They already guide blind and disabled people; now dogs are to be trained to help people with dementia (痴呆). The duties of these "guide dogs for the mind" will include reminding their owners to take medication, as well as encouraging them to eat, drink and

We all love a hero, and rescue dogs are some of the biggest heroes of all. You will often find them going above and beyond duty to save someone, risking--and at times losing--their lives in the process.

Rescue dogs are generally found in the Sporting and Hunting Groups, or from the traditional Herding Group. These types include the Bloodhound, Labrador Retriever, Newfoundland, German Shepherd, Golden Retriever, and Belgian Malinois--all of which are chosen for search-and-rescue duty because of their amazing physical strength, loyalty, and their tendency for mental stability.

These types also have a keen sense of hearing and smell--to better locate lost individuals—and are often able to access hard-to-reach areas. As highly trained animals, they serve in many different fields, including specialist search, snow slide rescue, dead body location, and tracking.

To overcome obstacles and succeed when performing the demanding duties of a search-and-rescue worker, a dog must display certain qualities. In addition to intelligence and strength, the dog must be swift, confident, easily trainable, adaptable, and have a high level of stamina (耐力) and endurance. A strong sense of group cooperation and an ability to engage in friendly play during "down" time is also required of search-and-rescue dogs.

A rescue dog goes through many, many hours of intensive training to be fit for duty. Training is not for the faint-hearted. Certification training can take from two to three years, working three to four hours a day, three to six days a week, often in group,team-oriented sessions.

Each search-and-rescue field requires different types of training. Rescue training, for instance, includes "air scenting"--where dogs are trained to smell the air for the victim&39; s scent (气味) and then follow the scent to the person. This ability is crucial to finding victims trapped under collapsed buildings and snow slide.

40. Rescue dogs are chosen probably because__

A.they are loyal

B.they are brave

C.they have amazing appearances

D.they have good eyesight

What does "faint-hearted" in Paragraph 5 mean?A.Courageous.

B.Cowardly

C.Energetic

D.Slow

Which ability is most important for dogs to rescue people trapped in snow?A.Sharp hearing

B.Swift movement

C.Extraordinary smelling

D.A strong memory

What is the passage mainly about?A.Selection process of rescue dogs

B.Qualities and training of rescue dogs.

C.Risks rescue dogs are faced with

D.Types of tasks rescue dogs can perform

请帮忙给出每个问题的正确答案和分析，谢谢！

A.give

B.turn

C.make

D.take

此题为判断题(对，错)。

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

A、there was an alarm clock

B、the host was giving them the “Look, I’m washing the dishes now” hint

C、People began to yawn

D、there was no wine to drink any more

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 ani mal 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 (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 Northwestern Memorial Hospital 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 on a diet program. On average, people lost about I1 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 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.

67．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.

Leading a dog’s life in America isn’t such a bad thing. Many grocery stores sell pet foods to owners eager to please their pets. In Houston, Texas, dogs can have their dinner delivered to their homes, just like pizza. Well-to-do canines can attend doggy daycare centers while their owners work. Pets can even accompany their owners on vacation. Fancy hotels are beginning to accommodate both man and beast. Furry guests in hotels can enjoy gourmet meals served on fine china and sleep in soft beds.

Beneath the furry luxuries, there lies a basic American belief: Pets have a right to be treated well. At least 75 animal welfare organizations exist in America. These provide care and adoption services for homeless and abused animals. Vets can give animals an incredible level of medical care for an incredible price. To pay for the high-tech health care, people can buy health insurance for their pets. And when it’s time to say good -bye, owners can bury their pets in a respectable pet cemetery.

The average American enjoys having pets around, and for good reason. Researchers have discovered that interacting with animals lowers a person’s blood pressure. Dogs can offer protection from burglars and unwelcome visitors. Cats can help rid the home of unwanted pests. Little creatures of all shapes and sizes can provide companionship and love. In many cases, having a pet prepares a young couple for the responsibilities of parenthood. Pets even encourage social relationships: They give their owners an appearance of friendliness, and they provide a good topic of conversation.

Pets are as basic to American culture as hot dogs or apple pies. To Americans, pets are not just property, but a part of the family. After all, pets are people, too.

(1)The word “please” in paragraph 1 line 2 means ().

A、to make somebody glad

B、to make somebody unhappy

C、to invite somebody

D、to treat somebody badly

(2)The topic sentence in paragraph 2 is ().

A、At least 75 animal welfare organizations exist in America

B、Vets can give animals an incredible level of medical care for an incredible price

C、To pay for the high-tech health care, people can buy health insurance for their pets

D、Beneath the furry luxuries, there lies a basic American belief: Pets have a right to be treated well

(3)“When it’s time to say good-bye” in paragraph 2 line 5 means ().

A、when the pet says “good-bye” to the host

B、when the host says “good-bye” to the pet

C、when the pet dies

D、when the pet has to leave

(4)Paragraph 3 mainly tells us ().

A、every American enjoys having pets

B、having pets can do people something good

C、dogs and cats are people’s good friends

D、pets do not encourage social relationships

(5)The author writes the last paragraph to show ().

A、pets are the same as hot dogs and apple pies

B、pets are people

C、pets are just property

D、pets are important