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25. According to the passage, the IoT is ________.
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24. The underlined word in Paragraph 4 most probably means _________.
23. The writer uses self-driving cars as an example to ________.
22.We can infer from the passage that _________.
Part II Reading Comprehension (2’x20)Directions: This part is to test your reading ability. There are 4 tasks for you to fulfill. Each task is a passage followed by five questions or unfinished statements. For each question or statement there are four choices marked A), B), C) and D). You should decide on the best choice and mark the corresponding letter on Answer Sheet with a single line through the center.Task 1If you look at the top of your phone, you’ll usually see a little symbol that says 3G or 4G. The “G’’ stands for the “generation” of your mobile network. But these symbols will become things of the past after the 5G network fully arrives.The 5G mobile network is 100 times faster and has 1,000 times more capacity compared with the 4G mobile network.In recent years, China has paid great attention to the commercial(商业的) use of 5G and made great efforts to introduce the infrastructure(基础设施) for a 5G network. On March 30, Shanghai vice-mayor Wu Qing made the first 5G viedo call on a Huawei Mate X smartphone, CGTN reported. Shanghai has also become the first city in China to start testing 5G networks.5G will let people download and upload data faster than ever before. But 5G won’t just bring faster mobile Internet. People can use it for many other things as well. For example, 5G will help to make self-driving cars safer. Today’s self-driving test cars have one problems--lags. When the car “sees” an obstacle, 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 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 techonology. For example, with IoT, your refrigerator could order eggs online when it notices that there are no eggs left inside. 21. In which city was 5G tested for the first time?
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