英语考研

A breakthrough (突破) in the provision of energy from the sun for the European Economic Community (EEC) could be brought forward by up to two decades, if a modest increase could be provided in the E...

Just seven years ago, the Jarvik-7 artificial heart was being cheered as the model of human creativeness. The sight of Barney Clark-alive and conscious after trading his diseased heart for a metal-and...

A raped means of long-distance transportation became a necessity for the United States as settlement (新拓居地) spread ever farther westward. The early trains were impractical curiosities, and for...

With fifteen years Britain and other nations should be well on with the building of huge industrial complexes for the recycling of waste. The word rubbish could lose its meaning because everything whi...

By 1970, according to a World Wildlife Fund report, only about 4,500 tigers survived throughout the world-half of them in India. Mr. Foresters, who followed and counted tiger footprints, estimated tha...

In only two decades Asian Americans have become the fastest-growing U.S. minority (少数民族). As their children began moving up through the nation’s schools, it became clear that a new class...

Like fine food, good writing is something we approach with pleasure and enjoy from the first taste to the last. And good writers, good cooks, do not suddenly appear full-blown. Quite the contrary, jus...

Nursing at Beth Israel Hospital produces the best patient care possible. If we are to solve the nursing shortage (不足), hospital administration and doctors everywhere would do well to follow Beth I...

For some time past it has been widely accepted that babies-and other creatures-learn to do things because certain acts lead to rewards”; and there is no reason to doubt that this is true. But it...

When a consumer finds that an item she or he bought is faulty or in some way does not live up to the manufacturer’s claim for it, the first step is to present the warranty (保单), or any other...