Question

阅读理解 　　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(营救)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 with a small radio on its back, and then the rescuers follow the radio signals．When the 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, “‘Robot’ 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)． (1) In the earthquake capitals of the world, rats will become man’s best friends because they can __________． [　　] A． take the place of man’s jobs while saving people after earthquakes 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． move faster compared with other animals (2) From Paragraph 3 we know the rescuers can judge a person alive by __________． [　　] A． the noise made by the rat and the radio B． the rat’s unusual and abnormal behavior C． the signal sent by the radio on the rat’s back D． the smell given off by the person and rats (3) In doing rescue jobs, __________． [　　] A． rats can smell better than dogs B． dogs don’t need to be trained to smell people C． robots’ smell can be affected by other smells around D． rats can see in the dark and are smaller than all the robots (4) Rats have all the following advantages EXCEPT that __________． [　　] A． they are more fantastic than other animals B． they are less expensive to train than dogs C． they don’t need electricity at all D． they are small and can get into small places (5) 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 completed C． people are now happy to see a rat in a building D． now people still use dogs and robots in rescues

Answer 1

答案：1．B;2．C;3．C;4．A;5．D;