UNIT 4 Period III Lesson 2 & Lesson 3--Comprehending（课时作业）-【状元桥·优质课堂】2022-2023学年新教材高中英语必修第二册 （北师大版2019）

课时作业（三）UNIT4 答案解析P4 Period Three Lesson2&Lesson3一Comprehending(限时：4o分钟) I.阅读 the farm's 180 cows are fitted with 5G smart 见 collars(智能项圈)in ear sensors..Project officials We have recently heard some interesting ways say the devices do not harm the cows and the that 5G technology might change our lives in the sensors help farmers immediately find any future.5G promises internet speeds between 50 to problems or health concerns. 100 times faster than 4G systems.Such improvements Duncan Forbes,the project leader,told are sure to be popular with 5G users worldwide. Reuters that so far,he thinks the project shows While it is said to start only in some few areas of the farm's 180 cow operations can be greatly improved the United States this year,much of the rest of with 5G technology. the world is not expected to receive this service Forbes added that the experiment provides until 2023 strong evidence that 5G technology can be widely One project in Britain,though,is already used in the future "not just on farms,but in rural testing the superfast technology,but not on communities right across the country". humans. 1.What do we know about 5G technology from the Instead,the experimental subjects(实验对 first two paragraphs? are unlike the group of internet users-cows. A.It has changed our lives. The system connects the animals to 5G in an effort B.It has more users than 4G. to automate(使自动化)the milking process. C.It has not been widely used. The project was developed by American D.It is used on cows in the USA. technology company Cisco Systems.Testing areas 2.What is paragraph 4 mainly about? were set up at farms in three rural areas of A.The introduction of 5G devices. England.The cows are equipped with 5G- B.The milking process with 5G technology. connected devices that link up to a robotic milking C.The purpose of system designers. system.The system uses sensors(传感器)and machine learning to fully automate the process. D.The way machines provide cows with food. System designer