Question

【题目】

If you look at the top of your phone，you'll usually see a little symbol that says 3G or4G． The"G"stands for the"generation"of your mobile network．But these symbols will become things of the past after 5G fully arrives．

On March 30th，2019，Shanghai vice﹣mayor Wu Qing made the first 5G video call on a Huawei Mate X smartphone，CGTN reported．Shanghai has also become the first city in China to start testing 5G networks．

Now，4G takes about 100 to 200 milliseconds（毫秒）to send and receive data（数据）．But 5G will get it down to 1 millisecond or less．This big change will not only make our mobile Internet faster．It can be used in many other ways as well．

For example，5G will help to make self﹣driving cars safer．Today's self﹣driving test cars have one problem﹣lag．When the car"sees"an obstacle（障碍物），it sends this information to a data center and receives instructions．However，it takes time to send and receive this information．With this kind of lag，the cars might crash（撞击）because they don't receive instructions in time．With 5G，this lag will be greatly lowered，making the cars safer，according to CNN．

5G could also be used to power the Internet of Things（IOT）．This refers to a large online network that connects all things and people．Fast Internet speeds will be the key to developing this technology．For example，with IOT under 5G，your refrigerator could automatically（自动地）place an order online for eggs when it finds that there are no eggs left inside．

All in all，5G will shape every type of technology that it touches．And you won't have to wait too long for that to happen．

【1】From Paragraph ②，we can know that　 　．

A. 5G is widely used in ShanghaiB. it took lots of efforts to test 5G

C. China is working on its 5G networksD. 5G would make it possible to take videos

【2】Compared with 4G，5G could be　 　．

A. cheaperB. fasterC. saferD. busier

【3】The underlined word"lag"probably means"　 　"in Chinese．

A. 延迟B. 迷路C. 暂停D. 耗电

【4】The refrigerator is mentioned to　 　．

A. describe the importance of IOTB. encourage people to try the new product

C. introduce how to use the Internet of ThingsD. show 5G would make IOT more powerful

【5】Which of the following would be the best title of the passage？　 　

A. Can 5G Go Far？B. How is 5G Changing Our Life？

C. 5G is on the WayD. China is Leading the World in 5G

Answer 1

【答案】

【1】C

【2】B

【3】A

【4】D

【5】C

【解析】

本篇文章难度适中，主要讲述5G时代已经到来，并且讲述5G与以前比较，它的速度更加快以及讲述5G的用途。

【1】推理判断题。根据On March 30th，2019，Shanghai vice﹣mayor Wu Qing made the first 5G video call on a Huawei Mate X smartphone，CGTN reported．Shanghai has also become the first city in China to start testing 5G networks“2019年3月30日，上海副市长吴青用MateX智能手机打了第一个5G电话，CGTN报道，上海已经成为中国开始测试5G网络的第一个城市”可知，本段主要介绍了上海已经开始测试5G网络，即中国已经开始致力于自己的5G网络．故选C。

【2】细节理解题。根据Now，4G takes about 100 to 200 milliseconds（毫秒）to send and receive data（数据）．But 5G will get it down to 1 millisecond or less“现在，4G传送和接收数据需要大约100﹣200毫秒．但是5G将降低至1毫秒甚至更短”可知，与4G相比，5G更快，故选B。

【3】词义猜测题。根据When the car"sees"an obstacle（障碍物），it sends this information to a data center and receives instructions．However，it takes time to send and receive this information．With this kind of lag，the cars might crash（撞击）because they don't receive instructions in time“当汽车遇到障碍物时，它发送这个信息到数据中心并且接收指令．然而，传送和接收信息需要时间．汽车可能会撞因为他们没有及时接收信息”可知，lag意为延迟．故选A。

【4】推理判断题，to表示目的，题目意为文中提到冰箱是为了……。根据5G could also be used to power the Internet of Things（IOT）“5G也可以被用于推动物联网”可知，为了显示5G对物联网更有影响力，故选D。

【5】主旨大意题。根据All in all，5G will shape every type of technology that it touches．And you won't have to wait too long for that to happen“总而言之，5G将会影响涉及科技的每个领域，你不会等太久的，它会发生的”可知，5G正在路上。故选C。

解答词义猜测题时，可以使用如下技巧：1、根据上下文来猜测词义；2、通过同义词或近义词来猜测词义；3、通过构词法来猜测词义；4、通过定义或释义来猜测词义；5、通过句法功能来猜测词义；6、通过转折和因果关系来猜测词义；7. 通过生活常识来猜测词义。对于这类题采取“代入法”也非常有效，即将备选答案逐一代入文中，哪一个选项能使句子的意思通顺、连贯，且与上下文的内容一致，哪一个选项就是该题的正确答案。

例如第3题。根据When the car"sees"an obstacle（障碍物），it sends this information to a data center and receives instructions．However，it takes time to send and receive this information．With this kind of lag，the cars might crash（撞击）because they don't receive instructions in time“当汽车遇到障碍物时，它发送这个信息到数据中心并且接收指令．然而，传送和接收信息需要时间．汽车可能会撞因为他们没有及时接收信息”可知，lag意为延迟．故选A。