广东省河源市中英文实验学校九年级英语上册 Unit 2 Saving the earth.Topic 2 All these problems are very serious Section C讲学稿（无答案） 仁爱版.doc

unit 2 saving the earth.topic 2 all these problems are very serious section c讲学稿（无答案）模块一：温故知新学习内容翻译下列句子。1. 水对人类是非常重要的，但并不是每个人都知道如何保护和节约它。_2. 砍伐树木对人类、动植物都有害。_human beings,animals and plants模块二：自主学习 (独立进行）预时25分钟(self-study & self-exploration)学习内容摘 记step 1 词汇学习-请将 p37-38的新单词在抄写本上每个抄写6遍，中文一遍。step 2 短语学习-请同学们在课本上找出下列短语，英汉互译。（要求：短语在课本上划出）the ozone layer _ carbon dioxide _the word it in the passage refers to _拿走；取走 _ _ 全世界_涉及；提到；指的是_ 温室效应 海平面_ step 3 课文学习1、 理解课文p37-1a，并从短文上面的短语中为每段挑选出合适的题目，写在短文前的横线上。2、 再一次阅读短文1a，完成1b。step 4 句型及词的用法学习-知识点归纳。4.1. some things weve done are very good for the earth while some are bad. 译: 【归纳】：1) weve done为定语从句，修饰_2) be good for 译为：_ 反义词组：_3）while在句中译为：_，相当于_，表示对比。如：her sister likes reading while she likes singing. 她妹妹喜欢看书，而她喜欢唱歌。请观察下列句子中的while: while i was doing my homework, my mother was cooking. we are going away for a while. 归纳：句中的while 译为：_，作连词，常用来引导含有延续性动词的时间状语从句。句中的while译为：_, 作名词。4.2. when it rains or when the wind blows, the earth is taken away. 译: 1）take away 译为：_2) take的现在分词：_ ；过去式：_ ；过去分词：_ 3)与take 有关的短语有很多，看看你能写出多少？脱下，(飞机)起飞_；把带到去_；轮流，替换_带某人去散步_；乘公共汽车_；照看_看一看_；拍照_ ；休息一下_ 坐下_4.3. the fewer trees, the better.译: 【归纳】表示“越，就越”的比较级句型结构写出来：_4.4. as a result, many rivers and lakes are now dead. 结果，现在许多河流和湖泊已经没了生机。【归纳】be dead 意为“死的”，表示一种状态，这里指“无生气的，死气沉沉的”。【链接】死（v.）_； 死亡（n.）_； 死的(adj.) _；小组内成员互查完成情况并给予等级评定： 模块三：交流研讨 (小组交流、合作、展示)预时30分钟 (cooperation ，exploration &show)研讨内容摘 记step 5 听读（10）1. 播放p37-1a的短文，学生跟读1-2遍。step 6合作 大组长组织，组员共同探讨下面研讨内容，并形成统一的组内意见；【研讨内容】 讨论一：核对模块二step 2 归纳本课时的重点短语或句型。讨论二：核对模块二 step 3课文学习-选择合适的标题及根据1a完成1b。 小组齐读课文p37-1a 。讨论三：核对模块二 step 4句型及词的用法学习-知识点归纳。讨论四：p38-2 写作训练o3，co2 ，the greenhouse effect 分别是什么含义？_，_，_他们是怎样影响环境的。参考1a短文，请将你的答案写在课本上。step 7 展示 【大组展示方案】展示任务一：讨论二，模块二 step3课文学习-读p37-1a；建议：本组读，与其他组pk，要带动班级朗读气氛。还可以背诵pk等；展示任务二：讨论三，模块二 step 4句型及词的用法学习-知识点归纳。建议：将本组答案在白板上展示，并解释短文含义。展示任务三：讨论四：p38-2 写作训练。建议：将本组答案在白板上展示，然后读并解释出来。小组内成员互查完成情况并给予等级评定： 课堂评价要素：1、 合理评价组员，全员参与，有序展示；2、 书写规范，工整美观，双色笔运用得当；3、 发音清晰，声音洪亮；4、 面向全体，自然大方，肢体语言运用得当；展示生动活泼，独具特色。模块四：教师精讲（预时10分钟，认真听讲并记录要点）训练内容摘 记1. while 作连词及名词的用法；2. 写作。 教学反思：_模块五：当堂训练（预时20分钟）一、单项选择。( ) 1. _ down trees harms the living conditions of human beings.a. cut b. cuts c. cutting d. to cut( ) 2. a terrible earthquake happened in wenchuan caused many people _ their lives and homes.a. lose b. losing c. to lose d. lost( ) 3. _ your hand if you know the answer.a. raise b. give c. rise d. put( ) 4.there are _ students on the playground, and five _ girls are in them.a.hundred; hundreds of b.hundreds of; hundred c.hundred; hundred d. hundreds of; hundreds( ) 5. as many factories have polluted the river, you can find _ fish on the water here and there.a. die b. death c. dead d. died( ) 6.the little girl was playing with a knife, so her father _ it _ from her. a. took; off b. took; away c. turned; off d. put; away( ) 7. - _ the soldiers are very tired, they keep on working. theyre great. we must learn from them. a. because b. if c. although d. before( ) 8. he prefers playing basketball _ she prefers playing computer games.a. so b. and c. while d. though( ) 9. you look so happy today! mr. wang says i am clever. _ has ever said that to me before.a. everybody b. somebody c. anybody d. nobody( ) 10. summer is coming. the days are getting _.a. long and long b. long and longer c. more and more long d. longer and longer( ) 11. we plant _ trees in our city every year.a. the millions b. millions of c. million of d. million( ) 12. it was quite a heavy snow last night. is everyone here now? yes, and _ of us was late for school this morning.a. neither b. either c. all d. none二、根据汉语提示完成句子1、尽管他没提到任何名字，但大家都知道他指的是谁。he didnt mention any names, but everyone knew who he was _ _.2、the big desk _ _ （占去）too much room.3、由于温室效应，气候变得越来越暖了。 because of the _ _, the climate is getting _ _ _.提高题（选作）三、完形填空。 when chinese people find out that someone comes from london, they often say, “london is a foggy city, isnt ?” british people who visit china often have to say that london is not a foggy city at all. but if london is not foggy, 1 do so many people in china think it is? in fact, london used to be a foggy city, 2 it isnt any more.in london, some of the pollution came from factories, but a lot of it came from coal because people used it in their houses 3 warm during the winter. by the 1950s, londons air pollution had became so 4 that the government decided to do something to clean up the air. a new rule was made. it said that 5 was allowed to burn coal in any british city. just a few years 6 , the air became much cleaner.now many chinese cities meet the same kind of 7 as london met forty or fifty years ago. however, this problem is more difficult for chinese cities to 8 . first, more of the pollution comes from big factories than from coal people use in their houses. if these factories are suddenly closed, lots of people 9 their jobs. second, cleaner fuels(燃料) are quite expensive. however , the air in many cities is already slowly becoming cleaner, because the government and ordinary(普通的)people are trying to make pollution become 10 . i believe the air will be fresh again one day.( )1. a. what b. when c. which d. why( )2. a. and b. but c. so d. or( )3. a. to keep b. keeping c. kept d. keep( )4. a. well b. good c. badly d. had( )5. a. somebody b. anybody c