广东省河源中国教育学会中英文实验学校2020届九年级英语上册《Unit 2 Saving the earth Topic 3 What can we do to protect the environment（第3课时）》讲学稿（无答案）（新版）仁爱版

What can we do at home to protect the environment学习目标：1. 掌握本课的重点词汇和短语，technology, renewable, disadvantage, require, German, wheel, guide, deep, run out, source, worldwide, producefrom, not onlybut also, tooto2. 了解世界各地的人们如何开发和利用环境友好型和资源节约型的新能源，同时了解这些新能源的利用方式所存在的不足之处。并继续学习并列句。3. 理解文中出现的被动语态。第一段：【短课导学】 模块一：自主学习学习内容摘 记Step1. Introduction1.Reviewing. How can we become a greener person? (PPT)2.Let Ss look at the pictures.(PPT) Let them guess what they are? Step 2. 初读感悟课文一、Read P21-1a and underline the following phrases and sentences.(在课本上划出下列内容，并归纳短语及结构)1. Some countries use nuclear energy to produce power. 一些国家使用核能生产能源。(“使用做某事”_)2. To solve the energy problem, people all over the world are looking for new ways to produce power.为了解决能源问题，世界各地的人们都在寻找生产能源的新方法。3. 中国是世界上最先使用沼气技术的国家之一。4. This renewable energy is used in peoples everyday lives. 这种可再生能源被使用于人们的日常生活中。(被使用：_；人们的日常生活中：_）5. Its key disadvantage它的最大的缺陷6. 在20世纪90年代_ 7. It produces electricity from the sun, the wind and CO2。它通过太阳、风能和二氧化碳产生电能。8.它不仅能保护环境，也能节约能源。_9.Its too small to hold many people, but larger models will be developed in the near future. 它太小，因此不能容纳很多人，但是在不久的将来会研发出更大的模型。（太而不能：_； 在不久的将来：_）10. It takes people just 7 minutes to go to the airport 30 km away. 它只需花7分钟就可以把乘客从30千米外的地方送达机场。二、Read 1a again and choose the right picture for each paragraph.三、Read 1a and match the words with the pictures on Page 48. Finish 1b. Step3 精读-理解课文。一、Read 1a again, then finish the following:Paragraph 1: Mark True (T) or False (F). ( )1) Its good that people produce power from coal. ( )2) Nuclear power is dangerous. So we cant use it. ( )3)To solve the energy problem, people all over the world are looking for new ways to produce power. Paragraph2: 英译中：Its key disadvantage is that the process requires a long time (up to 30 days )and the cost is high._Paragraph3: Electric vehicles were _ in the 1990s. On April 11, 2020, a new kind of electric vehicle _ “Yezi” was shown in the 2020 Shanghai World Expo. It produces _ from the sun, the wind and CO2. It can not only protect the_but also _ energy. Its too small to hold many people, but _ models will be developed in the near future. Paragraph4:中译英：1)去30公里以外的飞机场只需花费人们七分钟的时间。 _2)火车最高时速能够达到每小时431公里。_二、Listen to 1a and read after it. Then finish 1c. 三、语言点的梳理：3.1.Its key disadvantage is that the process requires a long time (up to 30 days )and the cost is high.它最大的缺陷是生产过程需要很长时间（长达30天）和成本高。【归纳】1）key (adj.)意为：_ 2) require (v.) 意为：_ 3) 表达“达到，至多有(数量，数值)”的结构：_ 4）表达“费用高”：_【拓展】 The price of the car is too high/low. 这辆车价格太高/低。 Living cost in the countyside is lower. 农村的生活费用较低。 Living cost in the city is higher. 城市的生活费用较高。【归纳】英语中描述价格(price) 、费用(cost)高/低常用_ / _修饰，不能用expensive/ cheap. 3.2. The train can reach a top speed of 431 km per hour. 这辆车最高时速可达每小时431千米。 He is driving to the center of the city at a speed of twenty miles per hour. 他以每小时20英里的速度慢慢地向城市中心开过去。【归纳】1）reach/achieve a speed of +具体速度，译为_;而介词短语at a speed of +具体速度，译为_2)拓展：speed 前可用high, top, low, full等形容词修饰。如： at top/full speed ； at (a) high speed _ _ 以低速 3.3. (P48-2a) They will never run out so they are called renewable sources. 它们取之不尽，用之不竭，因而被称为可再生资源。【归纳】表达“用完，耗尽”的结构：_【链接】I ran out of my money. 我的钱用光了。【归纳】表达“用完，用光”的结构：_ run out 与run out of 的用法有什么不同？_ 第二段：【长课导学】 模块二：交流研讨研讨内容摘 记内容一：小组成员核对模块一中Step3根据课文内容填空及语言点梳理，将不懂的内容提出来。内容二：小组成员讨论从文中找出含有被动语态的句子。内容三：P48-2a. Work in pairs to finish 2a. 模块三：巩固内化学习任务任务一： Finish P48-2b. Sunlight can produce a lot of energy. People began to use the energy from the sunlight in different ways many years ago. We can use it to warm the house in the winter, to heat the water for baths, and to produce electricity. Whats more, we can even use it to run vehicles directly in the near future. As is known to us, the energy from the sunlight has a lot of advantages. For example, it is clean, renewable and non-polluting. Besides, it does no harm to our nature. So wed better use it as much as possible. Unit2 Topic3 What can we do at home to protect the environment? Section C P47-48 第3课时 授课时间：第8周 姓名 模块四：当堂训练老师的话：复杂的事情简单做，简单的事情认真做，认真做的事情重复做，重复做的事情创造性做！一时专一事，做最好的自己，你一定成功！一、根据汉语提示填空。1. Be careful! There is a _(深的) hole at the front.2. We need a _(向导) to help us go through the mountain.3. Are there any _(德国人) in your language training school?4. The printing factory used the very latest _(技术).5. Everything is ready. I dont _(需要) anything else at all.二、根据汉语提示补全英语句子，每空一词。1.人们经常用这种机器帮他们干农活。People often _ this kind of machine _ _ them do farm work.2. 网络被用在人们的日常生活中。The Internet _ _ _ peoples everyday lives.3. 她不仅给我寄了一些明信片而且还寄了一些书。