阅读理解：Self-driving cars may sound
进入查看：2022-2023学年英语周报九年级第41期答案及试题
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Self-driving cars may sound like something from a futuristic sci-fi novel. However, with advanced trials expected from 2021, they are a lot closer to reality than you may think. The introduction of self-driving cars could have a major impact on how older adults go about their daily lives. It is hoped these cars will help reduce the social isolation and loneliness we often experience as we get older.
Connected and automated vehicles（also known as CAVs）, are vehicles that can perform many of the functions of today's human drivers in the future. Vehicles can connect to the internet to provide drivers with information on road, traffic and weather conditions. They can also take over limited parts of the driving task, for example, using advanced emergency braking to help avoid crashes and adaptive cruise control（自适应巡航控制）to increase fuel efficiency and reduce driving tiredness.
What accounted for the uncomfortable silence between the author and the father?
The father's new business wasn't going so smoothly.
The father came home rarely or very late.
The tough primary school and little time with the dad.
The misunderstanding of the author and less communication between them.
