题目内容

 

                           Everybody hates rats. But in the earthquake capitals of the world – Japan, Los Angeles, Turkey – rats will soon be man’s new best friends.

What happens after an earthquake? We send in rescue dogs. Why? Because they can smell people. Dogs save lives. They help rescuers to find living people. But dogs are big and they can’t get into small spaces. So now a new research project is using a smaller animal to save lives: the rat.

How does it work? First , the rat is trained to smell people. When this happens, the rat’s brain gives a signal（信号）.This is sent to a small radio on its back, and then the rescuers follow the radio signals. When rat’s brain activity jumps, the rescuers know that someone is alive. The rat has smelled that person.

Although there are already robots which can do this job, rats are better. Christian Linster at Cornell University, New York, says, “Robots’ noses don’t work well when there are other smells around. Rats are good at that. ” Rats can also see in the dark. They are cheaper and quicker to train than dogs, and unlike robots, they don’t need electricity!

The “rat project” is not finished, but Julie Ryan of International Rescue Corps in Scotland says, “It would be fantastic. A rat could get into spaces we couldn’t get to, and a rat would get out if it wasn’t safe.” Perhaps for the first time in history, people will be happy to see a rat in a building（but only after an earthquake, of course.）

71．In the world earthquake capitals, rats will become man’s best friends because they can          .

         A．take the place of man’s rescue jobs

         B．find the position of people alive who are trapped in buildings

         C．serve as food for people alive who are trapped in buildings

D．get into small spaces

72．From the third paragraph we know the rescuers can judge a person is alive by          .

         A．the noise made by the rat

B．the rat’s unusual behaviour

         C．the signal sent by the radio on the rat’s back

D．the smell given off by the person

73．In doing rescue jobs,         .

        A．rats smell better than dogs

         B．dogs don’t need to be trained to smell people

         C．robots’ sense of smell can be affected by other smells around

         D．rats can see in the dark and smaller than robots

74．Rats have all the following advantages except that         . w

         A．they are more fantastic than other animals

         B．they are less expensive to train than dogs

         C．they don’t need electricity

         D．they are small and can get into small places

75．After reading the passage we can know         .

         A．at present rats have taken the place of dogs in searching for people

         B．the “rat project” has been finished

         C．people are now happy to see a rat in a building

         D．now people still use dogs and robots in saving people

 

【答案】

 

 B

 C

 C

 A

 D

【解析】             

 

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【小题1】The farmers have b________ a lot from the government’s support.
【小题2】The story r________ me of my terrible experience in the coal mine.
【小题3】There was a strong c________ about their wedding plans and everybody wondered.
【小题4】Chinese scientist Chen Yu’ao was a__________ the Annual Fresnel Prize in 2013 because of his contribution in physics.
【小题5】At the beginning, it was not immediately o_________ that water was fundamental to the development of life.
【小题6】An a__________ doesn’t necessarily mean doing something rough and dangerous. It may be anything that you have never experienced before.
【小题7】There e___________ a certain doubt among the students as to the necessity of the work.
【小题8】Don’t be upset. There is no f________ on earth that does not end in parting.
【小题9】They were s___________ by the police as they were entering the bank.
【小题10】Some festivals, such as the Japanese Obon, are held to honor the dead or to satisfy the a___________, who might return either to help or to do harm.

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