Animals' Compasses Researchers have found that migrating animals use a variety of inner compasses to help them navigate. Some steer by the position of the Sun. Others navigate by the stars. Some use t
Raising Oysters In the past oysters were raised in much the same way as dirt farmers raised tomatoes - by transplanting them. First, farmers selected the oyster bed, cleared the bottom of old shells a
Please let me have a little world,please my dear husband.Be so generous as to Let me have a little of my own.If you find me scrawling on a piece of newspaper.please don't piple over my shoulders.It ma
Human Life a Poem I think that, from a biological standpoint, human life almost reads like a poem. It has its own rhythm and beat, its internal cycles of growth and decay. It begins with innocent chil
Plankton Scattered through the seas of the world are billions of tons of small plants and animals called plankton. Most of these plants and animals are too small for the human eye to see. They drift a
Movie Music Accustomed though we are to speaking of the films made before 1927 as "silent", the film has never been, in the full sense of the word, silent.From the very beginning, music was regarded a
Solitude I find it wholesome to be alone the greater part of the time. To be in company, even with the best, is soon wearisome and dissipating. I love to be alone. I never found the companion that was
新东方优美背诵短文50篇 Unit47:Folk Culture 47 Folk Cultures A folk culture is a small isolated, cohesive, conservative, nearly self-sufficient group that is homogeneous in custom and race with a strong family o
The traditional holidays in our house when I was a child were spent timing elaborate meals around football games. My father tried to make pleasant chitchat and eat as much as he could during halftime.
A Curious Decision A poor chimney-sweeper, who had not enough money to buy a meal, stopped one hot summer day at noon before an eating-house, and remained regaling his nose with the smell of the victu
VTo be or not to be Outside the Bible, these six words are the most famous in all the literature of the world. They were spoken by Hamlet when he was thinking aloud, and they are the most famous words
The Early Settlers in North America The North American frontier changed some of the characteristics of the pioneers of the 1750's and intensified others.They were, as a group, semiliterate, proud, and
Coal-fired Power Plants The invention of the incandescent light bulb by Thomas A. Edison in 1879 created a demand for a cheap, readily available fuel with which to generate large amounts of electric p
The Source of Energy A summary of the physical and chemical nature of life must begin, not on the Earth, but in the Sun; in fact, at the Sun's very center. It is here that is to be found the source of
However mean your life is,meet it and live it ;do not shun it and call it hard names.It is not so bad as you are.It looks poorest when you are richest.The fault-finder will find faults in paradise.Lov
Bacteria Bacteria are extremely small living things. While we measure our own sizes in inches or centimeters, bacterial size is measured in microns. One micron is a thousandth of a millimeter: a pinhe
A little Girl Sitting on a grassy grave, beneath one of the windows of the church, was a little girl.(1) With her head bent back(2) she was gazing up at the sky and singing, while one of her little ha
Scientific Theories In science, a theory is a reasonable explanation of observed events that are related. A theory often involves an imaginary model that helps scientists picture the way an observed e
The History of Chemistry Chemistry did not emerge as a science until after the scientific revolution in the seventeenth century and then only rather slowly and laboriously. But chemical knowdedge is a
