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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 sent 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 (信號(hào)). This is sent to 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, “‘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(電)!

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 of it 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 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

2.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

3.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

D. they are small and can get into small places

4.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 performing rescues

In the days when an ice cream cost much less, Tom, ___1.   __8-year-old boy, entered a hotel coffee shop __2.   sat at a table. A waitress put a glass of water in front of him. “How much is an ice cream?” “Fifty-cents,” replied the waitress. The little boy pulled __3._ right hand out of the pocket and studied a number of  4.   in it. “How much is a dish of plain ice cream?” he asked. Some people were now waiting for her service and the waitress grew a bit __5.    _ (patience). “Thirty-five cents.” she said __6._    (rude). The little boy carefully counted the coins __7.___.“I will have a plain ice cream,” he said. The waitress walked _8.   __ __. The boy finished the ice cream, paid the cashier and left. It was not long 9.  __   the waitress came back and then she began to wipe down the table and suddenly was surprised at what she saw. There, _10.  __  (place) neatly beside the empty dish, were two nickels and five pennies — her tip!

The lady said she would buy a gift for her daughter with the ________.

A. 20 dollars remained         B. 20 dollars to remain

C. remained 20 dollars         D. remaining 20 dollars

Many students were watching the story of the heroes from Changjiang University on TV, ________ moved to tears.

A. all of them     B. all of whom     C. all of that           D. all of which

I don't know what to_________at the university. I can't make any forecasts about my future.

A. take in             B. take over                         C. take off             D. take up

— Did you know any Chinese, Joyce, before you arrived in Beijing?

— In fact, never _______ it.

A. have I learned            B. I have learned     C. had I learned        D. I had learned

He ________ to the lab than he set out to do the experiment.

A. has no sooner got     B. no sooner got

C. will no sooner get     D. had no sooner got

About 6% of the population in New Zealand _________ Asians.

A.are                  B.is       C.make up                           D.are from