题目内容：

    Researchers found animals lovers exercise their pet twice a day for 24 minutes each time --- a total of five hours and 36 minutes a week. On top of that, the average dog owner also takes part pet out to take three long walks each week adding another two hours and 33 minutes to the total. But those without a dog spend an average of just one hour and 20 minutes per week exercising by going to the gym or heading out for a walk or jog. And almost half of non-pet owners admit they take no exercise.

A spokesperson said the difference between the two was that going to the gym can feel like a boring task while dog-walking can be far more enjoyable. “Having a couple of short walks every day soon adds up and this research shows that it amounts to more time than people spend in the gym,” he said. And gym goers exercise inside an air-conditioned gym, while dog walkers are able to jog for miles and enjoy fresh air when admiring the Great British countryside.”

The study of 5,000 people, including 3,000 dog owners, showed that 57 percent of those considered walking the dog as their main form of exercise. More three quarters said they would rather take their dog for a walk than go to the gym. A total of 86 percent said they enjoyed taking their pet out each day, with just 22 percent saying they sometimes saw it as a boring task. But only 16 percent of respondents said they enjoyed exercising in the gym, while almost 70 percent considered it a boring task.

The survey shows that having a dog to walk actually encourages regular exercise, with 60 percent of pet owners saying they always go for a walk with their dog --- even when time is valuable.

1.How long do dog owners walk their dog on average each week according to the study?

A.One hour and 20 minutes B.Five hours and 36 minutes

C.Two hours and 33 minutes D.Eight hours and 9 minutes

2.What can we learn from Paragraph 2?

A.Walking a dog can be tiring sometimes.

B.Walking a dog is more enjoyable than exercising in the gym.

C.People prefer to exercise in the gym rather than walk a dog.

D.Taking exercise in the gym can be very comfortable.

3.What does the underlined word “respondents” in paragraph 3 mean?

A.Dog walkers. B.Pet owners.

C.Gym goers. D.Study participants.

4.What is the main idea of this passage?

A.People without a pet usually go to the gym.

B.Pet owners spend no time exercising in the gym.

C.Dog owners usually get more exercise than gym goers.

D.People do exercise either by walking a dog or going to the gym.