九年级英语上册《Unit 2 Saving the earth Topic 3 What can w
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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, produce…from…, not only…but also…, too…to…
2. 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. Introduction
1.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 people’s 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.It’s 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) It’s good that people produce power from coal.
( )2) Nuclear power is dangerous. So we can’t 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, 2010, a new kind of
electric vehicle __________ “Yezi” was shown in the 2010 Shanghai World Expo. It
produces _________ from the sun, the wind and CO2. It can not only protect
the_____________but also _________ energy. It’s 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】① The price of the car is too high/low. 这辆车价格太高/低。
② 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：
①at top/full speed ；② at (a) high speed ___ _____③ 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
