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【备注2024中职高考】中职英语 二轮复习 阅读专题训练 （四十三）5G技术（含答案+解析）
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这是一份【备注2024中职高考】中职英语 二轮复习 阅读专题训练 （四十三）5G技术（含答案+解析），共9页。试卷主要包含了阅读单选等内容，欢迎下载使用。
一、阅读单选
Whether frm news reprts r scial media articles, yu may knw that 5G is cming.
5G is the 5th generatin netwrk (网络). It is a new netwrk after 1G, 2G, 3G and 4G and it can cnnect everyne and everything tgether. 5G netwrks have cvered many cities in China. 5G means super-fast data (数据) speed. One can dwnlad a tw-hur mvie in less than 10 secnds, and it is making ur lives mre and mre cnvenient.
5G can make self-driving cars pssible. Fr safety, self-driving cars need super-fast data transmissin (传输) t cmmunicate with their nearby envirnment. 5G is just what makes self-driving cars achieve this. Even airplanes will becme “smart” in the near future. Passengers will be able t use 5G netwrks in the air t cnnect t the Internet r place rders fr fd and drinks.
5G will be a big help fr students wh take nline classes. Many peple live in pr areas in the wrld where there are n schls. But with 5G, this will change. Students all ver the wrld will be able t see places like the Great Wall withut leaving their rms.
It will be als easier fr dctrs t treat patients remtely by 5G. It means caring fr patients frm far away.
The facts listed abve are nly a part f what 5G will make pssible and ppular. Just as in the early days f the Internet in the 1990s, few culd see hw it culd change ur life and the wrld. The same will surely be true f 5G. With 5G, many things d nt seem like dreams any mre. Nw let’s get ready t say gdbye t 4G and welcme the cming f 5G.
1．Hw lng may it take t dwnlad a tw-hur mvie with 5G?
A．8 secnds.B．10 minutes.C．15 secnds.
2．The underlined wrd “remtely” means ________ in Chinese.
A．快速地B．高效地C．远程地
3．Frm the last paragraph, we can knw that ________.
A．4G is n mre used in ur daily life nw
B．the writer is wrried abut the cming f 5G
C．with the help f 5G, sme f ur dreams will cme true fr sure ne day
4．5G will make the fllwing things mre and mre ppular EXCEPT ________.
A．hspitals withut dctrsB．“smart” airplanesC．nline classes
5．Abut 5G, ________ is NOT mentined in the passage.
A．t be used freely
B．super-fast data speed
C．t cnnect everyne and everything tgether
With the rapid develpment f wireless technlgies, the Fifth Generatin (5G) mbile cmmunicatin system started t cme. Althugh the develpment f 5G netwrk technlgy in the internatinal cmmunity is still in the research stage, a number f freign cuntries and rganizatins are wrking n it. China started late in netwrk technlgies. In rder t catch with the times, China als needs t have its wn place in such a cmpetitive envirnment.
There are sme quick changes in China’s telecm space. With the 4G netwrk nw widely used, China is nw preparing t enter 5G age. China has started research and develpment n the 5G netwrk and plans t finish the netwrk testing by arund 2019.
It’s expected that just ne standard will be used glbally (全球的) with the 5G technlgy. “Under the identical standard, different cmpanies can be cnnected, and frm a cmpetitive envirnment. Therefre, we can make sure that cmpanies can gain reasnable prfits (利润), and at the same time prvide faster, better, mre cnvenient and cheaper services t peple.” Wu Ku, Directr f Dept. f Science &Tech., MIIT said.
Wu Hequan frm Chinese Academy f Engineering said, “5G will make it pssible t cnnect ne millin devices t the s-called Internet f Things within ne square meter. In the future, it will als be used n high-speed trains mving as fast as 500 kilmeters per hur. In the area f the Internet f Vehicles (汽车), it can be used in unmanned vehicles, assisted driving and the management f smart cities.” Wu Hequan believes China’s future Internet will be faster, mre intelligent and safer.
Chinese gvernment pays mre attentin t the develpment f 5G and in mre pen t it. With the shared effrt f the industry, China will play an increasing imprtant rle in the glbal 5G develpment.
6．The first paragraph mainly wants t tell us ________.
A．what 5G netwrk technlgy means
B．the reasn why we need 5G netwrk technlgy
C．the fact that China started late in 5G netwrk technlgy
D．the fact that 5G netwrk technlgy is gd
7．The underlined wrld “identical” in Paragraph 3 means ________.
A．sameB．fastC．practicalD．mdern
8．In Wu Ku’s pinin, ________ shuld be used glbally with the 5G technlgy.
A．the netwrk testingB．cheaper services
C．just ne standardD．unmanned vehicles
9．Wu Hequan thinks 5G netwrk technlgy is full f ________.
A．cmpetitinsB．pssibilitiesC．prfitsD．difficulties
10．After reading the passage, we can infer that ________.
A．China will use 5G netwrk technlgy in transprt
B．China has already entered the 5G age cmpletely
C．Chinese gvernment didn’t pay attentin t the develpment f 5G befre
D．China is N.1 in 5G netwrk technlgy
D yu knw 5G? It is the fifth generatin (代) f mbile netwrk technlgy.
5G has a very shrt delay between sending and receiving infrmatin. Nw, 4G takes abut 100 t 200 millisecnds (毫秒) t send and receive data (数据). But 5G can get it dwn t 1 millisecnd r less—this is almst real-time.
This big change will nt nly make ur mbile Internet faster, but als deeply change ur lives. Read n t find ut hw.
5G+ entertainment (娱乐)
5G netwrks are abut 100 times faster than 4G. This means yu can dwnlad a mvie in secnd s using 5G.
5G+ transprt
5G will als bring us safer self-driving cars. These cars can send signals (信号) t each ther. They als talk t traffic lights and rad sensrs (传感器). 5G will allw cars t react (反应) even faster than human drivers.
5G+ smart hmes
5G als makes the Internet f things pssible. Internet f things is a large netwrk that cnnects everything t the Internet. Smart hmes are part f it.
Chse the best chice frm A, B r C accrding t what yu read.
11．What des the underlined wrd “delay” in paragraph 2 mean in Chinese?
A．卡顿B．延期C．暂停
12．Hw many millisecnds des 4G take t send and receive data?
A．Abut 1.B．Abut 110.C．Abut 220.
13．Which f the fllwing ways is nt mentined that 5G will change peple’s lives?
A．Health care.B．Entertainment.C．Transprt.
14．What will peple pssibly d with 5G accrding t the passage?
A．Dwnlad a mvie in minutes.
B．Put everything nt the Internet.
C．Make self-driving cars safer.
15．What’s the main idea f the passage?
A．5G will change ur lives in many ways.
B．Mbile netwrks are changing fr better.
C．5G will make the Internet f things pssible.
China is running ahead in 5G. In March, 2019, the Shanghai Hngqia Railway Statin became wrld's first "5G railway statin". Nw, it takes nly 20 secnds t dwnlad a lng mvie there.
We are mving clser and clser t the 5G wrld. Hwever, the new technlgy is still strange t mst f us. What is 5G, after all? At first, 5G is fast. 5G will be much faster than tday's 4G netwrks!
The first 5G mdem (猫，调制解调器) f the IT cmpany Qualcmm supprts speeds f up t 5 Gigabytes (千兆字节) per secnd. Mst f us have never experienced anything clse t that speed. And we are nly talking abut the first generatin (一代) f 5G mdems. Future mdels are likely t be even faster.
But 5G is nt all abut speed. Have yu ever been t a large event where yur data (数据) cnnectin slwed dwn? That is because 4G netwrks can nly supprt a certain number f devices (设置) per square meter. 5G netwrks will be able t d much better. They can supprt up t a millin devices per square kilmeter.
Nw, yu begin t understand why 5G is a huge change ver 4G. The technlgy is nt just fr the smart phnes. It has a strng influence(影响) n every cnnected device. With 5G, self-driving cars will be able t cmmunicate with the wrld arund them as quickly as pssible. Wearables, Pcs and smart hme devices will be able t imprve as well.
Are yu lking frward t that 5G wrld nw?
16．Each f the fllwing is mentined abut 5G EXCEPT________.
A．the first place where 5G is used in the wrld
B．the speed f using 5G t dwnlad
C．the way f 5G spreading
17．Paragraph 4 shws the advantages f 5G by________.
A．using different advice
B．cmparing 5G with 4G
C．sme data f 5G netwrks
18．Hw many fields f using 5G des the passage tell us?
A．Three.B．Fur.C．Five
19．Frm the passage, which f the fllwing is NOT TRUE?
A．5G technlgy is clser and clser t us.
B．5G self-driving cars will be cheaper than any ther cars.
C．IT cmpany Qualcmm prduced the first generatin f 5G mdems.
20．What's the best title fr the passage?
A．What's 5G?B．Hw is 5G used?C．Is 5G gd r bad?
参考答案：
1．A 2．C 3．C 4．A 5．A
【导语】本文介绍了什么是5G网络，以及5G网络在自动化驾驶汽车、智能飞机、在线学习和远程治疗等方面发挥的作用。
1．细节理解题。根据“One can dwnlad a tw-hur mvie in less than 10 secnds,”可知，人们可以在不到10秒的时间下载一部两个小时的电影，故选A。
2．词句猜测题。根据“It means caring fr patients frm far away.”可知，可以照顾远方的病人，因此表示远程治疗，故选C。
3．推理判断题。根据“With 5G, many things d nt seem like dreams any mre.”可知，有了5G，很多事情对任何人来说都不像梦想，因此在5G的帮助下，我们的一些梦想肯定有一天会实现。故选C。
4．推理判断题。根据“5G can make self-driving cars pssible.”可知，5G将使自动驾驶汽车成为可能；根据“5G will be a big help fr students wh take nline classes.”可知，5G能帮助学生上网课，因此不包括没有医生的医院，故选A。
5．推理判断题。根据“5G is the 5th generatin netwrk (网络). It is a new netwrk after 1G, 2G, 3G and 4G and it can cnnect everyne and everything tgether.”和“5G means super-fast data (数据) speed.”可知，5G可以将所有人和所有的事物连在一起，5G意味着超快的数据速度，因此没有提到可以免费使用5G。故选A。
6．B 7．A 8．C 9．B 10．A
【导语】本文主要讲述了中国开发5G网络技术的事情。
6．段落大意题。通读第一段可知，第一段主要告诉我们中国需要5G网络技术的原因。故选B。
7．词义猜测题。根据“It’s expected that just ne standard will be used glbally (全球的) with the 5G technlgy”及“Under the identical standard, different cmpanies can be cnnected, and frm a cmpetitive envirnment”可知，预计5G技术在全球范围内只会使用一种标准，在相同的标准下，不同的公司可以连接起来，形成竞争环境。所以划线单词与same同义。故选A。
8．推理判断题。根据“It’s expected that just ne standard will be used glbally…mre cnvenient and cheaper services t peple”可推知，吴库认为5G技术应该在全球使用一种标准。故选C。
9．推理判断题。根据他所说的话“5G will make it pssible t cnnect ne millin devices t the s-called…”可知，他认为5G网络充满了可能性。故选B。
10．推理判断题。根据“In the future, it will als be used n high-speed trains mving as fast as 500 kilmeters per hur. In the area f the Internet f Vehicles (汽车), it can be used in unmanned vehicles, assisted driving and the management f smart cities”可知，中国在交通领域将使用5G网络技术。故选A。
11．B 12．B 13．A 14．C 15．A
【导语】本文主要介绍了5G将在很多方面改变我们的生活。
11．词义猜测题。根据“Nw, 4G takes abut 100 t 200 millisecnds (毫秒) t send and receive data (数据).”（现在，4G发送和接收数据大约需要100到200毫秒）结合选项可知此处说的是5G在发送和接收信息之间的延迟非常短。故选B。
12．细节理解题。根据“Nw, 4G takes abut 100 t 200 millisecnds (毫秒) t send and receive data (数据).”可知4G发送和接收数据大约需要100到200毫秒，B选项符合，故选B。
13．细节理解题。根据“5G+ entertainment (娱乐)”、“5G+ transprt”和“5G+ smart hmes”可知没有提到医疗保健，故选A。
14．细节理解题。根据“5G will als bring us safer self-driving cars.”可知5G将会让自动驾驶汽车更安全。故选C。
15．主旨大意题。根据“This big change will nt nly make ur mbile Internet faster, but als deeply change ur lives. Read n t find ut hw.”和全文可知，本文主要介绍了5G将在很多方面改变我们的生活。故选A。
16．C 17．B 18．C 19．B 20．A
【分析】短文通过与4G网络作对比，介绍了5G网络的优势及5G网络的一些应用领域：智能手机、自动驾驶汽车、可穿戴设备、个人电脑和智能家庭设备等。
16．推理判断题。根据第一段“the Shanghai Hngqia Railway Statin became wrld's first "5G railway statin"介绍全球首个使用5G的地方上海虹桥火车站；“Nw, it takes nly 20 secnds t dwnlad a lng mvie there”介绍使用5G下载的速度；文中没有介绍5G传播。故选C。
17．推理判断题。根据第四段可知对比4G和5G网络每平方米支持设备的数量，说明5G的优势。故选B。
18．推理判断题。根据第五段“The technlgy is nt just fr the smart phnes. It has a strng influence n every cnnected device. With 5G, self-driving cars will be able t cmmunicate with the wrld arund them as quickly as pssible. Wearables, Pcs and smart hme devices will be able t imprve as well.”这项技术适用于智能手机、自动驾驶汽车、可穿戴设备、个人电脑和智能家庭设备等五个五方面。故选C。
19．推理判断题。第二段“We are mving clser and clser t the 5G wrld”可知， 5G世界离我们越来越近；第三段“The first 5G mdem f the IT cmpany Qualcmm supprts speeds f up t 5 Gigabytesper secnd”可知，IT公司Qualcmm生产了第一代5G调制解调器；文中没有提及选项B的信息。故选B。
20．最佳标题。短文主要通过与4G网络作对比，介绍了5G网络的优势及5G网络的一些应用领域，所以短文的最佳标题应该是“什么是5G？”。故选A。
一、阅读单选
Whether frm news reprts r scial media articles, yu may knw that 5G is cming.
5G is the 5th generatin netwrk (网络). It is a new netwrk after 1G, 2G, 3G and 4G and it can cnnect everyne and everything tgether. 5G netwrks have cvered many cities in China. 5G means super-fast data (数据) speed. One can dwnlad a tw-hur mvie in less than 10 secnds, and it is making ur lives mre and mre cnvenient.
5G can make self-driving cars pssible. Fr safety, self-driving cars need super-fast data transmissin (传输) t cmmunicate with their nearby envirnment. 5G is just what makes self-driving cars achieve this. Even airplanes will becme “smart” in the near future. Passengers will be able t use 5G netwrks in the air t cnnect t the Internet r place rders fr fd and drinks.
5G will be a big help fr students wh take nline classes. Many peple live in pr areas in the wrld where there are n schls. But with 5G, this will change. Students all ver the wrld will be able t see places like the Great Wall withut leaving their rms.
It will be als easier fr dctrs t treat patients remtely by 5G. It means caring fr patients frm far away.
The facts listed abve are nly a part f what 5G will make pssible and ppular. Just as in the early days f the Internet in the 1990s, few culd see hw it culd change ur life and the wrld. The same will surely be true f 5G. With 5G, many things d nt seem like dreams any mre. Nw let’s get ready t say gdbye t 4G and welcme the cming f 5G.
1．Hw lng may it take t dwnlad a tw-hur mvie with 5G?
A．8 secnds.B．10 minutes.C．15 secnds.
2．The underlined wrd “remtely” means ________ in Chinese.
A．快速地B．高效地C．远程地
3．Frm the last paragraph, we can knw that ________.
A．4G is n mre used in ur daily life nw
B．the writer is wrried abut the cming f 5G
C．with the help f 5G, sme f ur dreams will cme true fr sure ne day
4．5G will make the fllwing things mre and mre ppular EXCEPT ________.
A．hspitals withut dctrsB．“smart” airplanesC．nline classes
5．Abut 5G, ________ is NOT mentined in the passage.
A．t be used freely
B．super-fast data speed
C．t cnnect everyne and everything tgether
With the rapid develpment f wireless technlgies, the Fifth Generatin (5G) mbile cmmunicatin system started t cme. Althugh the develpment f 5G netwrk technlgy in the internatinal cmmunity is still in the research stage, a number f freign cuntries and rganizatins are wrking n it. China started late in netwrk technlgies. In rder t catch with the times, China als needs t have its wn place in such a cmpetitive envirnment.
There are sme quick changes in China’s telecm space. With the 4G netwrk nw widely used, China is nw preparing t enter 5G age. China has started research and develpment n the 5G netwrk and plans t finish the netwrk testing by arund 2019.
It’s expected that just ne standard will be used glbally (全球的) with the 5G technlgy. “Under the identical standard, different cmpanies can be cnnected, and frm a cmpetitive envirnment. Therefre, we can make sure that cmpanies can gain reasnable prfits (利润), and at the same time prvide faster, better, mre cnvenient and cheaper services t peple.” Wu Ku, Directr f Dept. f Science &Tech., MIIT said.
Wu Hequan frm Chinese Academy f Engineering said, “5G will make it pssible t cnnect ne millin devices t the s-called Internet f Things within ne square meter. In the future, it will als be used n high-speed trains mving as fast as 500 kilmeters per hur. In the area f the Internet f Vehicles (汽车), it can be used in unmanned vehicles, assisted driving and the management f smart cities.” Wu Hequan believes China’s future Internet will be faster, mre intelligent and safer.
Chinese gvernment pays mre attentin t the develpment f 5G and in mre pen t it. With the shared effrt f the industry, China will play an increasing imprtant rle in the glbal 5G develpment.
6．The first paragraph mainly wants t tell us ________.
A．what 5G netwrk technlgy means
B．the reasn why we need 5G netwrk technlgy
C．the fact that China started late in 5G netwrk technlgy
D．the fact that 5G netwrk technlgy is gd
7．The underlined wrld “identical” in Paragraph 3 means ________.
A．sameB．fastC．practicalD．mdern
8．In Wu Ku’s pinin, ________ shuld be used glbally with the 5G technlgy.
A．the netwrk testingB．cheaper services
C．just ne standardD．unmanned vehicles
9．Wu Hequan thinks 5G netwrk technlgy is full f ________.
A．cmpetitinsB．pssibilitiesC．prfitsD．difficulties
10．After reading the passage, we can infer that ________.
A．China will use 5G netwrk technlgy in transprt
B．China has already entered the 5G age cmpletely
C．Chinese gvernment didn’t pay attentin t the develpment f 5G befre
D．China is N.1 in 5G netwrk technlgy
D yu knw 5G? It is the fifth generatin (代) f mbile netwrk technlgy.
5G has a very shrt delay between sending and receiving infrmatin. Nw, 4G takes abut 100 t 200 millisecnds (毫秒) t send and receive data (数据). But 5G can get it dwn t 1 millisecnd r less—this is almst real-time.
This big change will nt nly make ur mbile Internet faster, but als deeply change ur lives. Read n t find ut hw.
5G+ entertainment (娱乐)
5G netwrks are abut 100 times faster than 4G. This means yu can dwnlad a mvie in secnd s using 5G.
5G+ transprt
5G will als bring us safer self-driving cars. These cars can send signals (信号) t each ther. They als talk t traffic lights and rad sensrs (传感器). 5G will allw cars t react (反应) even faster than human drivers.
5G+ smart hmes
5G als makes the Internet f things pssible. Internet f things is a large netwrk that cnnects everything t the Internet. Smart hmes are part f it.
Chse the best chice frm A, B r C accrding t what yu read.
11．What des the underlined wrd “delay” in paragraph 2 mean in Chinese?
A．卡顿B．延期C．暂停
12．Hw many millisecnds des 4G take t send and receive data?
A．Abut 1.B．Abut 110.C．Abut 220.
13．Which f the fllwing ways is nt mentined that 5G will change peple’s lives?
A．Health care.B．Entertainment.C．Transprt.
14．What will peple pssibly d with 5G accrding t the passage?
A．Dwnlad a mvie in minutes.
B．Put everything nt the Internet.
C．Make self-driving cars safer.
15．What’s the main idea f the passage?
A．5G will change ur lives in many ways.
B．Mbile netwrks are changing fr better.
C．5G will make the Internet f things pssible.
China is running ahead in 5G. In March, 2019, the Shanghai Hngqia Railway Statin became wrld's first "5G railway statin". Nw, it takes nly 20 secnds t dwnlad a lng mvie there.
We are mving clser and clser t the 5G wrld. Hwever, the new technlgy is still strange t mst f us. What is 5G, after all? At first, 5G is fast. 5G will be much faster than tday's 4G netwrks!
The first 5G mdem (猫，调制解调器) f the IT cmpany Qualcmm supprts speeds f up t 5 Gigabytes (千兆字节) per secnd. Mst f us have never experienced anything clse t that speed. And we are nly talking abut the first generatin (一代) f 5G mdems. Future mdels are likely t be even faster.
But 5G is nt all abut speed. Have yu ever been t a large event where yur data (数据) cnnectin slwed dwn? That is because 4G netwrks can nly supprt a certain number f devices (设置) per square meter. 5G netwrks will be able t d much better. They can supprt up t a millin devices per square kilmeter.
Nw, yu begin t understand why 5G is a huge change ver 4G. The technlgy is nt just fr the smart phnes. It has a strng influence(影响) n every cnnected device. With 5G, self-driving cars will be able t cmmunicate with the wrld arund them as quickly as pssible. Wearables, Pcs and smart hme devices will be able t imprve as well.
Are yu lking frward t that 5G wrld nw?
16．Each f the fllwing is mentined abut 5G EXCEPT________.
A．the first place where 5G is used in the wrld
B．the speed f using 5G t dwnlad
C．the way f 5G spreading
17．Paragraph 4 shws the advantages f 5G by________.
A．using different advice
B．cmparing 5G with 4G
C．sme data f 5G netwrks
18．Hw many fields f using 5G des the passage tell us?
A．Three.B．Fur.C．Five
19．Frm the passage, which f the fllwing is NOT TRUE?
A．5G technlgy is clser and clser t us.
B．5G self-driving cars will be cheaper than any ther cars.
C．IT cmpany Qualcmm prduced the first generatin f 5G mdems.
20．What's the best title fr the passage?
A．What's 5G?B．Hw is 5G used?C．Is 5G gd r bad?
参考答案：
1．A 2．C 3．C 4．A 5．A
【导语】本文介绍了什么是5G网络，以及5G网络在自动化驾驶汽车、智能飞机、在线学习和远程治疗等方面发挥的作用。
1．细节理解题。根据“One can dwnlad a tw-hur mvie in less than 10 secnds,”可知，人们可以在不到10秒的时间下载一部两个小时的电影，故选A。
2．词句猜测题。根据“It means caring fr patients frm far away.”可知，可以照顾远方的病人，因此表示远程治疗，故选C。
3．推理判断题。根据“With 5G, many things d nt seem like dreams any mre.”可知，有了5G，很多事情对任何人来说都不像梦想，因此在5G的帮助下，我们的一些梦想肯定有一天会实现。故选C。
4．推理判断题。根据“5G can make self-driving cars pssible.”可知，5G将使自动驾驶汽车成为可能；根据“5G will be a big help fr students wh take nline classes.”可知，5G能帮助学生上网课，因此不包括没有医生的医院，故选A。
5．推理判断题。根据“5G is the 5th generatin netwrk (网络). It is a new netwrk after 1G, 2G, 3G and 4G and it can cnnect everyne and everything tgether.”和“5G means super-fast data (数据) speed.”可知，5G可以将所有人和所有的事物连在一起，5G意味着超快的数据速度，因此没有提到可以免费使用5G。故选A。
6．B 7．A 8．C 9．B 10．A
【导语】本文主要讲述了中国开发5G网络技术的事情。
6．段落大意题。通读第一段可知，第一段主要告诉我们中国需要5G网络技术的原因。故选B。
7．词义猜测题。根据“It’s expected that just ne standard will be used glbally (全球的) with the 5G technlgy”及“Under the identical standard, different cmpanies can be cnnected, and frm a cmpetitive envirnment”可知，预计5G技术在全球范围内只会使用一种标准，在相同的标准下，不同的公司可以连接起来，形成竞争环境。所以划线单词与same同义。故选A。
8．推理判断题。根据“It’s expected that just ne standard will be used glbally…mre cnvenient and cheaper services t peple”可推知，吴库认为5G技术应该在全球使用一种标准。故选C。
9．推理判断题。根据他所说的话“5G will make it pssible t cnnect ne millin devices t the s-called…”可知，他认为5G网络充满了可能性。故选B。
10．推理判断题。根据“In the future, it will als be used n high-speed trains mving as fast as 500 kilmeters per hur. In the area f the Internet f Vehicles (汽车), it can be used in unmanned vehicles, assisted driving and the management f smart cities”可知，中国在交通领域将使用5G网络技术。故选A。
11．B 12．B 13．A 14．C 15．A
【导语】本文主要介绍了5G将在很多方面改变我们的生活。
11．词义猜测题。根据“Nw, 4G takes abut 100 t 200 millisecnds (毫秒) t send and receive data (数据).”（现在，4G发送和接收数据大约需要100到200毫秒）结合选项可知此处说的是5G在发送和接收信息之间的延迟非常短。故选B。
12．细节理解题。根据“Nw, 4G takes abut 100 t 200 millisecnds (毫秒) t send and receive data (数据).”可知4G发送和接收数据大约需要100到200毫秒，B选项符合，故选B。
13．细节理解题。根据“5G+ entertainment (娱乐)”、“5G+ transprt”和“5G+ smart hmes”可知没有提到医疗保健，故选A。
14．细节理解题。根据“5G will als bring us safer self-driving cars.”可知5G将会让自动驾驶汽车更安全。故选C。
15．主旨大意题。根据“This big change will nt nly make ur mbile Internet faster, but als deeply change ur lives. Read n t find ut hw.”和全文可知，本文主要介绍了5G将在很多方面改变我们的生活。故选A。
16．C 17．B 18．C 19．B 20．A
【分析】短文通过与4G网络作对比，介绍了5G网络的优势及5G网络的一些应用领域：智能手机、自动驾驶汽车、可穿戴设备、个人电脑和智能家庭设备等。
16．推理判断题。根据第一段“the Shanghai Hngqia Railway Statin became wrld's first "5G railway statin"介绍全球首个使用5G的地方上海虹桥火车站；“Nw, it takes nly 20 secnds t dwnlad a lng mvie there”介绍使用5G下载的速度；文中没有介绍5G传播。故选C。
17．推理判断题。根据第四段可知对比4G和5G网络每平方米支持设备的数量，说明5G的优势。故选B。
18．推理判断题。根据第五段“The technlgy is nt just fr the smart phnes. It has a strng influence n every cnnected device. With 5G, self-driving cars will be able t cmmunicate with the wrld arund them as quickly as pssible. Wearables, Pcs and smart hme devices will be able t imprve as well.”这项技术适用于智能手机、自动驾驶汽车、可穿戴设备、个人电脑和智能家庭设备等五个五方面。故选C。
19．推理判断题。第二段“We are mving clser and clser t the 5G wrld”可知， 5G世界离我们越来越近；第三段“The first 5G mdem f the IT cmpany Qualcmm supprts speeds f up t 5 Gigabytesper secnd”可知，IT公司Qualcmm生产了第一代5G调制解调器；文中没有提及选项B的信息。故选B。
20．最佳标题。短文主要通过与4G网络作对比，介绍了5G网络的优势及5G网络的一些应用领域，所以短文的最佳标题应该是“什么是5G？”。故选A。
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