2. 外语
  3. Today many people are starving to death.【C1】______a shortage of food and the【C2】______food is too expensive for hungry people to

Today many people are starving to death.【C1】______a shortage of food and the【C2】______food is too expensive for hungry people to

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问题     Today many people are starving to death.【C1】______a shortage of food and the【C2】______food is too expensive for hungry people to buy. Therefore, they【C3】______food, or each day have only one or two small meals lacking the necessary vitamins to maintain good health.
    Recently,  a  man  who  wanted  to understand the【C4】______of  such  people conducted an experiment. He only ate one meal a day【C5】______a month but continued to work【C6】______he normally did. During the first five days he was hungry at his【C7】______meal times, but after he had drunk a glass of water his hunger went away. In the evening, when he ate his【C8】______meal, he ate quickly and【C9】______a large amount. During the next few days,【C10】______he was not hungry during the day, he quickly noticed every food shop, and the smell of food【C11】______his attention. During the third and fourth【C12】______, he had hungry pains and lacked physical strength. He【C13】______his one meal and ate it very slowly,【C14】______every bite. Without it, he knew he would have【C15】______enough energy to work. This experiment【C16】______his attitude about some things.  Having a cup of tea was not【C17】______a pastime,  it also【C18】______him strength.    He  more  frequently  noticed overweight people and people who threw away leftover food. He realized the importance of food for the very hungry person. He could less【C19】______pass by a hungry beggar on the street. But most important, he could now sympathize in a small way【C20】______the starving people of the world.
【C16】
选项 A、will change
B、has changed
C、changed
D、had changed
答案C
解析 本题测试时态用法。上下文用过去时叙述，因此选[C] changed表示“这项试验改变了试验者的态度”，不可用过去完成时had changed，因为上下文无参照时间。
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大学英语四级

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