:2012初三阅览操练：Rico is a dog who lives in Germany. His owners trained him from a young age to find his toys.
When they say the name of a certain toy, Rico can find it. In fact, he seems to know the names of
200 toys！
Some researchers in Germany wanted to test Rico. They put his toys in a room and then told
him to go into the room and find a certain toy. Since nobody was in the room with Rico, he had no
help from anyone finding the right toy. The researchers did this test forty times. Rico found the
right toy thirty-seven times.
Then the researchers tried something else. They put seven of Rico’s toys in the room and one
new toy that Rico had never seen before. Then they told Rico to go into the room and get the new
toy. This new toy had a name Rico had never heard before. Rico found the right toy seven out of
ten times！
Researchers cannot really say that Rico knows words or language. However, these tests seem
to show that Rico can think about what he hears and think about what he knows. In fact, Rico
seems to think and remember things as well as a three-year-old child.
From these tests, animal researchers know one thing for sure. Rico has given them a lot to
think about.
( )51. What is Rico good at?
A. Putting things in order.
B. Catching things.
C. Counting things.
D. Finding things.
( )52. What did researchers ask Rico to do at first?
A. Bring a certain toy out of a room.
B. Name toys and put them away.
C. Choose a toy that he liked playing with.
D. Put his toys into his room.
( )53. How many times did Rico go into the room to find a new toy that he did not know?
A. Seven.
B. Ten.
C. Forty.
D. Thirty-seven.
( )54. Why were researchers surprised by what they saw? Because it __________.
A. Rico always knew which toys were his and which were not
B. Rico seems to remember things as well as a teenager
C. Rico showed that he understands language
D. Rico worked very hard without help from his owner
( )55. A good title for the passage is ____________.
A. German Dogs Are the Smartest Dogs
B. Rico Surprises Researchers
C. How Dogs Use Language
D. The Best Toys for Dogs
