C. a friend in need is a friend indeed

　　D. people accompanied by friends remain optimistic in the face of difficulty

　　【解析】选D。推理判断题。倒数第二段中“The students who stood with friends gave lower estimates of the steepness of the hill. ”表明与朋友在一起的学生估计出来的坡度更小, 这意味着他们面对困难能保持相对乐观的心态。

　　4. In Paragraph 2 the author aims to tell us　.

　　A. friendship has a strong physical effect on people’s health

　　B. we cannot be too careful when making friends

　　C. older people are likely to have fewer friends

　　D. 60 percent of the people without friends will become fat when they get old

　　【解析】选A。段落大意题。根据本段开头(主题句)可知答案。而且主题句后的三个研究结论都与“友谊影响身体健康”有关。

　　B

　　It takes more than just practice to become an Olympian. Gold medal performances require some serious nutrition. Have you ever wondered what these successful athletes eat to stay in peak shape?

　　Keri Glassman, a registered dietitian and founder of Nutritious Life Meals, appeared on“Good Morning America”today to give you a glimpse into the diets ofsome top athletes. Some of their meals could surprise you.

　　Crazy Calorie Count

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