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游客2024-08-10  10
问题
                    Second Probe to Moon This Year
    China plans to launch Chang’e-2, the country’s second lunar probe, at the end of 2010, space authorities announced recently.
    The design and production of the Chang’e-2 is complete, and the lunar orbiter is undergoing ground tests, the State Administration of Science, Technology and Industry for National Defense said in a news release.
    Chang’e-2 is expected to test the soft-landing technological capability of the Chang’e-3 and provide high-resolution images of the landing area, the administration said. "Progress on six key technologies used by Chang’e-2 has been made, including lunar capture, orbit control and research on high-resolution stereo cameras," the administration’s spokesman said. Ye Peijian, chief designer of the nation’s first lunar probe, had told China daily earlier that the launch was expected in October.
    The administration said that Chang’e-3, the country’s lunar lander and rover, is also well on the way towards liftoff. The project is now in the prototype stage. Chang’e-2 and Chang’e-3 are part of the second phase of the country’s lunar exploration programme, which consists of three stages—" orbiting" , " landing" and " returning. "
    Ye said earlier that launched in October 2007, and ended its 16-month mission on March 1, 2009, Meanwhile, Chian’s manned space project is also likely to see a breakthrough this year, a top scientist said.
    Qi Faren, chief designer of the Shenzhou spacecraft, told the Guangzhou Daily that Tiangong-1, or Heavenly Palace-1, a spacecraft that will test docking technology and prepare for the future construction of space laboratories, will be launched by the end of this year, at the earliest. According to the official website of China’s manned space programme, www. cmse. gov. cn, the launch date of Tiangong-1 is set for between late 2010 and early 2011.
    Within two years of the launch of Tiangong-1, China will launch shenzhou-VDI, Shenzhou-IX and Shenzhou-X spaceships, to dock with Tiangong-1, the website said.
    Two space laboratories, Tiangong- E and Tiangong- HI, will follow, and china aims to build its own space station by the year 2020, the website said.
    China became the third nation—after the US and Russia—to send people into space when Yang Li Wei went into orbit aboard the spaceship shenzhou-V on October 15, 2003. Three other astronauts were sent into space in Shenzhou-VH and carried out the country’s first space walk in September 2008.
    Shen Liping, deputy chief designer of China’s manned space programme, was quoted by the Guangzhou Daily as saying that China’s first woman astronaut will go into outer space sooner than the targeted 10 years from now. [br] China’s lunar exploration programme consists of three stages; Chang’e-2and Chang’e-3 are part of the______phase, which is also the "______" phase.
选项
答案 second；landing
解析 (由第四段最后一句可知，三个阶段分别为环绕、降落、返回，嫦娥二号和嫦娥三号均属于第二阶段。)
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