Unit 1 Topic 2 Section B课件2023-2024学年仁爱科普版九年级英语上册

Topic 2 Section B 单击此处编辑母版文本样式 1.能正确表达对人口数量的提问。 2.能区分increase by与increase to的用法。 3.能用数字中的千分位，百万分位与十亿分位来表达。 学习目标 单击此处编辑母版文本样式 教师进行课前头脑风暴提问: 1.What’s the population of China？ 2.Which country has the largest population in the world？ 3.Which country has the second largest population in the world？ 预习导学 单击此处编辑母版文本样式 ·导学建议· 教师播放几张关于城市拥挤场景的PPT，如地铁，火车站。让学生猜这是什么地方，然后询问他们观后的感觉——太拥挤了，人太多了，然后导入学习的话题——人口问题。 预习导学 单击此处编辑母版文本样式 一、生词速查 1./ˌpɒpjuˈleɪʃn/ 　population　 n.人口，人数  2./ˈrʌʃə/ 　Russia　n. 俄罗斯→　Russian　n.俄罗斯人  3./ɪnˈkriːs/ v&n.　increase　 增加，增大，增多  4./riːtʃ/ 　reach　v. 实现；达到；够得着；到达  population Russia Russian increase reach 预习导学 单击此处编辑母版文本样式 二、短语速记 1.增加了　increase by　  2.发展中国家　developing country　  3.发达国家 　developed country　  4.实施；执行　carry out　  5.采取措施　take measures　  increase by developing country developed country carry out take measures 预习导学 单击此处编辑母版文本样式 三、句子速译 1.康康正在报纸上看一篇关于人口的报道。 Kangkang is reading a report on population in the newspaper.  2.它每年正以八千万的速度增加。 It is increasing by 82 million every year.  3.哪个国家的人口最多？ Which country has the largest population？  Kangkang is reading a report on population in the newspaper.  It is increasing by 80 million every year.  Which country has the largest population？  预习导学 单击此处编辑母版文本样式 4.它表明发展中国家人口比发达国家要多，是吗？ It shows that the population in developing countries is larger than that in developed countries， doesn’t it？  5.幸运的是，中国已经实施一些政策来解决人口问题。 Luckily， China has already carried out some policies to solve the problem.  It shows that the population in developing countries is larger than that in developed countries， doesn’t it？  Luckily， China has already carried out some policies to solve the problem.  预习导学 单击此处编辑母版文本样式 人口问题知多少 对画线部分提问 1.The population in China is over 1.4 billion now.  　What　 　is　the population in China now？  2.The population in China was 1.36 billion three years ago.  　What 　　was　the population in China three years ago？  3.There are about 1.27 billion people in India now.  　How　 　many　people are there in India now？