A hundred years ago it was assumed and scientifically “proved” by economists that the laws of society made it necessary to have a vast army of poor and jobless people in order to keep the economy
Recent research has claimed that an excess of positive ions in the air can have an ill effect on people‘s physical or psychological health. What are positive ions? Well， the air is full of ions
The newborn can see the difference between various shapes and patterns from birth. He prefers patterns to dull or bright solid colors and looks longer at stripes and angles than at circular patterns.
The process of perceiving others is rarely translated (to ourselves or others) into cold, objective terms. “She was 5 feet 8 inches tall, had fair hair, and wore a colored skirt. “ More often, we
As the 11 of life continues to increase, we are fast losing the art of relaxation. Once you are in habit of rushing through life, being on the go from morning till night, it is hard to slow down. But
In the early days of nuclear power, the United States make money on it. But today opponents (反对者 ) have so complicated its development that no nuclear plants have been ordered or built here in 1
Water problems in the future will become more intense and more complex. Our increasing population will tremendously increase urban wastes, primarily sewage. On the other hand, increasing demands for w
There is a popular belief among parents that schools are no longer interested inspelling .No school I have taught in has ever _____ spelling or considered it unimportantas a basic skill. There are, ho
Paper--More than Meets the EyeA) We are surrounded by so much paper and card that it is easy to forget just how complex it is. There are many varieties and grades of paper materials， and whilst it i
How to Make Attractive and Effective PowerPoint PresentationsA)Microsoft PowerPoint has dramatically changed the way in which academic and business presentations are made. This article outlines few ti