Be careful what you say around your dog. It might understand more than you think.

A border collie named Rico recognizes the names of about 200 objects, say researchers in Germany. The dog also appears to be able to learn new words as easily as a 3-year-old child. Its word-learning skills are as good as those of a parrot or chimpanzee(黑猩猩).

In one experiment, the researchers took all 200 items that Rico is supposed to know and divided them into 20 groups of 10 objects. Then the owner told the dog to go and fetch one of the items and bring it back. In four tests, Rico got 37 out of 40 commands right. As the dog couldn't see anyone to get clues, the scientists believe Rico must understand the meanings of certain words.

In another experiment, the scientists took one toy that Rico had never seen before and put it in a room with seven toys whose names the dog already knew. The owner then told Rico to fetch the object, using a word the dog had never heard before.

The correct object was chosen in seven out of l0 tests, suggesting that the dog had worked

out the answer by process of elimination(排除法). A month later, Rico remembered half of the new names, which is even more impressive.          

Rico is thought to be smarter than the average dog. For one thing, Rico is a border collie, a breed (品种)known for its mental abilities. In addition, the 9-year-old dog has been trained to fetch toys by their names since the age of nine months.

It's hard to know if all dogs understand at least some of the words we say. Even if they do, they can't talk back. Still, it wouldn't hurt to sweet-talk your dog every now and then. You might just get a big, wet kiss in return!

From paragraph 2 we know that __        .

A. animals are as clever as human beings

B. dogs are smarter than parrots and chimpanzees

C. chimpanzees have very good word-learning skills

D. dogs have similar 'learning abilities as 3-year-old children

Both experiments show that             .

A. Rico is smart enough to get all commands right

B. Rico can recognize different things including toys

C. Rico has developed the ability of learning mathematics

D. Rico won't forget the names of objects once recognizing them

Which of the following statements is true?

A. The purpose of the experiments is to show the border collie's mental abilities.

B. Rico has a better memory partly because of its proper early training.

C. The border collie is world-famous for recognizing objects.

D. Rico is born to understand its owner's commands.

Which may be the best title of the passage?

A. Do dogs understand us?                       

B. Does your dog understand you?

C. Be careful with dogs.                             

D. Be friendly to your dog.      

From school to band Practice, the Venturi Eclectic is an Earth-friendly way to get where you want to go. This battery-powered, zero-emission (meaning it doesn't pollute the air) vehicle runs mainly on renewable energy. Solar panels on the Eclectic's roof absorb sun rays when you're driving. On windy days, you can connect a machine to the car's roof that collects energy from the wind while you're parked. The Eclectic's top speed is 28 miles an hour; the battery lasts for 31 miles before it needs to be recharged. Zipping (迅速行进) around the neighborhood has never been better.

Here's an eco-friendly way to tell time: Simply fill the Bedol Water-powered Clock's tank (箱) with water, add some lemon juice, and the clock will display the time without the need for environmentally harmful batteries. There are two sets of metal electrodes (电极) inside the water tank. Water contains ions (离子) that carry negative and positive charges. These ions complete a charge between the electrodes, creating enough energy to power the clock. Just refill the tank every few weeks, and this clock will keep on ticking.

Bloodhound SuperSonic Car (SSC) will be the first car to attempt to break the l,000-mile-an-hour barrier. (The current record is 763 miles an hour.) A concept for now, the rocket-shaped car gets its original push to 350 miles an hour from a jet engine. Then a rocket fires up, pushing the SSC past 1,000 miles an hour. In order to keep the car streamlined (流线型的), the driver lies back at a 45-degree angle (角度).

You’re having a blast at your friend’s birthday party. But when it's time to bring out the cake, everyone crowds around, blocking your view. No worries. Throw the Triops into the air, and this clever camera captures the view from above. The Triops can take three pictures at once, each from different angles. You can also record sounds and command the Triops to start shooting whenever it hears that noise. That's one smart camera.

What is the common characteristic of the Venturi Eclectic and the Bedol Water-powered Clock?

A. They don't need batteries.      B. They are difficult to operate.

C. They can be powered by water. D. They are environmentally friendly.

According to the passage, the Venturi Eclectic      .

A. is popular with businessmen     B. is suitable for a long trip

C. can turn wind into energy D. has only a little gas emission

The underlined phrase “having a blast” in the last paragraph probably means      .

A. looking at a picture          B. enjoying yourself

C. blowing out a candle D. recording sounds

Which of the following is TRUE according to the passage?

A. The Triops is sensitive to sounds.

B. The driver of the SSC must be of great size.

C. The color of the Bedol Water-powered Clock is like that of lemon.

D. The SSC doesn’t have anything to do with a rocket actually.

From early times, man has been interested in art. People have often worked together to collect and save the world’s art treasures. Fine art treasures from many countries are kept in an art museum called the Louvre（罗浮宫）in Paris, France. The works of art have been collected by the people of France over many centuries. It is the biggest art museum in the world. The Louvre has not always been a museum. The first building was a fort（堡垒）. In 1190, it was the king’s castle with high walls and a round tower. It had a moat（护城河）to keep out the enemies. Over the years, the number of buildings around the castle grew. By 1350, the castle no longer needed a fort. The Louvre became a palace home for French kings and queens.
During time of peace, new treasures were brought in. During the days of war, many treasures were stolen, and the buildings were damaged.
When FrancisⅠbecame king of France in 1515, he brought in many artists from other countries. One of the artists was Lenardo da Vinci from Italy. Da Vinci’s “Mona Lisa” is the best known painting in the museum today.In 1793, the Louvre became a public museum. It is a place where art treasures are kept for everyone to enjoy. Every year millions of people from all over the world come to the Louvre to see the masterpieces.
46. How long has the Louvre been a museum?
A. For over 800 years.     B. Since1350  C. Since1515      D. For over 200 years
47. Most of works of art in the Louvre have been collected probably by _______.
A. the French people     B. FrancisⅠ C. Leonardo da Vinci   D. people of the world
48. Which of the following is NOT mentioned in the passage?
A.Da Vinci once stayed in France.
B. “Mona Lisa” is kept in the Louvre.
C. The Louvre was once a church as well as a palace.
D. The Louvre is a place of interest to different people from all over the world
49. Why is it good for the works of art to be kept in public museums?
A.Works of art will not be stolen  
B. Works of art will not be damaged
C. Artists can study the works of art.  
D. Everyone has a chance to enjoy the works of art.
50. According to the passage, which of the following statements is TRUE?
A.  Louvre is always a museum since it was built.
B. All the art treasures in the Louvre have been destroyed in the war.
C.Louvre was once the king’s castle in history.
D. There is still a fort near the Louvre now.

From birth to death, the word kick has been given an important part in expressing human experience. The proud and happy mother feels the first signs of life kicking inside her body. And that same life------many years later------ comes to its end in a widely-used expression, to kick the bucket( 吊桶) .  The expression to kick the bucket is almost 200 years old.  One belief is that it started when an English stableman(马夫) killed himself by hanging  while standing on a bucket. He put a rope around his neck and tied it to a beam(梁柱) in the ceiling, and then kicked the bucket away from under him.
Another old expression that comes from England is to kick over the traces. Traces were the chains（链子） that held at horse or mule to a wagon(货运马车)or plow. Sometimes, an animal refused to obey and kicked over the traces.
Kick around is an expression that is heard often in American English. A person who is kicked around is someone who is treated badly. Usually he is not really being kicked by somebody's foot. He is just not being treated with the respect that all of us want. A person who has kicked around for most of his life is someone who has spent his life moving from place to place. In this case, kicking around means moving often from one place to another. Kick around has another meaning when you use it with the word idea. When you kick around an idea, you are giving that idea some thought.
There is no physical action when you kick a person upstairs, although the pain can be as strong .You kick a person upstairs by removing him from an important job and giving him a job that sounds more important, but really is not.
Still another meaning of the word kick is to free oneself of a bad habit, such as smoking cigarettes. Health campaigns urge smokers to kick the habit.
【小题1】It is clear that the author wants to help readers _____________.

From school to band Practice, the Venturi Eclectic is an Earth-friendly way to get where you want to go. This battery-powered, zero-emission (meaning it doesn't pollute the air) vehicle runs mainly on renewable energy. Solar panels on the Eclectic's roof absorb sun rays when you're driving. On windy days, you can connect a machine to the car's roof that collects energy from the wind while you're parked. The Eclectic's top speed is 28 miles an hour; the battery lasts for 31 miles before it needs to be recharged. Zipping (迅速行进) around the neighborhood has never been better.



Here's an eco-friendly way to tell time: Simply fill the Bedol Water-powered Clock's tank (箱) with water, add some lemon juice, and the clock will display the time without the need for environmentally harmful batteries. There are two sets of metal electrodes (电极) inside the water tank. Water contains ions (离子) that carry negative and positive charges. These ions complete a charge between the electrodes, creating enough energy to power the clock. Just refill the tank every few weeks, and this clock will keep on ticking.
Bloodhound SuperSonic Car (SSC) will be the first car to attempt to break the l,000-mile-an-hour barrier. (The current record is 763 miles an hour.) A concept for now, the rocket-shaped car gets its original push to 350 miles an hour from a jet engine. Then a rocket fires up, pushing the SSC past 1,000 miles an hour. In order to keep the car streamlined (流线型的), the driver lies back at a 45-degree angle (角度).
You’re having a blast at your friend’s birthday party. But when it's time to bring out the cake, everyone crowds around, blocking your view. No worries. Throw the Triops into the air, and this clever camera captures the view from above. The Triops can take three pictures at once, each from different angles. You can also record sounds and command the Triops to start shooting whenever it hears that noise. That's one smart camera.
【小题1】What is the common characteristic of the Venturi Eclectic and the Bedol Water-powered Clock?