The Ministry of Industry and Information Technology has issued(颁发)commercial licenses(商用许可证) for 5G on June 6,2019, according to CCTV.

Four major telecom carriers —China telecom, China mobile, China Unicom and China Broad casting Network— received the first batch(批) of four 5G commercial licenses, said the report.

As of May, Chinese companies account for more than 30% of all essential patents(专利)related to international standards for 5G, according to a China Daily report.

The next﹣generation technology is expected to be at least 10 times faster than 4G, and its huge function to connect things will enable smart factories, self﹣driving vehicles and other uses, the report said.

China s big three telecom carriers are forecast(预计 ) to spend 900 billion to 1.5 trillion yuan(﹩134 billion to ﹩23 billion ) in total on 5G network construction from 2020 to 2025, according to a report from the China Academy of Information and Communications Technology.

China is set to become the world's largest 5G market by 2025, with 460 million 5G users according to a forecast by the Global System for Mobile Communications Associationan industry group.

1.How many 5G commercial licenses have been issued in China?

A.One. B.Three. C.Four. D.Five.

2.When did the Ministry of Industry and Information Technology issue commercial licenses for 5G?

A.On May 15, 2018. B.On June 6, 2018.

C.On May 15, 2019. D.On June 6, 2019.

3.The underlined phrase "account for" in Paragraph 3 means" ".

A.own B.explain C.buy D.require

4." The next﹣generation technology"in Paragraph 4 refers to .

A.3G B.4G C.5G D.6G

5.What's the writer's purpose of writing this passage?

A.To make people interested in 5G.

B.To explain why Chinese are so proud.

C.To offer information on 5G network construction.

D.To introduce China's new development of science and technology.

Modern inventions make our life easier and more interesting than before. Let’s take a look at some inventions.

A new kind of enzyme(酶)

Scientists in Britain and the United States have found a new kind of enzyme that eats plastics. With its help, plastics can be turned into smaller parts and go away quickly. It can stop plastics from being burned everywhere. Scientists believe that it can solve the problem of plastic pollution in the future.

Social robot

Can robots talk to us like humans? Jibo, a robot made in US, can talk with you. The robot has a big, round head and a big body with no eyes or mouth. It uses animated icons (动画图标) to show emotions(情绪). It just seems like a real human. Right now, Jibo can only do some easy things, like taking photos and reading news to you. But it may learn to do new things in the future.

Spark

Spark is a new drone(无人驾驶飞机) made by a Chinese company in Shenzhen. It can help people take photos and videos. Spark might be the smallest drone ever made. When folded, it is as small as a Coke can. The coolest part is that users can control the small drone just by using hand gestures. For example, if you wave your hand from left to right, the drone will fly in the same way. When you want it to land you just put your hand out.

The drone will come to you and land on your hand.

根据短文内容选择最佳答案,并在答题卡上将该项涂黑。

1.According to the scientists, the new kind of enzyme can__________.

A.solve the problem of air pollution

B.stop plastics from being thrown everywhere

C.help plastics to burn quickly

D.help plastics to turn into smaller parts

2.We can learn that Jibo__________according to the text.

A.is a person with a big, round head

B.has big eyes and a big mouth

C.can take photos and read news to people

D.can do many difficult things

3.According to the text, what can we know about spark?

A.Spark is bigger than any other drones ever made.

B.Spark can be controlled by hand gestures.

C.Spark can only fly towards the same direction.

D.Spark is created by scientists from a US company.

4.Which of the following is Not true according to the text?

A.The enzyme is helpful in protecting the environment.

B.The social robot can only do something easy.

C.Spark can help people take photos and videos.

D.The social robot and Spark can both take photos and read news.

5.Where is this text most probably from?

A.A science report. B.A school introduction

C.A shopping poster. D.a trip advertisement.

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