Question

【題目】 Do you know 5G? It is the fifth generation（代）of mobile network technology. These new networks are coming.

China just issued commercial licenses（發(fā)放商用牌照）for 5G on June 6, 2019. This means that China's telecom companies will be able to offer 5G networks for mobile phone users.

Each mobile network generation is faster and more powerful than the one before it. 1G let us talk to each other. 2G let us send messages. 3G gave us data（數(shù)據(jù)）and the Internet. And 4G made all of these things faster. What's special about 5G?

5G has a very short delay between sending and receiving information. Now, 4G takes about 100 to 200 milliseconds（毫秒）to send and receive data. But 5G will get it down to 1 millisecond or less-this is almost real-time.

'This big change will not only make our mobile Internet faster，but also deeply change our lives. Read on to find out how.

5G + entertainment（娛樂(lè)）

5G networks are about 100 times faster than 4G. This means you can download a movie in seconds using 5G.

Also, virtual reality（VR）games will become more popular with 5G. The short delay of 5G will make the games feel even more real.

5G + transport

5C will also bring us safer self-driving cars. These cars can send signals（信號(hào)）to each other. They also talk to traffic lights and road sensors（傳感器）. 5G will allow cars to react（反應(yīng)）even faster than human drivers.

5G + smart homes

5G also makes the Internet of things possible. Internet of things is a large network that connects everything to the Internet. Smart homes are part of it.

For example, your toaster can automatically（自動(dòng)地）start making breakfast after your alarm rings. And if its sensor feels the air becoming dry, a smart sprinkler（灑水器）could water your plants by itself.

【1】What's the writer's purpose in writing the third paragraph?

A.To explain 5G is the best of all.

B.To share his knowledge about 5G.

C.To encourage people to use the new network technology.

D.To show the development of mobile network technology.

【2】What does the underlined word “delay” in paragraph 4 mean in Chinese?

A.卡頓B.延時(shí)C.暫停D.掉線

【3】Which of the following ways is not mentioned that 5G will change people's lives?

A.Health careB.Entertainment.C.Transport.D.Smart homes.

【4】What will people do possibly with 5G according to the passage?

A.Download a movie in minutes.

B.Put everything onto the Internet.

C.Make self-driving cars safer.

D.Make food more easily and faster.

【5】What's the main idea of the passage?

A.5G will change our lives in many ways.

B.Mobile networks are changing for better.

C.5G will make the Internet of things possible.

D.5G networks for mobile phone users are coming.

Answer 1

【答案】

【1】D

【2】B

【3】A

【4】C

【5】A

【解析】

這是一篇說(shuō)明文。文章介紹了5G網(wǎng)絡(luò)的便捷，同時(shí)指出5G網(wǎng)絡(luò)在娛樂(lè)，交通以及智能家庭方面給人們生活帶來(lái)的改變。

【1】

推理判斷題。根據(jù)“Each mobile network generation is faster and more powerful than the one before it. 1G let us talk to each other. 2G let us send messages. 3G gave us data（數(shù)據(jù)）and the Internet. And 4G made all of these things faster. What's special about 5G”可知此處1G、2G、3G、4G以及5G，顯示了手機(jī)網(wǎng)絡(luò)的發(fā)展和變化。故選D。

【2】

詞義猜測(cè)題。根據(jù)第四段“Now, 4G takes about 100 to 200 milliseconds to send and receive data. But 5G will get it down to 1 millisecond or less —this is almost real-time.”可知4G 網(wǎng)絡(luò)用100-200毫秒收發(fā)數(shù)據(jù)，但是5G網(wǎng)絡(luò)用不了一毫秒就能收發(fā)信息，真的很快了。所以5G在接收發(fā)送信息只有很短的延遲。delay表示“延遲”。故選B。

【3】

細(xì)節(jié)理解題。根據(jù)文中“This big change will not only make our mobile Internet faster, but also deeply change our lives. Read on to find out how”以及文中的介紹5G+entertainment，5G+transportation，5G+smart homes可知沒(méi)有介紹5G對(duì)健康的改變，故選A。

【4】

細(xì)節(jié)理解題。根據(jù)“5G networks are about 100 times faster than 4G. This means you can download a movie in seconds using 5G.”在幾秒鐘就可以下載電影而不是幾分鐘，可知A選項(xiàng)表述錯(cuò)誤。根據(jù)第二個(gè)黑色小標(biāo)題第二句“These cars can send signals to each other. They also talk to traffic lights and road sensors. 5G will allow cars to react even faster than human drivers”可知車(chē)輛之間可以發(fā)送信號(hào)，可以和信號(hào)燈和傳感器溝通，讓轎車(chē)反應(yīng)更快，讓駕駛變得更安全，C選項(xiàng)表述正確。根據(jù)“Internet of things is a large network that connects everything to the Internet.”把每樣事物連接到網(wǎng)絡(luò)而不是把事物放到網(wǎng)上，可知B選項(xiàng)表述錯(cuò)誤。根據(jù)“your toaster can automatically start making breakfast after your alarm rings”自動(dòng)的做飯而不是烹飪食物更容易和更快，可知D選項(xiàng)表述錯(cuò)誤。故選C。

【5】

主旨大意題。文章講解了5G網(wǎng)絡(luò)的便捷，同時(shí)指出在娛樂(lè)，交通以及智能家庭方面給人們生活帶來(lái)的改變。文章主要是介紹5G對(duì)我們生活的改變5G will change our lives in many ways。故選A。