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睡眠的演变(Evolution of sleep)
sleep is very ancient. in the electroencephalographic sense we share it with all the primates and almost all the other mammals and birds: it may exten...
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冰箱的起源(The origin of Refrigerators)
by the mid-nineteenth century, the term "icebox" had entered the american language, but ice was still only beginning to affect the diet of ordinary ...
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肥胖不等于懒惰(Fat equals lazy?)
doctors are guilty of wrongly believing that obese people are simply lazy, research suggests.researchers at yale university said the findings highligh...
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远程办公(Telecommuting)
telecommuting-- substituting the computer for the trip to the job ----has been hailed as a solution to all kinds of problems related to office work.fo...
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分享您的时间(Share Your Time)
share your timea man came home from work late, tired and irritated, to find his 5-year old son waiting for him at the door.“daddy, may i ask you...
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做人要诚实(It Pays to Be Honest)
although honesty is believed to be a virtue, there are still dishonest people in our society. for example, some businessmen sell fake product to their...
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能量的来源(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...
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细菌(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...
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Punctuality(准时)
~ o be or not to be punctual is a habit. we often fail to appreciate the influence of habit in our life. habit is worklng for or against us every minu...
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成人教育(Education of Adults)
in today's society, more and more adults return to the university, sit in the classroom, open the textbook again in order to further their education. ...
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河水污染的感想(river pollution Feelings)
last sunday my father and i went fishing along a river. we found the water so dirty that we could hardly catch fish in it.a lot of factories along the...
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科学家应受到国家的尊重(Honor Scientists as National Heroes)
it is natural that young people love movie stars or popular singers.however, great scientists and inventors also deserve our respect as national heroe...
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生命掌握在你手里(Life is in you hands)
consider… you. in all time before now and in all time to come, there has never been and will never be anyone just like you. you are unique in t...
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变化的好处(The benefits of change)
everything in the universe is in constant change. and everything needs continual improvement if the ever changing and increasing demands of humankind ...
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电子邮件(E-mail)
electronic mail, or e-mail for short, is an entirely new way of communication by means of computers. being fast,inexpensive, highly efficient and conv...
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留学(Studying Abroad)
nowadays many chinese students are interested in studying abroad. they spend much more time, energy and money on the preparation for studying abroad t...
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戏剧的开端(The Beginning of Drama)
there are many theories about the beginning of drama in ancient greece. the on most widely accepted today is based on the assumption that drama evolve...
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郊区化(Suburbanization)
if by "suburb" is meant an urban margin that grows more rapidly than its already developed interior, the process of suburbanization began during the e...
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食物改变习惯(food Changing habits)
nowadays, wherever we turn our gaze, we can see different types of food that are easier to prepare. for instance, we can buy frozen foods in a superma...
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考研英语作文范文选
考研英语作文范文选1、opportunity and success opportunities don't come often. they come every once in a while. very often, they come quietly and go by ...
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第一日(The first day)
it might be summer or winter for aught i can say.so unrecorded did it slip away,so blind was i to see and foresee,so dull to mark the budding of my tr...
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打电话(A Telephone Call)
please, god, let him telephone me now. dear god, let him call me now. i won't ask anything else of you, truly i won't. it isn't very much to ask. it w...
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最美丽的心(The Most Beautiful Heart)
one day a young man was standing in the middle of the town proclaiming that he had the most beautiful heart in the whole valley. a large crowd gathere...
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在中国妇女平等(Womens Equality in China)
most people, even women themselves, believe that women in china have achieved equality. they think women now "have held up half the sky." they can tak...
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避免被误解(Avoid Misunderstanding)
"why do they keep misunderstanding me?" we often hear people complain. misunderstanding seems to be one of the most disturbing issues in interpersonal...
