题型:阅读理解 题类:常考题 难易度:普通
贵州省兴义市第八中学2016-2017学年高一下学期期中考试英语试题
“Hello, Earth! Can you hear me?” That's voice more than 400,000 people received recently. It was from Philae, a space vehicle that landed on a comet(彗星)in 2014. However, its transmissions (传输信号)back home went silent since then.
It took a long time for Philae to make its way across the solar system (太阳系)and reach comet 67P/C-G. The pace vehicle got there aboard the Rosetta probe (探测器), which has been circling around the comet since Philae separated from it in November, 2014.
Philae's job was to collect materials to study the comet's composition. And for about two and a half days after landing, it did just that, sending the information back to scientists on Earth. But Philae's landing on the comet's icy surface had not been smooth. While touching down, it jumped up and ended up in the shadow of something like a huge rock. Philae runs on solar power, but there was no light in the place where it landed. In the end, it failed to work.
However,as comet 67P/C-G moved closer to the sun, more sunlight reached the space vehicle, allowing it to power up and come back online. Philae then sent something to Rosetta, which passed on the information back to Earth.
“We only received the information for about 85 seconds, but that's enough to let us know it is alive and well,”says Stephan Ulamec, who works for the European Space Agency.“We hope to work out where it landed exactly on the 4-kilometer-wide comet. Now we plan to change how Rosetta moves so that Philae can keep on communicating and receiving instructions.”
Here are opportunities for international student volunteers. You can apply your academic training to overall development programs in service. Group service options are explained here.
Elder assistance Assist at the elder care center with activities such as playing cards and swapping stories. And you can join the elders on day-trips to the local museums, parks and grocery stores. Or, help prepare, serve and deliver meals at the assisted living center on the reservation. Blackfeet Reservation Montana September 15—September 21 |
Early Childhood Education Inspire children 1 to 5 years old through doing arts and crafts, reading storybooks, playing with toys, teaching hand washing with soap and water, and more. As a volunteer in the Cook Islands, you make contributions to the future through the youngest of citizens. Rarotonga Cook Islands August 17—August 24 |
Health Care Health care volunteers are needed at the clinic, serving all of the 1,300 children of the community. To help specialists, volunteers can be engaged to help sort medicines, make cotton balls and take children's temperature, etc. Health Care volunteers do not need any special permit or license. Lima September 3—September 24 |
Teach English Started in 1996, the program is to teach English in China and build a bridge of friendship and respect. Here you teach English lessons to secondary or university students with all levels of language abilities. After school, you can join your students in a number of cultural activities to extend the day's English lessons. Xi'an August 22—August 28 |
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