[10-20 18:10:12] 来源：http://www.67xuexi.com 高二英语 阅读：85663次
A.they look like young cuckoos
B.they have claws on the wings
C.they eat a lot like a cow
D.they live on river banks
41.Why do hoatzins collect together in smaller groups when the rainy season comes?
A.To find more food.
B.To protect themselves better.
C.To keep themselves warm.
D.To produce their young.
D
Science can't explain the power of pets, but many studies have shown that the company of pets can help lower blood pressure (血压) and raise chances of recovering from a heart attack, reduce loneliness and spread all-round good cheer.
Any owner will tall you how much joy a pet brings. For some, an animal provides more comfort than a husband/wife. A 2002 study by Karen Allen of the State University of New York measured stress (紧张) levels and blood pressure in people - half of them pet owners –while they performed 5 minutes of mental arithmetic (算术) 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 released (放松)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 Northwesterm Memorial Hospital spent a year studying 36 fat people and were put on a diet-and-exercise programs; a separate group of 56 fat 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 then 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.
42.What does the text mainly discuss?
A.What pets bring to their owners
B.How pets help people calm down
C.people’s opinions of keeping pets
D.Pet’s value in medical research
43.We learn from the text that a person with heart disease has a better chance of getting well if ____________
A.he has a pet companion
B.he has less stress of work
C.he often dose mental arithmetic
D.he is taken care of by his family
44.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.
45.The research mentioned in the last paragraph reports that
A.people with dogs did more exercise
B.dogs lost the same weight as people did
C.dogs liked exercise much more than people did
D.people without dogs found the program unhelpful
E
There were smiling children all the way. Charily they knew at what time the train passed their homes and they made it their business to stand along the railway, wave to complete strangers and cheer them up as they rushed towards Penang. Often whole families stood outside their homes and waved and smiled as if those on the trains were their favorite relatives. This is the simple village people of Malaysia. I was moved.
I had always traveled to Malaysia by plane or car, so this was the first time I was on a train. I did not particularly relish the long train journey and had brought along a dozen magazines to read and reread. I looked about the train. There was not one familiar face. I sighed and sat down to read my Economics.
It was not long before the train was across the Causeway and in Malaysia. Johore Baru was just another city like Singapore, so I was tired of looking at the crowds of people as they hurried past. As we went beyond the city, I watched the straight rows of rubber trees and miles and miles of green. Then the first village came into sight, Immediately I came alive; I decided to wave hack.
From then on my journey became interesting. I threw my magazines into the waste basket and decided to join in Malaysian life. Then everything came alive. The mountains seemed to speak to me. Even the trees were smiling. I stared at everything as if I was looking at it for the first time.
The day passed fast and I even forgot to have my lunch until I felt hungry. I looked at my watch and was surprised that it was 3:00 pm. Soon the train pulled up at Butterworth. I looked at the people all around me. They all looked beautiful. When my uncle arrived with a smile, I threw my arms around him to give him a warm hug (拥抱). I had never done this before. He seemed surprised and then his weather-beaten face warmed up with a huge smile. We walked arm in arm to his car.