Pupils remember more and behave better when 3D images are used in lessons，research suggests．They are quicker to learn and absorb new concepts，and display higher levels of concentration．
Professor Anne Bamford，of the University of the Arts，London， studied the effectiveness of 3D content in 15 schools across seven countries，including the UK．Pupils in 3D classes can remember more than those in the 2D classes after four weeks，improving test scores by an average of 1 7 percent compared with eight percent for 2D lessons．They gave more detailed answer to the tasks and were more likely to think in 3D, using hand gestures and mime(模仿动作) to answer the test questions successfully．
The teachers commented that the pupils in the 3D groups had deeper understanding，increased attention span．more motivation and higher engagement in the lessons．
Children are used to 3D with the rise of computer games that use the technology—90 percent of those in the study had seen a 3D film．Schools would need 3D—enabled projectors(投影仪)，laptops with good picture capabilities，3D software and glasses for children to introduce animations(动作) into classrooms．
But Danny Nicholson，an educationist，said the technology would be impractical to use in schools and could be costly．He said，“While I think the idea of 3D technology is very interesting， I worry that 3D is a bit of an expensive gimmick(小玩意儿)．There are a few cases where a true 3D image might help，but most of the time，good 2D models that can be moved would be just as effective．”
In the US，one school district in Colorado is already in the process of having 1．000 3D projectors fixed in classrooms．And the University of Caledonia．which carries out scientific research into the Lake Tabon Basin．has used 3D presentations with Grade Six pupils．Those who watched the 3D presentations were more engrossed and reported a general increase in their interest in science compared with students who watched the 2D version．What is the main idea of the first three paragraphs?
| A．There are slight differences between 3D and 2D images． |
| B．Pupils perform better when 3D images are used in classes． |
| C．Schools have difficulties in making full use of 3D technology． |
| D．3D technology is always more effective than 2D technology． |
Danny Nicholson holds the view that 3D_____.
| A．is of no help in classes |
| B．has a bright future in classes |
| C．is more practical than 2D models |
| D．may not be affordable for schools |
What can we learn from the last paragraph?
| A．3D technology will replace 2D models in the future． |
| B．Many pupils are now more Interested In science than before． |
| C．Teachers will use the 3D technology through specific training． |
| D．3D will soon be put into use in one school district in Colorado． |
The underlined word “engrossed” in the last paragraph means_____.
| A．absorbed | B．annoyed |
| C．relaxed | D．confused |
As the pace of life continues to increase, we are fast losing the art of relaxation. Once you are in the habit of rushing through lift, being on the go from morning till night, it is hard to slow down. But relaxation is essential for a healthy mind and body.
Stress is a natural part of everyday life and there is no way to avoid it. In fact, it is not the bad thing it is often supposed to be. A certain amount of stress is vital to provide motivation and give purpose to life. It is only when the stre
ss gets out of
control that it can lead to poor performance
and ill health.
The amount of stress a person can withstand depends very much on the individual. Some people are not afraid of stress, and such characters are obviously prime material for managerial responsibilities. Others lose heart at the first signs of unusual difficulties. When exposed to stress, in whatever form, we react both chemically and physically. In fact we make choice between "figh
t" or "flight" and in more primitive days the choice made the difference between life or death. The crises we meet today are unlikely to be so extreme, but however little the stress is, it involves the same response. It is when such a reaction lasts long, through continued exposure to stress, that health becomes endangered. Such serious conditions as high blood pressure and heart disease have established links with stress. Since we cannot remove stress from our lives (it would be unwise to do so even if we could), we need to find ways to deal with it.People are finding less and less time for relaxing themselves because_____.
| A．they do not know how to enjoy themselves |
| B．they do not believe that relaxation is important for health |
| C．they are travelling fast all the time |
| D．they are becoming busier with their work |
According to
the writer, the most important character for a good manager is his ________.
| A．not fearing stress | B．knowing the art of relaxation |
| C．high sense of responsibility | D．h aving control over performance |
Which of the following statements is true?
| A．We can find some ways to avoid stress. |
| B．Stress is always harmful to people. |
| C．It is easy to change the habit of keeping oneself busy with work. |
| D．Different people can withstand different amounts of stress. |
In the last sentence of the passage, "do so " refers to ______.
| A．"expose ourselves to stress" |
| B．"find ways to deal with stress" |
| C．"remove stress from our lives" |
| D．"established links between diseases and stress" |
Nuclear radiation （核辐射）has a certain mystery, partly because it cannot be detected （探测）by human senses. It can’t be seen or heard, or touched or tasted, even though it may be all around us. There are other things like that. For example, radio waves are all around us but we can’t detect them or sense them without a radio receiver. Similarly, we can’t sense radioactivity without a radiation detector. But unlike common radio waves, nuclear radiation is not harmless to human beings and other living things.
At very high levels, radiation can kill an animal or human being at once by killing plenty of cells in important organs(器官). Even the lowest levels can do serious damage. There is no level of radiation that is completely safe. If the radiation does not hit anything important, the damage may not be serious. This is the case when only a few cells are hit, and when they are killed at once. Your body will replace the dead cells with healthy ones. But if the few cells are only damaged, and if they reproduce themselves, you may be in trouble. They reproduce themselves in an unusual way. They can grow into cancer. Sometimes this does not show up for many years.
This is another reason for some of the mystery about nuclear radiation. Serious damage can be done without the knowledge of the person at the time that damage has occurred. A person can be irradiated(放射治疗) and feel fine, then die of cancer five, ten, or twenty years later as a result. A child can be born weak or easy to get serious illness as a result of radiation absorbed by its grandparents.According to the passage, the danger of nuclear power lies in.
| A．nuclear mystery | B．radiation detection |
| C．radiation level | D．nuclear radiation |
Radiation can lead to serious trouble even at the lowest level.
| A．when it kills a few cells |
| B．because the killed cells can’t be replaced |
| C．if it damages a few cells |
| D．unless the damaged cells can reproduce themselves |
What does the author want to tell us?
| A．Radiation can hurt us. | B．Radiation is a subject scientists work on. |
| C．Radiation is a mystery. | D．Radiation is the source of cancer. |
Most young people enjoy some form of physical activity. It may be walking, cycling, or swimming, or in winter, skating or skiing. It may be games of football, hockey, golf, or tennis. It may be mountaineering.
Those who have a passion for climbing high and difficult mountains are often looked upon with astonishment. Why are men and women willing to suffer cold and hardship, and to take risks on high mountains? This astonishment is caused probably by the difference between mountaineering and other forms of activity to which men give their relaxation.
Mountaineering is a sport and not a game. There are no man-made rules, as there are for such games as golf and football. There are, of course, rules of a different kind which it would be dangerous to ignore, but it is this freedom from man-made rules that makes mountaineering attractive to many people. Those who climb mountains are free to use their own methods.
If we compare mountaineering and other more familiar sports, we might think that one big difference is that mountaineering is not a “team game”. We should be mistaken in this. There are, it is true, no “matches” between “teams” of climbers, but when climbers are on a rock face linked by a rope on which their lives may depend, there is obviously teamwork.
The mountain climber knows that he may have to fight forces that are stronger and more powerful than man. He has to fight the forces of nature. His sport requires high mental and physical qualities.
A mountain climber continues to improve in skill year after year. A skier (滑雪者) is probably past his best by the age of thirty, and most international tennis champions are in their early twenties. But it is not unusual for a man of fifty or sixty to climb the highest mountains in Alps. They may take more time than younger men, but they probably climb with more skill and less waste of effort, and they certainly experience equal enjoyment. The main difference between a sport and a game lies in .
| A．activity | B．uniform | C．rules | D．skills |
Mountaineering can be called a team sport because .
| A．mountaineers depend on each other while climbing |
| B．teams compete against each other |
| C．it is an Olympic event |
| D．there are five climbers on each team |
Which of the following might be the best title?
| A．How to Climb High Mountains | B．Mountain Climbers |
| C．Challenging Sports Activities | D．Mountaineering |
A well-known manufacturer of weighing machines produced a new model.
The machine had a computer inside it, and this computer could do wonderful things: it could weigh people very accurately; it could tell them their weight in their own language; and it could tell them what they should eat to reduce their weight.
The manufacturer decided to try out his machine before he sold it to the shops.
He looked around for a good place to put it and finally decided on an airport. There were always people at an airport from many different countries.
The first person to use the machine was an Italian woman. She stood on the machine, put a coin in and waited to hear her weight.
The machine took only a second or two to weigh her, decide on her nationality and the language she spoke, and figure out what kind of food she should eat.
“Good morning, madam,” it said in perfect Italian. “Your weight is 72 kilos, three more than it should be for a woman of your height, age and nationality. This is because you have been eating too much spaghetti. I suggest you eat more fruit and vegetables. Please have a nice day”.
The second person to use the machine was a Chinese girl. She stood on the machine, put a coin in and waited to hear her weight.
“Good morning, Miss," the machine said in perfect Chinese. "Your weight is 38 kilos, exactly the correct weight for your height, age and nationality. Continue to eat what you are eating. Please have a nice day.”
The third person to use the machine was a huge Australian woman. She walked up to the machine and looked at it for a long time. At last she found the courage to stand on the machine and put a coin in. The machine spoke immediately.“Good morning. Will one of you ladies please get off?” What could the computer do?
| A．Weigh and talk to people. | B．Translate information. |
| C．Give them diet pills. | D．Make them lose weight. |
What did the machine say to the Italian woman?
| A．She was a little too light. | B．She was a little too heavy. |
| C．She disliked spaghetti. | D．She couldn’t speak Italian. |
What did the machine say to the Chinese woman?
| A．She should eat more. | B．She could speak Chinese. |
| C．She would have a nice day. | D．She was fine. |
What did the machine suggest about the Australian woman?
| A．She was unwell. | B．She was courageous. |
| C．She was too heavy. | D．She had dieted well. |
Whenever the sun dropped and the blue sky came up, my father and I used to climb the mountain near my house. Walking together, my father and I used to have a lot of conversations through which I learned lessons from his experiences. He always told me, “You should have goals like climbing the mountain.” Without the mountain-climbing that we both enjoyed . We couldn’t have enough time to spend together because my father was very busy. I really got a lot from mountain-climbing. It gave me time to talk with my father and to be in deep thought as well as develop my patience (耐力).
Once we climbed a very high mountain. It was so challenging for me because I was only ten years old. During the first few hours of climbing . I enjoyed the flowers and trees, and the birds’ singing, but as time passed, I got a pain in both of my legs. I wanted to quit climbing. In fact, I hated it at that mountain, but my father said to me, “You can always see a beautiful sky at the top of the mountain, but you can’t see it before you reach the top. Only there at the top, can you see all of the nice things, just like in life.”
At that time, I was too young to understand his words. But later after that, I got knew hope and confidence. I found myself standing at the top of the sky, which was as clear as crystal (水晶). The passage tells us that mountain-climbing was _____for Father and Son.
| A．hard | B．enjoyable | C．painful | D．comfortable |
The word “quit” in the passage means “______”.
| A．carry on | B．put off | C．give up | D．pick up |
Which of the following is the closest (最接近的) in meaning to the father’s words in the second paragraph?
| A．You will get all you need at the top of the mountain. |
| B．The sky is always as clear as crystal. |
| C．You can find life is full of nice things. |
| D．Never give up half-way. |
We can infer (推断) from the last paragraph that ______.
| A．the writer was very successful in his life. |
| B．the writer reached the top of the mountain. |
| C．thought the writer was young, he could understand his father. |
| D．the writer used to stop half-way when he climbed the mountain. |
The best title (题目) for the passage is “______”.
| A．Reaching the Top of the Mountain | B．Standing at the Top of the Mountain |
| C．Conversations between Father and Son | D．How to Get to the Top of the Mountain |