Dogs are very         to people. They’re people’s good            .

A．friends,friendly                         B．friendly, friends

C．friends, friend                          D．friendly, friendly

 

   Dogs are known for their sense of smell. They can find missing people and things like bombs and illegal drugs. Now a study suggests that the animal known as man’s best friend can even find bladder (膀胱) cancer.

Cancer cells (细胞) are thought to produce chemicals with unusual smells. Researchers think dogs have the ability to smell these smells, even in very small amounts, in urine (尿). The sense of smell in dogs is thousands of times better than in humans.

The study follows reports of cases where, for example, a dog showed great interest in a growth on the leg of its owner. The man was later found to be skin cancer.

Carolyn Willis led a team of researchers at Amersham Hospital in England. They trained different kinds of dogs for the experiment. The study involved urine collected from bladder cancer patients, from people with other diseases and from healthy people.

Each dog was tested 8 times. In each test there were 7 samples for the dogs to smell. The dog should signal the one from a bladder cancer patient by lying down next to it. Two cocker dogs were correct 56 percent of the time. But the scientists reported an average success rate of 41 percent.

   The British Medical Journal published the research. In all, 36 bladder cancer patients and 108 other people took part. During training, all the dogs reportedly even identified（认出）a cancer in a person who had tested healthy before the study. Doctors found a growth on the person’s right kidney (肾).

   Carolyn Willis says dogs could help scientists identify the combined (合成) chemicals produced by bladder cancer. That information could then be used to develop machines to test for the chemicals. The team also plans to use dogs to help identify markers for other kinds of cancer.

（  ）34. What’s the general idea of the text?

A. Dogs have a good sense of smell              B. Dogs can help cure cancer

C. Dogs can smell cancer                                   D. Dogs help perform experiments

（  ）35. According to the text, people who suffer bladder cancer_________.

A. often have urine with unusual smell           B. probably like smoking in their life

C. can easily make dogs lie down                  D. are likely to die within nine years

（  ）36. The underlined word “involved” in the text is closest in meaning to _________.

A. showed          B. proved                  C. used       D. preferred

（  ）37. What can we know from the last paragraph?

A. Dogs can only smell bladder cancer.

B. Dogs have a good knowledge of cancer.

C. Scientists might invent some machines to test cancer.

D. Cancer doesn’t have any sign in the beginning.

Dogs like living with people. A dog can be a very good friend. He can do a lot of things for people. Some dogs help people to look after sheep, other dogs help them to find lost children. And some of the dogs can help the blind (盲人) do things.
Many years ago there was a very good dog. His name was Seeing Eye dog. Now we can see this kind of dogs all over the world. They are working for the blind.
The Seeing Eye dog is strong, good and easy to train(训练). He helps the blind to walk from place to place.
Before a dog becomes a Seeing Eye dog, he must go to a training school for about three months. First the dog has to learn to sit or stay when he hears the trainer’s call. In his next lesson the dog learns to make his trainer across busy streets
The dog has many things to learn. And in every lesson he must learn to do one thing again and again for many times.
At the end of the training school he must take tests. When he passes the tests, the Seeing Eye dog will do the things by himself.
Now he can help blind people. The new master may be a man, a woman, or even a child. It takes the dog and his blind master about a month to learn to work and live together.
【小题1】We can see the Seeing Eye dog _______.

A．only in the country	B．only in small cities
C．all over the world	D．only on the busy street

【小题2】What can the Seeing Eye dog do?

A．Look after sheep	B．Help blind people
C．Find lost children	D．Train blind people

【小题3】If you want a dog to become a Seeing Eye dog, you must let him ________.

A．go to a training school	B．go to a middle school
C．go to an evening school	D．go to a children school

【小题4】First the dog has to learn to sit or stay __________.

A．when he hears the telephone call	B．when he hears another dog’s call
C．when he hears the master’s call	D．when he hears the trainer’s call

【小题5】How long will it take the dog and his blind master to learn to work and live together?

A．one year

B．five years

C．about a month

D．one week

Dogs like living with people. A dog can be a very good friend. He can do a lot of things for people.
Some dogs help people to look after sheep, other dogs help them to find lost (丢失的)children. And some of the dogs can help the blind(盲人)do things.
Many years ago there was a ver dog. His name was Seeing Eye dog. Now we can see this kind of dogs all over the world. They are working for the blind. The Seeing Eye dog is strong ,good and easy to train(训练).He helps the blind to walk from place.
Before a dog becomes a Seeing Eye dog, he must go to a training school for about three months. First the dog has to learn to sit or stay when he hears the trainer’s call. In his next lesson the dog learns to make his trainer across busy streets.
The dog has many things to learn. And in every lesson he must to do one thing again and again many times.
At the end of the training schooled must take tests. When he passes the tests, the Seeing Eye dog will do things by himself.
Now he can help blind people. The new master(主人)may be a man, a woman, or even a child. It takes the dog and his blind master about a month to learn to work and live together.
【小题1】We can see the Seeing Eye dog           .

A．only in the country	B．only in small cities
C．all over the world	D．only on the busy street

【小题2】What can the Seeing Eye dog do?

A．Look after sheep	B．Help blind people
C．Find lost children	D．Train blind people

【小题3】How long will it take the dog and his blind master to learn to work and live together?

A．One year

B．Five years

C．About a month

D．A week

Dogs like living with people. A dog can be a very good friend. He can do a lot of things for people. Some dogs help people to look after sheep, other dogs help them to find lost children. And some of the dogs can help the blind (盲人) do things.
Many years ago there was a very good dog. His name was Seeing Eye dog. Now we can see this kind of dogs all over the world. They are working for the blind.
The Seeing Eye dog is strong, good and easy to train(训练). He helps the blind to walk from place to place.
Before a dog becomes a Seeing Eye dog, he must go to a training school for about three months. First the dog has to learn to sit or stay when he hears the trainer’s call. In his next lesson the dog learns to make his trainer across busy streets.
The dog has many things to learn. And in every lesson he must learn to do one thing again and again for many times.
At the end of the training school he must take tests. When he passes the tests, the Seeing Eye dog will do the things by himself.
Now he can help blind people. The new master may be a man, a woman, or even a child. It takes the dog and his blind master about a month to learn to work and live together.
【小题1】We can see the Seeing Eye dog _______.

A．only in the country	B．only in small cities
C．all over the world	D．only on the busy street

【小题2】What can the Seeing Eye dog do?

A．Look after sheep.	B．Help blind people.
C．Find lost children.	D．Train blind people.

【小题3】If you want a dog to become a Seeing Eye dog, you must let him ________.

A．go to a training school	B．go to a middle school
C．go to an evening school	D．go to a children school

【小题4】First the dog has to learn to sit or stay __________.

A．when he hears the telephone call

B．when he hears another dog’s call

C．when he hears the master’s call

D．when he hears the trainer’s call

【小题5】How long will it take the dog and his blind master to learn to work and live together?

A．One year.

B．Five years.

C．About a month.

D．One week.