The once radical notion that birds descended from dinosaurs——or may even be dinosaurs， the only living branch of the family that ruled the earth eons ago——has got stronger and stronger since paleontol
Plowing through the New York Times on a recent Sunday， I read in the Metro Section that infertile couples in the market for smart-kid genes regularly place advertisements in the newspapers of their ow
As you read this， nearly 80，000 Americans are waiting for a new heart， kidney or some other organ that could save their life. Tragically， about 6，000 of them will die this year——nearly twice as many p
It has long been known that the rate of oxidative metabolism (the process that uses oxygen to convert food into energy) in any animal has a profound effect on its living patterns. The high metabolic r
Scientists have known since 1952 that DNA is the basic stuff of heredity. They’ve known its chemical structure since 1953. They know that human DNA acts like a biological computer program some 3 billi
以下小编为考生整理的2014年考研英语阅读理解模拟练习及答案解析，希望对考生们有所帮助，取得2014考研的成功。Scientists have known since 1952 that DNA is the basic stuff of heredity. They’ve known its chemical structure since 1953. They know that human
以下小编为考生整理的2014年考研英语阅读理解模拟练习及答案解析，希望对考生们有所帮助，取得2014考研的成功。There are many reasons why London is an attractive place in which to live and to do international business: the time zone, English, the shops, t
以下小编为考生整理的2014年考研英语阅读理解模拟练习及答案解析，希望对考生们有所帮助，取得2014考研的成功。To date, over 1 billion Barbie dolls have been sold. The average American girl aged between three and 11 owns a staggering ten Barbie dolls, acc
以下小编为考生整理的2014年考研英语阅读理解模拟练习及答案解析，希望对考生们有所帮助，取得2014考研的成功。Education is an absolute imperative in the emerging global knowledge society, so new ways of providing access to education for a much higher per
以下小编为考生整理的2014年考研英语阅读理解模拟练习及答案解析，希望对考生们有所帮助，取得2014考研的成功。Why is English so difficult? It is often thought that the number of words in the English language is a major reason, but this is not the real an