They travel in groups, noses just inches away form GPS screen. Suddenly a boy shouts “I found it!”, grinning and walking away from the group.
The others focus on their screens. “Me. too!” shouts another a moment later, until all six kids are crowded around a tree, pulling out a plastic bottle painted to look like tree bark. It doesn’t seem like much from the outside, but everyone gathers around, eager to see what’s inside.
This is geocaching, a high-tech game played using coordinates (坐标) and global positioning systems to find hidden “treasures”.
It’s open to anyone—hiders or seekers—with a GPS and access to www.geocaching.com, where more than half a million users download and upload the coordinates of nearly 1 million hidden caches (储藏物) and write about their experiences in this worldwide hunt.
Although some adventures can take hours or even days, the contents inside the actual cache usually aren’t valuable—often just a book or a small trinket (小饰品).
But participants aren’t in it for the treasure. They say it’s a great way to exercise. Or it brings them to remote destinations or historical sites. Some consider it an extreme sport, looking for geocaches hidden in mountains or in other nearly inaccessible locations.
Jeffrey Howe, 41, sees it as an opportunity to take kids on adventures to unfamiliar places. The youths at the shelter mostly come form the city, but geocaching has taken them to parks, the suburbs, and, once, to a 498-meter-high mountain.
“Geocaching is a way to give kids the idea that there’s a whole world out there other than what they know from their home neighborhoods and video games,” he said.
How does it work? Log onto the Website and enter your zip code (邮编), then search for caches near your location. Although posted coordinates will take a GPS within about 4.5 meters of a cache, a good hide will require seekers to do a bit of hunting around. Caches can’t be buried underground, nor can they be hidden on private property (财产), in dangerous locations or in some national parks.
Posts written about the find—whether successful or unsuccessful—are an important part of the game, with users proudly recording the places to which they’ve traveled.
1. What is the meaning of the underlined word geocaching in paragraph 3?
A. A computer game played all over the world.
B. A TV series popular around the world.
C. An outdoor game of hiding and finding things.
D. A name of the latest GPS.
2. In geocaching, which of the following statements about players is NOT TRUE?
A. Players need to have GPS to play the game.
B. Players need to download the coordinates to find the hidden caches.
C. Players need to be young and strong to the play the game.
D. Players are asked to hide things in parks or other places most people can reach.
3. What is Jeffrey Howe’s attitude toward geocaching?
A. Negative. B. Objective. C. Uncertain. D. Supportive.
4. Many people like to play this game because __________.
A. they take pleasure in the process of the game
B. they like to visit historical sites
C. they want to find some treasure
D. they want to change their lives
I was in my third year of teaching creative writing at a high school in New York, when one of my students, 15-year-old Mikey, gave me a note from his mother. It explained his absence from class the day before.
I had seen Mikey himself writing the note at his desk. Most parental-excuse notes I received were penned by my students. If I were to deal with them, I’d be busy 24 hours a day. The forged excuse notes made a large pile, with writing that ranged from imaginative to crazy. The writers of those notes didn’t realize that honest excuse notes were usually dull: “Peter was late because the alarm clock didn’t go off.”
Isn’t it remarkable, I thought, how the students complained and said it was hard putting 200 words together on any subject? But when they produced excuse notes, they were brilliant.
So one day I typed out a dozen excuse notes and gave them to my classes. I said, “They’re supposed to be written by parents, but actually they are not. True, Mikey?” The students looked at me nervously.
“Now, this will be the first class to study the art of the excuse note --- the first class, ever, to practice writing them. You’re so lucky to have a teacher like me who has taken your best writing and turned it into a subject worthy of study. ”
Everyone smiled as I went on, “You used your imaginations. So try more now. Today I’d like you to write ‘An Excuse Note from Adam to God’ or ‘An Excuse Note from Eve to God’.” Heads went down. Pens raced across paper. For the first time ever I saw students so careful in their writing that they had to be asked to go to lunch by their friends.
The next day everyone had excuse notes. Heated discussions followed. The headmaster entered the classroom and walked up and down, looking at papers, and then said, “I’d like you to see me in my office.”
When I stepped into his office, he came to shake my hand and said, “I just want to tell you that that lesson, that task, whatever the hell you were doing, was great. Those kids were writing on the college level. Thank you. ”What did the author do with the students found dishonest?
A.He reported them to the headmaster. | B.He lectured them hard on honesty. |
C.He had them take notes before lunch. | D.He helped improve their writing skills. |
The author found that compared with the true excuse notes, the produced ones by the students were usually ________.
A.less impressive | B.less convincing | C.worse written | D.more imaginative |
The author had the students practice writing excuse notes so that the students could learn_________.
A.the importance of being honest | B.how to be creative in writing |
C.the pleasure of creative writing | D.how to write excuse notes skillfully |
The underlined word “forged” in the second paragraph means “________”.
A.false | B.copied | C.former | D.honest |
What did the headmaster think of the author’s way of teaching?
A.Misleading. | B.Difficult | C.Effective. | D.Reasonable. |
I had the meanest mother in the world. While other kids ate candy for breakfast, I had to have cereal (谷类食物), eggs or toast. While others had Cokes and candy for lunch, I had to eat a sandwich. As you can guess, my supper was different from other kids' too. But at least I wasn't alone in my sufferings. My sister and two brothers had the same mean mother as I did.
My mother insisted upon knowing where we were at all times. She had to know who our friends were and where we were going. She insisted if we said we'd be gone an hour, then we be gone one hour or less—not one hour and one minute. And she always insisted upon us telling the truth. Now you can see how mean she was.
The worst is yet to come. We had to be in bed by nine each night and up at eight the next morning. We had to wash dishes, make beds, and learn to cook. We had to wear clean clothes and take a bath, while the other kids always wore their clothes for days. I believe she laid awake at night thinking up mean things to do to us.
Through the years, things didn't improve a bit. We could not lie in bed, “sick” like our friends did, and miss school. Our marks in school had to be up to par(达到正常水平). Our friends' report cards had beautiful colors on them, black for passing, red for failing. My mother, being as different as she was, would settle for nothing less than ugly black marks.
As the years rolled by, we were one by one put to shame. We were graduated from high school. With our mother behind us, talking, hitting and demanding respect, none of us was allowed the pleasure of being a dropout.
My mother was a complete failure as a mother. Out of four children, a couple of us attained some higher education. And whom do we have to blame for the terrible way we turned out? You're right, our mean mother. She forced us to grow up into educated and honest adults.
Now I am trying to raise my three children. I am filled with pride when my children think I am mean because, you see, I had the meanest mother in the world.What does the sentence “But at least I wasn't alone in my sufferings.” mean?
A.The author's mother was only mean to her. |
B.The author's mother suffered her. |
C.The author's mother was mean to her sister, brothers and her. |
D.The author wasn't alone because of suffering. |
Why was the author's mother mean to her children?
A.Because she wanted her children to be top students in school. |
B.Because she wanted her children to bring home colored report cards like her friends did. |
C.Because she wanted her children to drop out. |
D.Because she wanted her children to do their best at school and be educated and respected citizens. |
Which of the following statements is NOT true according to the passage?
A.Some of the children weren't able to go to college because of their mean mother. |
B.Mother didn't let the author tell lies. |
C.Mother asked the author to wear clean clothes. |
D.The author could not miss school even if she was ill. |
The passage was written in a way of _______ tone?
A.humorous | B.hateful | C.ridiculous | D.critical |
CORVALIJS. Ore.-- Engineers at Oregon Suite University have made a breakthrough in the performance of microbial (微生物的)fuel cells that can produce electricity directly from wastewater,opening the door to a future in which waste treatment plants not only will power themselves, but will sell extra electricity.
The new technology ,developed at OSU, can now produce 10 to 50 more times the electricity, per volume, than most oilier approaches using microbial fuel cells,and 100 times more electricity than some.
Researchers say this could eventually change the way that wastewater is treated all over the world, replacing the widely used “activated sludge (泥浆) ” process that has been in use for almost a century. The new approach would produce significant amounts of electricity while effectively cleaning the wastewater,
“If this technology works on a commercial scale the way we believe it will ,the treatment of wastewater could be a huge energy producer, not a huge energy cost.” said Hong Liu ,an associate professor in the OSU Department of Biological and Ecological Engineering. “This could have an impact around the world, save a great deal of money, provide better water treatment and promote energy sustainability.”
The biodegradable (能降解的)characteristics of wastewater, if developed to their full potential, could theoretically provide many times the energy that is now being used to process them, with no additional greenhouse emissions.
OSU researchers reported several years ago on the promise of this technology, but at that time the systems in use produced far less electrical power. With new concepts, the technology can now produce more than two kilowatts per cubic meter of liquid reactor volume.
The new system also works better than an alternative approach to creating electricity from wastewater, based on anacrobic (臭氧的)digestion that produces methane (甲烷).It treats the wastewater more effectively, and doesn’t have any of the environmental drawbacks of that technology, such as production of possible release of methane, a significant greenhouse gas.Which of the following best expresses the main idea of the passage?
A.The treatment of wastewater is a huge energy cost. |
B.Wastewater is being treated differently over the world. |
C.Waste treatment plants have found a new way to power themselves. |
D.Microbial fuel cells will produce more electricity from wastewater. |
What can we learn about the new technology from the passage?
A.It can produce 100 times more electricity than any approach used today. |
B.Through it more electricity can be created and water can be cleaned better. |
C.It has already changed the way that wastewater is treated all over the world |
D.It has opened the door to put microbial fuel cells to productive use. |
What attitude does Professor Liu hold towards the new technology?
A. Supportive. B. Critical.C Unconcerned.D. Curious.According to the last paragraph, why does the new system work better than the alternative approach?
A.Because it is co-friendly and treats wastewater more effectively. |
B.Because it can make full use of anaerobic digestion producing methane. |
C.Because it may produce less methane than the alternative approach. |
D.Because it can produce 10 times the energy than the alternative approach. |
Although man has known asbestos (石棉) for many hundreds of years, it was not until 160 years ago that it was mined for the first time on the North American continent. H.W.Johns, owner of a New York City Supply Shop for roofers, was responsible for the opening of that first mine.
Mr.Johns was given a piece of asbestos which had been found in Italy. He experimented with the material and then showed its surprising powers to his customers. After putting on a pair of asbestos gloves, which looked much like ordinary work gloves, he took red-hot coals from the fireplace and played with them in his hands.How astonished the customers were to discover that he was not burned at all.You can well imagine that he had increasing business in asbestos roofing materials. However, because it was very expensive to transport them from Italy to the United States, Mr.Johns sent out a young scientist to seek a source nearer home. This young man found great vein(岩脉), in the province of Quebec in Canada.
Ever since 1881 Quebec has led the world in the production of this unusual mineral, which is made up of magnesium, silicon, iron, and oxygen.When it is mined, the asbestos is heavy, just as you would expect a mineral to be.When it is separated, a strange thing happens: the rock breaks down into fine, soft, soapy fibres.
Scientists do not know why the rock can be separated easily into threads, but they have found thousands of uses of this fireproof material, of the so-called “cloth of stone”.Which title best expresses the main idea of this passage?
A.Asbestos mined in Canada | B.Fireproof matter |
C.A “wonder” mineral | D.A new roofing material |
Johns proved his ability as a salesman by_______.
A.going into roofing business | B.carrying asbestos from Italy |
C.sending a trained scientist | D.showing the use of asbestos gloves |
Which is the most important characteristic of asbestos that the author wants to show us?
A.It is like thread. | B.It feels soapy. |
C.It burns easily. | D.It is unusually heavy. |
The author’s main purpose in writing this passage was to _______.
A.show the need for more scientists |
B.compare asbestos with other minerals |
C.increase the sales of asbestos |
D.present facts about asbestos |
Nuclearpowered aircraft carriers are considered one of the most important marine weapons in the 20th century. So far, only two countries in the world, the USA and France, have ever produced them. But these fearful fighting machines are about to enter Asia.
The US Navy said last month that one of its nine nuclearpowered aircraft carriers will be sent to Japan to replace the diesel(柴油)powered carrier Kitty Hawk in 2008. In an agreement on October 30, the two countries also planned to level up their military (军事的) cooperation and the USA called for Japan to take a larger role in military alliance (同盟) moves.
It will be the first time that a nuclearpowered carrier is based in Japan. Bombed by US forces in World War Ⅱ at Hiroshima and Nagasaki, Japan is the only world country to have been attacked by a nuclear weapon. Therefore, the citizens are highly sensitive to where nuclearpowered weapons are based.
“A radiation leak at Yokosuka would kill 100,000 people as far away as Tokyo, and could cause billions of dollars in damage,” said Masahiko Goto, leader of a protest group in Yokosuka. His group has collected more than 300,000 signatures of people across Japan opposed to the nuclear carrier.
The 44yearold Kitty Hawk, the US Navy's oldest active ship, has been based in Yokosuka since 1998. It had returned to the US to be decommissioned(使退役) in 2008. The new carrier, yet to be unveiled, will travel faster, be capable of supporting longer operations and carry with it the Navy's most modern technology.
Experts pointed that this change is not only to strengthen the USJapan military alliance but also to keep the military power of China and North Korea within limits. However, even Japanese experts don't believe that the two countries are threats to the region.
“There is no need for Japan to have a nuclear carrier as defense,” said Tetsuo Maeda, an international relations professor at Tokyo International University. He said that the change of ship indicates an increased military capability in the region, much more than what is needed.With such a fearful weapon to enter its country, Japanese citizens ________.
A.are aware of its benefits to the country |
B.are anxious about its potential danger |
C.are curious about the advanced technology |
D.are against where the carrier will be based |
The replacement of the aircraft carrier is intended to________.
A.set up a kind of base in Japan |
B.strengthen the USJapan military alliance |
C.show Japan's greater military capability |
D.get rid of the dated marine weapon |
From the story, we learn that________.
A.no other countries except the USA and France possess aircraft carriers |
B.Japan has long planned to increase its military capability with new weapons |
C.Japan will be the first country in Asia to have a nuclear aircraft carrier |
D.Japan will be the third country to produce a nuclearpowered aircraft carrier |
The underlined word “unveiled” in the fifth paragraph probably means________.
A.perfected | B.discussed about |
C.produced | D.brought to view |