A : Excuse me/ I bought this radio here, and it doesn't work.

B : Do you have your receipt?

A : No. I lost it. Can I exchange the radio/ for another one?

B : Without your receipt, it's hard.

A : Believe me, I bought it this morning.

B : Then do you have any identification?

A : Yes, I have a driver's license, and a credit card.

B : O.K ________ All you have to do/ is /(to) go to the manager's

    office, Right over there.

Mary : Our student from Seoul/ arrived/ on Monday.

Bill : What's her name?

Mary : Soon-hee.

Bill : That's a pretty name!________

Mary : She's really nice. I'm sure /we'll get along well. We seem to have a lot/ in            common.

Bill : How do you know that /already? What does she like doing?

Mary : Well, she likes dancing, and so do I. And we both

       like listening to the same kind of music.

Bill : Oh, that's good. I can't wait to meet her.

Wildlife officials/ would introduce five bears/ to the Bitterroot Mountains /each year /for five consecutive years, starting /in 2002. They anticipate /that the grizzly population, /with its slow reproductive cycle, would take more than 100 years /to reach the projected goal of about 300 bears.

The Hawthorne experiment/ was conducted/ in the late 1920s and early 1930s. The management of Western Electric's Hawthorne plant, located /near Chicago, wanted to find out /if environmental factors /such as lightning, could affect worker' productivity and morale(주제문). A team of social scientists/ experimented /with a small group of  employees /who were set apart /from their coworkers. The environmental conditions of this group's work area/ were controlled, and the subjects themselves/ were closely observed. To the great surprise of the researchers, the productivity of these workers/ increased /in response to any change /in their environmental conditions. The rate of work /increased/ even when the change (such as sharp decrease/ in the level of light/ in the workplace) seemed unlikely to have such an effect. It was concluded /that the presence of the observers /had caused the workers / in the experimental group/ to feel special. As a result, the employees /came to know and trust one another, and they developed a strong belief /in the importance of their job The researchers believed /that this, not the changes /in the work environment, accounted for the increased productivity.

가 : In one study, biometeorologists /suggested a statistical correlation/ between bone density and temperature(요지문). Some Hungarian scientists/ found an increase/ in dental periostitis (gum inflammation) with the passage of a warm front. According to some Swedish doctors, migraine headaches /increase /three days after a change in barometric pressure and temperature.

나: In Europe, where biometeorology began /and had flourished, it's assumed /that ordinary weather/ affects ordinary human beings /in myriad ways.(주제문)

다. Meanwhile, researchers in Japan/ noticed an increase/ in asthma attacks /when the wind changes direction.

  The economic struggle/ in America /continues; but it seems apparent/ that the  struggle is no longer /between the giant segments of our society, but within them. Battles/ for power and control/ are being fought /within some of the large corporations, enlivened/ by war/ in which the big prizes /are stockholder's votes or proxies. Similarly,  struggles for power/ are taking place /within the large labor organizations. In each case /public opinion/ seems to be playing an increasingly important part, judging /by the dramatic efforts /being made /to inform the people /about the partisan positions. And so long as the battleground/ involves public favor, moderation seem neither implausible nor unnatural.(요지문)

   Then /there was the dark side. Amid the glories of the century /lurked some of history's worst horrors: Stalin's collectivization, Hitler's Holocaust, Mao's Cultural

Revolution, Pol Pot's killing fields, I야 Amin's rampages. We try to personalize the blame, as if it were the fault of just a few madmen, but in fact/ it was whole societies, including advanced ones /like Germany, that embraced or tolerated madness. What they had in common/ was /that they sought totalitarian solutions /rather than freedom. Theologians /have to answer the question /of why God allows evil. Rationalists /have one almost as difficult: Why doesn't progress/ make civilizations /more civilized? 

For many years, alligator skin/ was popular/ in the United States/ for making fashionable leather shoes and purses . From 1870 to 1965/ at least ten million alligators/ were killed /in the United States/ for leather. Then, in 1967, the government/ made laws/ against hunting alligators. After that/ the alligator population/ began to grow again . Now/ there are _______________________.

  I do not mean to suggest /that we should seek to eliminate fear altogether/ from human life. Were this humanly possible /it would not be practically____________.

Fear is the elemental alarm system /of the human organism/ which warns of approaching dangers /and without which /man could not have survived/ in either the primitive or modern world. Fear, moreover, is a powerfully creative force.

   In 1966, Edward Hall/ compared /the nature of culture/ to an iceberg.

You can see part of an iceberg, but most of the iceberg/ is below the water/ and cannot be seen.            ,  most aspects of culture/ are not visible. These invisible aspects/ are things /that we are familiar with /but don't usually think about

or question.