When computer servers operate a complex program, they can get very hot. Cooling the servers can be costly. So researchers asked what would happen if the heat created by the servers could be captured and used?
Data centers of large Internet companies such as Google and Microsoft have thousands of computer servers. As these servers process information, they create large amounts of heat, so they need huge cooling systems, which send the heat into the air.
The Dutch company Nerdalize thinks paying for electricity to operate the servers and then paying again to cool them is a waste of energy. So it developed a device called the e-Radiator, a computer server that also works as a heating source.
Boaz Leupe, the chief executive officer of Nerdalize, says the e-Radiator saves money because companies don’t have to pay to cool their servers. “…The kilowatt hour you are using is used twice — once to heat the home and once to compute the client’s task without the cooling expenses.”
At present five homeowners in the Netherlands are testing the heating device in their homes.
“We compensate the electricity the server uses, and that we can do because of the computer clients on the other side, and, in that way, homeowners actually get heating for free, and computer users don’t have to pay for the expenses of the data center.”
Jan Visser is one of the participants in the year-long experiment. He notices that the amount of heat produced by the e-Radiator depends on the work being done by the computer server. He reveals it cannot be used as the primary source of heat. But he is ready to try it. “If it provides enough warmth, I will be able to use my home’s heating system less, which will save me money.” he added.
Nerdalize says e-Radiators create heat temperatures of up to 55 degrees Celsius. It’s also said that the devices could save users up to $440 in heating costs a year.What can we learn from this passage?
| A．E-Radiator can save homeowners a big sum of money in cooling the computers. |
| B．Google and Nerdalize developed the heating device, e-Radiator. |
| C．E-Radiator has been put into use in the Netherlands. |
| D．The heating device will benefit computer users as well as homeowners. |
According to the passage, what’s Jan Visser’s attitude towards e-Radiator?
| A．Cautious. | B．Positive. | C．Satisfied. | D．Doubtful. |
Where can we most probably read the passage?
| A．In an economic report. |
| B．In a science magazine. |
| C．In an education newspaper. |
| D．In a computer guide book. |
Which of the following can be the best title for the passage?
| A．Money-saving heating device. |
| B．E-Radiator, the primary source of heat. |
| C．Hot computers could be used to heat home. |
| D．Nerdalize developed e-Radiator, a heating system. |
President Clinton was born in the little southern town of Hope, Arkansas, on August 19,1946. But his name was not Bill Clinton. It was William Jefferson Blythe. His mother named his for his father, who had been killed in a car accident a few months before he was born. When Bill was four years old, his mother married Roger Clinton who then legally became Bill’s father. Roger Clinton and Bill’s mother had a son, Roger Jr.
Bill Clinton studies international affairs at Georgetown University in Washington, D. C. He won a Rhodes scholarship to study at Oxford University in Britain. There, he met other students with whom he has continued life-long friendships. One of them is Robert Reich, who was just nominated to be Secretary of Labor. After Oxford, Bill Clinton earned a law degree at Yale University.
In 1973, Bill Clinton became a law professor at the University of Arkansas, but he was too interested in politics to stay at the university. He campaigned for the House of Representatives but was defeated. In 1976, he was elected General for the state of Arkansas, the state government’s chief lawyer.
Two years later, Bill Clinton was elected Governor of Arkansas. He was defeated for re-election after his first two-year term. But he was elected Governor again in 1982. He has been re-elected to that office every two years since then.
Bill Clinton married lawyer Hillary Rodham Rodham in 1975. She kept Rodham as her last name until it became an issue during her husband’s 1980 campaign for governor. Since then, she has been known as Hillary Rodham Clinton. The Clintons have a daughter, Chelsea.
70.We learn that Bill Clinton’s father ________.
| A．died before Bill Clinton was born |
| B．died when Bill Clinton was a few months old |
| C．left his wife after Bill Clinton was born |
| D．was his mother’s second husband |
71.Bill Clinton was elected Governor of Arkansas in ________.
| A．1976 | B．1978 | C．1980 | D．1973 |
72.Hillary Rodham did not change her last name until ________.
| A．she married Clinton |
| B．she gave birth to their daughter |
| C．Clinton campaigned for President |
| D．Clinton was defeated in his campaign for governor |
Welcome to the National Maritime（海洋） Museum！
The National Maritime Museum is the largest of its kind in the world，with over two million items in its collections. Twenty galleries display some of the finest sea affairs in historic buildings，which were formerly a school for the sons of seamen.
Opening times
10：00-17：00 Winter hours
10：00-18：00 Summer hours
Last admission （允许进入）is thirty minutes before closing. Smoking is not allowed in the museum. Eating and drinking are only allowed in the designated areas. Photography and video are not permitted inside the building.
Bookings
Our Central Booking Group handles all group visit enquiries（需求）, from schools, group organizers and tour operators.
Education and Interpretation （解说）
Schools‘ programs operate in term-time. Programs of talks，tours，work-shops，storytelling，living history and interpretation are run throughout the year，especially at weekends and during school holidays.
E-library
Facilities（设备） are provided for electronic access to the museum’s collections. Please ask a member of staff（员工） for directions to the nearest terminals. These facilities are also available from the comfort of your own home.
66.This passage mainly tells us _____ the museum.
| A．the way to get to | B．the purpose to build |
| C．a brief introduction to | D．a detailed description of |
67.Which of the following is certainly forbidden according to the passage？
| A．Trying to enter the museum after 5：00 p.m. |
| B．Taking pictures in front of the museum. |
| C．Talking loudly when you enjoy the collections. |
| D．Eating and drinking wherever you are. |
68.From the passage we can learn that _________.
| A．the museum runs a school and has students of its own |
| B．students can receive different kinds of education here |
| C．part of school education has to be done in the museum |
| D．school programs are only run at weekends and on holidays |
69.It can be inferred from the passage that _______.
| A．the museum is very popular among visitors |
| B．things from ancient times are more attractive |
| C．the most valuable things are displayed in the museum |
| D．the museum is anxious to make more money |
Plants are very important living things. Life could not go on if there were no plants. This is because plants can make food from air， water and sunlight. Animals and man cannot make food from air， water and sunlight. Animals get their food by eating plants and other animals. Therefore animals and man need plants in order to live. This is why we find that there are so many plants around us.
If you look carefully at the plants around you， you will find that there are two kinds of plants： flowering plants and non-flowering plants. Flowering plants can make seeds. The seeds are protected by the fruits. Some fruits have one seed， some have two， three or four， and some have many seeds. But a few fruits have no seeds at all. An example of a fruit without seeds is the banana fruit. Most non-flowering plants do not grow from seeds. They grow from spores（胚芽）。 Spores are very small. Some spores are so small and light that they can float in the air. We may say that spores are quite the same as seeds. When these spores are all on wet and shady places， they usually grow into new plants.
62.The main idea of the first paragraph is that ______.
| A．plants are important for life | B．plants cannot grow without air |
| C．there are many plants in the world | D．we can not live without water |
63.What can we infer（推断） from the passage ？
| A．Of all living things animals are most. | B．Spores are seeds. |
| C．All fruits of flowering plants have seeds. | D．Without plants，man will die out. |
64.What is the meaning of the underlined word?
| A．Kept. | B．Guarded. | C．Prevented. | D．Surrounded |
65.This passage may be taken from______.
| A．a medicine book | B．a novel |
| C．a science magazine | D．an experiment report |
On the coast of Brazil lies its most famous city Rio de Janeiro. Rio is a beautiful pace to visit. It is full of exciting parades, historical architecture and natural beauty.
The most famous time of year in Rio is the spring when the samba schools organize a giant parade of dance, music and costumes. Samba is a type of fast Brazilian music, which is perfect for dancing. The carnival lasts two days and over 20 samba schools perform, a total of 70,000 people in brightly coloured costumes, all dancing and singing! It is a magnificent spectacle and millions of people watch the carnival on television around the world.
Rio de Janeiro is a religious city and it is full of churches. Some, like the former Imperial Church, were built over 400 years ago while others, like the Metropolitan Cathedral, are very modern. The Metropolitan Cathedral was built in 1976 and is so large that 20,000 people can stand inside at one time!
Another important religious site in Rio is the Corcovado hill. On the top of the hill, along with a small church, stands a 30-metre high statue of Jesus with his arms stretched out. From this point you can see every part of the city.
59.Brazilian carnival is.
| A．a type of Brazilian music | B．a parade of 70,000 people dancing |
| C．a parade of millions of people on television | |
| D．the name of a samba school |
60.The Metropolitan Cathedral.
| A．was built 400 years ago | B．is on Corcovado Hill |
| C．is a religious city | D．was built in 1976 |
61.The Corcovado Hill is famous for .
| A．the samba parade | B．the beautiful beaches |
| C．the statue of Jesus | D．the small church |
Visitors from space may have landed on our planet from time to time, maybe hundreds of times during the long, empty ages while Man was still a dream of the far future. Indeed, they could have landed on 90% of the earth as recently as two or three hundreds years ago, and we could never have heard of it. If one searches through old newspapers and records from some certain places, one can find many reports of strange events that could be some explanations about visiting from outer space. A writer, Charles Fort, has made a collection of UFO sightings in his book Lo! One is tempted(引诱) to believe them more than any modern reports, for the simple reason that they happened long before anyone had ever thought of space travel. Yet at the same time, one cannot take them too seriously, for before education on science was popular, even sightings of meteors(流星) and comets(彗星) made people believe the most unbelievable stories, as they still do today.
56.According to the passage, visitors from outer space may have landed on the earth.
| A．long before man had dreamed of it | B．long before there were human beings |
| C．in the last few hundred years | D．after the space travel began |
57.Which of the following statements is true according to the passage?
| A．Charles Fort sighted a lot of UFOs himself. | B．All sightings of UFOs are believable. |
| C．There may be living things on other planets. | D．People have seen visitors from other planets everywhere. |
58.According to the passage,.
| A．UFOs are only seen in recent years | B．UFOs sightings are not new |
| C．UFOs are just meteors and comets | D．UFOs are invented by people |