二、阅读理解
1、One way that scientists learn about man is by studying
animals, such as mice and monkeys.科学家理解人类旳一种措施是
研究如老鼠、猴子这样旳动物。The scientists in this laboratory are
电大、各类远程网络教育统考大学英语B、计算机应用基础统考辅导
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experimenting on mice. They are studying the relationship
between diet and health. At this time, over one hundred
experiments are being done in this laboratory.
In one of these experiments, the scientists are studying the
relationship between the amount of food the mice eat and
their health. The mice are in three groups. All three groups are
receiving the same healthy diet. But the amount of food that
each group is receiving is different. The first group is eating one
cup of food each day, the second group is eating two cups,
and the third group of mice is eating three cups.