大学四六级英语大全

15/200Newdays,a standard for measuring power has changed.These changes foretell a new standard for measuring power.No longer will a nation's polit...

18/200Many people believe the glare from snow causes snowblindnenss. Yet, dark glasses or not , they find themselves suffering from headaches and wate...

On Thursday afternoon Mrs. Carke, dressed for going out, took her handbag with her money and her key in it, pulled the door behind her to lock it and ...

Water problems in the future will become nore intense and more complex. Our increasing population will tremendously increase urban wastes,primarily se...

One of the qualities that most people admire in others is the willingness to admit one's mistakes. It is extremely hard sometimes to say a simple ...

Flying over a desert area in an airplane, two scientists looked down with trained eyes at trees and bushes. After an hour's flight one of the scie...

In the United States, it is not customary to telephone somenone very early in the morning. If you telephone him early in the day, while he is shaving ...

Liberia, the oldest independent Negro state in West A frica, has been struggling for survial ever since its foundation in 1822.Progress has been hampe...

The accuracy of cientific observations and calculations is always at the mercy of the scientist's timekeeping methods. For this reason,scientists ...

25/200Kite flying is the sport of sending up into the air,by means of the wind , a light frame covered with paper,plastic or cloth. The frame can be o...