备战2022年中考英语考前时事热点话题阅读+题型专练(全国通用) 热点13 中国北斗卫星导航系统

这是一份备战2022年中考英语考前时事热点话题阅读+题型专练(全国通用) 热点13 中国北斗卫星导航系统，文件包含热点13中国北斗卫星导航系统解析版-备战2022年中考英语考前时事热点话题阅读+题型专练全国通用doc、热点13中国北斗卫星导航系统原卷版-备战2022年中考英语考前时事热点话题阅读+题型专练全国通用doc等2份试卷配套教学资源，其中试卷共26页， 欢迎下载使用。

一、阅读理解
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At the mment f 9:43 a. m., n Tuesday, June 23rd, 2020, at the Xichang Satellite Launch Center (卫星发射中心) in Sichuan Prvince, the last satellite f the third-generatin netwrk (第三代导航系统) was sent int space. It is the 55th member in the family f BeiDu. It belngs t China’s Beidu Navigatin Satellite System (BDS 北斗卫星导航系统). S far, all the members f Beidu, 59 satellites, have been launched int space. With the develpment f China, we have already wned three ther famus satellite launch centers — Jiuquan, Taiyuan and Wenchang.
Nw, the satellite wrks well with ther Beidu satellites tgether. S far, China has cmpleted the third-generatin netwrk f China’s BDS. It was a new milestne in the natin’s space research wrk. The launch shwed that ur cuntry has cmpleted ur largest space-based system. It’s ne f fur internatinal net-wrks, including the United States’ GPS, Russian’s GLONASS and the Eurpean Unin’s Galile.
BDS has been widely used as public resurces in ur daily life. It has been shared by the whle wrld. It will prvide mre services arund the wrld. BDS is the cmmn wealth f the develpment f human beings.
1. Where did China launch the last satellite f the third-generatin netwrk?
A. Xichang.B. Jiuquan.C. Wenchang.
2. Hw many members are there in the family f Beidu?
A. 5.B. 55.C. 59.
3. What des the underlined wrd “milestne” mean in Chinese?
A. 起点B. 里程碑C. 事业
4. GLONASS belngs t ________.
A. ChinaB. RussiaC. the United States
5. Accrding t the passage, we can knw that ________.
A. BDS has been shared nly by Chinese
B. The last satellite f BDS was launched at 9:43 p. m., June 23rd, 2020
C. S far, China has cmpleted the third-generatin netwrk f China’s BDS
【答案】1. A 2. B 3. B 4. B 5. C
【解析】本文介绍了中国第三代北斗卫星导航系统的发射情况，以及中国北斗卫星导航系统的发展过程。
1. 细节理解题。根据第一段第一句“At the mment f 9:43 a. m., n Tuesday, June 23rd, 2020, at the Xichang Satellite Launch Center (卫星发射中心) in Sichuan Prvince, the last satellite f the third-generatin netwrk (第三代导航系统) was sent int space.”可知，中国第三代卫星网络的最后一颗卫星在四川省西昌卫星发射中心发射升空。故选A。
2. 细节理解题。根据第一段第二句“It is the 55th member in the family f BeiDu.”可知，它是北斗大家庭的第55个成员。由此说明北斗系统有55颗卫星。故选B。
3. 词义猜测题。根据下文“The launch shwed that ur cuntry has cmpleted ur largest space-based system.”可知，这次发射表明我国已经完成了我国最大的太空系统。由此推测此处表明这是硏究太空工作的一个新的里程碑，符合语境。 milestne指代里程碑。故选B。
4. 细节理解题。根据第二段最后一句“It’s ne f fur internatinal net-wrks, including the United States’ GPS, Russian’s GLONASS and the Eurpean Unin’s Galile.”可知， GLONASS是俄罗斯的。故选B。
5. 细节理解题。根据第二段第二句“S far, China has cmpleted the third-generatin netwrk f China’s BDS.”可知，目前，中国已建成北斗系统第三代网络。故选C。
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China builds Beidu
On May 17, 2019 China launched a new satellite at the Xichang Satellite Launch Center(西昌卫星发射中心).It was the frty-fifth Beidu satellite that China had sent int space.
S what is Beidu?
Beidu is psitining system (定位系统). It is develped by China. China is the third cuntry in the wrld t have its wn psitining system. With Beidu, China n lnger has t depend n freign systems. This is very imprtant fr natinal safety.
Wrk n Beidu began in 1994. Hwever, the first tw Beidu satellites, were nt sent int space until 2000. Since then, China has launched dzens f Beidu satellites. These satellites have frmed a glbal netwrk. Nw, China is further imprving the system. It plans t launch（发射）ten mre Beidu satellites. If it ges well, Beidu will be cmpleted befre 2020.
The cmplete Beidu will be mre pwerful than any existing（现存的）psitining system all ver the wrld. Yang Changfeng is a designer f Beidu. He says the system can ntice the sway （摇摆）f a building in strng winds.
Beidu has bught many advantages t ur lives. In Shanghai, thusands f buses have been using Beidu. When we are waiting fr a bus, we can knw when it is abut t cme.
Many smart phnes have als been using Beidu, “ Many peple say, let me turn n my GPS. In fact, their phnes are using Beidu, ” jkes a salespersn in Beijing.
6. Accrding t the article, hw many cuntries had develped their wn psitining systems befre China?
A. Tw.B. Three.C. Frty-fiveD. Frty-fur.
7. When did China send the first tw Beidu satellites int space?
A. In1994.B. In 2000.C. In 2008.D. In 2018.
8. What can we learn frm the last paragraph?
A. Beidu is very pwerful.B. Many peple have been using Beidu.
C. GPS can be mre pwerful than Beidu.D. Few smart phnes have been using Beidu.
9. Which f the fllwing is true?
A. The Beidu system has already been cmpleted since May 17,2019.
B. China didn't have t depend n freign psitining systems befre.
C. The Cmpleted Beidu system will have 45 satellites in all.
D. Beidu will be the mst pwerful psitining system in the wrld.
【答案】6. A 7. B 8. B 9. D
【解析】本文主要讲述了北斗导航系统——我国自行研制的卫星导航系统。该系统于1994年开始研发，到目前为止，已成为我国最优秀的卫星导航系统。这从根本上改变了我国对国外卫星导航系统的依赖。
6. 细节理解题。根据第三段中的“China is the third cuntry in the wrld t have its wn psitining system.”可知，中国是世界上第三个拥有自己的定位系统的国家，也就是说在中国之前拥有定位系统的国家有两个。故选A。
7. 细节理解题。根据第四段中的“Hwever, the first tw Beidu satellites, were nt sent int space until 2000.”可知，直到2000年，中国才首次将两枚“北斗”卫星发射进入太空。故选B。
8. 段落大意题。根据最后一段中的“Many smart phnes have …jkes a salespersn in Beijing.”可知，人们常说的打开GPS，可能就是在使用“北斗”卫星导航的功能。故选B。
9. 细节理解题。根据第四段中“If it ges well, Beidu will be cmpleted befre 2020.”可知，如果进展顺利，北斗将在2020年前建成，但是没有确切的日期，故A错误；根据第三段中“With Beidu, China n lnger has t depend n freign systems.”可知，没有北斗之前，中国一直是依赖国外的定位系统，故B项错误；根据第四段中“It plans t launch（发射）ten mre Beidu satellites.”可知，完整的北斗导航系统不止45颗卫星，故C项错误；根据第五段中“The cmplete Beidu will be mre pwerful than any existing（现存的）psitining system all ver the wrld.”可知，完整的北斗导航系统是最好的定位系统，故选D。
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When yu want t g smewhere, yu can easily find yur way by using a map app n yur smartphne. Yur smartphne “knws” where yu are and can tell yu where t g.
This is pssible with the help f satellite navigatin (satnav) systems. A satnav system uses grups f satellites t find ut where peple are. It sends infrmatin t a receiver, such as a smartphne. The mre satellites a system has, the mre accurate (精确的) it is.
On June 23, the last satellite f China’s Beidu Navigatin Satellite System was launched int space. Beidu, China’s wn satnav system was finally cmpleted. It is ne f fur glbal navigatin systems, alng with US’ GPS, Russia’s GLONASS and the Eurpean Unin’s Galile.
On July 31, Beidu started prviding full-scale glbal services. Mre than 120 cuntries and regins are nw using Beidu services.
Since 2000, China has launched 59 Beidu satellites. Beidu can be used in areas that include farming, public services and business. It has a psitining (定位) accuracy f under 10 meters. This summer, peple alng the Yangtze River used Beidu-based device t mnitr fldwaters in real-time with an accuracy f just a few centimeters.
10. Beidu is the ________ glbal navigatin system.
A. firstB. secndC. thirdD. furth
11. Which f the fllwing is TRUE abut Beidu?
A. It nly wrks in China.B. Its newest satellites are mre accurate.
C. It started wrking n June 23.D. It will have mre satellites in the future.
12. What des a satnav system d?
A. It helps peple plan trips.B. It helps peple shp nline.
C. It lets peple send text navigate.D. It makes peple’s phnes smarter.
13. What can we learn frm the passage?
A. Beidu can be used in many areas.
B. Beidu can mnitr everything n Earth.
C. There’re 60 Beidu satellites abve Earth
D. Beidu will replace mbile phne netwrks.
【答案】10. D 11. B 12. C 13. A
【解析】本文是一篇说明文，主要讲了卫星导航系统，并着重介绍了中国的北斗卫星导航系统。
10. 细节理解题。根据“It is ne f fur glbal navigatin systems, alng with US’ GPS, Russia’s GLONASS and the Eurpean Unin’s Galile”可知，它是第四个全球导航系统，故选D。
11. 推理判断题。根据最后一段的介绍“It has a psitining (定位) accuracy f under 10 meters. This summer, peple alng the Yangtze River used Beidu-based device t mnitr fldwaters in real-time with an accuracy f just a few centimeters.”可知，最新的卫星越来越精确了，故选B。
12. 细节理解题。根据“Yur smartphne “knws” where yu are and can tell yu where t g”及“This is pssible with the help f satellite navigatin (satnav) systems”可知，卫星导航系统可以帮助人们导航，故选C。
13. 推理判断题。根据“Beidu can be used in areas that include farming, public services and business”可知，北斗可以被用于许多领域，故选A。
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Many years ag, peple relied n the sun, the mn and stars t find their way arund. Later, the cmpass (指南针) was intrduced. And nw, we have satnav (卫星导航) systems t guide us. A satnav system uses grups f satellites t shw the user’s lcatin. They send infrmatin t a receiver, such as a smart phne, t shw us where we are.
The earliest built satnav system is the Glbal Psitining System, which belngs t the US. Then there is Russia’s Glbal Navigatin (导航) Satellite System, the Eurpean Unin’s Galile and China’s wn satellite navigatin system, BeiDu.
On Octber 14, 2017, an ARJ21-700 plane, which was the first dmestically-prduced jet (国产喷气式飞机) equipped with the BeiDu navigatin system, successfully cmpleted a test flight. The results shwed the perfrmance f the system develped by China matches that f similar systems prduced abard, accrding t the Cmmercial Aircraft Crpratin f China.
Since its intrductin in 2000, the Beidu navigatin system has seen increasing numbers f applicatins linked t everyday life, frm shared bikes t farming.
When it cmes t shared bikes, smart lcks that supprt BeiDu chips ffer mre accurate psitining than thers, making it easier t find a bike.
Farmers can use BeiDu-enabled tractrs t plw (犁) the sil and use unmanned aircraft with BeiDu t sw seeds, which can imprve efficiency and make better use f resurces. BeiDu’s farming applicatins have spread frm Heilngjiang prvince t Beijing, Lianing, Shanxi, Hubei and ther regins acrss China.
With its many uses, the Beidu navigatin system is even playing a big rle in the Belt and Rad Initiative (一带一路). “T date, the BeiDu system has cvered mst parts f the Asia-Pacific regin (地区), as well as cuntries alng the Silk Rad Ecnmic Belt and the 21stCentury Maritime Silk Rad” said Yang Changfeng, Chief designer f the BeiDu system.
Tday, there are mre than 20 BeiDu satellites abve ur heads, and China plans t launch even mre this year t expand the BeiDu netwrk t better serve the Belt and Rad Initiative.
“As BeiDu expands its verseas reach, it will be increasingly ppular in the lgistics (物流) industry,” said Mia Qianjun, secretary-general f the navigatin services assciatin. “Ships, fr example, can use it t psitin themselves while sailing acrss ceans t Eurpean cuntries, n lnger limited t Sutheast Asian regins in the near future.”
14. What is the purpse f the first tw paragraphs?
A. T cmpare sme mdern satnav systems.
B. T describe the benefits f satnav systems.
C. T tell us hw satnav systems were created.
D. T intrduce sme satnav systems and hw they wrk.
15. What can we knw abut the BeiDu navigatin system accrding t the article?
A. It was used successfully in a new jet plane.
B. It is mre pwerful than ther satnav systems.
C. It was intrduced int China n Octber 14, 2017.
D. It wasn’t used in ur everyday life until recently.
16. Accrding t the article, the BeiDu navigatin system is already widely used fr _________.
A. plwing the sil and swing seeds
B. imprving the efficiency f netwrks
C. prducing mre smart lcks fr shared bikes
D. navigating ships acrss ceans t Eurpean cuntries
17. What is Mia Qianjun’s attitude tward the future f the BeiDu system?
A. wrriedB. uncertainC. psitiveD. dubtful
18. Where des the passage prbably cme frm?
A. A gvernment reprt.B. A science magazine.
C. A strybk.D. A science fictin.
【答案】14. D 15. A 16. A 17. C 18. B
【解析】这篇文章介绍了中国的卫星导航系统——北斗卫星系统。文章介绍了北斗卫星在生活中起到的重要作用。
14. 段落大意题。根据And nw, we have satnav (卫星导航) systems t guide us. 现在我们有了自己的卫星导航，A satnav system uses grups f satellites t shw the user’s lcatin. 卫星导航来展示使用者的位置，The earliest built satnav system is the Glbal Psitining System, which belngs t the US. 最早的的卫星导航是属于美国GPS，Then there is Russia’s Glbal Navigatin (导航) Satellite System, 然后俄罗斯有了全球卫星导航，the Eurpean Unin’s Galile and China’s wn satellite navigatin system, BeiDu.欧洲的伽利略联盟和中国的北斗；可知前两段的主要目的是介绍一些卫星导航系统和他们的功能；故选D。
15. 细节理解题。根据On Octber 14, 2017, an ARJ21-700 plane, which was the first dmestically-prduced jet (国产喷气式飞机) equipped with the BeiDu navigatin system, successfully cmpleted a test flight在2017年十月14日，国产第一个装有北斗卫星导航的喷气式飞机ARJ21-700成功完成了试飞；故选A。
16. 细节理解题。根据Farmers can use BeiDu-enabled tractrs t plw (犁) the sil and use unmanned aircraft with BeiDu t sw seeds农民能使用北斗导航拖拉机犁地，用带有北斗导航的无人机播种；故选A。
17. 观点态度题。根据it will be increasingly ppular in the lgistics (物流) industry它会在物流产业也来越受欢迎，Ships, fr example, can use it t psitin themselves while sailing acrss ceans t Eurpean cuntries, n lnger limited t Sutheast Asian regins in the near future.在不久的将来轮船穿越海洋到欧洲国家时，能确定自己的位置，不再限制于东南亚地区；可推测他对北斗系统的前景非常乐观；故选C。
18. 推理判断题。根据文章介绍了中国的卫星导航系统——北斗卫星系统，可推测文章可能来自一本科学杂志；A gvernment reprt一个政府报告；A science magazine一本科学杂志；A strybk一本故事书；A science fictin一本科幻小说；故选B。
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Hw d peple find their ways? At first, peple did it by lking at the sun, the mn and stars. Later, we started t use the cmpass(指南针).Tday, there are navigatin satellite systems(卫星导航系统).
A navigatin satellite system uses grups f satellites(卫星), they send infrmatin t a receiver, such as yur smart phne. Then they can find where yu are.
The earliest navigatin system is the Glbal Psitining System(GPS)（全球定位系统） f the United States. The US has put 24 satellites int space t make sure GPS can lcate a persn crrectly and glbally. Russia's GLONASS and Eurpean Unin's Galile can als wrk glbally.
The BeiDu Navigatin Satellite System (BDS) is China's hmegrwn navigatin system. It was set up in 2000. On June 23rd 2020, the last satellite f China’s Beidu Navigatin Satellite system was sent int space. Beidu, China’s wn navigatin system, was finally cmpleted. On July 31, Beidu started prviding full-scale glbal services(全面的全球服务). Mre than 120 cuntries and regins (地区) are nw using Beidu services. Since 2000, China has sent 55 Beidu satellites.
BeiDu can find yu wherever yu are. It helps yu g faster by finding shrtcuts and using crrect directins. When yu are in truble and call the plice, they will knw exactly where yu are if yu have a smart phne that uses BeiDu.
BeiDu als has a unique messaging ability. It allws peple t send text messages up t 1,200 Chinese wrds when mbile phne services are interrupted(中断) because f sme reasns.
19. Hw did peple find their ways at first accrding t this passage?
A. By lking at the sun, the mn and stars.
B. By using the navigatin satellite systems.
C. By lking at the cmpass.
20. What des a navigatin systems d?
A. It helps peple plan trips.
B. It helps peple find where they are.
C. It lets peple send text messages
21. Hw many navigatin satellite systems are mentined in the passage?
A. TwB. ThreeC. Fur
22. What des the underlined wrd "lcate "in the third paragraph mean?
A. 位于B. 设置C. 定位
23. What d yu knw abut the BeiDu system?
A. It was set up befre GPS.
B. BeiDu systems were cmpleted in June.
C. Only China can use BeiDu system services.
【答案】19. A 20. B 21. C 22. C 23. B
【解析】本文介绍了卫星导航系统的发展进程以及中国自主研发的导航系统——北斗卫星导航系统。
19. 细节理解题。根据“At first, peple did it by lking at the sun, the mn and stars”，可知，起初人们通过看太阳，月亮和星星寻找方向，故选A。
20. 细节理解题。根据“Then they can find where yu are”，可知，卫星导航系统帮助人们找到他们在哪里，故选B。
21. 细节理解题。根据“The earliest navigatin system is the Glbal Psitining System(GPS)（全球定位系统） f the United States”“Russia's GLONASS and Eurpean Unin's Galile can als wrk glbally”及“The BeiDu Navigatin Satellite System (BDS) is China's hmegrwn navigatin system”，可知，本文共提到了四个卫星定位系统，故选C。
22. 词义猜测题。根据“The US has put 24 satellites int space t make sure GPS can lcate a persn crrectly and glbally”，可知，美国向太空发射了24颗卫星，以确保全球定位系统能够在全球范围内准确定位一个人，所以lcate表示“定位”，故选C。
23. 细节理解题。根据“On June 23rd 2020, the last satellite f China’s Beidu Navigatin Satellite system was sent int space. Beidu, China’s wn navigatin systems, was finally cmplete”，可知，2020年6月北斗卫星定位系统最终完成，故选B。
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The launch f BeiDu Navigatin Satellite System(北斗卫星导航系统) n June 23rd 2020 marks the cmpletin f China’s self-develped and perated BeiDu netwrk, ne f the fur glbal navigatin netwrks, alng with the USA’s GPS, Russia’s GLONASS and the Eurpean Unin’s Galile. It als marks the end f the cuntry’s dependence n America fr an imprtant service: lcatin data.
GPS was the earliest netwrk t prvide glbal lcatin data. The system is wned by America’s gvernment, which means American fficials culd decide t turn ff r dwngrade the signals cming frm GPS satellites. The main purpse f building BDS is t give China full cntrl ver a navigatin system.
Wrk n BDS began in the 1990s and included three phases. The first phase was abut building the BeiDu-1 system, which started in 1994 and in 2000 prvided psitining, shrt message telecmmunicatin and timing services in China. The secnd phase-the BeiDu-2 system, which started in 2004, was cmpleted in 2012. The BeiDu-2 grund system nt nly serves China but als prvides users in the Asia-Pacific regin with mre than ten satellites and ffered services abve. The third phase invlved the develpment f the BeiDu-3 system, which started in 2009 and was cmpleted in June, 2020. As ne f the IGE members, China is always cperating with freign cuntries and use BDS t serve glbal users with high perfrmance and high quality in scientific research.
BeiDu’s satellites are mre advanced than thse f GPS. In the Asia-Pacific regin, BeiDu claims a 10-cm accuracy, cmpared with 30 cm psitining withut ding wrng ffered by GPS. America began upgrading its system in 1997 but it may take anther 15 years t finish the prject.
24. Which f the fllwing name is different frm the ther three accrding t the passage?
A. BDS.B. GPS.C. Galile.D. Russia.
25. What’s the imprtance f the successful launch f BDS?
A. It means BDS will be the earliest netwrk t prvide glbal lcatin data.
B. It means BDS will be the furth netwrk t prvide glbal lcatin data.
C. It means China can fully take charge f a glbal navigatin satellite system.
D. It means we can stp American fficials frm turning ff the satellites signals.
26. What des Paragraph 3 mainly talk abut?
A. It talks abut three phases f wrk n BDS.B. It tells us the first phase was pretty gd.
C. It suggests mre than ten satellites help.D. It mainly intrduces a scientific research.
27. What des the underlined wrd “accuracy” mean in the last paragraph?
A. Crrect timing.B. Crrect psitining.C. Wrng messages.D. Right rders.
28. What can we infer frm the passage?
A. The cmpletin f BeiDu netwrk puts China ahead technlgically.
B. It may take the USA mre than 30 years t cmplete the upgrade f GPS.
C. America’s GPS is mre advanced than BeiDu in the Asia-Pacific regin.
D. There will be mre cuntries depending n BeiDu system in the future.
【答案】24. D 25. C 26. A 27. B 28. A
【解析】本文主要介绍了有关北斗卫星导航系统的情况。
24. 细节理解题。根据“perated BeiDu netwrk, ne f the fur glbal navigatin netwrks, alng with the USA’s GPS, Russia’s GLONASS and the Eurpean Unin’s Galile”可知，GPS，BDS，Galile都是卫星导航系统，D选项Russia是国家名称，故选D。
25. 推理判断题。根据“The system is wned by America’s gvernment, which means American fficials culd decide t turn ff r dwngrade the signals cming frm GPS satellites. The main purpse f building BDS is t give China full cntrl ver a navigatin system”可知，这意味着中国可以完全掌控全球卫星导航系统，故选C。
26. 主旨大意题。根据“Wrk n BDS began in the 1990s and included three phases”可知，本文主要介绍BDS工作的三个阶段，故选A。
27. 词义猜测题。根据“In the Asia-Pacific regin, BeiDu claims a 10-cm accuracy, cmpared with 30 cm psitining withut ding wrng ffered by GPS”可知，此处是将北斗与GPS的定位准确度相比较，北斗的定位精确度更高，所以accuracy指“正确定位”，故选B。
28. 推理判断题。根据“In the Asia-Pacific regin, BeiDu claims a 10-cm accuracy, cmpared with 30 cm psitining withut ding wrng ffered by GPS”可知，北斗比GPS更先进，在定位精确度上为10厘米，由此可推断，北斗网络的建成使中国在技术上处于领先地位，故选A。
二、完型填空
Mst peple have map apps n their phnes that can shw their lcatins and guide them t where they want t g. But hw d these app systems knw yur 29 at any time r place? They find yu by using satellite navigatin (satnav) systems (卫星导航系统).
A satnav system uses grups f satellites t find the users lcatins. This lcatin infrmatin is then sent t a 30 , such as a smart phne.
The first satnav system is the Glbal Psitining System (GPS) (全球定位系统), which belngs t the United States. The system is the wrld’s 31 satnav system. But China’s satellites are imprtant 32 imprving the satnav system. Beidu, has vertake(超过）GPS in size, Japan’s Nikkei Asian Review reprted.
China 33 Beidu’s first navigatin satellite int space in 2000. China als became the 34 cuntry t build a satnav system after the United States and Russia, Peple’s Daily reprted. Over 30 35 in Africa and the Middle East are 36 Beidu system right nw.
With its wrld-leading technlgy, Beidu is leading Chinese peple t a better life 37 playing imprtant 38 in different areas, accrding t Xinhua News.
Fr example, ver 6.2 millin vehicles in China are using Beidu fr navigatin, accrding t a reprt n the Beidu system’s cnstructin(建造）and develpment.
At the newly-built Beijing Daxing Internatinal Airprt, Beidu has been used t keep track f(追踪）lading and unlading vehicles 39 and utdrs. When the 40 pens, each baggage cart has Beidu navigatin equipment t help passengers get their luggage 41
Fr a satnav system, the 42 f satellites is imprtant fr imprving the system’s psitining accuracy(定位精度）. The mre satellites, the 43 accurate the psitining is. The satellite navigatin system is useful in many ways.
29. A. lcatinsB. systemsC. technlgyD. numbers
30. A. placeB. receiverC. citizenD. cuntry
31. A. famusB. carefulC. imprtantD. leading
32. A. withB. fC. tD. fr
33. A. supprtedB. prvidedC. sentD. held
34. A. firstB. secndC. thirdD. furth
35. A. radsB. citiesC. cuntriesD. prvinces
36. A. usingB. sellingC. makingD. shwing
37. A. inB. nC. tD. by
38. A. gamesB. placesC. rlesD. parts
39. A. insideB. indrsC. utsideD. utlks
40. A. supermarketB. airprtC. schlD. shp
41. A. fasterB. slwerC. biggerD. smaller
42. A. timeB. placeC. qualityD. number
43. A. neB. everyC. mreD. less
【答案】29. A 30. B 31. D 32. D 33. C 34. C 35. C
36. A 37. D 38. C 39. B 40. B 41. A 42. D 43. C
【解析】文章介绍了地图软件的应用以及GPS定位系统以及北斗定位系统的介绍及应用。
29. 句意：但是这些应用程序系统如何知道你在任何时间或地点的位置？
lcatins位置；systems系统；technlgy技术；numbers数字；根据句意理解及前句Mst peple have map apps n their phnes that can shw their lcatins and guide them t where they want t g.以及后句A satnav system uses grups f satellites t find the users lcatins.可知，这里指的是“位置”，故选A。
30. 句意：然后，这些位置信息被发送到接收器，例如智能手机。
place地方；receiver接收器；citizen公民；cuntry国家；根据句意理解及后句such as a smart phne.可知，这里指的是“接收器”，故选B。
31. 句意：该系统是世界领先的卫星导航系统。
famus著名的；careful认真的；imprtant重要的；leading主导的；主要的；根据句意理解及前句The first satnav system is the Glbal Psitining System (GPS) (全球定位系统), which belngs t the United States.以及常识可知，GPS现在是处于主导地位，所以这里应该表达“主要的”，故选D。
32. 句意：但是中国的卫星对于改进卫星导航系统非常重要。
with有；f……的；t朝，向；fr对于……来说；根据句意理解及后句Beidu, has vertake(超过）GPS in size, Japan’s Nikkei Asian Review reprted.可知，这里表达的是“对于改进卫星导航系统很重要”，故选D。
33. 句意：中国于2000年将北斗第一颗导航卫星送入太空。
supprted支持；prvided提供；sent发送；held举行；根据句意理解及空格后面Beidu’s first navigatin satellite int space in 2000可知，这里表达的是“发送”，故选C。
34. 句意：据《人民日报》报道，中国也成为继美国和俄罗斯之后第三个建立卫星导航系统的国家。
first第一；secnd第二；third第三；furth第四；根据句意理解及后句after the United States and Russia可知，这里表达的是“第三个国家”，故选C。
35. 句意：目前，非洲和中东地区有30多个国家正在使用北斗系统。
rads道路；cities城市；cuntries国家；prvinces省；根据句意理解及空格后的句子in Africa and the Middle East可知，这里指的是“国家”，故选C。
36. 句意：目前，非洲和中东地区有30多个国家正在使用北斗系统。
using使用；selling卖；making制作；shwing显示；根据句意理解及空格后的Beidu system可知，这里表达的是“正在使用”，故选A。
37. 句意：据新华社报道，北斗凭借其世界领先的技术，正通过在不同领域发挥重要作用，引领中国人民过上更美好的生活。
in在……里面；n在……上面；t朝，向；by通过；根据句意理解及空格后的部分playing imprtant ____ ___ in different areas可知，这里表达的是“通过”，故选D。
38. 句意：据新华社报道，北斗凭借其世界领先的技术，正通过在不同领域发挥重要作用，引领中国人民过上更美好的生活。
games游戏；places地方；rles角色；parts部分；根据句意理解可知，这里表达的是“扮演着重要的角色，起着重要的作用”，英语是play imprtant rles in…，故选C。
39. 句意：在新建的北京大兴国际机场，北斗已经被用来跟踪室内外的装卸车辆。
inside在里面；indrs室内；utside在外面；utlks前景，展望；根据句意理解及空格后的and utdrs可知，and前后要保持一致，所以这里表达的是“室内”，故选B。
40. 句意：当机场开放时，每辆行李车都有北斗导航设备。
supermarket超市；airprt机场；schl学校；shp商店；根据句意理解及前句At the newly-built Beijing Daxing Internatinal Airprt, Beidu has been used t keep track f(追踪）lading and unlading vehicles __ and utdrs.可知，这里表达的是“机场”，故选B。
41. 句意：帮助旅客更快地拿到行李。
faster更快的；slwer更慢的；bigger更大的；smaller更小的；根据句意理解及前句each baggage cart has Beidu navigatin equipment可知，这里表达的是“更快的找到行李”，故选A。
42. 句意：对于卫星导航系统，卫星数量对于提高系统的定位精度非常重要。
time时间；place地方；quality质量；number数量；根据句意理解及后句The mre satellites, the___ _ accurate the psitining is.可知，这里指的是“卫星的数量”，故选D。
43. 句意：卫星越多，定位就越准确。
ne一；every每个； mre更多的；less更少的；根据句意理解及前句Fr a satnav system, the __ ___ f satellites is imprtant fr imprving the system’s psitining accuracy.可知，这里表达的是“数量越多，准确度越高”，故选C。
三、短文填空
Tw mre Beidu satellites are sent int rbit n Dec 16, 2019.
Rme wasn’t built in a day.
Nearly tw decades have passed since China launched the first Beidu satellite in 2000. In that time, mre Beidu satellites 44. (send) int rbit, frming the Beidu Navigatin Satellite System. In late 2012, it 45. (begin) prviding psitining, navigatin, timing and messaging services t peple in China and ther parts f the Asia-Pacific regin.
46. the end f 2018, BDS started 47. (prvide ) glbal services. “This marks Beidu’s entry int a ‘glbal era’ 48. (frm) its ‘reginal era’,” BDS Spkespersn Ran Chengqi said at a news cnference.
Nw with tw mre Beidu satellites launched n Dec 16, 2019, BDS has 53 satellites in rbit – mre than US gvernment’s Glbal Psitining System (GPS), which has 31 active satellites. That launch means the cre f Beidu’s third-generatin netwrk is nw in place. It’s expected t 49. (great) imprve the system’s ability t serve users wrldwide.
Althugh a satellite-based navigatin system needs nly 24 satellites t run prperly, having 53 allws fr better cverage.
This is hw it wrks: A signal receiver n Earth – yur smartphne, fr example – measures its 50. (distant) frm at least three satellites by 51. (recrd) the amunt f time it takes t receive their signals. Then it can calculate its lcatin. With s many satellites, BDS can prvide a mre accurate calculatin. While GPS calculates lcatins t within a few meters, BDS reduces the errr t centimeters. This high-precisin service is 52. (use )fr land surveying, mapping, agriculture and autmated driving.
China is willing t share BDS with the wrld. Accrding t Ran, BDS prducts have been exprted t mre than 120 cuntries and regins. “The Beidu system will always adhere t the develpment cncept f ‘China’s Beidu, the wrld’s Beidu, and the first-class Beidu’, serving the wrld and benefiting mankind,” Ran tld reprters after the latest launch.
He added that future plans call fr a smarter and 53. (accessible) system with Beidu at its cre, t cme nline by 2035.
By then, we can prbably say that Rme has finally been built.
【答案】
44. were sent
45. began
46. At
47. t prvide
48. frm
49. greatly
50. distance
51. recrding
52. useful
53. mre accessible
【解析】本文主要介绍中国的北斗卫星系统，讲述了它的工作原理及未来的发展计划。
44. 句意：那时，更多的北斗卫星进入轨道，形成北斗导航卫星系统。
in that time在那时，常用于一般过去时；主语mre Beidu satellites是复数，而且是动作send的承受者，故此句应是一般过去时的被动语态，结构为were +dne；send过去分词sent。故填were sent。
45. 句意：2012年底，它开始为中国和亚太地区其他地区的人们提供定位、导航、计时和信息服务。
由时间状语“in late 2012”可知，此句应是一般过去时；begin开始，符合句意；begin ding sth.开始做某事，begin过去式began。故填began。
46. 句意：2018年底，BDS开始提供全球服务。
at the end f 在……末，后接时间/地点；表时间时常用于一般过去时或一般将来时，句首单词大写。故填At。
47. 句意：2018年底，BDS开始提供全球服务。
start t d sth.开始做某事，固定结构。故填t prvide。
48. 句意：这标志着北斗从‘区域时代’进入‘全球时代’。
此处应是固定短语frm…int…，意为“从……进入……”。故填frm。
49. 句意：它有望大大提高系统为全球用户提供服务的能力。
分析句子，空格处应是副词，修饰动词imprve。故填greatly。
50. 句意：……例如你的智能手机——通过记录接收信号所需的时间来测量它与至少三颗卫星的距离。
此处its作形容词性物主代词，后接名词；distant遥远的，形容词；distance距离，名词。故填distance。
51. 句意：……例如你的智能手机——通过记录接收信号所需的时间来测量它与至少三颗卫星的距离。
by是介词，后接动名词；by ding sth.通过做某事。故填recrding。
52. 句意：这项高精度服务对土地测量、测绘、农业和自动驾驶非常有用。
由系动词is可知，空格处应是形容词；be useful fr sth.表示“对……有用”。故填useful。
53. 句意：他补充说，未来的计划要求在2035年前建成一个以北斗为核心的更智能、更易访问的系统。
and表并列关系，smarter是形容词比较级，故空格处也用形容词比较级；accessible是多音节形容词，比较级加mre。故填mre accessible。