题目内容

【题目】—Where is___________ schoolbag?

—It’s ______ the sofa.

A. Ann; on B. Ann’s; on

C. Arm’s; in D. Ann; in

【答案】B

【解析】句意:-Ann的书包在哪里?-它在沙发上。Ann安,是一个女孩的名字;Ann’s是名词所有格,安的;on上面;in里面。第一个空后面有名词schoolbag,因此这个空应填名词所有格形式;根据句意书包应是在沙发的上面,而不是里面,故应选B。

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【题目】

Most people have map apps on their phones that can show their locations and guide them to where they want to go. But how do these app systems know your location at any time or place? They find you by using satellite navigation system(卫星导航系统).

A navigation system uses groups of satellites to find the user’s locations. This location information is then sent to a receiver.

The first navigation system is the Global Position System(GPS)(全球定位系统), which belongs to the United States. The system is the world’s famous navigation system. But China’s satellites are important for improving the navigation system. Beidou, has overtaken(超过) GPS in size, Japan’s Nikkei Asian Review reported.

China sent Beidou’s first navigation satellite into space in 2000. China also became the third country to build a navigation system after the United States and Russia, People’s Daily reported. As of right now, over 30 countries in Africa and the Middle East are using the Beidou system.

With its world-leading technology, Beidou is leading Chinese people to a better life by playing important roles in different areas, according to Xinhua News.

For example, over 6.2 million vehicles in China are using Beidou for navigation, according to a report on the Beidou system’s construction and development.

At the newly built Beijing Daxing International Airport, Beidou has been used to keep track of(追踪) loading and unloading vehicles indoors and outdoors. When the airport opens, each baggage cart has Beidou navigation equipment to help passengers get their luggage faster.

For a navigation system, the number of satellites is important for improving the system’s positioning accuracy(定位精度). The more satellites, the more accurate the positioning is. The satellite navigation system is useful in many ways.

1What does a navigation system use to find a user’s location?

A.A smart phone.B.Several satellites.C.BeidouD.An airport.

2Which of the following statements is NOT true according to the passage?

A.GPS is the first navigation system in the world.

B.Beidou system has world leading technology.

C.GPS is much larger than Beidou System.

D.To make the positioning more accurate, we need more satellites.

3Nikkei Asia Review may be _______.

A.a newspaperB.a satelliteC.a navigation systemD.an airport

4How many countries have built navigation systems before 2000?

A.Three.B.Two.C.Over 30.D.One.

5At Daxing International Airport, Beidou helps _______.

A.to open the doorsB.to find the luggage more quickly

C.to improve the positioning accuracyD.to build the new airport

【题目】

Your Internet experience must be uncomfortable when the net speed is too slow — it takes so long to open a web page and the reality shows you’re watching stops every few minutes. That can make you angry.

But it could be a thing of the past. On June 3, the Ministry of Industry and Information Technology announced that China’s major telecom carriers (电信公司) would start to provide 5G services.

1. What is 5G?

The “G” in “5G” refers to “Generation”. 1G let us talk to each other, 2G let us send messages, 3G gave us mobile data and the Internet, and 4G made all of these things faster. The mobile network technologies are developing quickly.

Now 5G promises much faster data download and upload speeds, and more stable (稳定的) connections. This means that you will be able to download a complete HD movie in seconds and only experience a short delay (延迟) between sending and receiving data.

2.What changes will 5G bring us?

With a 5G network, the short delay in information exchange will allow driverless cars to run more safely. Meanwhile, 5G-enabled wearable devices (设备) will be in use in hospitals. Besides,VR games will become more popular with 5G. The short delay of 5G will make the games feel even more real.

3. Does 5G have any disadvantages?

According to the BBC, though 5G will make our lives more convenient, it will not be perfect. For one thing, 1 . On 4G networks, you can be 10 kilometers away from the nearest transmission base and hardly lose signal (信号). But 5G will only cover about 300 meters. And in order to use 5G, we will have to buy new products designed for 5G that are expensive at present.

1“G” in “5G” means the generation of________.

A.the mobile network experienceB.the mobile communication technology

C.the speed of data download and uploadD.the delay in data exchange

2According to the passage, the best sentence for the blank is 1 .

A.5G will not “travel” farB.5G will be used in a limited way

C.products designed for 5G is expensiveD.5G has its both advantages and disadvantages

3What is the passage mainly about?

A.Changes in the mobile technologies.B.The uses of 5G.

C.Disadvantages of 5G.D.An introduction to 5G.

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