Moon to have its own GPS soon, Chinese scientists reveal plan
月球即将拥有自己的GPS,中国科学家透露计划
阅读下面短文,在空白处填入1个适当单词或括号内单词的正确形式。
Scientists in China are planning to send more than a dozen satellites around the moon 1 (get) accurate navigation data.The 2 (construct) of 21 satellites around the moon has been proposed by Beijing Institute of Spacecraft System Engineering. The scientists plan to build a navigation system around moon 3 gives real time data, according to a report.Satellite-based system can provide scientists 4 sub meter level high-precision location services, improve navigation and positioning accuracy, and can be 5 (wide) applied in multiple areas: transportation, surveying and mapping, deformation monitoring, oil and gas etc.The building of cislunar space infrastructure (CLSI) can provide basic and universal services for human 6 (activity) in the cislunar space, including data communications, position navigation and timing (PNT).It will also provide situation monitoring for the development of lunar space, which can meet 7 needs of follow-up major national lunar exploration projects, according to a paper 8 (publish) last month in the journal, Chinese Space Science and Technology.The plan is set to be executed in three phases and satellites 9 (deploy) in four types of orbits to maintain a sustainable and cost-effective design.Months before, China launched Queqiao-2, a communication relay satellite, in near-lunar space to support 10 (it) Chang’e-6 mission, which explored the far side of the moon.The satellite serves as a relay platform for the fourth phase of China’s lunar exploration program, providing communications services for Chang’e-4, Chang’e-6, Chang’e-7, and Long March-8 missions.
1. to get 考查非谓语动词。分析句子结构和句意可知,本空在句中作状语,表目的,故填动词不定式。
2. construction 考查名词。本空在句中作主语,表示“建设;建造”,故填名词。
3. that/ which 考查定语从句关系词。分析句子结构可知,本句为限制性定语从句,先行词moon指物,关系词代替先行词在从句中作主语,故填关系代词that或which。
4. with 考查介词。根据句意可知,此处是固定表达provide sb. with sth.,意为“提供;供应”。故填介词with。
5. widely 考查副词。分析句子结构可知,本空在句中作状语,修饰谓语,表“广泛地;范围广地”,故填副词。
6. activities 考查名词复数。activity意为“活动”,为可数名词,根据句意可知,此处指人类在月球空间的活动,表达的是复数含义,故填activities。
7. the 考查冠词。根据句意可知,此处指满足后续国家重大月球探测项目的需求,表达的是特指,故填定冠词the。
8. published 考查非谓语动词。分析句子结构可知,本空在句中作后置定语,修饰paper,因paper和动词publish之间是被动关系,故填过去分词。
9. will be deployed 考查时态语态。分析句子结构可知,本空在句中作谓语,因表将来,又因主语satellites和动词deploy之间是被动关系,故填一般将来时的被动语态。
10. its 考查物主代词。分析句子结构可知,本空在句中作定语,修饰Chang’e-6 mission,表所属关系,故填形容词性物主代词。
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中国的科学家正计划向月球周围发送十多颗卫星以获取准确的导航数据。
北京航天飞行器系统工程研究所提出了绕月建造21颗卫星的方案。根据报道,科学家们计划在月球周围建立一个能够提供实时数据的月球导航系统。 卫星系统可以为科学家们提供亚米级高精度定位服务,提升导航和定位精度,并可广泛应用于多个领域:交通运输、测绘、变形监测、石油和天然气等。 月球空间基础设施(CLSI)的建设可以为人类在月球空间的活动提供基础和通用服务,包括数据通信、位置导航和授时(PNT)。根据上个月发表在《中国空间科学与技术》杂志上的一篇论文,这一系统还将为月球空间的发展提供态势监测,可以满足后续国家重大月球探测项目的需求。 该计划将分三个阶段执行,卫星将部署在四种类型的轨道上,以保持可持续和具有成本效益的设计。几个月前,中国在近月空间发射了“鹊桥二号”通信中继卫星,以支持其探索月球背面的嫦娥六号任务。这颗卫星作为中国探月计划第四阶段的中继平台,为嫦娥四号、嫦娥六号、嫦娥七号和长征八号任务提供通信服务。
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