英语考研

Social customs and ways of behaving change. Things which were considered impolite many years ago are now 11 . Just a few years ago, it was 12 impolite behavior for a man to smoke on the street. No man...

To understand why someone becomes an optimist or a pessimist, it helps to understand what distinguishes them. Say you crash your car. Do you expect good things to happen after the accident—an ea...

In the last two hundred years there have been great changes in the method of production of goods. This is now also true of the building industry; for mechanization has been introduced. System building...

Nearly everyone agrees that money doesn't buy as much as it used to, no matter where you want to spend it. This is certainly true of the paper money that passes so quickly through one's hands. Inflati...

According to the latest research in the' United States of America, men and women talk such different languages that it is like people from two different cultures trying to communicate. Professor Debor...

Growth of trade will depend greatly on availability of energy sources. There may still be a trillion barrels of recoverable oil in the Middle East. But the oil crisis of 1974 has 11 to renewed interes...

For as long as humans have raised crops as a source of food and other products, insects have damaged them. Between 1870 and 1880, locusts ate millions of dollars' worth of crops in the Mississippi Val...

Every day 25 million U. S. children ride school buses. The safety record for these buses is much better than for passenger cars; but nevertheless, about 10 children are killed each year riding on larg...

Like most parents, geologist Brain Atwater worries about his daughter's safety. But these days, he has an unusual concern; The public school she 11 in Seattle has unreinforced brick walls, a 12 being ...

What do we think with? Only the brain? Hardly. The brain is like a telephone exchange. It is the switchboard, but not the whole system. Its function is to receive incoming signals, make proper connect...