高中英语人教版必修5课件：Unit 3　Section Ⅰ　

高中英语人教版必修5课件：Unit 3　Section Ⅰ　

Unit 3 Life in the future 主题语境 : 人与社会 —— 科学与技术 Words : about 300 ; Time : 7 minutes 【语篇导读】 未来的城市将会是什么样子 , 我们无从知晓 , 但是我们可以大胆畅想 , 理性规划 , 用我们的智慧定义一个宜居的未来城市。 The smart city vision( 愿景 ) is well known across the globe.What will smart ① cities look like and how will they work?We all wonder! Future smart cities appear in our minds with super-high buildings,flying cars and a greener environment.While smart city visions differ,in the coming decades,cities will become a digital blanket. One of the most shared visions of what could be a smart city includes traffic control,environmental protection,management of energy,healthcare,security and connected buildings. Smart city visions also rely on new technology which can collect a lot of information in a timely manner ② . The amount of information on the Internet is expected to grow in a big way.However,because of the relationship between Internet service providers,several problems around privacy have to be considered.   The first item on our wish list for a smart city:self-driving cars!First,we have to keep in mind that they will require special roads. The cars will need to communicate not only with each other but also with the city infrastructure. Charging stations will also have to be built.Big parts of the physical infrastructure we know today will be digitalized in order to make the dream come true!   All the information collected will lead to decisions for a better use of space,energy,water,and electricity.For example,being able to forecast traffic jams and provide another way for drivers will help to save time. Another smart technology is solar products that use solar energy allowing streets to power themselves without using electricity. The switch to smart infrastructure is not simply fashionable.In many ways,it appears to be a main part of the future of smart cities.We can now outline ③ an affordable future smart city vision for the citizens who will live in it. 词海拾贝 ① smart [sm