We can make mistakes at any age．Some mistakes we make are about money．But most mistakes are about people．“Did Jerry really care when I broke up with Helen？”“When I got that great job，did Jim really feel good about it，as a friend？Or did he envy my luck？”When we look

The intelligence（智力）tests used often today are based on the work of a Frenchman，Alfred Binet．In 1905，Binet was asked by the French Ministry of Education to develop a way to judge those children in French schools who were too“mentally deficient（缺乏的）”to benefit from ordinary schooling and who needed special education．The tests had to tell

Isaac Newton was born in England in 1642. At school he did not work very hard until he decided to do better than a big boy who had kicked him. At the age of 19, Newton went to Cambridge University where he began to study mathematics and science. He started to ma

One day Billy walked down the street to post a letter for his mother. He did not see a letter box on the street. But he saw a basket that had a sign on it. The sign said: PUT LITTER IN THIS BASKET.
"I can read, "thought Billy,

Judy Krecek has been teaching for twenty-four years. She teaches social studies, language arts, computer skills, and other disciplines. Students in her class read and write, as all students do. Like all elementary school students, they also play pranks

1908年6月30日在西伯利亚中部的Tunguska高原发生了大爆炸，究竟是什么原因导致了这次大爆炸？
At night, you can sometimes see a meteor① if there are no bright lights nearby. We call it a“falling star.” Most meteors die as they enter the earth's atmosphere. The friction

A new hot line aimed at helping aging women will open on Monday by the Maple Women's Psychological Counseling Centre (心理咨询中心) in Beijing.
    By dialing 010-64073800, people can get free consulting service on such problems as health-care, marriage, family, social welfare and psychological pressure.
 

Three different kinds of engines have been used to move people and goods from one place to another. The first of these was the steam engine which was used for many years to move ships and trains. Then the internal combustion(燃烧) engine was invented. This is still used in many motor vehicles and in some aeroplanes. The diesel kind of inte

人出名了是好事还是坏事呢？文章的结尾句对此作出了明确的回答。
Bruce Willis feels that too much importance is attached to what's written in magazine articles, since most of it is untrue anyway. He firmly believes he has a right to protect himself

Piccard和Jones乘坐热气球飞行一路顺利吗？他们途中都遇到了哪些困难呢？他们最后成功了吗？
The Breitling attempt didn't get off to a great start. On the day of the launch, March 1st, the winds at the launch site at Chateau D'Oex were very high, causin

George Spilich at Washington College in Chestertown, Maryland, decided to find out whether, as many smokers say, smoking helps them to “think and fix their attention on their work". Spilich put the non-smokers, active smokers and smokers deprived(被剥夺) of cigarettes through a series of tests.
    In the first test, each

Governors, lawyers and business leaders have to deal with scientists, and every educated person finds his views influenced by science. Yet our science teaching to non-scientists, in school and college, has built up mistaken ideas, dislikes, and the common boast(夸夸其谈). “I never did understand science.” Even those students who arrive at co

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Tristan da Cunha, a 38-square-mile island, is the farthest inhabited island in the world, according to the Guinness Book of Records. It is 1,510 miles southwest of its nearest neighbor, St. Helena, and 1,950 mil

Babies love chocolate—and sometimes they also eat the paper around it．My cat enjoys a meal of good，thick paper；old letters，for example．She doesn't like newspapers very much．
    Of course，the best paper comes from wood．Wood comes from trees，and trees are plants．Vegetables and fruit are plants too，and we eat a lot of th