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China’s BeiDou Navigation Satellite System, whose positioning will reach 2.5 meters by 2020, will soon provide services to more countries.
A. accuracy B. category C. function D. reference
高三英语单项填空中等难度题查看答案及解析
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China’s BeiDou Navigation Satellite System, whose positioning ________ will reach 2.5 meters by 2020, will soon provide services for more countries.
A. accuracy B. category
C. function D. reference
高三英语单项填空中等难度题查看答案及解析
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China's Beidou Navigation Satellite System has started providing global services, ________ to become complete around 2020.
A. being scheduled B. scheduled C. to schedule D. scheduling
高三英语单项填空中等难度题查看答案及解析
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China’s Beidou global satellite navigation system will have been completed by 2020, ____ of more than 30 satellites.
A．consisting B．consisted C．to consist D．consists
高三英语单项填空中等难度题查看答案及解析
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China’s Beidou global satellite navigation system will have been completed by 2020, ________ of more than 30 satellites.
A．consisting B．consisted C．to consist D．consists
高三英语单项填空中等难度题查看答案及解析
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阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式。
Two new satellites of BeiDou Navigation(导航) Satellite System (BDS) 1. (send) into space on a Long March-3D carrier rocket from the Xichang Satellite Launch Center in Sichuan Province, China at 2:07 a.m. on November 19,2018. The satellites entered a Medium Earth orbit2. (safe) more than three hours later and will work with 17 other BDS-3 satellites already in space. They are also the 42nd and 43rd3. (member) of the BDS satellite family.
China launched these satellites with 4. aim of providing navigation services for countries and regions which participate in the Belt and Road Proposal by the end of 2018. “This is a key step for BDS developing 5. a Chinese experimental system to a regional and then a 6. (globe) navigation system,” said Yang Changfeng, chief designer of the BeiDou system. The positioning 7. (accurate) of the BDS-3 system has been improved to 2.5 meters to 5 meters, said Yang.
8. (name) after the Chinese term for the Plough, the BeiDou system has been serving China for 18 years 9. another six BDS-3 satellites will be put into the Medium Earth orbit from 2019 to 2020. The system is expected 10. (provide) first-class services around the globe by the end of 2020.
高三英语语法填空简单题查看答案及解析
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China launched its fifth Beidou orbiter into space on Sunday morning, moving it one step closer to its goal of building a navigation(导航) and positioning satellite network.
The Beidou, or Compass, system is being built to rival the US-developed GPS, the European Union's Galileo and Russia's Global Navigation Satellite System. It can allow travelers, drivers and military officials to know their locations.
The fifth orbiter was launched on top of a Long March 3A carrier rocket at 5:30 am on Sunday from Xichang of Southwest China's Sichuan province.
It is the third Compass satellite launched this year, following launches on Jan 17 and June 2.
The short interval of less than two months since the last launch demonstrated that "the country is stepping into a busy period of launching the Compass satellites", an unnamed official in charge of the project said last month.
The first two orbiters were launched in 2007 and 2009 respectively.
Sun Jiadong, the Beidou program's chief designer, said on June 21 in a TV interview that China would launch 13 to 15 Beidou navigation satellites into orbit by 2012 to form a network that provides regional service covering the neighboring areas.
And in about 10 years, the network would be expanded to include more than 30 satellites covering the globe, he said.
The system is a crucial part of the country's space infrastructure for providing navigation and positioning services in transportation, meteorology, petroleum prospecting, forest fire monitoring, disaster forecasting, telecommunications and public security.
In addition, a global positioning system is crucial to any country's national security and defense, said Ran Chengqi, an official in charge of the program, referring to the fact that the US initially built its GPS system for military purposes.
It is unimaginable for China to go without such a system, he said.
Earlier reports cited（引用） Song Xiaojun, a Beijing-based military expert, as saying that 90 percent of the world's current weapons systems need a global positioning system.
1.This news report was probably released________.
A．in January, 2010 B．in June, 2010 C．in July, 2010 D．in August, 2010
2.The Compass System is expected to finally cover________in the future.
A．China B．China and its neigh boring areas
C．Asia, Europe and Oceania D．the earth
3.At the very beginning, the GPS system was built to help________.
A．military officers to judge their locations B．travelers to know their locations
C．drivers to reach their destinations easily D．hunters to find wild animals smoothly
高三英语阅读理解简单题查看答案及解析
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Beijing—（13, July） China sent up a new data relay satellite（数据中继卫星）, Tianlian I-02, on Monday at the Xichang Satellite Launch Centre in South-western Sichuan province．The new satellite will promote the country's satellite communication network for space docking（对接）．
The satellite was launched on a Long-March-3C carrier rocket at 11:41 p．m．, sources at the centre told Xinhua News Agency．The satellite separated from the rocket 26 minutes after its launch and was then successfully delivered into a geostationary transfer orbit （地球同步转移轨道）．
Developed by the China Academy of Space Technology under the China Aerospace Science and Technology Corporation, the satellite is the country's second data relay satellite．The first, Tianlian I-01, was launched on April 25．2008．
The two satellites will form a network to improve communications between China's spacecraft and bases on Earth, according to the centre．They will also be used to help the nation's first space docking, scheduled for the second half of this year．
As planned, China will launch space module Tiangong-I, which was designed as a platform that will dock with an unmanned spaceship, Shenzhou, for the county's first space-docking mission this year．
Two more Shenzhou spaceships will dock with Tiangong-I next year, and one will be manned by two or three astronauts, according to China Manned Space Engineering Office, which was the main user of the Tianlian I series data relay satellites．
“The new satellite can cover a greater area to track and command the country’s space vehicles in low-Earth orbits, such as manned spacecraft and remote sensing satellites, from a higher position in outer space．Only three satellites of this kind are needed to form a global communication network, and China has two now．” Pang Zhihao, a researcher and deputy editor-in-chief of Space International, said．
The satellite could also equip astronauts with real-time communications, which will benefit the country's future manned space flights, he said．
1.What is the main purpose to send up Tianlian I-02 ?
A．To test the function of a Long-March-SC carrier rocket．
B．To carry some astronauts into space to do some research．
C．To send more information and clearer pictures to mobile phones on the earth．
D．To promote the country's satellite communication network for space docking．
2.From the passage we know________．
A．one more such satellite is needed to form a global communication network
B．the satellite was developed by China Manned Space Engineering Office
C．it was less than three years since China launched its first date relay satellite of this kind
D．the satellite could help track and command space vehicles in orbits because it's lower in position
3.Which of the following is TRUE according to the news report?
A．Shenzhou Ⅷ is a manned spaceship．
B．Tiangong-I will dock with three Shenzhou spaceships next year．
C．the satellite is of great importance to China's space exploration．
D．china’s first space docking will be done in the second half of next year．
4.The best title of the passage could be___________．
A．China Launched a New Space Shuttle
B．China's Plan for Space Exploration
C．China’s Progress in China's Space Exploration
D．New Satellite Helps China's Space Exploration
高三英语阅读理解中等难度题查看答案及解析
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China's newest space laboratory,TiangongⅡ,will be sent up into the air from the Jiuquan Satellite Launch Center in Northwest China.It will provide more comfortable digs for astronauts living aboard.
Zhu Zongpeng,chief designer of TiangongⅡsaid designers aimed to create an astronaut-friendly environment in every regard when they refitted the space lab that was developed based on Tiangong Ⅰ.
"A number of particulars were taken into account,including the sound,lighting,inner decorations as well as support equipment.For instance,the carpet in Tiangong I was replaced with floorboards.We fixed a foldable, multifunctional table that can be used for dining and experiments.The light is softer and can be adjusted.Each astronaut has a bed lamp.We also equipped the astronauts with Bluetooth headsets and Bluetooth speakers."Zhu added.
The Tiangong Ⅱconsists of two cabins（舱）with separate functions—the experiment cabin is sealed and acts as the astronauts' living quarters,while the resource cabin contains solar panels（太阳电池板）,storage batteries,engines, etc.
The lab has about 15 square meters for astronauts to live and work,including a separate sleep section and waste storage area.The equipment in the spacecraft ensures its inner sound under 50 decibels（分贝）.The temperature within the experiment cabin is kept between 22℃ and 24℃ and the humidity（湿度）between 45 and 55 percent.
In addition,Tiangong Ⅱ has an air detector（空气探测器）,and it can be used to check and deal with more than 20 dangerous gases.Also,designers placed exercise equipment in the space lab to help astronauts keep healthy and its communication systems also allow astronauts to receive and reply to emails and make calls to family and friends.
1.What does the underlined word "digs" in Paragraph 1 probably mean?
A. Rooms. B. Temperature.
C. Headsets. D. Light.
2.Why was the space lab of Tiangong Ⅱ refitted?
A. To help astronauts keep healthy.
B. To create an astronaut-friendly environment.
C. To help astronauts to receive and reply to emails.
D. To deal with over 20 dangerous gases in the lab.
3.What's the main idea of Paragraph 3?
A. A table for dining and experiment was fixed.
B. A few aspects were considered to refit the space lab.
C. Astronauts were equipped with Bluetooth headsets.
D. Bright lamps which could be adjusted were placed.
4.What does the passage mainly talk about?
A. Astronauts can live and work in different places.
B. Exercise equipment has been placed for astronauts to keep fit.
C. Astronauts will feel more comfortable in the space lab after the improvement.
D. The sound and temperature in the spacecraft will help astronauts sleep well.
高三英语阅读理解中等难度题查看答案及解析
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Beijing—（13, July） China sent up a new data relay satellite（数据中继卫星）, Tianlian I-02, on Monday at the Xichang Satellite Launch Centre in South-western Sichuan province．The new satellite will promote the country's satellite communication network for space docking（对接）．
The satellite was launched on a Long-March-3C carrier rocket at 11:41 p．m．, sources at the centre told Xinhua News Agency．The satellite separated from the rocket 26 minutes after its launch and was then successfully delivered into a geostationary transfer orbit （地球同步转移轨道）．
Developed by the China Academy of Space Technology under the China Aerospace Science and Technology Corporation, the satellite is the country's second data relay satellite．The first, Tianlian I-01, was launched on April 25．2008．
The two satellites will form a network to improve communications between China's spacecraft and bases on Earth, according to the centre．They will also be used to help the nation's first space docking, scheduled for the second half of this year．
As planned, China will launch space module Tiangong-I, which was designed as a platform that will dock with an unmanned spaceship, Shenzhou, for the county's first space-docking mission this year．
Two more Shenzhou spaceships will dock with Tiangong-I next year, and one will be manned by two or three astronauts, according to China Manned Space Engineering Office, which was the main user of the Tianlian I series data relay satellites．
“The new satellite can cover a greater area to track and command the country’s space vehicles in low-Earth orbits, such as manned spacecraft and remote sensing satellites, from a higher position in outer space．Only three satellites of this kind are needed to form a global communication network, and China has two now．” Pang Zhihao, a researcher and deputy editor-in-chief of Space International, said．
The satellite could also equip astronauts with real-time communications, which will benefit the country's future manned space flights, he said．
1.What is the main purpose to send up Tianlian I-02 ?
A．To test the function of a Long-March-SC carrier rocket．
B．To carry some astronauts into space to do some research．
C．To send more information and clearer pictures to mobile phones on the earth．
D．To promote the country's satellite communication network for space docking．
2.From the passage we know ．
A．one more such satellite is needed to form a global communication network
B．the satellite was developed by China Manned Space Engineering Office
C．it was less than three years since China launched its first date relay satellite of this kind
D．the satellite could help track and command space vehicles in orbits because it's lower in position
3.Which of the following is TRUE according to the news report?
A．Shenzhou Ⅷ is a manned spaceship．
B．Tiangong-I will dock with three Shenzhou spaceships next year．
C．the satellite is of great importance to China's space exploration．
D．china’s first space docking will be done in the second half of next year．
4.The best title of the passage could be___________．
A．China Launched a New Space Shuttle
B．China's Plan for Space Exploration
C．China’s Progress in China's Space Exploration
D．New Satellite Helps China's Space Exploration
高三英语阅读理解中等难度题查看答案及解析