Unit 9 Lesson 2 High-Flying Helpers(课件)-2023-2024学年剑桥少儿英语三级下册

High-Flying Helpers Reading Explorer 3-9B @PDD 小牛教辅 Before You Read Difficult-to-reach places: oceans, mountain tops (drones could be used to look for people in danger; they could survey damage done by wildfires or hurricanes). Items to deliver: medicine, clothing Before You Read Drones- originally created as tools of war are now performing important humanitarian and conservation tasks around the world. drones 无人机 High-Flying Helpers High-Flying Helpers Saving Lives Delivering medical supplies to hard-to-reach places has been an issue for years. Worldwide, more than two bilion people lack access to essential life-saving supplies, such as blood and vaccines. In the African nation of Rwanda, for example, several remote health clinics do not have sufflcient quantities of blood and other healthcare products. As a result, many people die of treatable ilnesses. medical adj.医学的 vaccine n.疫苗 A vaccine is a medicine that prevents a dangerous disease. sufflcient 顽固不化的 High-Flying Helpers A company called Zipline is trying to address this problem. It uses drones to transport medical supplies around Rwanda. In the past, it took hours for packages of medicines to reach some health clinics. However, a drone can now deliver medicine in 30 minutes. Thanks to this rapid healthcare service, fewer women suffer during childbirth and more children receive life-saving medicine. Drones are also assisting emergency organizations after natural disasters. In 2015, for example, a powerful cyclone destroyed thousands of buildings in the Pacific island nation of Vanuatu. Around 75,000 people lost their homes, and at least 15 died. After the storm, drones photographed the damage. These surveys helped emergency workers assess the situation quickly and answer important questions: Which areas were hardest hit? Were crops damaged? What roads were affected? Emergency workers used the data to create a detailed map of the affected area. They were then able to transport aid to the people who needed it most. packages n.包装 rapid adj.迅速的 survey n.调查 assess vt.评估 aid v.援助，帮助 High-Flying Helpers Eyes in the Sky Drones are also helping to protect vulnerable wildlife populations in parts of Africa and Asia. Every year, poachers kill thousands of elephants, rhinos, and other endangered animals. To stop them, the environmental organization World Wildlife Fund (WWF) is using drones. "Drones help us see things we can't," says Colby Loucks, who works for the WWF. For example, they can show where poachers are hiding and if they are carrying weapons. Drones are particularly helpful at night, when poachers tend to be most active. Fitted with infrared video cameras, drones can easily identify people and animals in the dark. These drones are not only helpful, they are affordable. Drones with infrared cameras cost about $20,000 each - a fraction of the cost of other high-tech tools. vulnerable v.脆弱的 poachers 偷猎者 Poachers are people who catch or kill animals ilgally. High-Flying Helpers As well as finding poachers, drones can be used to track animals. Scientists at Liverpool John Moores University plan to employ drones for an ambitious conservation project: documenting the world's wildlife. The long-term project will start with scientific surveys of animal populations. As the project expands, members of the public will be able to contribute by uploading their own drone footage. Animal species can then be identifled using special software. The project leader, biologist Serge Wich, predicts that drones - cheaper, more practical, and less dangerous than planes or helicopters - will become a widely used conservation tool. "I think we will have swarms of drones flying over forests," he predicts. ambitious adj.雄心勃勃的 footage n.镜头 ; 片段 Footage of an event is the film that shows it. High-Flying Helpers Ironically, a tool originally created for military use is increasingly being used to save lives instead of taking them. Drones have the potential to provide solutions that will benefit both humans and animals, says photographer and environmentalist Kike Calvo. "There's nothing that canreplace a good scientist," he says. But with the help of drones, "researchers are empowered to carry out projects they've never imagined before." Ironically 讽刺的是 military 军队的 Post -Reading Reading Comprehension Reading Comprehension blood and vaccines Reading Comprehension uploading drone footage blood and vaccines 30 minutes weapons Reading Skill medical supplies, life-saving supplies/medicine, blood, health clinics, healthcare products/service, medicine, vaccines, treatable illnesses hard-to-reach, remote Thanks to aid Reading Skill Reading Skill Drones could be used to drop supplies to remote locations, for example they could be used to deliver vaccines and medical testing kits to remote islands. They could be used to monitor wildlife populations in remote locations. They could be used to map remote areas and help locate areas of deforestation. Vocabulary Practice Vocabulary Practice Vocabulary Practice Vocabulary Practice DRONE DELIVERY Before You Watch startup head start autonomously Over-the-counter at a premium Before You Watch lightweight, small packages like clothing While You Watch 6 2 7 3 4 5 While You Watch While You Watch If drone deliveries become common, it might cause a safety issue with other planes flying in the area and it could crash and hurt many people on the ground. Also, it will put delivery people out of business. However, it could be a quick and easy way to receive a package. null, track 1 2019 240211.55 $$