Unit7What’sthehighestmountainintheworld第2课时SectionA3a-4c教学目标一、知识与技能1.Mastersomeimportantwordsandphrase.2.Improvethereadingability.3.熟练掌握大数字的表达和比较级、最高级的应用。二、过程与方法通过情景设计来激发学生的学习兴趣，并培养学生自主学习和与他人合作的意识。三、情感态度与价值观通多阅读文章了解珠穆朗玛峰，学习他们勇于克服困难的精神。教学重点1.Mastersomeimportantwordsandphrase.2.Improvethereadingability.3.熟练掌握大数字的表达和比较级、最高级的应用。教学难点熟练掌握大数字的表达和比较级、最高级的应用。教法导航启发式教学和讨论法。学法导航以学生为主体，调动学生的积极性去主动探求知识。教学准备查找有关世界之最的自然地理知识并复习比较级和最高级的用法。教学过程Step1GreetingsGreettheclassasusual.Step2LeadinAskthestudentstohaveafreediscussionaboutthefollowingquestions：Whatsportsdoyoulike?Whichofthefollowingsportsdoyouthinkisthemostdangerous：swimming，tennis，Taiji，mountainclimbingorbasketball?Theteachercontinueasking：Whatmightbethedangersofmountainclimbing?教师启发学生说出：freezingweathercondition;toomanypeople;havetofightwithdangerousanimals;hardtotakeinair;thickclouds;hardtofindthewayhome.（在此过程中，教师可以在讨论中为学生扫清一些语言上的障碍）Step33a-3cAskthestudentstoreadthepassagesilentlyandfinishthetasksin3a.Readthepassageagainandfindthedangers;thenfillinthechart.Readthepassageforathirdtimeandanswerthequestions.Checktheanswersandletthestudentsreadthepassagealoudagain.Step4GrammarFocusWritedownafewnumbersonthescreen，andletthestudentssaythefollowingsentences：Thebasketballplayeristwometerstall.Theriverisonlytwometersdeep/wide.Thetreeistwometerstall.Theboxisabouttwometershigh/wide/long….教师提问whoisthetallestinourclass?引出最高级的表达，并引导学生用所学不同句式表达最高级的含义。引导学生说出：Mikeisthetallestinourclass.Mikeistallerthananyotherstudentinourclass.NostudentinourclassisastallasMike.学生利用上述结构继续训练。ThenletthestudentsreadthesentencesinGrammarFocus.Step54a-4cGothroughthesentencesin4aandthenletthenfillintheblanksbythemselves(提醒学生关注形容词的比较级和最高级)学生仔细读4b题目，明确题目要求在此过程中教师可适当给予指导，如城市的面积、人口、历史等，而动物的比较，除了身高、体重以外，教师可引导学生考虑奔跑速度、外貌特征等Thenletthestudentspresenttheirresults.Encouragethestudentstowritefivesentences然后在小组内进行交流更正朗读Step6HomeworkReadthesentencesin4a-4c课堂作业根据表格完成下列空格：QomolangmaMountHuangMountTai8，8481，8641，545MountTaiishigh.MountHuangisalittle_______thanMountTai.Qomolangmais_____________ofall.MountTaiisnot___high___Qomolangma.=MountTaiisnot_______thanQomolangma.Answers：higher，thehighest，as/soas，higherSingaporeMalaysiaChina4，000，00020，000，0001300，000，0001.ThepopulationofSingaporeislarge.2.ThepopulationofMalaysiaismuch______thanthatofSingapore.3.ThepopulationofChinais_________ofall.4.ThepopulationofSingaporeisnot_____large____thatofChina.5.ThepopulationofSingaporeisnot_______thanthatofChina.Answers：larger，thelargest，as/soas，larger.教学反思本节课通过阅读材料提高了学生的阅读能力，同时又巩固了所学的语言和词汇，在课堂的其他几个过程中，学生通过反复操练，熟练掌握了比较级和最高级的应用，总之这是一节高效课。
