Electrical devices(仪器)could soon use power made by human energy. Scientists say they have developed an experimental device that produces electricity from the physical movement of a person walking , British scientist Max Donelan and other scientists in Canada and the United States developed the device.
The device connects to a person’s knee. As the person walks ,the device captures energy each time the person slows down. To do this ,the device helps with the slowing sown movement of the leg, the movements of the walking person push parts of a small machine that produces electricity. Using the device, an adult walking quickly could produce thirteen watts of electricity in just a minute. Donelan says walking at that speed could produce enough power to operate a laptop computer for six minutes.
There are several possible uses for the device. Developers say it could help people who work in areas without electricity to operate small computers. The device could also he used in hospitals to operate heart pacemakers(起博器), it could even be used to assist in the movement of robotic arms and legs.
The experimental version of the device weighs about one and a half kilograms, but it is too costly for most people to buy, but the researchers hope to make a lighter, less costly version, An improved version should be ready in one year.
The developers hope the device will one day help developing countries; nearly twenty five percent of people around the world live without electric power.
A similar product was invented in 2005 by Larry Rome of the University of Pennsylvania, He created a bag carried on a person’s back that also produces power from walking. The knee device does not produce as much electricity as the bag, but the bag requires the walker to carry a load of twenty to thirty kilograms.The second paragraph mainly talks about
| A．who developed the device |
| B．how the device works |
| C．several possible uses for the devices |
| D．how much electricity the device can produce |
What is the disadvantage of the experimental version of the device?
| A．It is too heavy for the walker to bear |
| B．It is too complex for people to use |
| C．It is too expensive for most people to afford |
| D．It will slow down one’s walking speed |
Compared with the device designed by Larry Rome, this new device
| A．produces power without adding more loads to the walker |
| B．can produce more power in a much shorter time |
| C．needs to be equipped with a battery |
| D．can help the walker walk faster |
From the passage, we can learn that the electrical device can
| A．help housewives operate the washing machine |
| B．make it much easier for us to go online |
| C．produce more electricity than that invented by Larry Rome |
| D．be applied in medical fields to operate heart pacemakers |
What would be the best title for the passage
| A．First device powered by walking will soon be on the market |
| B．Advanced technology brings in a new way to operate heart pacemakers |
| C．Device gives new meaning to the idea of power walking |
| D．Human energy will become a main source of electricity |
According to sociologists(社会学家), every modern industrial society has some form of social stratification(阶层). Class, power and status are important in deciding people's rank in society.
Class means a person's economic position in society. A commonly used classification is lower class, middle class and upper class. While sociologists disagree on how these terms should be exactly defined, they do describe societies like the United States quite well. One study shows that 53% of Americans belong to the lower class, 46% the middle class, and 1% the upper class. Interestingly, a surgeon earning $500,000 a year and a bus driver earning $50,000 a year both regard themselves as the middle class!
Power refers to the amount of control a person has over other people. Obviously, people in positions of great power (such as governors) exercise(行使)big power, but people who take orders from others have less power. Power and class do not always go hand in hand, however. For example, the governor of a state has great power, but he or she may not belong to a corresponding (相应的)economic class. Generally, however, there is a relationship between power and class. To our knowledge, there aren't too many people who aren't millionaires in the U．S. Senate!
Status is the honor or respect attached to a person's position in society. It can also be affected by power and class, but not necessarily so. For example, a university professor may have a high status but not belong to a high social class or have a lot of power over others.What can we learn about “the middle class” from Paragraph 2?
| A．People earning $50,000 a year belong to the middle class. |
| B．Nearly half Americans belong to the middle class. |
| C．People generally consider bus drivers as the middle class. |
| D．Sociologists have a clear definition of the middle class. |
According to the text, we know that ________.
| A．Power and class do not always correspond with each other |
| B．Status refers to a person's economic position in society |
| C．People with high status have a lot of control over others |
| D．Class is less important in deciding a person's social rank |
Which of the following shows the structure of the whole text?
China is a land of bicycles. At least it was back in 1992 when I traveled the country. Back then everyone seemed to be riding a bicycle. Millions of them, all black. Cars were rare. Yet since my arrival in Beijing last year, I've found the opposite is true. There are millions of cars. However, people still use their bicycles to get around. For many, it's the easiest and cheapest way to travel today. Bicycles also come in different colors—silver, green, red, blue, yellow, whatever you want.
It's fun watching people biking. They rush quickly through crossroads, move skillfully through traffic, and ride even on sidewalks(人行道). Bicycles allow people the freedom to move about that cars just can't provide.
Eager to be part of this aspect of Chinese culture, I decided to buy a bicycle. Great weather accompanied my great buy. I immediately jumped up on my bicycle seat and started home.
My first ride home was orderly(守秩序的). To be safe, I stayed with a “pack” of bikers while cars on the streets came running swiftly out of nowhere at times. I didn't want to get hit. So I took the ride carefully.
Crossing the streets was the biggest problem. It was a lot like crossing a major highway back in the United States. The streets here were wide, so crossing took time, skill and a little bit of luck.
I finally made it home. The feeling on the bicycle was amazing. The air hitting my face and going through my hair was wonderful. I was sitting on top of the world as I passed by places and people. Biking made me feel alive.According to the author, why are bicycles still popular in China today?
| A．Because they are traditional and safe. |
| B．Because they are convenient and inexpensive. |
| C．Because they are colorful and available. |
| D．Because they are fast and environment friendly. |
The author decided to buy a bicycle because he intended ________.
| A．to ride it for fun |
| B．to use it for transport |
| C．to experience local culture |
| D．to improve his riding skills |
How did the author feel about his street crossing?
| A．It was boring. | B．It was difficult. |
| C．It was lively. | D．It was wonderful. |
Which of the following best describes the author's biking experience?
| A．The author enjoyed showing off his biking skills. |
| B．The author was annoyed by the air while riding. |
| C．The author was praised by the other bikers. |
| D．The author took great pleasure in biking. |
 Joshua, Helmut, and Bethlehem Michelle O. Donovan ISBN 9781462058679 Life is not easy for nineyearold Joshua during World War II. Because of his family's Jewish background, they are sent to live in the concentration camps (集中营). Scared and alone, Joshua one day makes friends with a little mouse he calls Bethlehem who becomes his closest friend. |
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 Encourage Me! Inspirational Poetry Gloria Coykendall ISBN 9781412027854 It is an easytoread collection of poems originally written to encourage in faith and to be a cure for chronic depression(长期抑郁) ... cure to strengthen identity and purpose. |
 More Things in Heaven Bill Bosworth ISBN 9780595433582 In his More Things in Heaven, Bill Bosworth presents the highlights of his 83 years of life, including his trips to India and the study of the writings of several great spiritual leaders. More Things in Heaven will appeal to anyone who insists on finding the deepest meaning for their existence based on their own experience. |
 Seeking the Edge Dr. Joseph L. Rose ISBN 9781462031795 Seeking the Edge provides the tools and techniques to find that edge in one's life—driving readers to achieve success whether in your current job, finding a new job, in education, family, or even hobbies. |
 Creation or Evolution Michael Ebifegha ISBN 9781450289023 Were humans created, or did they evolve? How old is the Earth? The debate between science and religion continues to be heated. In Creation or Evolution, Michael Ebifegha examines these two opposed world views within the structure of empirical(实证的) science. |
Who wrote the story about a little boy and a little mouse?
| A．Bill Bosworth. | B．Michelle O. Donovan. |
| C．Dr. Joseph L. Rose. | D．Gloria Coykendall. |
The ISBN for the book of poems is ________.
| A．9781462031795 | B．9781412027854 |
| C．9780595433582 | D．9781462058679 |
What kind of readers will probably like reading More Things in Heaven?
| A．Those who are searching for the meaning of life. |
| B．Those who are trying to be spiritual leaders. |
| C．Those who study the art of writing. |
| D．Those who like traveling abroad. |
Which of the following books explores the origin of humans?
| A．Seeking the Edge. |
| B．Creation or Evolution. |
| C．Joshua, Helmut, and Bethlehem. |
| D．More Things in Heaven. |
When 19yearold Sophia Giorgi said she was thinking of volunteering to help the MakeAWish Foundation (基金会)，nobody understood what she was talking about. But Sophia knew just how important MakeAWish could be because this special organization had helped to make a dream come true for one of her best friends. We were interested in finding out more, so we went along to meet Sophia and listen to what she had to say.
Sophia told us that MakeAWish is a worldwide organization that started in the United States in 1980. “It's a charity (慈善机构)that helps children who have got very serious illnesses. MakeAWish helps children feel happy even though they are sick, by making their wishes and dreams come true，” Sophia explained.
We asked Sophia how MakeAWish had first started. She said it had all begun with a very sick young boy called Chris, who had been dreaming for a long time of becoming a policeman. Sophia said lots of people had wanted to find a way to make Chris's dream come true，so with everybody's help, Chris, only seven years old at the time, had been a “policeman” for a day. “When people saw how delighted Chris was when his dream came true, they decided to try and help other sick children too, and that was the beginning of MakeAWish，”explained Sophia.
Sophia also told us the Foundation tries to give children and their families a special, happy time. A MakeAWish volunteer visits the families and asks the children whatever they would wish for if they could have anything in the world. Sophia said the volunteers were important because they were the ones who helped to make the wishes come true. They do this either by providing things that were necessary, or by raising money or helping out in what way they can.Sophia found out about MakeAWish because her best friend had ________.
| A．benefited from it | B．volunteered to help it |
| C．dreamed about it | D．told the author about it |
According to Sophia, MakeAWish ________.
| A．is an international charity |
| B．was understood by nobody at first |
| C．raises money for very poor families |
| D．started by drawing the interest of the public |
What is said about Chris in Paragraph 3?
| A．He has been a policeman since he was seven. |
| B．He gave people the idea of starting MakeAWish. |
| C．He wanted people to help make his dream come true. |
| D．He was the first child MakeAWish helped after it had been set up. |
Which of the following is true about MakeAWish volunteers?
| A．They are important for making wishes come true. |
| B．They try to help children get over their illnesses. |
| C．They visit sick children to make them feel special. |
| D．They provide what is necessary to make MakeAWish popular. |
Homestay provides English language students with the opportunity to speak English outside the classroom and the experience of being part of a British home.
What to Expect
The host will provide accommodation and meals. Rooms will be cleaned and bedcovers changed at least once a week. You will be given the house key and the host is there to offer help and advice as well as to take an interest in your physical and mental health.
Accommodation Zones
Homestays are located in London mainly in Zones2, 3 and 4 of the transport system. Most hosts do not live in the town centre as much of central London is commercial and not residential(居住的). Zones 3 and 4 often offer larger accommodation in a less crowded area. It is very convenient to travel in London by Underground.
Meal Plans Available
♢Continental Breakfast
♢Breakfast and Dinner
♢Breakfast, Packed Lunch and Dinner
It’s important to note that few English families still provide a traditional cooked breakfast. Your accommodation includes Continental Breakfast which normally consists of fruit juice, cereal（谷物类食品），bread and tea or coffee. Cheese, fruit and cold meat are not normally part of a Continental Breakfast in England. Dinners usually consist of meat or fish with vegetables followed by dessert, fruit and coffee.
Friends
If you wish to invite a friend over to visit, you must first ask your host’s permission. You have no right to entertain friends in a family home as some families feel it is an invasion of their privacy.
Self-Catering Accommodation in Private Homes
Accommodation on a room-only basis includes shared kitchen and bathroom facilities and often a main living room. This kind of accommodation offers an independent lifestyle and is more suitable for the long-stay student. However, it does not provide the same family atmosphere as an ordinary homestay and may not benefit those who need to practise English at home quite as much.The passage is probably written for________.
| A．hosts willing to receive foreign students |
| B．English learners applying to live in English homes |
| C．travellers planning to visit families in London |
| D．foreigners hoping to build British culture |
Which of the following will the host provide?
| A．Physical training. | B．Medical care. |
| C．Free transport. | D．Rooming cleaning |
What can be inferred from Paragraph3?
| A．The business centre of London is in Zone 1 |
| B．Zone 4 is more crowded than Zone 2. |
| C．Hosts dislike travelling to the city centre. |
| D．Accommodation in the city centre is not provided. |
Why do some people choose self-catering accommodation?
| A．To experience a warmer family atmosphere. |
| B．To enrich their knowledge of English. |
| C．To enjoy much more freedom.. |
| D．To entertain friends as they like |
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