英语考研

Resources can be said to be scarce both in an absolute and in a11 sense: the surface of the Earth is limited,12absolute scarcity, but the scarcity that concerns economists is the relative scarcity of ...

Tight-lipped elders used to say, "It's not what you want in this world, but what you get. " Psychology teaches that you do get what you want if you know what you want and want the right thin...

Does a bee know what is going on in its mind when it navigates its way to 11 food sources and back to the hive, using polarized sunlight and the tiny magnet it carries as a navigational aid? Or is the...

Adam Smith, writing in the 1770s, was the first person to see the importance of the division of labor and to explain part of its'advantages. He gives as an example the process by which pins were made ...

Friends play an important part in our lives, and although we may take the friendship for granted, we often don't clearly understand how we make friends. While we get on well with a number of people, w...

Now let us look at how we read. When we read a printed text, our eyes move across a page in short, jerky movement. We recognize words usually when our eyes are still when they fixate. Each time they f...

Until the 1980s, the American homeless population comprised mainly older males. Today homelessness strikes much younger part of society. In fact, a 25-city survey by the U. S. Conference of Mayors in ...

School reform proposals in the first half of the 1980s brought hope that at least the country would wake up to the need for serious improvement in our public schools. At the same time, there was skept...

Stamp-collecting, once exclusively the hobby of small boys and an all-consuming passion for the older enthusiast, has now become the target of financial speculators. Stamps are both portable and negot...

The old idea that talented children "burn themselves out" in the early years,and therefore, are 11 to failure and at worst, mental illness is probable. As a matter of fact, the outstanding t...