4．From what Hengwei and Professor Zhang
Yang said，we can know that ____ ．
A．they have different opinions on
changes and challenges
B．people are not afraid of
competition from foreign companies
C．the Chinese people are ready to
face any changes and challenges
D．they are both greatly encouraged by
the book
(B)
Some people take
lots of exercise．Others keep
to strict diets．But according
to recent research，the best way to live a long and happy life is simple．Get a dog．
“We have known for many years that the company of a pet can increase
well-being in a number of ways，”says Dr Bonnie Beaver，an animal behaviour specialist at Texas University．“For example，the survival rates of heart attack
victims with pets are much greater than those of people without pets．”
According to Dr
Beaver，pet owners
are less likely to need a doctor．They recover more quickly when they do get ill．They have lower blood pressure，take more exercise and are more
socially active．
Above all，they are happier．Seventy per cent of the families Dr
Beaver surveyed said that their family environment was happier after they got a
pet．And this is
what Dr Beaver and other researchers are trying to achieve．They want to find a scientific link
between human happiness and a long life．
There is no
final answer to this question yet，but it seems to be something to do with emotional ties．People with someone or something to
love live longer．“There are
many forms of animal-human relationship and some are very helpful，”says Dr Beaver．It seems that the more lovely an
animal is，the more it
benefits our health．As the saying goes，“if you want to be loved，get a dog．”
Pet ownership
benefits men and women equally．Other life experiences divide the sexes．“Women are more sensitive to bad
marriages than their husbands because they work harder at their relationships，”says Dr Janice Glaser of Ohio
State University．
The message
seems to be that a woman is better off with a good dog than a bad husband．Yet in some ways，men are similar to dogs．They like getting dirty and making
a mess．They forget
birthdays．They can
disappear for days on end．How can they be better trained？