. 仁爱英语九年级上册Unit2 Topic2 导学案Section A学习目标：1. 谈论森林和水资源的重要性，培养学生的环保意识。2. 继续学习不定代词的用法。学习重点：不定代词的用法。学习过程：一、自主学习A.听说准备1. 同学们要学会拼读和识记Section A单词。2. 听1a录音，勾画出难读的单词或句子。注意模仿语音语调B自学内容 1在文中找到并划出下面的短语1.刮大风 2.许多、大量 _3.走在街上_ 4.刚才_5.砍伐太多的树木_ 6.造成沙尘暴_7.结果_ 8.大量富饶的土地_9.变成沙漠_ 10.阻止大风刮走泥土_ _11.阻止流水冲走泥土_ 12.对人类有害_ 13.绿色长城_ 14.灭绝、消失_15.形成 _ 二、要点讲评1.As a result, a lot of rich land has changed into desert.译：_ 点拨：change into（把变成）= turn into练习：1)水变成蒸汽。Water has changed into steam. 2)Could you change this article into English. 译_2.Trees can also stop the wind from blowing the earth away. They can also prevent the water from washing the earth away. 译：_ 点拨：stop sb./sth. (from) doing sth. = prevent sb./sth. (from) doing sth. - 阻止做某事 (from可以省略)同义词组 keep sb./sth. from doing sth. - 阻止做某事（from不能省略）练习：We should stop/prevent humans from_ (destroy) the environment.3.Cutting down trees is harmful to human beings, animals and plants. 译：_ 注意：cutting down trees是动名词词短语在句子中作主语，谓语用单数。Eg.Smoking is bad for our health.5.Although we have built “The Great Green Wall”, we still need to do something to protect the environment. 译_点拨：although 是连词，有“虽然，尽管”和“不过，然而”两层意思，引导让步状语从句，可以和though互换，although 较正式，though更为口语化，使用更普遍些。注意：although 引导的从句不能与but, however同时连用，但常与yet, still 连用。练习：虽然他老了，但是他仍然继续努力工作。Although he was old, he still worked hard.常见的不定代词用法：somebody, someone, something, somewhere一般情况下用于肯定句anybody, anyone, anything, anywhere一般情况下用于否定句和疑问句none, nobody, nothing, nowhere表否定含义everybody, everyone, everything, everywhere可用于各种句式三、达标测评 （A）用someone, something, anything, somewhere, anywhere 填空。1. Lily, would you like _ to drink? 2. Cindy is very busy now. She needs _ to help her. 3. Is there _ wrong with your computer?4. Jim looked for his pencil-box _ , but he didnt find it. 5. I stayed at home last week. I didnt go _. （B）( )1.We must plant more trees after we _ every year.A. cut off them B. cut them offC. cut down them D. cut them down( )2.The cleaners must keep the street _.A. from getting dirtyB. to dirty C. to get dirty D. getting dirty( )3.The driver was badly hurt _ of the traffic accident.A. at a result B. in the result C. with the result D. as a result4.不要到处扔垃圾。Dont throw the rubbish _ and _ .5.森林有利于防止水土流失。Forests help to keep water _ _ the earth away.6.我们应该尽一切努力保护环境。We should do _ _ to protect the environment.7.大量良田变成荒漠。A lot of rich land has _ into desert.Unit 2 Topic 2 Section B学习目标：1.学习不定代词和不定副词的用法。2.进一步了解有关环境污染的一些情况，提高环保意识。学习重点：不定代词和不定副词的用法。学习过程：一. 自主学习1.在文中找到并划出下面的短语3.（作为）结果,因此_ _ 4.一些有用的措施_ 5.（我们中）没有人_ 6.到处丢垃圾_ 7.当众吐痰_ 8.踩踏草坪_9.采摘花朵_ 10.关爱野生动物_ 11.多种树_ 12.发出很大的噪音_ 13.最糟糕的是 _ 15.遵守规章制度_ 16.对来说很难_ 17.一开始 _ 18.尽他们最大努力去做某事_2. 阅读1a，完成下列练习（1）请同学们先阅读书上p121的不定代词的用法，（不定代词:凡不是用来指明代替任何特定名词的代词叫做不定代词。不定代词代替名词或形容词.在句中可用作主语,宾语，表语和定语。 不定代词包括： all , both, every, each, either, neither, more, little, few, much, many, another, other, some, any , one, no 以及some, something, anything, everything, somebody, someone, anybody, anyone, nothing , nobody, no one, none, everybody, everyone.等。二、要点讲评1 .It says that China has become the worlds largest producer and user of coal.译_ 点拨：It says that - 书上/报纸上说(后接宾语从句), that可以省略 链接：a. Its said that- 据说 b. Its reported that- 据报道c.Its (well) known that - 众所周知 d.Its believed that - 人们相信2. But the government is doing something useful to protect the environment. 译_ 点拨：something useful-一些有用的事(不定代词+形容词)练习：没什么有趣的事情 _ 一些重要的事情 没什么严重的事