Unit 4 Living with technology Grammar and usage 课件-2023-2024学年高中英语牛津译林版（2020）选择性必修第二册

Grammar and usage What do you know about drones? At the school science exhibition, Jessica is giving a talk to her classmates on how drones may develop in the future. Read and think Read the passage and answer the following questions (P48) 1. What fields have drones already been used? 2. List some types of drones. 1. What fields have drones already been used? 2. List some types of drones. Drones have already been used for photography, scientific research and military operation. Delivery drones, passenger drones Exploring the rules Good morning! Today I’ll be speaking to you about Unmanned Aerial Vehicles, commonly known as drones. Flying around on their own, drones have already been used for photography, scientific research and military operations. They will come into wider use in various fields in the near future. Delivery drones, as the name suggests, are used to deliver goods. At the moment, delivery drones are mainly used for military action or disaster relief, like the distribution of medicines during emergencies, especially to places that are hard to reach by other means of transport. It can be predicted that before long people will be using drones to deliver daily supplies like food and drink. Some companies are also developing passenger drones, which carry people in crowded cities. Just enter a destination, and the drones will fly the passengers where they want to go. This could not only save time, but also greatly decrease road traffic. We can assume that with improved technology in passenger drones, we will be entering the age of personal flying vehicles. There are also many other exciting new ways to use this technology. Whatever happens, we’ll all be interacting with drones on a daily basis. There can be no denying that the technology will have a huge impact on everyday life. Work out the rules Working out the rules • We use the future continuous tense to talk about a future action that will be in progress over a period of time to come or a future ac