雅思英语

The Problem of Scarce ResourcesSection AThe problem of how health-care resources should be allocated or apportioned, so that they are distributed in both the most just and most efficient way, is not a...

Disappearing DeltaAThe fertile land of the Nile delta is being eroded along Egypt’s Mediterranean coast at an astounding rate，in some parts estimated at 100 metres per year.In the past，land scou...

The Impact of Wilderness TourismAThe market for tourism in remote areas is booming as never before. Countries all across the world are actively promoting their ’wilderness’ regions—such as mount...

PLAY IS A SERIOUS BUSINESSDoes play help develop bigger, better brains?Bryant Furlow investigatesAPlaying is a serious business. Children engrossed in a make-believe world, fox cubs play-fighting or k...

Obtaining Linguistic DataAMany procedures are available for obtaining data about a language. They range from a carefully planned, intensive field investigation in a foreign country to a casual introsp...

Nature or Nurture?AA few years ago, in one of the most fascinating and disturbing experiments in behavioural psychology, Stanley Milgram of Yale University tested 40 subjects from all walks of life fo...

Early Childhood EducationNew Zealand’s National Party spokesman on education, Dr Lockwood Smith,recently visited the US and Britain. Here he reports on the findings of his tripand what they could me...

The Return of Artificial IntelligenceIt is becoming acceptable again to talk of computers performinghuman tasks such as problem-solving and pattern-recognitionAAfter years in the wilderness, the term ...

AUSTRALIA’S SPORTINGSUCCESSAThey play hard, they play often, and they play to win. Australian sports teams win more than their fair share of titles, demolishing rivals with seeming ease. How do they...

Adults and children are frequently confronted with statements about the alarming rate of loss of tropical rainforests. For example, one graphic illustration to which children might readily relate is t...