阅读理解. Dogs wag their tails in different directions depending on whether they are excited and wantingto move forward or threatened and thinking of moving back, a study has found. Researchers in Italy 题目和参考答案——青夏教育精英家教网—

题目内容

阅读理解。

     Dogs wag (摇摆) their tails in different directions depending on whether they are excited and wanting
to move forward or threatened and thinking of moving back, a study has found.
     Researchers in Italy examined the tail wagging behavior of 30 dogs, catching their responses to a range
of stimuli (刺激物) with video cameras. To conduct the study they chose 15 male dogs and 15 female ones
aged between one and six years. The dogs were all family pets whose owners had allowed them to take part
in the experiment at Bari University. The dogs were placed in a large wooden box with an opening at the front
to allow for them to view various stimuli. They were tested one at a time.
     The researchers led by Professor Giorgio Vallortigara of the University of Trieste found that when the
dogs were shown their owners-a positive experience-their tails wagged energetically to the right side. When
they were shown an unfamiliar human they wagged to the right, but with somewhat less enthusiasm. The
appears of a cat again caused a right-hand side wag, although with less intensity again. The appearance of a
large unfamiliar dog, similar to a German shepherd, changed the direction of tail wagging to the left. Research
ers supposed the dog was thinking of moving back. When the dogs were not shown any stimuli they tended
to wag their tails to the left, suggesting they preferred company. While the changes in the tail wagging were
not easily noticed without the aid of video, it was thought that the findings could help people judge the mood
(心情) of dogs. Computer and video systems, for example, could be used by professional dog trainers to
determine the mood of dogs that they were required to approach.

1. The video cameras were used to catch the dogs' responses because _____.

A. it was easier to catch the dogs'response changes in the tail wagging
B. the dogs were put in the wooden boxes and tested one at a time.
C. they enabled the dogs'owners to know about their dogs'habit
D. the dogs wagged their tails in different directions when they were in different moods

2. The underlined word "intensity" in the passage means _____.

A. surprise
B. worry
C. excitement
D. interest

3. When there are no stimuli, a dog will _____.

A. wag to the left
B. wag to the right
C. not wag at all
D. wag to the left and then to the right

4. The underlined word "they" refers to _____.

A. the dogs
B. the trainers
C. the systems
D. the researchers

5. The purpose of doing the experiment is _____.

A. to train dogs for their owners
B. to help people judge the mood of dogs
C. to help dogs find company
D. to help people choose their pet dogs

1-5: ACABD

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相关题目

阅读理解E

Do you have a sore throat, a running nose and a headache? Do you keep coughing and sneezing? If you do, the chances are that you have a cold or perhaps flu---but which one? Although both colds and flu are caused by viruses, they are very different illnesses.

Colds, which usually last about a week, affect the nose most. They commonly cause a running nose and sneezing. Sometimes, they cause a headache, a cough and slightly aching muscles.

Flu is a much more serious illness and is caused by different groups of viruses. People with flu usually get all the symptoms(症状) described above. However, they also get a high fever, a dry cough and much worse aching. Fever is one of the characteristic symptoms of the flu for all ages. The symptoms also last much longer. Sometimes they don’t disappear for at least two weeks.

Flu can be a deadly disease. The elderly(年长的), who are weaker and less healthy than most younger people, can die from flu. This is one reason why old people are advised to have a flu injection(预防针) before the start of winter when flu is most common. This injection is inexpensive and definitely（明显地）worth it.

If you have a cold or flu, you must always deal with used tissues(手巾纸) carefully. Don’t leave dirty tissues on your desk or on the floor. Someone else has to pick these up and viruses could be passed on. And finally, remember to cover your nose and mouth when you sneeze! You don’t want to see the small drops of liquids blown(喷) out of your nose and mouth when you sneeze, do you? Disgusting(令人作呕), eh? Now you can understand why it’s a good idea to cover your nose and mouth when you sneeze!

In paragraph 4, we learn that ________.

A. flu injection can cause death B. most old people die from flu

C. flu can kill old people easily D. flu is most common in summer

Dealing with used tissues properly(正确地) is important because ________.

A. it helps keep your classroom tidy B. it prevents the spread of colds and flu

C. people hate picking up dirty tissues D. picking up lots of tissues is hard work

Which of the following statements is TRUE according to the passage?

A. Both colds and flu last the same time.

B. Both colds and flu can be prevented by injection.

C. Both colds and flu are caused by the same viruses.

D. Both colds and flu have an aching symptom.

Which is probably the best title for the passage?

A. Colds and Flu B. The Different Symptoms of a Cold and Flu

C. Prevention Is Better Than Cure

D. Cover Your Nose and Mouth When Sneezing

阅读理解E
Do you have a sore throat, a running nose and a headache? Do you keep coughing and sneezing? If you do, the chances are that you have a cold or perhaps flu---but which one? Although both colds and flu are caused by viruses, they are very different illnesses.
Colds, which usually last about a week, affect the nose most. They commonly cause a running nose and sneezing. Sometimes, they cause a headache, a cough and slightly aching muscles.
Flu is a much more serious illness and is caused by different groups of viruses. People with flu usually get all the symptoms(症状) described above. However, they also get a high fever, a dry cough and much worse aching. Fever is one of the characteristic symptoms of the flu for all ages. The symptoms also last much longer. Sometimes they don’t disappear for at least two weeks.
Flu can be a deadly disease. The elderly(年长的), who are weaker and less healthy than most younger people, can die from flu. This is one reason why old people are advised to have a flu injection(预防针) before the start of winter when flu is most common. This injection is inexpensive and definitely（明显地）worth it.
If you have a cold or flu, you must always deal with used tissues(手巾纸) carefully. Don’t leave dirty tissues on your desk or on the floor. Someone else has to pick these up and viruses could be passed on. And finally, remember to cover your nose and mouth when you sneeze! You don’t want to see the small drops of liquids blown(喷) out of your nose and mouth when you sneeze, do you? Disgusting(令人作呕), eh? Now you can understand why it’s a good idea to cover your nose and mouth when you sneeze!
【小题1】 In paragraph 4, we learn that ________.

A．flu injection can cause death

B．most old people die from flu

C．flu can kill old people easily

D．flu is most common in summer

【小题2】 Dealing with used tissues properly(正确地) is important because ________.

A．it helps keep your classroom tidy

B．it prevents the spread of colds and flu

C．people hate picking up dirty tissues

D．picking up lots of tissues is hard work

【小题3】 Which of the following statements is TRUE according to the passage?

A．Both colds and flu last the same time.

B．Both colds and flu can be prevented by injection.

C．Both colds and flu are caused by the same viruses.

D．Both colds and flu have an aching symptom.

【小题4】Which is probably the best title for the passage?

A．Colds and Flu

B．The Different Symptoms of a Cold and Flu

C．Prevention Is Better Than Cure

D．Cover Your Nose and Mouth When Sneezing