A discovery in animal science is causing close attention among dog owners nationwide.The discovery was made by the famous researcher and vet（兽医），Dr.Mary Goldstein,or Dr.Mary,as he's known in the industry.
"I used to spend a lot of time teaching owners to spot red flags-like restlessness（坐立不安），lethargy,and antisocial behavior-so they can tell when their dog is asking for help right away," he recalls. "But now,I want to help people take a more active method to their dogs' health."
It was this idea that led Dr.Mary to discover a remarkable new care technique that could help your dog lead the longest,healthiest life possible - no matter their age.
"It was amazing to see the transformation,especially in older dogs who were already slowing down," he says. "In a matter of weeks,their energy and enthusiasm noticeably improved.They had more energy,they were more playful,more limber,more relaxed…it was pretty astonishing.Even their coats looked healthier."
Over the course of his career,Dr.Mary has treated countless animals and been at the forefront of veterinary advancement for years,but he believes this to be his most important discovery to date.
"It's rooted in science typically used for humans,but I've made it very simple to use for dogs," he explains. "I think it's exactly what our four-legged friends have been asking for."
Eearlier this month,Dr.Mary released an educational video for other dog owners,so they could follow his plan for a medical treatment at home.
If you'd like to try increasing your pet's life span using Dr.Mary's method,click below for more complete instructions.



What led Dr.Mary to discover a new care technique？ ______

A. The aim to help dogs live a much longer life.
B. The thought of improving dogs' health actively.
C. The plan to make dogs live a much healthier life.
D. The hope of becoming a great vet throughout history.

What does the underlined word "this" in paragraph 5 refer to？ ______

A. Teaching people how to take care of their dogs.
B. Treating a large quantity of animals these years.
C. Being at the forefront of veterinary advancement.
D. Discovering a method to improve dogs' health condition.

Which of the following may best describe Dr.Mary？ ______

A. Helpful and creative.
B. Proud and mean.
C. Optimistic and passive.
D. Famous and humorous.

Where is the text most probably from？ ______

A. A magazine.
B. A novel.
C. A website.
D. A booklet.