As free as they make us, mobile phones still need to stay close to a power source. Soon that may change with "green" power.
Three Chilean students got the idea for a plant-powered device(装置) to charge(使……充电) their cellphones, while sitting in their school's outdoor courtyard during a break from exams, with dead mobile phones. Then, one of them had an "aha" moment.
“It occurred to Camila to say about plants,” said inventor Evelyn Aravena. “'Why don't you have a socket, if there are so many plants? 'After that, we thought, 'why don't they have a charging outlet(插座)? Because there are so many plants and living things that have the potential to produce energy, why not?'”
Their invention—a small biological circuit called E-Kaia—uses the energy plants to produce during photosynthesis(光合作用). A plant uses only a small part of that energy and the rest goes into the soil, and that's where the E-Kaia collects it. The device plugs into the ground and then into your phone.
"It's the most amazing project I've ever seen in my life, plain and simple. They brought this original model, and it worked — and that's when it all changed, at least from my personal point of view and I began to support them." said Mauricio Cifuentes.
The device solved two problems for the engineering students — they needed an idea for a class project, and an outlet to plug in their phones.
"Looking for a place to charge the notebook, which had no power, and the mobile phones, we weren't able to find anything because all the other students were in the same state of madness trying to find a place to charge their devices," said Aravena.
But plants are everywhere, and the bio-circuit makes good use of their excess(过多的) power.
The E-Kaia doesn't carry much charge but it's powerful enough to completely recharge a mobile phone in less than two hours.
The student inventors have applied for patents(专利) on their technology, and expect the E-Kaia to go on sale in the near future.
增加:在缺词处加一个漏字符号(∧),并在其下面写出该加的词。
删除:把多余的词用斜线(\)划掉。
修改:在错的词下划一横线,并在该词下面写出修改后的词。
注意:1)每处错误及修改均仅限一词;
2)只允许修改10处,多者(从第11处起)不计分。
I'd like to hand in my request for one week vacation that will run from January 23 to 29. My family and you would like to spend Spring Festival holiday back to Beijing. We need to start making arrangements now in order to make the trip as comfortably as possible. For my vacation, I had already completed all the required homeworks. I have also discussed my vacation with my friend Zhang Hua which is more than willing to dealing with any unexpected incident for me when I am away. You can call for him at 445-2322 if necessary.
Your response to this issue would be greatly appreciate.
My first lesson is at a meeting. As we settle around the table I hear Meg, who is1a recent operation, talking to Judith, the manager of our project. “Thank you so much for2 my daughters to their dance lessons last week.” “Don't mention it,” Judith says, “It was nothing.”
Knowing how 3Judith's schedule is, with her work, kids and aging parents, I find her driving Meg's children to lessons unbelievably 4. I am about to say more about this when Donna, another colleague, enters the room5. She apologizes for being late, saying she just hosted a lunch for her friends who are over seventy. “That is so nice of you,” I say, 6 how busy she is, how she doesn't like to cook and clean. “Oh,” she says, waving her hand, “It was nothing.”7, I can still tell the 8in her voice. She did gain a sense of satisfaction from the entertainment offered to her friends.
Seeing their 9 to help others selflessly, I start thinking about the concept of “nothing”, this way of living—had it really been nothing or are they simply saying that? It 10to me that once I spent a whole afternoon after work helping a friend 11a speech she was going to deliver. I12 her to rearrange the sequence of the stories in the lecture to make it sound more 13. After the fifth try, she finally 14it . She hugged me with15, saying thanks to me. I smiled and said it was nothing.
Suddenly, I realized that helping someone was really something to me. I learned that giving from the heart doesn't 16 mean sacrifice and hard work. The 17is finding something we love to do and finding someone who18 that something. Our generosity can benefit others19 ourselves. Once you have a good 20of it, it's nothing. And it's really something.
Five million people visit Grand Canyon in the US every year. For the purpose of helping project Grand Canyon for your fellow visitors and future generations, please follow the guidelines below.
Camping
To project the park, camping is allowed only within permitted campgrounds. Permits are required for overnight camping at the North Rim. Advance booking can be received by mail. Please write: Information Center, P.O. Box 129, Grand Canyon, AZ 86023
Fires
Because of the extreme fire danger, campfires are not allowed except at Mather and Desert View campgrounds. Collection of firewood is not allowed either.
Hiking
Please stay on permitted paths. Otherwise you may destroy desert plants. Pack out what you pack in, so you leave no signs of your visit. It is important to keep in mind that you are in a national park where wildlife exists.
Weather
The weather at Grand Canyon can change very quickly. With so much rock, lightning causes a particular danger during sudden summer storms. These storms also frequently bring floods inside valleys, a danger to hikers. Watch the skies and check daily weather reports.
Wildlife
Do not feed park wildlife. There have been a few cases at Grand Canyon National Park where deer were purposely shot because they ate plastic bags that left them sick and weak. Hungry deer can be danger and have kicked and bitten visitors at Grand Canyon. Some other animals will also beg and bite. For your own safety and the well-being of the animals, please do not feed wildlife, no matter how gentle they may appear.
In China, the history of people planting and using bamboo can date back as far as 7000 years. As early as the Shang Dynasty, bamboo was being used in ancient peopled dally lives. It was used for food, clothing, housing, transportation, (music) instruments and even weapons.
The (apply) of bamboo in science and technology is thrilling. In 251 BC, Li Bing, in Sichuan, (lead) the local people in building the Dujiang Weirs, the first irrigation network in the world, in which bamboo played important role. The world's oldest water piper was also (make) of bamboo. During the Han Dynasty, the people in Sichuan (success) sank a 1600-metre-deep well with thick bamboo ropes. This technology did not spread to Europe the 19th century, and it was by using the technology the Americans drilled the first oil well in Pennsylvania in 1859.
In Chinese culture, bamboo is well-known as of the "four gentlemen" in plants. To many distinguished men, bamboo is a symbol of goodness and honesty. It is always closely related to people of positive spirits. Bamboo culture contributes to encouraging People to hold on when (face) tough situations.
The ambulance was just arriving, for a worker, who ______ the window on the second floor, fell off the window.
A.had been repairing B.was repairing
C.has been repairing D.would be repairing
Read the postcards and choose the best answer for each question.
Dear Youming, Have arrived in Bikaner leaving Love, Lisa | Dear Mum and Dad, We have just arrived in Wish you were here, Lisa |
21/1/2007 Dear Jinao, So far so good. Once we arrived in It’s been an amazing experience and I’m sorry that we’ll be flying home this evening. Bye for now. Lisa | Jaipur 17/1/2007 Dear Libing, I am writing from the Johari bazaar in Jaipur. This is a wonderful jewellery market. I’ve found all sorts of intriguing treasures. This morning we visited the Hawa Mahal,”The palace of the Winds”. It is the most incredible structure. The façade of the palace is all windows and filigree screens. Yesterday we visited the See you soon, Lisa |
63. The order in which Lisa visited the cities is ______.
A. Delhi, Bikaner,
B. Delhi, Bikaner, Jaipur,
C. Jaipur, Bikaner, Agra,
D. Bikaner, Delhi, Jaipur,
64. According to the postcards, which of the following statements is TRUE? Lisa _______.
A. was hesitant about going on a camel ride
B. visited the Hawa Mahal and the
C. did not have the opportunity to visit the India Gate
D. did not get to see as much of
65. The aspect of the Taj Mahal that impressed Lisa the most was its ________.
A. colour B. shape C. location D. size
66. The postcards from Lisa about her trip to
A. she plans to return to
B. the hotels she stayed in had excellent service
C. the people she met in
D. she thoroughly enjoyed her trip
High school students have always spread gossip (传言) in the halls, on the walls and on the phone. Now it’s on the Internet, too. On various message boards, kids write about whom they hate, whom they think have fallen in love with each other and record other often hurtful things that may or may not be true.
Sixteen-year-old Jessica remembers once when some kids at her school wrote cruel things about her on the web. “They were just making fun of me,” she says. They said she’s really ugly, she’s this, she’s that, blah-blah-blah.
Jessica’s 11-year-old sister, Emma, admits she’s used the web to write bad things about another girl, though she regrets it now. “After a while, you may feel like, how could I have been so mean? Or, why did I do that?” she says.
Experts say gossip on the Internet can be more harmful than the old fashioned kind. It lasts longer and is taken more seriously. And, unlike ugly words on the bathroom wall, there’s no way to get rid of it.
If your kids are victims(受害者) of online gossip, Dr. Commanday suggests putting the gossip in to perspective (正确看待). “Point out to them how what’s being said on the screen differs from what everyone knows about you as a person,” Dr. Commanday says.
You can also try what worked from Emma: keep your kids off the offensive (冒犯的) website! “When she was using it all the time, her name was there all the time. People were writing things about her,” explains Patti Thrift, Emma’s mother, “Since she has no longer had access to that, she’s no longer a topic of conversation.”
13. From the examples of Jessica’s sister, we can learn that ______.
A. ugly girls like to spread gossip online B. ugly girls easily become victims of online gossip
C. gossip-makers can regret what they do D. online gossip is mainly some jokes on others
14. According to the passage, why is online gossip more hurtful?
A. It is written words. B. It cannot be removed easily.
C. It is much uglier. D. It is easier to believe.
15. The purpose of the passage is to ___________.
A. give some tips on how to prevent hurt of gossip on the Internet
B. list the difference between the old fashioned gossip and gossip on the Internet
C. advise students to keep away from the Internet
D. introduce different kinds of hurt students might meet with
We shouldn’t put labels on other people ___________ based on one thing or a few words we’ve heard.
A. really B. merely C. rarely D. approximately
The professor’s house, big and untidy, stood alone at one end of a huge garden. The place was totally uncared for, quite 41 and overgrown with all sorts of useless things. I 42 my way through bushes and tall weeds to the front door and rang the bell.
I was glad that I had found him. In twenty minutes he 43 me right on all the 44 that had puzzled me. I was on the 45 of leaving when I looked out of his study window and said, “You’re very fond of gardening,I see.”
“No,I’m not,” he said.“ 46 ,I love this garden,though. It’s 47 I always wanted it to be. I never touch it at all.”
“It could be made lovely. It 48 a pity to let all this ground go to waste. But perhaps you don’t 49 that way?” said I.
“I don’t. I lived here when I was a child,and I had 50 of gardening then. It was my father’s hobby, you see. Unfortunately,he wasn’t 51 enough to do it himself. My brother and I did all of it between us year after year. There was one right way and many wrong ways. Each blade of grass was an enemy to be 52 by hand, not just cut off. I’ve spent a good part of life at work here.”
“I see. You took a dislike to it, and now you’re getting even!”
“I dislike it. Then, of course, I didn’t understand the 53 it had. It used to 54 me. It appeared in my dreams—a mistake here, something not quite straight here, the enemy showing its head in a place I was 55 to have cleaned. The work was too much. It seemed endless. The size of the place was itself a fight to a boy.”
“And now it’s yours,you’re just letting it go to... ”
“ 56 ?” he said. “No,I don’t agree with that. This garden and I are now the best friends. I like 57 it grow 58 its own way. I make no demands on it. I never disturb it, and it never disturbs me. It has 59 at last, and so have I.”
“But the path is over grown. It’s inconvenient for you,isn’t it?”
“That’s part of my 60 ,” he laughed. “You can go out the back way. The weeds are shorter there because they don’t get the sun.”
41. A. wild B. crazy C. large D. nice
42. A. lost B. felt C. took D. made
43. A. let B. put C. taught D. explained
44. A. gardening B. plants C. problems D. solution
45. A. time B. point C. permission D. request
46. A. Even if B. So C. As though D. Even so
47. A. as B. where C. why D. whether
48. A. seems B. is C. proves D. sounds
49. A. recognize B. sense C. see D. know
50. A. fond B. short C. free D. enough
51. A. interested B. fit C. content D. demanding
52. A. fought against B. cleared up C. rooted out D. cut down
53. A. effect B. reason C. cause D. result
54. A. astonish B. shock C. worry D. disappoint
55. A. thought B. supposed C. ordered D. expected
56. A. Sell B. Develop C. Grow D. Ruin
57. A. noticing B. attending C. watering D. watching
58. A. on B. in C. with D. of
59. A. freedom B. time C. sunlight D. space
60. A. life B. pleasure C. job D. research
你身边的不少同学喜欢用手机发短信、听音乐。有的同学喜欢周末上网玩游戏,影响了正常的学习。针对这个现象,你决定给校广播站写一篇稿件,倡议同学们要正确对待现代媒体。内容包括:
1.列举沉迷于现代媒体的现象;
2.提出合理化的建议。
注意:词数100字左右。
Dear fellow students,
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That’s all. Thank you!