An experimental solar-powered plane landed safely Thursday after completing its first 24-hour test flight, proving that the aircraft can collect enough energy from the sun during the day to stay aloft(在空中) all night.
Pilot Andre Borschberg eased the Solar Impulse onto the runway at Payerne airfield about 30 miles southwest of the Swiss capital Bern at exactly 9 a.m. (3 a.m. EDT) Thursday. Helpers rushed to stabilize the pioneering plane as it touched down, ensuring that its massive 207-foot wingspan didn't scrape the ground and topple(傾倒) the craft.
The record feat(壯舉) completes seven years of planning and brings the Swiss-led project one step closer to its goal of circling the globe using only energy from the sun. ‘We achieved more than we wanted. Everybody is extremely happy,’ Borschberg told reporters after landing.
Previous flights included a brief ‘flea hop’ and a longer airborne test earlier this year, but this week's attempt was described as a ‘milestone’ by the team. The team said it had now demonstrated that the single-seat plane can theoretically stay in the air indefinitely, recharging its depleted batteries using 12,000 solar cells and nothing but the rays of the sun during the day. But while the team said this proves that emissions-free air travel is possible, it doesn't see solar technology replacing conventional jet propulsion(噴氣推進(jìn)) any time soon. Instead, the project's overarching purpose is to test and promote new energy-efficient technologies.
Project co-founder Bertrand Piccard, himself a record-breaking balloonist, said many people had been skeptical that renewable energy could ever be used to take a man into the air and keep him there. ‘It’s a matter of time that people come to believe and understand about renewable energies,’Piccard said, adding that the flight was proof that new technologies can help break society's dependence on fossil fuels.
The team will now set its sights on an Atlantic crossing, before attempting a round-the-world flight in 2013, making only five stops along the way. ‘It's absolutely not time to relax,’ said Piccard.
Title: A __________ in solar-powered flight and its background information
A project on solar-powered flight | Main purpose: To test and promote __________ __________: To make an Atlantic crossing; To attempt a round-the-world flight with only five stops in 2013. Long-term goal: To circle the globe using only __________. |
__________ | a brief ‘flea hop’; an airborne test. |
Record-setting test flight | Name of the plane: __________ Name of the pilot: Andre Borschberg Time: __________ Length of Place: at Payerne airfield, Switzerland. Achievements: ●proving that the aircraft can collect enough energy from the sun during the day to stay aloft all night, making __________ possible; ●proving that new technologies can help rid society of __________ fossil fuels; ●bringing the project __________ to its long-term goal. |
年級(jí) | 高中課程 | 年級(jí) | 初中課程 |
高一 | 高一免費(fèi)課程推薦! | 初一 | 初一免費(fèi)課程推薦! |
高二 | 高二免費(fèi)課程推薦! | 初二 | 初二免費(fèi)課程推薦! |
高三 | 高三免費(fèi)課程推薦! | 初三 | 初三免費(fèi)課程推薦! |
科目:高中英語(yǔ) 來(lái)源: 題型:閱讀理解
閱讀下面短文,回答后面的問(wèn)題。(共5小題;每小題2分,共10分。)
[1]The cigarette industry began in the 1870s with the development of the cigarette manufacturing machine. This made it possible to produce great numbers of cigarettes very quickly. And it reduced the price.
[2] Today cigarette smoking is a wide –spread habit . About forty percent of the adult men and thirty –one percent of the adult women in the US smoke cigarettes regularly. It’s encouraging to note, however, that millions of people have given up smoking habit. Seventy-five percent of the male population and forty-six percent of the female population have smoked cigarettes at some time during their lives, but twenty-six percent of these men and eleven percent of the women have stopped smoking. The number of the persons who have given up smoking is increasing.
[3]Income. education, and occupation all play in determining a person’s smoking habit. City people smoke more than people living on farms. Well-educated men with high incomes are less likely to smoke cigarettes than men with fewer yeas of schooling and lower income. On the other hand. If a well-educated man with a higher income smokes at all, he is likely to smoke more packs of cigarettes per day.
[4] . There are slightly more smokers among women with higher family incomes and higher education than among the lower incomes and lower education group, These more highly educated women tend to smoke more heavily,
[5]Among teenagers the picture is similar. High school students who are preparing for college are less likely to smoke than those who do not plan to continue their education after high school. Children are most likely to start smoking if one or both of their parents smoke.
What is the reason for the cigarette industry’s fast growth?(no more than 11words)
Translate the underlined sentence in Paragraph 4 into Chinese.
.What’s the general idea of Paragraph2 (no more than 10 words)
Fill in the blank in Paragraph 4 with proper words.(no more than 8words)
Which sentence in the text is closest in meaning to the following one?
More and more people in the US have given up smoking.
查看答案和解析>>
科目:高中英語(yǔ) 來(lái)源: 題型:
-- _____! I’m practising my writing while you must bother me !
A. Go ahead B. You’ve got it C. It’s your turn D. Keep the noise down
查看答案和解析>>
科目:高中英語(yǔ) 來(lái)源: 題型:
Panama,____ country in Central America, is the only place in the world ____ someone can see the sun rise on the Pacific Ocean and set on the Atlantic.
A. the, in what B. a, where C. /, where D. a, which
查看答案和解析>>
科目:高中英語(yǔ) 來(lái)源: 題型:
The old man the child not to play in the river but they wouldn’t listen.
A.suggested B.warned C.hoped D.persuade
查看答案和解析>>
科目:高中英語(yǔ) 來(lái)源: 題型:
To enjoy the scenery, Sara would spend long hours on the train ______ travel by air.
A. as to B. other than C. instead of D. rather than
查看答案和解析>>
科目:高中英語(yǔ) 來(lái)源: 題型:
He said he would arrive before seven, and______ .
A.he did B.did he C.he had D.had he
查看答案和解析>>
科目:高中英語(yǔ) 來(lái)源: 題型:
______ better in 2010 World Expo is the duty of every citizen in Shanghai.
A. Being served B. Serving C. Serve D. Having served
查看答案和解析>>
科目:高中英語(yǔ) 來(lái)源: 題型:
Tommy is _______ captain of the class team at school and he is also _____ member of _____ Senor High team.
A./ ; a ; the B.the ; the ; the C.the ; a ; the D./ ; / ; the
查看答案和解析>>
百度致信 - 練習(xí)冊(cè)列表 - 試題列表
湖北省互聯(lián)網(wǎng)違法和不良信息舉報(bào)平臺(tái) | 網(wǎng)上有害信息舉報(bào)專區(qū) | 電信詐騙舉報(bào)專區(qū) | 涉歷史虛無(wú)主義有害信息舉報(bào)專區(qū) | 涉企侵權(quán)舉報(bào)專區(qū)
違法和不良信息舉報(bào)電話:027-86699610 舉報(bào)郵箱:58377363@163.com