In summer, millions of people will head for the beach．And while the ocean can be a great place to swim and play, it may also be useful in another way．Some scientists think that waves could help make electricity．
“Have you ever been on a surfboard or boat and felt yourself being lifted up by a wave? Or have you jumped in the water and felt the energy as waves crashed over you?” asked Jamie Taylor of the Wave Energy Group at the University of Edinburgh in Scotland．“There is certainly a lot of energy in waves．”
Scientists are working on using that energy to make electricity．
Most waves are created when winds blow across the ocean．“The winds start out by making little ripples (波纹) in the water, but if they keep on blowing , those ripples get bigger and bigger and turn into waves, ”Taylor said．“Waves are one of nature’s ways of picking up energy and then sending it off on a journey．”
When waves come towards the shore, people can set up dams or other barricades to block the water and send it through a large wheel called a turbine (涡轮) ．The turbine can then power an electrical generator (发电机) ．
The United States and a few other countries have started doing research on wave energy , and it is already being used in Scotland．
The resource is huge．We will never run out of wave power, besides, wave energy does not create the same pollution as other energy sources, such as oil and coal．
Oceans cover three quarters of the earth’s surface．That would make wave power seem perfect for creating energy around the world．There are some drawbacks, however．
Jamie Taylor said that wave power still cost too much money．He said that its effects on animals in the sea were still unknown．Besides, wave power would get in the way of fishing and boat traffic．
With more research, however, “many of these problems might be overcome,” Taylor said．“Demand for energy to power our TVs and computers, drive our cars, and heat and cool our homes is growing quickly throughout the world．Finding more energy sources is very important, for traditional sources of energy like oil and gas may run out some day．”
In the future, when you turn on a light switch, an ocean wave could be providing the electricity!We can infer from the passage that ______．
| A．finding new energy sources like wave energy is important |
| B．wave energy is a resource that will never run out and is used all over the world |
| C．wave power is perfect for creating energy around the world |
| D．wave power doesn’t create any pollution |
The underlined word “drawbacks” probably means ______．
| A．regrets | B．adventures | C．disadvantages | D．difficulties |
What can be the best title for the passage?
| A．How to Get Electricity by Waves． |
| B．A Huge Resource of Energy． |
| C．Can Waves Make Electricity? |
| D．The Disadvantages of Wave Energy． |
US researchers have found traces of an anc
ient lake on Mars recently, increasing hopes of discovering evidence that billions of years ago the Red planet hosted life.
The lake, which dates back some 3.4 billion years, appears to have covered as much as 80 square miles and was up to 1,500 feet deep, said the team from the U
niversity of Colorado.
“This is the first clear evidence of shorelines on the surface of Mars,”said Boulder’ s research associate, Gaetano Di Achille, in a study published in the latest edition of Geophysical Research Letters.
“The identification of the shorelines and accompanying geological evidence allows us to calculate the size and volume of the lake, which appears to have formed about 3.4 billion years ago.”
Analysi
s of the images has shown the water carved out the canyon (溪谷) in which it was found, which then opened out into a valley depositing (使淤积) sediment (沉积) which formed a delta (三角洲).
“Finding shorelines is a great discovery to us,” said assistant professor Brian Hynek, adding it showed the lake existed at a time when Mars was thought to have been cold and dry.
Scientists believe the oldest surfaces on Mars formed during the wet and warm era known as the Noachan epoch, about 4.1 billion to 3.7 billion years ago.
The newly discovered lake is believed to date from the Hesperian era and postdates the end of the warm and wet period on Mars by 300 million years, according to the study.
Scientists believe deltas next to the lake may well hold secrets about past life on Mars as such places on Earth have become the natural deposits of organic carbon and other markers of life.The size of the lake found on Mars is ______.
| A．80 square miles | B．1,500 square miles |
C．3.4 billion square miles |
D．300 million square miles |
When the lake existed, the weather on Mars was ____.
| A．hot and wet | B．wet and warm | C．cold and dry | D．cold and wet |
Why do scientists think deltas near the lake may hold secrets about past life on Mars?
A．Because similar places on Earth have become natural deposits of marker s of life. |
| B．Because someone has put secrets about past life on Mars there. |
| C．Because past life has been found in other deltas on Mars. |
| D．Because some people are said to have already seen life marks there. |
Which of the following statements is NOT true according to the passage?
| A．The Noachan epoch was a wet and warm era. |
| B．The lake might have existed 3.4 billion years. |
| C．The discovery can’ t fully prove that the Mars once hosted life. |
| D．The lake traces prove that there exists life on Mars now. |
Social Program: 22nd—26th August 2011
Monday Evening—Study Centre or Sports Park
Study Center: The school will be open from 7.45 pm to 9.35pm.
Sports Park: Aerobics, Swimming or Fitness Training (with a Fitness Card).
Tuesday Evening—Cinema
Cinema: To get your free ticket, you must write down which film you wou
ld like to watch. See the leaflet on the board for this evening’s UCI Cinema program. For more information about the films, visit the UCI website www.uci.co.uk or see the film section in this week’s Time Out magazine.
Wednesday Evening—Study Centre of Tennis Coaching
Study Center: The school will be open from 7.35 pm to 9.35 pm.
Tennis Coac
hing: With former Junior Wimbledon tennis player Stuart Silvester.
Thursday Evening—Chinese Party
Chinese Party: Come along and enjoy the hospitality of the Chinese students! You can try delicious Chinese food and learn about Chinese traditions. Please note that you should eat your evening meal at your home-stay, as the food is a taster and not a full meal. Non alcoholic and alcoholic drinks will be served.
Friday afternoon—Historical Walking Tour or Sports Parks
Historical Walking Tour: This afternoon you will have the opportunity to visit parts of Norwich you may have otherwise missed, with a professional guide. In medieval times Norwich was the second most important city in England and this afternoon you can learn some of the interesting history of our fine city.
Sports Park: Badminton, Basketball, Fitness Training (with a Fitness Card), Football, Squash, Swimming or Volleyball.
Please sign early if you wish to play any of the sports listed above.You can do all the following things during the weekday except ___________.
| A．going to the cinema | B．going to the Chinese party |
| C．taking a historical walking tour | D．taking a mountain climbing tour |
The passage may probably be found ___________.
| A．in a school’s bulletin board | B．in a school’s text book |
| C．in a latest newspaper | D．in a fashion magazine |
From the passage we know that ___________.
| A．students have to pay for the film tickets |
| B．some of the students in the school are Chinese |
| C．Norwich is the second largest city in Britain |
| D．the school is closed during the daytime |
From the passage we can infer that __________.
| A．students in the school can have access to computers |
| B．students in the school only have morning classes |
| C．the school often serves Chinese food to students |
| D．every Friday afternoon the students will have a tour |
BEIJING—Seven prestigious universities in China announced Sunday that they would begin using the same independent exam —besides the national one —to test students hoping to gain entrance to them in 2011.
The seven are Peking University, Beihang University, Beijing Normal University, Nankai University, Fudan University, Xiamen University and Hong Kong University.
Students who want to gain entrance to any of the seven universities will only have to sit one independent exam, according to the joint announcement.
“This will help lighten tile students’ load, otherwise they must take several exams for different universities,”said the announcement.
Passing the exam could result in more than one interview chance, giving the students more opportunities to choose their favorite universities.
China’ s college entrance exam system is undergoing reform as universities aim to select students based on independent criteria rather than just using the results of the national exam.
In 2003, Peking
University and another 21 universities were allowed to pilot (试用) the reform by using their own criteria to independently select five percent of their students.
Now nearly 80 universities across the country have the right to select talented students based on their own exams.
Education experts regard universities selecting students according to independent examinations as conducive (有助的) to better understanding where the students’ talents lie.
Although this may be the case, it has also created problems as students may sit many differen
t exams as they often apply for a number of universities.
To relieve students from such pressures, the national education outline (2010—2020) released in July this year encourages high-level universities to group together to use the same exams. If students want to be admitted to the seven prestigious universities, they can______.
| A．only pass the interview. |
| B．only take the national exam. |
| C．only take the independent exam. |
| D．either take the national exam or the take the independent exam. |
What’s the purpose of students sitting one independent exam to gain entrance to the seven universities?
| A．It can reduce students’load to take several exams. |
| B．The universities will have the same standard to test students. |
| C．There will be less trouble marking students’ test papers. |
| D．It can avoid fierce competition among these universities. |
If students pass the independent exam,they will ______.
| A．take the national exam. |
| B．have one or more interview chances. |
| C．be admitted to one of the universities. |
| D．he trained to be adapted to universities life and studies. |
What is the advantage of universities selecting students according to independent examinations?
| A．Students needn’t take the national exam. |
| B．Students’education cost can be lowered. |
C．Students abilities and talents can b e better found. |
| D．It can encourage middle schools to recommend more qualified students. |
When you do some minor image editing (修正) on your computer screen, you may make some mistakes, so from time to time you’d click undo (撤消).
There are things in life we cannot undo as easily and completely as we would with our computer files. A wrong turn, a hurtful word said to a loved one, a bad move — these we all commit as we walk our life’s journeys, no matter how careful we are in our steps. Once committed, we can no longer undo many of these mistakes, especially because unlike with our computer documents, each thing we do and say has vast impact as they involve not just us — the file that we are working on — but also others, the unopened files and computer programs in our system.
So I guess our life’s mistakes are not like our pencil scrawls (潦草书写) that can be effectively corrected with an eraser, or errors on our computer works that can be undone with an undo button. But there are effective and reliable tools we can use—APOLOGY and FORGIVENESS. Simply click the APOLOGY button when you have commit
ted a mistake that has hurt a loved one and the words “I’m Sorry” will flash on the other person’s screen. But, you have to be truly sorry and you must be prepared not to commit the same mistake again for your APOLOGY to work. Sincerity is definitely a necessary part.
When someone clicks the APOLOGY button and the words “I’m sorry” flash on your screen, all you have to do is click back the FORGIVENESS (原谅) button. It means that you have wholeheartedly accepted the other person’s APOLOGY. But not only that. You also have to click it when someone has sent you back the message “It’s okay. Forget about it.”. It means that you are also forgiving yourself for your mistake; that you won’t keep feeling so bad having committed it.
And lastly, don’t forget to keep clicking the SAVE button. Going through the whole process of editing—of doing and undoing, of apologizing and forgiving — is useless if you fail to save the LESSON for future use. Let the saved file be a reminder of the healing process you once went through to make yourself better; for you not to forget the lesson; and for others to access and learn from.Which of the following is TRUE?
| A．However careful we are, we still make mistakes in life. |
| B．Things we do and say can affect computer programs in our system. |
| C．We can undo life’s mistakes if we are careful enough. |
| D．An eraser is an effective tool for our computer works. |
The APOLOGY button should be clicked when ________.
| A．one wants to make the computer work perfectly |
| B．one’s mistakes won’t influence others any more |
| C．one is actually saying “I’m sorry” |
| D．one won’t make the same mistake again |
What does the underlined word “it” in Paragraph 4 refer to?
| A．The UNDO button. | B．The APOLOGY button. |
| C．The SAVE button. | D．The FORGIVENESS button. |
We need to click the SAVE button in life because ________.
| A．we want to go through the whole process of editing |
| B．we need to learn a lesson from the past mistakes |
| C．we want to make the healing process faster |
| D．we need to use the computer properly |
A sunflower is a sunflower. A mobile phone is a mobile phone. But can you combine the two to do something for your local environment? As early as next year it may well be possible. When you have finished with your mobile phone you will be able to bury it in the garden or a plant pot and wait for it to flower.
A biodegradable (生物可降解的) mobile phone was, this month, introduced by scientists. It is hoped that the new type of phone will encourage consumers to recycle (再利用). Scientists have come up with a new material over the last five years. It looks like any other plastic, but overtime it can break down into the soil without giving out any poisonous chemicals. British researchers used the new material to develop a phone cover that contains a sunflower seed. When this cover turns into waste, it forms nitrates (硝酸盐). These feed the seed and help the flower grow. “We’ve only put sunflower seeds into the cover so far. But we are working with plant experts to find out which flowers will perform best. Maybe we could put roses in next time.” said one scientist.
As phone technology is developing so quickly people are constantly throwing their mobiles away. This means producers are under pressure to find ways of recycling them. Some 650 million mobile phones have been sold this year. Most of them will be thrown away within two years, adding plastic, heavy metal and chemical waste to the environment. A biodegradable cover can offer some relief for nature, according to the scientists. “The seed is released and the flower grows in the pot so you don’t have to concern yourself with the phone when you have finished using it,” said Kerry Kirwan, the leader of the research team.After you have finished using the new type of mobile phone, _______.
| A．the sunflower seed will come out and flower in the pot |
| B．the phone cover will break down very soon in the soil |
| C．it will be recycled by the producers |
| D．it can charge itself with electricity in a green way |
This type of research is done because ________.
| A．the technology of making phones is changing rapidly |
| B．too many waste mobile phones may lead to environmental problems |
| C．nobody has ever thought of recycling mobile phones |
| D．producing mobile phones uses a lot of energy |
We can infer from the story ________.
| A．the new type of mobile phones is already on the market |
| B．the new type of mobile phones will sell extremely well |
C．the material of the new type of phones is  harmful |
| D．other flowers may be used in the new type of mobile phones |