九年级U2T2SB.doc

凤阳县城北中学教学案年级九科目英语主备王广东参加集体备课人员吴胜芳 魏宗芳马晓静内容Unit 2 Topic2 SectionB课型新授使用时 间第 周学习目标知识与能力目标：1、学习生词和短语。2、谈论有关环境恶化和环境保护的话题。过程与方法目标：学生自主预习的基础上，开展小组合作，师生共同探究。情感态度与价值观目标：通过谈论环境恶化的话题，养成自觉爱护环境的意识。重点掌握生词和短语。难点掌握生词和短语。学习过程预习导学一、预读课后词汇将下列词汇译成英语。 1、砍倒_ 2、把变成_3、沙漠_ 4、防止，预防_ 5、人_ 6、尽管，虽然_7、法律_ 8、关掉_二、预习课文，翻译下面的句子。1、多么糟糕的天气啊！2、人们砍伐了太多的树木。3、结果，许多富饶的土地变成了沙漠。4、树木可以阻止风吹走土壤。5、水对人类非常重要，但不是每个人都知道如何保护环境。6、通过法律制止水污染。研究探索一、预习情况交流：1.同学们交流预习情况，核对预习题答案。2.你在预习中遇到难题了吗？提出来大家讨论一下。二、互动学习探索：1、谈论并完成下面的内容： 写出同义句：I couldnt see anything. I could _ _ . stopfrom doing sth.和preventfrom doing sth意为_。其中，前者的介词from可以省略。翻译下面的句子： 这场大雪使游客不得不停留在上顶上。 _ although意为_，引导让步状语从句，相当于_。翻译下面的句子： 尽管他不认识我们，但他帮助了我们。 He helped us, _ . 注意：although(though)与but不能同时使用，但although(though)后仍可以使用yet或still。 加强语气时可以用even though，但不用even although。 remember to do sth.意为_；remember doing sth.意为_。翻译句子： 我记得在那次聚会上见过你。 _ . 要记住离开房间时把灯关掉。 _ .2、听1a录音，完成1b并核对答案。3、完成1c部分，并核对答案。4、完成2部分，选几个同学汇报他们的讨论结果。 巩固扩展一、根据首字母或汉语提示填空。1. We should p_ the factory from polluting the river.2. A_ he got up early,he missed the early train.3. In Sweden it is against the l_ to hit a child.4. I saw her singing in the next room_ _（刚才）.5. We should try our best to _ desert _（把变成）forests.二、用所给词的适当形式填空。1.What bad weather!The wind is blowing_(strong) and it is raining _(heavy).2.Forests can stop the water from_(wash) the earthaway.3.They_(cut) down too many trees since last year.4.Remember_(turn) off the lights when you leave.5.Its very _(importance) to protect our environment.三、 完形填空。Hundreds of years ago, life was much harder than today.People couldnt use modern machines.Of course, there was no modern machine, _1_.Life today is better, but there are new problems.One of the biggest is pollution.Water pollution has _ 2_ our rivers and lakes dirty.It kills our fish and affects our drinking water.Noise pollution makes us _ 3_ louder and become angry more easily.Air pollution is the most serious kind of pollution.It affects _ 4_ living things in the world.Cars, planes and factories all pollute our air every day.Sometimes the pollution is so _ 5_ that it is like a quilt（被子）covers a city.This kind of quilt is called smog（雾）.Many countries are making new laws to _ 6_ pollution.Factories must now clean waste water _ 7_ it is thrown away, and they mustnt blow dirty smoke into the air.We need to do many other things.We can put waste things in the dustbin _ 8_ throwing them on the ground.We can go to work by bus _9_ go to our office with our friends in a car.If the traffic is less and _ 10_ , the pollution will be less.And the environment will be better and better.( )1.A.alsoB.tooC.eitherD.neither( )2.A.letB.changedC.takenD.made( )3.A.sayB.talkC.tellD.speak( )4.A.everyB.oneC.allD.most( )5.A.lightB.hardC.thickD.thin( )6.A.protectB.fightC.saveD.try( )7.A.sinceB