75．Which of the following statements is true? A．If you are careful enough, you can make a perfect——青夏教育精英家教网—

摘要：75．Which of the following statements is true? A．If you are careful enough, you can make a perfect speech． B．Speech-making is a kind of performance． C．Listeners are not judges and they pay more attention to the message． D．Martin Luther King is not a good speaker． C Chocolate is a very special kind of food. Although certainly not a vital part of the human diet, it is loved for its delicious sweet taste and the way it melts in the mouth, and would be missed by many millions of people if it suddenly ceased to exist. Indeed, the global population of “chocoholics is very large. The most chocoholic countries in the world are in Europe; Switzerland and Austria top the list with an annual average consumption of around ten kilograms of chocolate per person, closely followed by Britain and Ireland. Many people believe that eating chocolate has a mood-enhancing effect. There is disagreement, however, about whether this is due to the ingredients of chocolate or the significance attached to eating it. Some scientists have suggested that chocolate releases chemicals in the brain that create feelings of happiness, while others believe the happy feelings might only occur because people see eating chocolate as a way of being nice to themselves. The vital ingredient in chocolate is the seeds of the cacao tree, which only grows in tropical countries. Cacao was first cultivated at least 2,500 years ago by the Maya and Aztec civilisations of Central America, which used the seeds to make a chocolate-flavoured drink. In the early sixteenth century, Spanish explorers who arrived in Central America recorded that the Aztec emperor, Montezuma, was particularly fond of this chocolate drink, although it was not mixed with sugar and therefore had a bitter rather than a sweet taste. The Spanish took cacao seeds back to Europe, where the chocolate drink quickly became popular with very rich people, the only ones able to afford it. It wasn’t until the nineteenth century that chocolate began to appear in the solid form that is so familiar today. The world’s biggest producers of cacao today are the Ivory Coast and Ghana, both in western Africa. The three main varieties of chocolate are dark, milk and white (which doesn’t contain any solid part of the cacao seed, and perhaps therefore shouldn’t be considered `real’ chocolate). No one would pretend that eating large amounts of any of these is good for you, but there is some evidence to suggest that regularly eating small quantities of dark chocolate might reduce the risk of heart disease.

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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 10 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!

41．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

42．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

43．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.

44．What does the writer want to tell us?

A．To train your dog.

B．To command your dog to do something.

C．To be friendly to your dog.

D．To be careful with your dog.

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

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The correct object was chosen in seven out of 10 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.

1．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

2．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

3．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.

4．What does the writer want to tell us?

A．To train your dog.

B．To command your dog to do something.

C．To be friendly to your dog.

D．To be careful with your dog.

查看习题详情和答案>>

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

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.

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!

61. 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

62. 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

63. 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.

64. What does the writer want to tell us?

A. To train your dog. B. To talk to your dog.

C. To be friendly to your dog. D. To be careful with your dog.

65．Trough the passage, we can infer EXCEPT_______________.

A. We should make friends with dogs.

B.The dog is our enemy.

C.We should respect dogs.

D.The dog is clever.

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Do dogs understand us?
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．
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 ten 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!
1．From paragraph 2 we know that __________．
A．animals are as clever as human beings
B．chimpanzees have very good word-learning skills
C．dogs are smarter than parrots and chimpanzees
D．dogs have similar learning abilities as 3-year-old children
2．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
3．Which of the following statements is true?
A．Rico has a better memory partly because of its proper early training．
B．The purpose of the experiments is to show the border collie's mental abilities．
C．The border collie is world-famous for recognizing objects．
D．Rico is born to understand its owner's commands．
4．What does the writer want to tell us?
A．To train your dog． B．To talk to your dog．
C．To be careful with your dog． D．To be friendly to your dog．

查看习题详情和答案>>

Do dogs understand us?
Be careful what you say around your dog. It might understand more than you think.
A border collie博德牧羊犬 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 the 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!
【小题1】From paragraph 2 we know that ____________..