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 B讲学稿（无答案） 仁爱版.doc

unit 2 saving the earth.topic 2 all these problems are very serious section b讲学稿（无答案）模块一：温故知新学习内容英汉互译，写出单词或短语。1. 结果_ 2. 一天天 _ 3. 粗鲁的(adj.) _4. 举止；行为(n.)_ 5.一开始，初期_/_6. 消失，灭亡_ 7. 重要性（n.）_；重要的(adj.)_8.( )could you please tell me _in todays newspaper? sorry, _. a. something special; special nothing b. special something; special nothing c. something special; nothing special d. special something ; nothing special 模块二：自主学习 (独立进行）预时20分钟(self-study & self-exploration)学习内容摘 记step 1 词汇学习-请将 p35-36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）what bad weather ! _ 砍伐；降低，减少_结果_大量肥沃的土地_变成_stop the wind from blowing the earth away_ （此句的句型：stop sb. from doing sth.）prevent the water from washing the earth away_(句型：prevent sb. from doing sth.)产生；形成_ 关掉；关上_【链接】打开_；开大_；关小_记得要做某事_ 记得做过某事_step 3 课文学习1、 理解课文p35-1a对话，并写出树的三个作用(trees functions)2、 你知道沙尘暴是怎样形成的吗？课本p36-1c，给图片标序号，完成沙尘暴的形成过程。3、 水对人类是非常重要的。请认真阅读p36-2，理解保护和节约水的方法。step 4 句型及词的用法学习-知识点归纳。4.1. people have cut down too many trees. 译： cut down 砍伐 ; 降低；减少 ；cut的现在分词:_ 过去式:_ 过去分词：_【链接】1）cut sth. in halves 把某物切成两半 2）cut sth into pieces 把某物切成碎片翻译：请把这个苹果切成两半。_4.2. as a result, a lot of rich land has changed into=turned into desert.译： (1) change into = 变成eg: water has changed into steam. 水变成了蒸汽。(2) change into = 把变成译：寒冷的天气把水变成了冰。_4.3. trees can stop/prevent the wind (from )blowing the earth away.译： 【归纳】：阻止某人/某物做某事 4.4. and a lot of water can be saved by forests. 译： 。【分析】 can be saved 为含情态动词的被动语态结构，其结构为 ，save 为“贮存；保留，保存”之意。【链接】save 作动词时，还有“挽救，节约”的意思。翻译：我们必须节约每滴水。_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、听课本p35-1a的短文，然后回答下面两个听力问题。1) what are they talking about? _2) what causes this kind of bad weather? _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-写出树的三个作用(trees functions)；沙尘暴的形成过程；各组齐读p35-1a，p36-2部分的课文材料2-3遍。讨论三：核对模块二 step 4句型及词的用法学习-知识点归纳。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p35-1a；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： 模块二 step3课文学习-读p36-2部分的课文；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；展示任务三：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。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、stop/ keep/ prevent sb. from doing sth2、中译英帮助学生背诵可课文。3、根据字母或首字母提示完成短文。（多媒体核对）trees are very useful to us. they can help us p_ the wind from blowing the earth away and stop the s_ from moving towards the rich land. trees also s_ water from running away. they can keep a great d_ of water. so we must stop people from c_ down too many trees. otherwise a lot of rich land will change into d_, l_ only sand. we must get rid of (摆脱) this kind of bad b_.教学反思：_模块五：当堂训练（预时20分钟）一、用所给词适当形式填空。1. what bad weather! the wind is blowing (strong) and the rain is raining (heavy).2.forests can stop the water from _ (wash) the earth away.3. they (cut) down too many trees since last year.4. remember _ (turn ) off lights when you leave your room.5. its very _ (importance) to protect our environment.二、单项选择。( ) 1. my hometown has changed _ a new one in the last three years.a. in b. to c. with d. into( ) 2. all the students have gone on a field trip. there is _in the classroom.a. somebody b. anybody c. everybody d. nobody( ) 3. im tired of eating western fast food. could you give me _ to eat? sure. what about jiaozi?a. nothing else new b. something else new c. everything new else d. anything else new( ) 4. her parents tried to stop her _ him, but they failed.a. see b. seeing c. to see d. to seeing( ) 5. would you please _ your radio? your father is sleeping. sorry, ill do it right now.a. turn off b. blow off c. turn on d. blow away( ) 6. remember _ off the light before you leave the room. a. turning b. turn c. to turn d. turns( ) 7. eating too much is _ to your health.a. useful b. helpful c. harmful d. wonderful( ) 8. parents should prevent the children _ taking medicine by themselves.a. about b. from c. with d. of( ) 9. _ we were quite tired, _ we still went o