Unit 2 Saving the earth.Topic 3 What can we do to protect the environment学案（4课时）

Topic 3 What can we do at home to protect the environment Section C 一、学习目标： 1、作为阅读文章，旨在培养学生通过阅读材料获取信息的阅读技能，同时通过上下文语境猜测词义培养学生的学习策略。 2、巩固学习并列句式。 3、重点词汇及句子：①biogas technology, renewable energy, up to, hold, in the near future, maglev train, energy-efficient, electric vehicle, heat from deep in the earth, run of. ②People produce power from coal, but it is very birty and causes acid rain. ③To solve the energy problem, people all over the world are looking for new ways to produce power. ④It’s too small to hold many people, but larger models will be developed in the near future. ⑤The train can reach a top speed of 431 km per hour. 二、自主预习： 英汉互译： produce power from coal 导致酸雨 生物技术 renewable energy be used in people’s everyday lives 主要缺点 up to 30 days electic vehicles in the 1990s 发电 在不久的将来 the best-known maglev train German-built maylev guide paths heat from deep in the earth 用完、耗尽 Be used for doing sth 三、合作探究： 1、独立选择，看1a中的图片，给每一段选择一幅正确的图片。 2、In many countries, people produce power from coal, but it is very dirty and causes acid rain. ①produce power from coal意为_____ ②此句是but连接的_____句，这样的连接词还有_____、_____、_____。 3、This renewable energy is used in people’s everyday lives. ①be used in sth译作_____ eg：这顶帽子在过去用于戏剧中。（汉译英） ②习惯于_____ 过去常常……_____ 被用于做……_____ 被用来做_____ 4、It’s too small to hold many people, but larger models will be developed in the near future. ①It’s too small to hold many people的同义句为： _____或_____ ②句中hold意为_____，此外hold还有_____、_____、_____等义。 eg：hold a baby in one’s arms, hold a meeting, hold on. 5、The train can reach a top speed of 431 km per hour. ①译：_____ ②“以每小时120千米的速度”怎么表达？ _____ 四、当堂评价： 1、Read 1a and finish the task in 1b. 2、以小组合作形式讨论：The advantages and disadvantages of biogas, electric vehicle and maglev train. 3、Read the passage in 2a and match the pictures with the sentences. Then discuss in detail the use of one energy source. 五、拓展提升： （一）根据汉语意思完成句子： 1、20世纪70年代，美国人发明了照相机和手机。 _____ _____ _____, Americans developed digital cameras and cellphones. 2、你知道过去人们怎么利用水制造动力吗？ Do you know how people _____ power _____ water in the past 3、来自太阳的能源用之不竭。 Power from the sun never _____ _____. 4、我们经常用木材来造纸。 We often _____ wood _____ _____ paper. 5、上海的磁悬浮列车最高时速可达每小时431千米。 The maglev train in Shanghai can reach _____ _____ _____ _____ 431 km per hour. 六、课后检测： 完成《名师课堂》的同步练习。Topic 3 What can we do at home to protect the environment Section A 一、学习目标： 1、复习与环保有关的词汇与表达自我观点的句型。 2、掌握句型：and, or, but, while连接的并列句。 二、自主预习： Task 1：写出下列各词 a. 保护 v._____ n.___ _____ b. 环境 n. _____ adj._____ c. 组织 v._____ n.___ ... ...