇阅读材料工作时学习一切可能吗？”选自《Time》（原文标题：Can You Learn Everything On The Job”? 2012.6.28）。Earlier this month, offic
【今日阅读推荐】本篇阅读材料为什么太长的课程没效率”选自《Time》（原文标题：Why Long Lectures Are Ineffective 2012.10.2）。Each school day, millions of studen
【今日阅读推荐】本篇阅读材料如何提高学习的毅力”选自《Time》（原文标题：Is There Really a ‘Boy Crisis’? 2013.3.21）。American boys are in crisis.&rd