内蒙古巴彦淖尔市乌中旗二中九年级英语上册《Unit 2 Saving the Earth Topic 3 What kinds of things can we do to protect the environment Section C》学案（无答案） 仁爱湘教版.doc

九年级英语上册unit 2 saving the earth topic 3 what kinds of things can we do to protect the environment section c学案（无答案）学习目标1. 继续学习连词引导的复合句。2. 了解现代科学技术在环境保护方面的重要性。课前预习1.作为环保小卫士，我们应该做什么或不应做什么来保护我们的环境呢？请用but, and, while 等连词来回答，至少两句话。 _ _2.从词典中查找下面的单词，写出其词性及汉语意思。从文中找到并画出来。3.读1a中短文，找出并翻译下列短语。1）用煤发电 _ 2) all the time _ 3) biogas technology _ 4) renewable energy _ 5) 日常生活 _ 6)电动车辆 _ 7) produce no pollution _ 8) 电的需求 _9) 最著名的 _ 10) reach a top speed of _11) 无车轮嗓音 _12) pollute the air _ 13) much more expensive_p46/2 1）power station _ 2) produce electricity _教师备课栏及学生笔记栏教师备课栏 及学生笔记栏3) 水的流动 _ 4) use sth. to do sth._ 5) be used for doing sth._语言点导学：2. they are very efficient and cost very little to run.译：_run v. 使运转，使运行，操作eg:我们的公司运转得很好。our company _ very well.3. although electric vehicles produce no pollution, there will be an increase in electricity needs if they are widely used. 尽管电动车辆不会产生污染，但若广泛使用起来，电的需求量将会增加。1）后半句是主句，且包含一个条件状语从句，前半句是让步状语从句。2）an increase in 意为“在某方面的增长”， need作“需要的事物”讲，是可数名词；3) are widely used是个被动结构. “be +过去分词”。 widely adv.意为“广泛地”.4. it takes people 30km to the airport in just 7 minutes and reaches a top speed of 431km per hour. 到机场30千米的路程公需7分钟，最高时速达每小时431千米。1）it 指代上句中的磁悬浮列车。 take 不作“花费”讲，应译为_, 相当于_.1) reach a speed of + 具体速度 表“达到某种速度”。拓展：at a speed of _ at a top speed _ at a high speed _课堂活动：1. 预习检查。2. fast reading （answer this question） how many ways to produce power are mentioned in the passage? what are they? _3. understanding reading (read and answer)4. careful reading. (finish 1b)5. finish 2.6. 你还能想出一些其它的发电技术和节约能源的新举措吗？ _课后巩固：.完成句子。1. how many ways of _(发电) do you know?2. _(电动汽车) work well, but they are slow and cant run2. he went out _(而我待在家里)。3. biogas is a sort of _(可再生能源)。4as students, they _(应该) obey the rules in school.5. you should finish your homework _(准时)。6you can see the _(electricity) bikes here and there.7. the internet can be used for _(find) jobs.some day little cars may take the place of todays cars. if everyone _1_ such a little car in the future, there will be less pollution in the air and it will be _2_ crowded. the space now for one car in the usual size can hold _3_ one such little car. the little cars will _4_ much less to own and to drive. driving will be _5_, too, because these little cars can go only 50 kilometers an hour. the cars in the future will be fine for going _6_ the city, but they will not be useful for going far away. the little car needs only two batteries(电池)- one battery for the motor, and _7_ for the lights and born(喇叭).if we still _8_ the big cars along with the small ones, we will need to _9_ two kinds of roads. some roads will be used _10_ the big and fast cars, and other roads will be needed for the smaller, slower ones.（ ）1. a. drives b. sits c. makes d. sells（ ）2. a. more b. less c. much d. fewer（ ）3. a. at most b. no more c. less than d. more than（ ）4. a. pay b. spend c. cost d. have（ ）5. a. faster b. harder c. safer d. more dangerous（ ）6. a. over b. around c. from d. pa