九年级英语第二十单元_1.doc

九年级英语第二十单元 科目 英语 年级 初三 文件　middle3 unit20.1.doc 标题 The World\’s Population 章节 第二十单元 关键词 内容 一、教法建议 单元双基学习目标 . 词汇学习 population , billion , India , following , grow , beginning , century . UN , at the beginning of , the more developed countries , the less developed countries , the developing countries , in the year 2000 , hour after hour , on the earth . 句型结构 What\’s the population of Germany ? By what year will the world\’s population reach 6 billion ? I didn\’t know that China\’s population would grow so fast . We never asked what would happen to the world . . 课文学习 本单元的中心话题是当代人类最为关注的人口问题，通过学习课文了解世界人口的状况 并学习过去将来时的用法。语法重点学习过去将来时。 单元重点词汇点拨 1 . population 人口；人数 — What\’s the population of that city ? 那个城市的人口有多少 ? — The city has a population of 300 , 3000 . 该市有30万人口。 The population of the city is less than / 200 , 000 . 此城的人口不到20万。 〖 点拨 〗population 作主语谓语通常用单数，但当其前面有百分数、分数修饰时，谓语用复数。have a population of 有……人口。问人口多少有 what 或者 how large 。 2 . following 接着的；以下的 He became quite well the following day . 第二天，他的身体便好了。 Please translate the following sentences into English . 3 . mouth 嘴 Open your mouth , please . The boy filled his mouth with food . His mouth is watering . 他在流口水。 〖 点拨 〗复数直接加 s 。have a dirty mouth 说脏话。from hand to mouth 勉强糊口。 4 . beginning 开始；开端 I\’ve read the book from beginning to end . 我已把这本书从头到尾读完了。 The beginning of the book is interesting . 这本书开头很有趣。 Good beginning is half done . 良好的开端是成功的一半。 He came back at the beginning of the school term . 这学期开始时他回来了。 〖 点拨 〗from beginning to end 从头到尾。 5 . century 世纪；百年 The church is some centuries old . 这座教堂已有数百年的历史了。 6 . by 到……为止 ，不迟于 I\’ll finish the work by this week . 在本周末前我将把工作完成。 He can\’t get here by 5 0\’clock . 五点钟之前他到不了这里。 This work must be finished by the end of this month .