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 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 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.
71.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
72.The underlined word “intensity” in the passage means .
A.surprise B.worry C.excitement D.interest
73.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
74.The underlined word “they” refers to .
A.the dogs B.the trainers C.the systems D.the researchers
75.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
I shall never forget the night, a few years ago, when Marion J. Douglas was a student in one of my adult-education classes. He told us how tragedy had struck at his home, not once, but twice. The first time he had lost his five-year-old daughter. He and his wife thought they couldn’t bear that first loss; but, as he said, “Ten months later, God gave us another little girl and she died in five days.”
This double bereavement was almost too much to bear. “I couldn’t take it,” this father told us. “I couldn’t sleep, eat, rest or relax. My nerves were entirely shaken and my confidence gone.” At last he went to the doctors: one recommended sleeping pills and another recommended a trip, but neither helped. He said, “My body felt as if it was surrounded in a vice(大钳子), and the jaws of the vice were being drawn tighter and tighter.” The tension of grief(悲伤) --- if you have ever been paralyze
d(使瘫痪) by sorrow, you know what the meant.
“But thank God, I had one child left --- a four-year-old son. He gave me the solution to the problem. One afternoon as I sat around feeling sorry for myself, he asked, ‘Daddy, will you build a boat for me?’ I was in no mood to build a boat; in fact, I was in no mood to do anything. But my son is a persistent fellow! I had to give in. Building that toy boat took me about three hours. By the time it was finished, I realized that those three hours spent building that boat were first hours of mental relaxation and peace that I had had in months! I realized that it is difficult to worry while you are busy doing something that requires planning and thinking. In my case, building the boat had knocked worry out of the ring. So I determined to keep busy.”
“The following night, I made a list of jobs that ought to be done. Scores of items needed to be repaired. Amazingly, I had made a list of 242 items that needed attention. During the last two years I have completed most of them. I am so busy now that I have no time for worry.”
No time for worry! That is exactly what Winston Churchill said when he was working eighteen hours a day at the height of the war. When he was asked if he worried about his huge responsibilities, he said, “I am too busy. I have no time for worry.”The underlined word “bereavement” in the second paragraph refers to _________.
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Marion felt his body as if it was caught in a vice because _________.
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Marion made a list of over 200 items that needed to be repaired because _________.
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At the end of the passage, the author wrote about Winston Churchill in order to ________.
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The holiday is upon us. Finally, after months of study, you have some time to yourself. So, why not read a book? Well, some people will say, "Why bother with books? We have the Internet and other media that offer a lot of more colorful entertainment. Books are history!" But don't be fooled. I'm sure there's still a lot to be said for reading.
One clear reason is that a well-chosen book is a wonderful source of vocabulary, so long as you have a good dictionary, of course. Believe me, it's far easier to get new English words and phrases from a book or an article than it is from the TV or the Internet.
But another more important point is that books give you something that modern media simply can not. The average webpage is picture-heavy and the text is often designed to make it as 
easy to read as possible. While "easy" may be attractive, unfortunately it's of little use for any long-term development of reading skills and the general language level. Because of that, there's still no substitute (替代品) of a book.
But perhaps the best single reason is that simply choosing what you read and doing it independently means that it's something you do by and for yourself. You can choose what you want to read. It's hard work, but somewhere down the line, you'll find that what once seemed like a duty is n
ow a pleasure.How many reasons for reading a book does the author mention in the passage?
| A．Three | B．Two | C．One | D．Four |
According to the passage, we basically need a ________ in reading.
| A．television | B．pencil | C．notebook | D．dictionary |
In the author's opinion, reading on the Internet may_________.
| A．develop long-term reading skills |
B．improve the general language ability |
| C．not take the place of reading books | D．be an effective way of reading |
The passage is written mainly to _________.
| A．share the pleasure of reading books | B．advise readers to read books |
| C．stress the importance of reading online | D．help readers to choose good books |
Moods (心情), say the experts, are feelings that are likely to become fixed, having effects on one’s outlook(way of looking at things) for hours, days or even weeks. That’s great if your mood is a pleasant one, but a problem if you are sad, anxious, angry, or simply lonely.
Perhaps the best way to deal with such moods is to talk them out; sometimes, though, there is no one to listen. Scientists offers a lot of tranquilizers(镇静剂) and anti-anxiety drugs. What many people don’t realize, however, is that scientists have discovered the effectiveness of several non-drug methods to make you free from an unwanted mood. These can be just as useful as drugs, and have the added benefit of being nonpoisonous(无毒的). So next time you feel out of sorts, don’t head for the drug store―try the following method.
Of all the mood-changing self-help techniques, aerobic exercises (有氧运动) seem to be the best cure for a bad mood. “If you could keep the exercise, you’d be in high spirits,” says Kathryn Lance, author of Running for Health and Beauty.
Researchers have explained biochemical and various other changes that make exercises compare favorably to drugs as a mood-raiser. Physical work such as housework, however, does little. The key is aerobic exercises – running, cycling, walking, swimming, or other repetitive and sustained activities that increase the heart rate and circulation(循环), and improve the body’s use of oxygen. Do them for at least 20 minutes a time, three to five times a week.It can be inferred from the passage that __________.
| A．when one is in a bad mood, he or she must not work very well. |
| B．the best way to overcome a bad mood is to talk to oneself |
| C．some drugs are more effective than physical exercises |
| D．taking drugs is at risk of being poisonous |
The phrase "feel out of sorts", as is used in the second paragraph, could be best replaced by ____________.
| A．put things in order | B．are in a bad mood |
| C．search for tranquilizers | D．want a mood-raiser |
Which of the following best describes the organization of this passage?
| A．An exercise and its importance are explained |
| B．A problem is examined and solutions are given |
| C．Two different views of a problem are presented |
| D．Recent developments in medicine are described |
Some people think that as more and more people have televisions in their homes, fewer and fewer people will buy books and newspapers. Why read an article in the newspaper, when the TV news can bring you the information in a few minutes and with pictures? Why read the life story of a famous man, when a short television program can tell you all that you want to know?
Television has not killed reading, however. Today, newspapers sell in very large numbers. And books of every kind are sold more than ever before. Books are still a cheap way to get information and enjoyment. Although some books with hard covers are expensive, many books are printed today as paper books (平装本), which are quite cheap. A paperback collection of short stories, for example, is always cheaper than an evening at the cinema or the theater, and you can keep a book for ever and read it many times.
Books are a wonderful provider of knowledge and pleasure and some types of books should be in every home. Every home should have a good dictionary. A good encyclopedia (百科全书), though expensive, is useful, too, because you can find information on any subject. Besides, you can have such books as history books., science textbook, cookbooks, and collections of stories and poems. Then from time to time you can take a book of poems off your shelves and read the thoughts and feelings of your favorite poets. It can be inferred from the passage that ________.
| A．TV programs are a main provider of knowledge |
| B．cinemas are the best choice in getting information |
| C．reading is a cheap way of learning and having fun |
| D．newspapers are an expensive way to enjoy oneself |
What does the sentences “Television has not killed reading, however ” underlined in the second paragraph suggest?
| A．People only need reading, though. | B．Reading is still necessary today. |
| C．Reading is more fun than television. | D．Watching television doesn’t help reading. |
Which of the following is true according to the passage?
| A．Fewer and fewer people will buy books. |
| B．A good dictionary should be kept in every home. |
| C．Books with hard covers sell better than paperbooks. |
| D．More people like TV programs about famous men. |
People living in the UK take quite a few holidays abroad and in this country each year．Choices made about where to go, how to get there and what to do while there can either benefit or harm the environment．
While on holiday
Many of the things you can do to he greener on holiday will be the same things you can do at home—but there arc also sonic extra things too, like avoiding gifts made from endangered plants and animals．Here are some suggestions:
●Making the most of locally produced food and drink, and local activities and attractions will support people in the area you are visiting and reduce the need for further environmental influence from transport;
●Switching off any air conditioning, heating and lights will help reduce climate change effect;
●Save water—some countries suffer from water shortages and saving water can help avoid damage to our natural habitats （栖息地）.
Endangered species （物种）
Some gifts and foods available in some countries can be made from endangered plants or animals．Check before you buy, but if you doubt, avoid animal and plant gifts．More details of the types of products to avoid and illegal trade hotspots can be found on the Souvenir Alert webpage．
Making a positive contribution to the place you are visiting
There are ways in which your holiday can help support local people and the environment;
●There are many opportunities to volunteer and help with projects that conserve and improve natural habitats;
●When you are away, or if you are looking for somewhere to visit, you can support projects or attractions which protect wildlife, such as nature reserves and conservation projects．According to the passage, we can ____ to help reduce climate change effect.
| A．make good use of water | B．buy local food and drink |
| C．save electricity | D．go around on foot |
We can infer from the passage that ____．
| A．it is not easy for people to travel abroad |
| B．not everyone can tell an illegal souvenir |
| C．green holidays have been accepted by people |
| D．volunteer work is a must for protecting natural habitats |
The passage is mainly about _________
| A．travel dos and don'ts | B．the harm done to the environment |
| C．greener choices for holiday | D．tips on protecting endangered species |