阅读下面的短文,从短文后所给的六个选项中选出五个可以填入空白处的最佳选项。
When you want to go somewhere, you can easily find your way by using a map app on your smartphone. (1) But do you know how it all happened? (2) A satnav system(卫星导航系统) uses groups of satellites to find out where people are. It sends information to a receiver, like a smartphone. On June 23, 2020, the last satellite of China’s BeiDou Navigation Satellite System was sent up into space. China’s own navigation system was finally completed. It is one of the four navigation systems in the world. (3)
On July 31, BeiDou started providing full-scale(全方位的) global services. (4) Since 2000, China has launched BeiDou satellites. BeiDou can be used in areas that include farming, public services and business. It has a positioning accuracy(精度) of under 10 metres. People along the Yangtze River used a BeiDou-based device to monitor flood waters as well. (5) It allows people to send text messages up to 1,200 Chinese characters in length when mobile phone services are broken by natural disasters.
A. BeiDou also has a special messaging ability.
B. But today you don’t need to take a map any more.
C. Along with BeiDou, there are other three navigation systems: the US’s GPS, Russia’s GLONASS and the European Union’s Galileo.
D. This is possible with the help of satnav systems.
E. More than 120 countries and areas are now using BeiDou services.
F. Your smartphone “knows” where you are and can tell you where to go.
When you want to go somewhere, you can easily find your way by using a map app on your smartphone. (1) But do you know how it all happened? (2) A satnav system(卫星导航系统) uses groups of satellites to find out where people are. It sends information to a receiver, like a smartphone. On June 23, 2020, the last satellite of China’s BeiDou Navigation Satellite System was sent up into space. China’s own navigation system was finally completed. It is one of the four navigation systems in the world. (3)
On July 31, BeiDou started providing full-scale(全方位的) global services. (4) Since 2000, China has launched BeiDou satellites. BeiDou can be used in areas that include farming, public services and business. It has a positioning accuracy(精度) of under 10 metres. People along the Yangtze River used a BeiDou-based device to monitor flood waters as well. (5) It allows people to send text messages up to 1,200 Chinese characters in length when mobile phone services are broken by natural disasters.
A. BeiDou also has a special messaging ability.
B. But today you don’t need to take a map any more.
C. Along with BeiDou, there are other three navigation systems: the US’s GPS, Russia’s GLONASS and the European Union’s Galileo.
D. This is possible with the help of satnav systems.
E. More than 120 countries and areas are now using BeiDou services.
F. Your smartphone “knows” where you are and can tell you where to go.
答案：(1) F (2) D (3) C (4) E (5) A
解析：
我们可以根据上下文逻辑逐一匹配选项：
1. 空前句提到“你可以用智能手机上的地图应用轻松找到路”，F选项“你的智能手机‘知道’你在哪里，还能告诉你要去哪里”是对手机导航功能的补充说明，衔接自然。
2. 空前句提出疑问“但你知道这一切是怎么发生的吗？”，空后开始介绍卫星导航系统的工作原理，D选项“这在卫星导航系统的帮助下才得以实现”既回应了前文疑问，又自然引出下文对卫星导航系统的介绍。
3. 空前句提到“它是世界四大导航系统之一”，C选项“除北斗之外，另外三大导航系统分别是美国的GPS、俄罗斯的GLONASS以及欧盟的Galileo”刚好对应“四大导航系统”的信息，逻辑连贯。
4. 空前句提到“7月31日，北斗开始提供全方位全球服务”，E选项“目前已有超过120个国家和地区使用北斗服务”是对北斗全球服务落地情况的补充说明，契合语境。
5. 空后内容介绍了北斗在移动信号因自然灾害中断时可以发送长文本信息的功能，A选项“北斗还具备特殊的信息传送能力”总领后文内容，引出下文的具体说明。
剩余选项B和上下文语境无法匹配，因此不选。
1. 空前句提到“你可以用智能手机上的地图应用轻松找到路”，F选项“你的智能手机‘知道’你在哪里，还能告诉你要去哪里”是对手机导航功能的补充说明，衔接自然。
2. 空前句提出疑问“但你知道这一切是怎么发生的吗？”，空后开始介绍卫星导航系统的工作原理，D选项“这在卫星导航系统的帮助下才得以实现”既回应了前文疑问，又自然引出下文对卫星导航系统的介绍。
3. 空前句提到“它是世界四大导航系统之一”，C选项“除北斗之外，另外三大导航系统分别是美国的GPS、俄罗斯的GLONASS以及欧盟的Galileo”刚好对应“四大导航系统”的信息，逻辑连贯。
4. 空前句提到“7月31日，北斗开始提供全方位全球服务”，E选项“目前已有超过120个国家和地区使用北斗服务”是对北斗全球服务落地情况的补充说明，契合语境。
5. 空后内容介绍了北斗在移动信号因自然灾害中断时可以发送长文本信息的功能，A选项“北斗还具备特殊的信息传送能力”总领后文内容，引出下文的具体说明。
剩余选项B和上下文语境无法匹配，因此不选。