填空题 Today, many people are starving to death. There is a (47) of food and the available food is too expensive for hungry people to buy. Therefore, they go without food or each day has only one or two small meals lacking the (48) vitamins to maintain good health.
Recently, a man who wanted to understand the conditions of such people (49) an experiment. He only ate one meal a day for a month but continued to work as he (50) did.
During the first five days he was hungry at his (51) meal times, but after he had drunk a glass of water, his hunger went away. In the evening, when he ate his one meal, he ate quickly and (52) a large amount. During the next few days, although he was not hungry during the day, he quickly noticed every food stall, and the (53) of food caught his attention. During the third and fourth weeks, he had hunger pains, and he knew that he would have hardly enough energy to work.
This experience (54) his attitude about some things. Having a cup of tea was not just a pastime, it also gave him strength. He more (55) noticed overweight people and people who threw away leftover food. He realized the importance of food for the very hungry person. He could no longer easily pass (56) a hungry beggar on the street. But most important, he could now sympathize in a small way with the starving people of the world.

• A) reluctantlyI) normally
• B) shortageJ) by
• C) consumed K) crush
• D) associated L) changed
• E) smell M) regular
• F) harmful N) necessary
• G) conducted O) upon
• H) frequently