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1Unit2PlantaPlantLesson8WhyArePlantsImportant课题授课时间主备人授课人班级审核人阶段环节教学过程教师活动学生活动第一阶段预学案学习目标1掌握词汇：pleasant,shade,basic,soil2．了解如何介绍植树的重要性。3.了解更多有关植树的名词。教学重点1.掌握与介绍植树有关的词汇。2.运用所学知识介绍植树的重要性。教学难点1.掌握介词表示目的的用法。2.学习一些用于介绍植物重要性的句式。自主预习掌握本课单词和短语的读法，并能了解文章大意。预习自测预习Ⅰ.英汉互译。1.做……很愉快_________2.总之，一句话_________3.takeenergyfrom_________4.soil_________5.达到，执行_________6.pleasant_________7.基本的，基础的_________8.shade_________Ⅱ根据句意和所给的首字母用适当的词语填空。1.Walkingintheopena_________isakindofgoodexercise.2.Withoutplant,n_________canliveatall.3.Thesetreesaretoodry.Waterthematonce,ortheymayd_________.4.Wateristheb_________foodtoplants.5.Thewindhasc_________muchsoilaway.Ⅰ.检查单词及词组的读法并校正。Ⅱ.Readthelessonandticktheitemsmentioned.1.Peoplecaneatplantsorusethemasmedicine.()2.Plantshelpmaketheaircleanandfresh.2第二阶段教学案反馈：合作探究：交流展示：精讲点拨：()3.Manyanimalsliveintheforest.()4.Books,paper,pencilsanderasersallcomefromplants.()5.Animalseatthefruitfromthetrees.()6.Theplantscoverthesoilandcanstopthedust.()7.Whentheweatherissunnyandhot,peoplecansitintheshadeunderatree.()8.Theplantsmakeeverythinglookbeautiful.()9.Peopleusewoodfromtreestobuildhousesandfurniture.()探究一、pleasant和basic的用法。交流展示：精讲点拨：探究二、Treesandotherplantshelpcleantheair.其中help的用法。交流展示：3第三阶段检测案达标测试：巩固提升精讲点拨：探究三、Medicineandclothingarealsomadefromtreesandplants.探究bemadeof,bemadefrom的区别。交流展示：精讲点拨：Ⅰ用所给词的适当形式填空。1.Itis_________(please)totakeawalkinthepark.2.Youwillfeelcoolifyousitinthe_________(shade)underatree.3.Weuseplants_________(make)food.4.Wouldyoulike_________(go)outonSunday?5.Waterisoneofour_________(base)needs.Ⅱ完成课本上Let’sdoit的2、3题。Ⅰ按要求改写下列句子，每空一词。。1.Don’tplantsdootherthings?(作肯定回答)________，they________.2.Let’stalkabouttreestoday,________________?(改为反意疑问句)3.Mylittlecatdiedaweekago.(改为同义句)Mylittlecat______________deadforaweek.4.Whydon’tyouplantsometreesbehindthe4house?(改为同义句)Why____________sometreesbehindthehouse?5.Theyaresittingunderatreeintheshade.(对划线部分提问)____________theysitting?Ⅱ根据汉语意思完成句子。1.植物给我们提供食物。动物呢？Plants________________food.Whataboutsnimals？2.我们没有地方住了。我们该怎么办呢？Wehavenoplaces_____________________.Whatshallwedo?3.没有食物，我们能生存吗？Canwelive______________?4.在树丛中散步很有趣，是吗？Walking_____________________isveryinteresting,isn’tit?5.丹尼说他要种很多面包圈树。Dannysaidhewouldplantalotof______________.