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 behaviour of 30 dogs, catching their responses to a range of stimuli(刺激物) with video camems. 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 appearance 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. Researchers 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.The video cameras were used to catch the dogs’ response because______.
| A．The dogs wagged their tails in different directions when they were in different moods |
| B．they enabled the dogs’ owners to know about their dogs’ habit |
| C．It was easier to catch the dogs’ response change in tail wagging |
| D．The dog were put in the wooden boxes and tested one at a time |
The underlined word “intensity”in the passage means_______.
| A．surprise | B．worry | C．excitment | D．interest |
The underlined word “they” refers to _______.
| A．the dogs | B．the trainers | C．the systems | D．the researchers |
The purpose of doing the experiment is ________.
| A．to train dogs for their owners |
| B．to help dogs find company |
| C．to help people judge the mood of dogs |
| D．to help people choose their pet dogs |
Mr Brown was going away for a week. Before he left, he said to his son, "if anyone asks for me, you can tell him that your father has been out for doing something, and will be back in a week, then be sure to ask him to sit down for a cup of tea."
"OK, Dad," said his son. But he was afraid his son couldn’t remember this, he wrote these words down on a piece of paper and gave it to him. His son put it into his small pocket, took it out and looked at it now and then.
Four days passed, but no one came to see his father. The boy thought that there was no man to come and that the piece of paper was of no more use for him, so he burnt it that evening.
The next afternoon, someone knocked at the door. The boy opened it. A man was standing at the door and said, "Where is your father?" The boy put his hand into his pocket at once and looked for the piece of paper. He could not find it. He suddenly remembered he had burnt it, so he shouted, "No more."
The man was very surprised. He asked, "No more? I met your father last week. When did it happen?"
"Burnt yesterday evening."Mr Brown told his son that _____.
| A．he would be away from home for four days |
| B．he would be back in seven days |
| C．he would be back in a month |
| D．he liked a cup of tea |
Mr Brown wrote the words down on ________.
| A．the wall | B．the door |
| C．a piece of paper | D．his son’s pocket |
A man came to visit the boy’s father on ________.
| A．the second day | B．the third day | C．the fourth day | D．the fifth day |
What was burnt? ___________.
The piece of paper B. Mr Smith C. The visitor D. The boy
Farmer John and Farmer Bob were neighbours. For more than 30 years, they had been getting along very well.
Then their good relationship broke. It began with a small thing, then bitter words, and then weeks of silence. One morning Farmer John woke up to find a stream between the two farms. “It must be Bob,” John thought.
Then one day there was a knock on John’s door. He opened it to find a carpenter(木匠) standing at the doorway.
“I’m looking for a few days’ work,” the carpenter said.
“I do have a job for you,” John said. “Look across the stream at that farm. That’s my neighbour Bob. He dug a stream between the two farms. I want you to build a fence—an 8-foot fence. I don’t want to see his place or his face any more. I don’t have such a neighbour!”
The carpenter said, “I think I know what to do, sir, and I’ll be able to do a job that pleases you.”
Farmer John helped the carpenter get the materials(材料) ready and then he was off for the day.
About sunset when the farmer returned, the carpenter had just finished his job. The farmer’s eyes opened wide. There was no fence there at all!
It was a bridge! And the neighbour, Bob, was coming across, with his hand outstretched(伸出). “Hi, John! You’re quite a fellow to build this bridge!”
Then they met in the middle, taking each other’s hands. “I’m terribly sorry for what I have said and done. We should be good to each other.” said Farmer Bob.
Then they turned to see the carpenter, who was ready to go. “No, wait! Stay a few days. I have a lot of other jobs for you,” said Farmer John. “I’d love to stay,” the carpenter said, “but I have more bridges to build.”Just before the carpenter came, John and Bob each other.
| A．didn’t speak to | B．were friendly to |
| C．often fought with | D．never had bitter words with |
Farmer John asked the carpenter to build a fence because .
| A．he wanted to protect his farm | B．he didn’t want to do it himself |
| C．he wouldn’t like to see Bob | D．he wanted to find him something to do |
What does the sentence “You’re quite a fellow to build this bridge!” mean?
| A．John was great to build this bridge. |
| B．John was not good at building bridges. |
| C．John was foolish to build such a bridge. |
| D．John should build the bridge earlier. |
What is the best title for the passage?
| A．What a Big Fence! | B．A Strong Bridge |
| C．Three Kind Men | D．A Fence or a Bridge? |
A man heard that a certain government wanted a clerk, so wrote and asked for the position. But while he was waiting for an answer, a friend of his introduced him to the head of the department, who gave him the job. Several months later, while the man was working in the department, he got a letter that had been sent to him from the place he used to live in. This letter said,
“Dear sir,
We are sorry to have to tell you that we cannot offer work in this department because we do not think that you would be able to do the work successfully.
Your faithfully.”
The man laughed, but when he looked at the letter more carefully, he saw that he had signed it himself.At the beginning of the story the man wanted ____.
| A．to be a clerk in a certain government | B．his friend to introduce him job |
| C．to visit the head of the department | D．to get an answer from the department |
The first paragraph mainly tells us ____.
| A．how the man knew the news that a clerk was needed |
| B．how the man got a job with the help of his friend |
| C．how the man wrote to the department to get the job |
| D．how he was waiting for the answer from the department |
He got a letter that had been sent to him, which means ____.
| A．he himself received the letter |
| B．someone else got it and then didn’t bring it to him |
| C．someone else got it and then brought it to him |
| D．the government sent it to him |
What do you think of the man?
| A．He was too careless. | B．He was very honest. |
| C．He was very clever. | D．He was rather stupid. |
Choose the right order of the events given in the passage.
a. He got a letter one day b. He got a job in the department.
c. The letter told him he was unfit for the job.
d. His friend introduced him to the head.
e. He found he signed the letter himself.
f. He wanted to get a job in the government department.
| A．a,b,c,d,e,f | B．c,b,d,a,f,e | C．f,d,b,a,c,e | D．f,b,a,e,c,f |
Have you ever wondered why birds sing? Maybe you thought that they were just happy. After all, you probably sing or whistle when you are happy.
Some scientists believe that birds do sing some of the time just because they are happy. However, they sing most of the time for a very different reason. Their singing is actually a warning to other birds to stay out of their territory.
Do you know what a “territory” is ? A territory is an area that an animal , usually the male , claims as its own. Only he and his family are welcome there. No other families of the same species are welcome. Your yard and house are your territory where only your family and your friends are welcome. If a stranger should enter your territory and threaten you, you might shout, Probably this would be enough to frighten him away.
If so, you have actually scared the stranger away without having to fight him. A bird does the same thing. But he expects an outsider almost anytime, especially at nesting season. So he is screaming all the time, whether he can see an outsider or not. This screaming is what we call a bird’s song, and it is usually enough to keep an outsider away.
Birds sing loudest in the spring when they are trying to attract a mate and warn others not to enter the territory of theirs. You can see that birds have a language of all their own . Most of it has to do with attracting mates and setting up territories.Some scientists believe that most of the time birds’ singing is actually_____.
| A．an expression of happiness | B．a way of warning |
| C．an expression of anger | D．a way of greeting |
What is a bird’s “territory”?
| A．A place where families of other species are not accepted |
| B．A place where a bird may shout at the top of its voice. |
| C．An area for which birds fight against each other |
| D．An area which a bird considers to be its own |
Why do birds keep on singing at nesting season?
| A．Because they want to invite more friends . |
| B．Because their singing helps frighten outsiders away. |
| C．Because they want to find outsiders around. |
| D．Because their singing helps get rid of their fears. |
Fading beauty
She is widely seen as proof that good looks can last for ever. But, at nearly 500 years of age, time is catching up with the Mona Lisa.
The health of the famous picture, painted by Leonardo Da Vinci in 1505, is getting worse by the year, according to the Louvre Museum (卢浮宫博物馆) where it is housed.
“The thin, wooden panel on which the Mona Lisa is painted in oil has changed shape since experts checked it two years ago,” the museum said. Visitors have noticed changes but repairing the world’s most famous painting is not easy. Experts are not sure about the materials the Italian artist used and their current chemical state (状态).
Nearly 6 million people go to see the Mona Lisa every year, many attracted by the mystery of her smile. “It is very interesting that when you’re not looking at her, she seems to be smiling, and then you look at her and she stops,” said Professor Margaret Livingstone of Harvard University. “It’s because direct vision (视觉) is excellent at picking up detail, but less suited to looking at shadows. Da Vinci painted the smile in shadows.”
However, the actual history of the Mona Lisa is just as mysterious as the smile. Da Vinci himself loved it so much that he always carried it with him, until it was eventually sold to France’s King Francis I in 1519.
In 1911, the painting was stolen from the Louvre by a former employee, who took it out of the museum hidden under his coat. He said he planned to return it to Italy. The painting was sent back to France two years later.
During World War II, French hid the painting in small towns to keep it out of the hands of German forces.
Like many old ladies, the Mona Lisa has some interesting stories to tell.What does the writer mean by “time is catching up with the Mona Lisa”?
| A．The painted woman is not so beautiful any more. |
| B．Ageing is something that affects us all. |
| C．The painting needs repairing. |
| D．At such an old age, she is no longer popular. |
What makes the repair work difficult?
| A．The wooden panel is thin and old. |
| B．No one knows exactly what materials were used to create the painting and how it might respond to treatment. |
| C．The health of the painting is suffering |
| D．Experts can’t agree on how to carry out repairs. |
What makes her smile so mysterious according to Professor Livingston?
| A．The materials the Italian artist used. | B．The way she smiles. |
| C．The way Da Vinci painted the smile. | D．It plays a trick upon the human mind. |