1 . When you’re talking to friends online, you might often use an emoji(表情符号) or a meme(表情包).

Why do people like using them so much? I think there are a few reasons. With emojis and memes, we are able to show our feelings     1     having to type(打字). It makes communication easier. If I want to say “I Love you”, I can just send someone a “heart” emoji. Or I can send an “angry face” emoji     2     say “I’m very upset right now!”

Emojis and memes also help us show a thought or feelings     3     are hard to put into words but we all understand. For example, when you want to celebrate a victory, you can use     4     Success Kid meme, it’s a picture of a boy with a clenched fist(紧握的拳头) and a determined(坚定的) face.

Emojis are quick and simple, and almost every phone or messaging app has them. Memes, on the other hand, have to     5     collected from others.

2 .

When you want to go somewhere, you can easily find your way by using a map app on your smart phone. Your smart phone “knows” where you are and can tell you where to go.

This is possible with the help of satellite navigation (satnav) systems (SNS). A sutnav system uses groups of satellites to find out where people are. It sends information to a receiver, such as a smart phone. The more satellites a system has, the more accurate it will be.

On June 23, 2020, the last satellite of China’s Beidou Navigation Satellite System was sent into space. Beidou, China’s own satnav system, was finally completed. It is one of the four global navigation systems, along with US’GPS, Russia’s   GLONASS and the European Union’s Galileo.       

On July 31, Beidou started providing full-scale global services. More than 120 countries and areas are now using Beidou services.

Since 2000, China has sent up 59 Beidou satellites! Beidon can be used in areas that include farming, public services and business. It has a positioning accuracy of under 10 metres. This summer, people along the Yangtze River used Beidou-based device to monitor floodwaters in real-time with an accuracy of just a few centimeters.

Beidou also has a special messaging ability. It allows people to send text messages up to 1,200 Chinese characters in length when mobile phone services are broken.

根据材料内容选择最佳答案。
1. Which of the following may know where you are?

A．A telephone.

B．A map app.

C．A computer.

D．A TV set.

2. When did Beidou start providing services for the world?

A．On July 23.

B．On June 31.

C．On June 23.

D．On July 31.

3. What does the underlined word “monitor”in Paragraph 5 mean in Chinese?

A．检测

B．监控

C．驾驭

D．偷听

4. Which of the following can’t Beidou be used in?

A．Weather.

B．Public services.

C．Positioning.

D．Sending messages.

5. Which of the following shows the structure of the text? (P1=Paragraph l …)

A．

B．

C．

D．