1、第三课时教学内容ELets WriteFLets Have Fun教学目标1能巩固、运用已学过的有关环境保护的短语“keep the air clean，keep us cool，make the place beautiful；能运用“planting trees is good for us，we should”表达植树的愿望和好处。2.理解会说“why”,能结合D部分课文和生活实际回答“why”开头的两个问题。3能切实感受到植树给生活带来了美好环境，愿意积极主动地为保护环境做出实际事情。教学重难点能回答why引导的特殊疑问句；运用学过的与环境保护相关的短语并结合句型“trees can
2、keep/make”谈论环境话题；能谈论收集的图片并制作海报，宣传环保。教学准备单词卡片，录音带，课件，教学挂图等。教学过程一、热身/复习(Warm-up/Revision)1Greetings.2Quick response.教师用课件快闪本单元的新单词及短句“plant trees，keep the air clean，keep us cool，make the place beautiful”等，学生快速读出来，并结合“Trees can”造句。3跟读、复述D部分内容，为E部分教学作铺垫。二、新课呈现(Presentation)(一)、学习E部分Lets Write1教师用课件呈现一个图
3、片场景，显示低矮的房屋旁边是密密丛丛的美丽树林，请学生谈论此时的生活环境。T：So，the village is very beautiful at this time.Look at this picture.What can you see? 2教师用课件呈现树林被砍伐，村庄被过渡开发而建立的高楼，但是却失去昔日美丽环境的图片。S：We can see many tall buildings，but less and less trees.T：Yes，in this village，more and more trees are cut down by people.The weather
4、 is changing，its getting hotter.板书“cut down，to grow rice，getting hotter，cool and fresh”，教师用图片帮助学生理解这些词汇。3.survey.学生以组为单位调查同学或家长，填上名字后在相应的答题框中书写。nameWhy do people cut down trees？Why should we plant more trees？4.小组代表汇报调查结果。5完成E部分填空。(二)、学习F部分Lets Have Fun1学生分享上次作业收集到的图片，贴在黑板上用英语说说植树的好处。2挂图出示F部分图片，问：What can you see in the tree？学生交流。3根据图片把填空完成。4交流：看到这幅画你有什么感想？三、趣味操练(Practise)Game：唱反调教师说出“we should”的句子，学生则换成“we shouldnt”重复句子，反之亦然。四、作业布置(Homework)做一做：制作一张海报，为保护树木宣传，在标语中用上keep和make。板书设计Unit 4(E，F)Why do people cut down trees?Why should we plant more trees?What can you see in the tree？
