A study reported last fall suggests that having a pet dog not only raises your spirits but may also have an effect on your eating habits. Researchers at Northwestern Memorial Hospital spent a year studying 36 fat people and their equally fat dogs on diet­and­exercise programs; a separate group of 56 people without pets were put on a diet program. On average, people lost about 11 pounds, or 5% of their body weight. Their dogs did even better, losing an average of 12 pounds, more than 15% of their body weight. Dog owners didn’t lose any more weight than those without dogs but, say researchers, got more exercise overall—mostly with their dogs—and found it worth doing.

　　1．We learn from the text that a person with heart disease has a better chance of getting well

　　if________.

　　A．he has a pet companionB．he has less stress of work

　　C．he often does mental arithmeticD．he is taken care of by his family

　　解析：事实细节题。第一段说，很多研究表明，有宠物陪伴能提高心脏病恢复的几率。由此可知A项正确。

　　答案：A

　　2．According to Allen, why did the people do better with pets around when facing stressful tasks?

　　A．They have lower blood pressure.B．They become more patient.

　　C．They are less nervous.D．They are in higher spirits.

　　解析：事实细节题。第二段最后一句说，“艾伦说，有宠物陪伴的时候，人们会觉得更放松，这是因为宠物不会对其主人进行任何评价”，由此判断C项正确，因为有宠物相伴的时候，人们就会觉得更放松。

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