The time he has devoted in the past ten years ________ the disabled is now considered ________ of great value.

There seems never to have been a civilization without toys, but when and how they developed is unknown． They probably came about just to give children something to do．
　　In the ancient world, as is today, most boys played with some kinds of toys and most girls with another． In societies where social roles are rigidly determined, boys pattern their play after the activities of their fathers and girls after the tasks of their mothers． This is true because boys and girls are being prepared, even in play, to step into the roles and responsibilities of the adult world．
　　What is remarkable about the history of toys is not so much how they changed over the centuries but how much they have remained the same． The changes have been mostly in terms of craftsmanship, mechanics, and technology． It is the universality of toys with regard to their development in all parts of the world and their persistence to the present that is amazing．In Egypt, the Americas, China, Japan and among the Arctic （北极的） peoples, generally the same kinds of toys appeared． Variations depended on local customs and ways of life because toys imitate their surroundings． Nearly every civilization had dolls, little weapons, toy soldiers, tiny animals and vehicles．
Because toys can be generally regarded as a kind of art form, they have not been subject to technological leaps that characterize inventions for adult use． The progress from the wheel to the oxcart to the automobile is a direct line of ascent （进步）． The progress from a rattle used by a baby in 3,000 BC to one used by an infant today, however, is not characterized by inventiveness． Each rattle is the product of the artistic tastes of the times and subject to the limitations of available materials．
【小题1】Which is a major factor leading to the different variations of toys?

Much ________ many westerners’ horror, the Chinese seem to eat almost every part of every animal.

A. from　　　B. with　　　C. of　　　D. to

You’d better spend your time just on the things you find ______.

　　Why doesn’t the unemployment rate ever reach zero? Economists, who generally believe that supply tends to meet demand, have long thought about this question. Even in good times, i.e. not now, there are people who can’t find work. And even in bad times, i.e. now, there are job openings. With over 14 million people out of work and looking for a job, you would think every available job would be filled. But that’s not the case. Not now and not ever.
　　On Monday, the Nobel Prize committee awarded the prize for economics to the three scholars who have done the most to explain this phenomenon. Two of the winners are Americans, Peter Diamond of MIT and Dale Mortensen of Northwestern. The third winner is Christopher Pissarides, who teaches at the London School of Economics and was born on Cyprus.
　　Like most of economics, what they have found about why the jobless and ready-employers don’t find each other seems obvious. You have to find out there is job opening you are interested in. Employers need to get resumes （简历）. It takes a while for both employers and employees to make the decision that this is what they want. And these guys came up with a frame-work to study the problem of why people stay unemployed longer than they should and what can be done about it.
　　So what would today’s Nobel Prize winners do to solve the current problem of the unemployed? And does the awarding of the prize contribute to the politicians’ lowering joblessness?
　　Speaking from his north London home, Pissarides told The Associated Press the announcement came as “a complete surprise” though his work had already helped shape thinking on both sides of the Atlantic.
　　For example, the New Deal for Young People, a British government policy aimed at getting 18-24-year-olds back on the job market after long periods of unemployment, “is very much based on our work,” he said.
　　“One of the key things we found is that it is important to make sure that people do not stay unemployed too long so they don’t lose their feel for the labor force,” Pissarides told reporters in London. “The ways of dealing with this need not be expensive training – it could be as simple as providing work experience.”
【小题1】According to the writer, which is true about finding jobs?