China’s Beidou global satellite navigation sy...

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

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

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

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

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

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

Global Positioning Systems are now a part of everyday driving in many countries.These satellite-based systems provide turn-by-turn directions to help people get to where they want to go.But,they can also cause a lot of problems, send you to the wrong place or leave you completely lost.Many times,the driver is to blame.Sometimes a GPS error is responsible.Most often,says Barry Brown,an expert in human-computer interaction,it is a combination of the two.

We spoke to Mr Brown by Skype (网络电话软件).He told us about an incident involving a friend who had flown to an airport in the eastern United States.There he borrowed a GPS-equipped car to use during his stay.Barry Brown:“And they just plugged in an address and then set off to their destination.And,then it wasn't until they were driving for thirty minutes that they realized they actually put in a destination back on the West Coast where they lived.They actually put their home address ia So again,the GPS is kind of 'garbage in garbage out'”.

Mr Brown says this is a common human error.But,he says,what makes the problem worse has to do with some of the shortcomings,or failures,of GPS equipment.Barry Brown:“One problem with a lot of the GPS units is they have a very small screen and they just tell you the next turn.Because they just give you the next turn,sometimes that means that it is not really giving you the overview that you would need to know that it's going to the wrong place.”

Barry Brown once worked on a project with Eric Laurier from the University of Edinburgh.The two men studied the effects of GPS devices on driving by placing cameras in people's cars.They wrote a paper based on their research.It is called “The Normal,Natural Troubles of Driving with GPS”.It lists several areas where GPS systems can cause confusion for drivers.These include maps that are outdated,incorrect or difficult to understand.They also include timing issues related to when GPS commands are given.

Barry Brown says to make GPS systems better we need a better understanding of how drivers,passengers and GPS systems work together.

1.In Paragraph 2,Mr Brown mentioned his friend in the conversation to　　　　 .

A.build up his own reputation

B.laugh at his stupid friend

C.prove the GPS system is only garbage

D.describe an example of human error

2.Which of the following statements would Barry Brown most likely agree with?

A.GPS units are to blame for most GPS service failures.

B.We should introduce higher standards for the driving license.

C.Cameras are urgently needed to help improve GPS systems.

D.Drivers,GPS systems and passengers should unite to improve GPS systems.

3.What is Mr Brown's attitude towards GPS?

A.Unconcerned.　 B.Prejudiced.　 C.Objective.　 D.Critical.

4.What would be the best title for the text?

A.Driving with GPS can be difficult

B.Driving confusions can be caused by small screens

C.Driving without GPS should be much more convenient

D.GPS equipment in driving:to be deserted or improved?

高三英语阅读理解中等难度题查看答案及解析

Global Positioning Systems are now a part of everyday driving in many countries. These satellite-based systems provide turn-by-turn directions to help people get to where they want to go. But, they can also cause a lot of problems, send you to the wrong place or leave you completely lost. Many times, the driver is to blame. Sometimes a GPS error is responsible. Most often, says Barry Brown, it is a combination of the two.

We spoke to Mr. Brown by Skype. He told us about an incident involving a friend who had flown to an airport in the eastern United States. There he borrowed a GPS-equipped car to use during his stay. Barry Brown: “And they just plugged in an address and then set off to their destination. And, then it wasn’t until they were driving for thirty minutes that they realized they actually put in a destination back on the West Coast where they lived. They actually put their home address in. So again, the GPS is kind of 'garbage in garbage out'.”

Mister Brown says this is a common human error. But, he says, what makes the problem worse has to do with some of the shortcomings, or failures, of GPS equipment. Barry Brown: “One problem with a lot of the GPS units is they have a very small screen and they just tell you the next turn. Because they just give you the next turn, sometimes that means that it is not really giving you the overview that you would need to know that it’s going to the wrong place.”

Barry Brown formerly served as a professor with the University of California, San Diego. While there, he worked on a project with Eric Laurier from the University of Edinburgh. The two men studied the effects of GPS devices on driving by placing cameras in people’s cars. They wrote a paper based on their research. It is called “The Normal, Natural Troubles of Driving with GPS.” It lists several areas where GPS systems can cause confusion for drivers. These include maps that are outdated, incorrect or difficult to understand. They also include timing issues related to when GPS commands are given.

Barry Brown says to make GPS systems better we need a better understanding of how drivers, passengers and GPS systems work together.

1.In Paragraph 2, Mr. Brown mentioned his friend in the conversation to _____________.

A．build up his own reputation

B．laugh at his stupid friend

C．prove the GPS system is only garbage

D．describe an example of human error

2.With which of the following statement would Barry Brown most likely agree?

A．GPS units are to blame for the most GPS service failures.

B．We should introduce higher standard for the driving license.

C．Cameras are urgently needed to help improve GPS systems.

D．Drivers, GPS systems and passengers should unite to improve GPS systems.

3.What is Mr. Brown’s attitude towards GPS?

A．Unconcerned      B．Prejudiced         C．Objective         D．Critical

4.What would be the best title for the text?

A．driving with GPS can be difficult

B．driving confusions can be caused by small screen

C．driving without GPS should be much more convenient

D．GPS equipment in driving: to be deserted or improved?

高三英语阅读理解中等难度题查看答案及解析

Global Positioning Systems are now a part of everyday driving in many countries. These satellite-based systems provide turn-by-turn directions to help people get to where they want to go. But they can also cause a lot of problems, sending you to the wrong place or leave you completely lost. Many times, the driver is to blame. Sometimes a GPS error is responsible. Most often, says Barry Brown, it is a combination of the two.

Barry Brown is with the Mobile Life Centre in Stockholm, Sweden. The center studies human-computer interaction, or HCI, especially communications involving wireless devices. We spoke to Mr. Brown by Skype. He told us about an incident involving a friend who had flown to an airport in the eastern United States. There he borrowed a GPS-equipped car to use during his stay.

Barry Brown: “And they just plugged in an address and then set off to their destination. And, then it wasn’t until they were driving for thirty minutes that they realized they had put in a destination back on the West Coast where they lived. They actually put their home address in. So again, the GPS is kind of “garbage in garbage out”. Mr. Brown says this is a common human error. But, he says, what makes the problem worse has to do with some of the shortcomings, or failures, of GPS equipment.

Barry Brown: “One problem with many GPS units is they have a very small screen and they just tell you the next turn. Because they just give you the next turn, sometimes that means that it is not really giving you the overview that you would need to know that it’s going to the wrong place.”

Barry Brown formerly served as a professor with the University of California, San Diego. While there, he worked on a project with Eric Laurier from the University of Edinburgh. The two men studied the effects of GPS devices on driving by placing cameras in people’s cars. They wrote a paper based on their research. It is called “The Normal, Natural Troubles of Driving with GPS.”

Barry Brown: “One of the things that struck us, perhaps the most important thing was that you have to know what you’re doing when you use a GPS. There are these new skills that people have developed. There are these new competencies that you need to have to be able to use a GPS because they sometimes go wrong.” Barry Brown says this goes against a common belief that GPS systems are for passive drivers who lack navigational (导航) skills.

“The Normal, Natural Troubles of Driving with GPS” lists several areas where GPS systems can cause confusion for drivers. These include maps that are outdated, incorrect or difficult to understand. They also include timing issues related to when GPS commands are given.

Barry Brown says to make GPS systems better we need a better understanding of how drivers, passengers and GPS systems work together.

1.What is the best title for this passage?

A. Is GPS system reliable to use?                         B. What is the use of GPS?

C. How to make the most of GPS?                 D. Blame! GPS or Passengers?

2.What is the implication of the underlined part?

A. GPS is just a garbage device.

B. GPS will not correct human errors.

C. GPS adjusts your wrong destination.

D. GPS is just as smart as human beings.

3.Which is NOT mentioned as a GPS shortcoming in the passage?

A. Small screen.         B. Timing of commands.

C. Outdated maps.     D. Dear cameras GPS uses.

4.According to the passage, people commonly believe that ___________.

A. you have to know where to go when using GPS

B. you need to have new competencies to use GPS well

C. GPS is proper for drivers with little sense of direction

D. GPS is fit for people having good understanding of maps

高三英语阅读理解中等难度题查看答案及解析

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