(
课件网) Unit 4 Starting out Breaking boundaries 打破边界 导读课件 To learn the meanings of the word boundary. To know more about breaking boundaries in the world. To understand all kinds of boundaries in the world. To find the boundaries which can break. Learning objectives Word and expressions boundary n. 分界线；边界 37 statistic n. （一项）统计数据 37 assist v. 协助，帮助 38 tackle v. 处理，对付（难题） 38 vital adj. 极其重要的 38 comrade n. 同志；朋友 38 tragic adj. 悲惨的，不幸的 38 Ebola n. 埃博拉病毒 38 combat v. 防止，抑制 38 relieve v. 给（某人）换班 38 specialist n. 专家 38 infectious adj. 传染性的 38 clinic n. 诊所；门诊部 38 disinfect v. 为... 消毒，给... 杀毒 38 outbreak n. 爆发，突然发生 38 devotion n. 奉献 39 vomit n. 呕吐物 39 miracle n. 意外的幸运事；奇迹 39 van adj. 小型货车 39 twin adj. 双胞胎的 39 ward n. 病例 39 compensate v. 弥补，补偿 39 collaborate v.合作，协作 39 mankind n. 人类 40 1. Do you know how many people there are in the world 2. Which continent contains the largest population 3. What percentage of world population do developing countries make up 7.8 billion now. Eurasian/ju re n/ continent（亚欧大陆）. About 80%. Look and answer the questions： Lead-in Activity 1 1 Watch the video and answer the questions. Which statistic surprises you most What message do you think the video conveys Today's World The population on Earth is currently over 7.4 billion, and it's growing fast! To learn more about this huge population, let's first imagine our world as a village. It's a small village with a population of just one hundred. Each person in the village represents 74 million people who inhabit the planet. Half are male and half are female. As you would expect! Sixty-one people in this village are from Asia, and 19 of those, are Chinese. Well, China is a big country with a lot of people! Twelve people speak Putonghua as their native language, while five speak English as their native language. Eighty-two people in the village come from developing countries. And 31 of these people have no access to drinking water and sewage systems. Outrageous! Without basic sanitation, they run the risk of becoming very sick. In the village, there are 56 people with access to the Internet and there are 77 mobile phones. But some people own two or more of those phones. Perhaps the most astonishing thing about this village is that 40% of its wealth is owned by just one individual! 视频脚本 Activity 1 今天的世界 目前地球上的人口超过74亿，而且还在快速增长！ 为了更多地了解这个庞大的人口，让我们先把我们的世界想象成一个村庄。这是一个人口只有一百人的小村庄。 村子里的每个人都代表着地球上7400万人。一半是男性，一半是女性。如你所料！ 这个村子里有61人来自亚洲，其中19人是中国人。中国是一个人口众多的大国！ 12人以普通话为母语，5人以英语为母语。 村里有82人来自发展中国家。其中31个人没有饮用水和污水处理系统。令人发指!如果没有基本的卫生设施，他们就有可能病得很严重。 在这个村子里，有56个人可以上网，有77部 ... ...
