【正确答案】 B

【答案解析】[解析] 26-35 Science can’t explain the power of pets， but many studies have shown that the company of pets can help lower blood pressure and raise chances of recovering from a heart attack，reduce loneliness and spread all-round good cheer． Any owner will tell you how much joy a pet brings．For some，an animal provides more com fort than a husband/wife．A 2002 study by Karen Allen of the State University of New York meas ured stress levels and blood pressure in people half of them pet owners—while they performed 5 minutes of mental calculation or held a hand in ice water．Subjects completed the tasks alone， with a husband/wife，a close friend or with a pet． People with pets did it best．Those tested with their animal friends had smaller change in blood pressure and returned most quickly to baseline heart rates．With pets in the room，people also made fewer math mistakes than when doing in front of other companions．It seems people feel more relaxed around pets，says Allen，who thinks it may be because pets don’t judge． 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 Hospi tal spent a year studying 36 fat people and their equally fat dogs on diet-and-exercise programs；a separate group of 56 people without pets were put 26．What does the passage mainly discuss? [解析] 选项概括性强表明，本题可能考查短文的主旨。 短文开头部分提到，研究显示宠物的陪伴能帮助减低血压、提高心脏病康复几率、减少孤独感，接下来详细介绍了相关的研究，由此可知，短文主要介绍的是宠物给主人带来的好处，故答案为 [B]。 [点睛] 短文的主题或主旨一般会在开头部分提到，因此听音时应当重点留意该部分。

【正确答案】 A

【答案解析】[解析] When does a person with heart disease have a better chance of getting well? [解析] 选项均以If he开头以及其中的less stress of work，is taken care of等表明，本题可能考查某个有某种疾病的人康复的条件。短文中提到，the company of pets can help… raise chances of recovering from a heart attack(宠物的陪伴有助于……提高心脏病恢复的几率)，也就是说，如果一个心脏病患者有宠物陪伴，恢复的几率更高，故答案为[A]。 [点睛] but转折处一般都是听音的重点。[A]中a pet companion 与短文中的the company ofpets对应。

【正确答案】 D

【答案解析】[解析] According to Allen，why did people do better with pets around when doing stressful tasks? [解析] 选项中的have lower blood pressure，more pa tient，less nervous等表明，本题可能考查某种东西(极可能是 宠物)给They带来的好处。短文中介绍了做心算实验(mental calculation)时，有宠物陪伴的人犯的错误更少，接着Allen解释原因，提到It seems people feel more relaxed around pets(似 乎是有宠物在旁边人们更放松)，故答案为[D]。 [点睛] 问题中的stressful tasks与短文中提到的mental calcula tion对应，[D]They are less nervous则是对people feel more re laxed的同义转述。

【正确答案】 A

【答案解析】[解析] What do researchers at Northwestern Memorial Hospital 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 own ers didn’t lose any more weight than those with out dogs but，say researchers，got more exercise overall—mostly with their dogs—and：found it worth doing． mention in the passage? [解析] 选[A]。选项中的People with dogs，Dogs，People without dogs，more exercise，lost the same weight等表明，本题可能考查养狗和不养狗者的运动和体重情况。由短文中提到的Dog own ers…say researchers，got more exercise overall(研究者们说，总体而言养狗者……得到了更多锻炼)可知，答案为[A]，其中的 People with dogs与Dog owners同义。