九年级英语上册《Unit4AmazingScience》Topic3SectionC教案仁爱版Themainactivityis1a.本课重点活动是1a。Ⅰ.Teachingaimsanddemands教学目标1.Learnanewwords:storm2.Learnsomeusefulsentences:(1)Itsdiameteris53%aswideasthatoftheearth.(2)IthasbeentwodayssincewelandedonMars.(3)Itissixweekssincewehadapropershower.3.LearnsomethingmoreaboutMars.Ⅱ.Teachingaids教具火星和罗马战神的图片/录音机/幻灯片/小黑板Ⅲ.Five-fingerTeachingPlan五指教学方案Step1Review第一步复习(时间:3分钟)师生共同谈论理想，并探讨火星等太空知识，导入新课。T:Morning,boysandgirls!Ss:Goodmorning,sir/madam!T:Whatareyougoingtobewhenyougrowup,S1?S1:I’dliketobeateacher.T:Agoodjob.Whataboutyou,S2?S2:Iwanttobeanastronaut.Icantraveltospacebyspaceshipanddiscoversomethingnewaboutspace.T:Whatagreatdream!Ourcountryhaslaunchedthreemannedspaceships.In2007,wesentupourcountry’sfirstlunarprobe.Inthefuture,theastronautsfromChinawillflytoMarstoexploreit.Theywilldiscoversomethingnewaboutit.DoyouknowanythingaboutMars?Ss:No.T:OK,let’slearnitfromSectionC.Step2Presentation第二步呈现(时间:15分钟)利用图片，导入生词学习，然后设置听力问题，提高学生的听力，最后，让学生研读1a，引导学生发现文中疑难点并互相讨论解决，教师做补充讲解。1.(出示火星及罗马战神的图片，简单介绍火星，呈现部分生词。)T:(指着火星图片。)ThisisapictureofMars.Itisthefourthplanetfromthesuninthesolarsystem.ItisnamedafterMars,theRomangodofwar.Itismuchsmallerthantheearth.Itsdiameteris53%oftheearth’s.(板书并要求学生理解solar，了解Roman,diameter。)solarRomandiameterT:Duringspringandsummer,strongstormscancoverthewholesurfaceofMars.Thegravityonitssurfaceisabout40%asstrongasitisonearth.(板书并要求学生掌握storm，了解gravity。)stormgravityT:DoyouwanttoknowsomethingmoreaboutMars?Ss:Yes.T:OK,pleaselistento1atograspthemainideaofthetext.2.(设置听力任务，让学生带着问题听1a录音，提高学生的听力。)(幻灯片出示听力任务。)(1)WhatdoesMarslooklike?(2)HowfarisMarsfromthesun?(3)What’sthetemperatureonMars?(核对答案。)3.(让学生精读1a，找出文中的疑难点，提高学生的阅读能力。)T:Boysandgirls,pleaseread1acarefully.Findoutthedifficultiesandimportantexpressions.(板书学生提出的疑难点，先让学生互相讨论解决，之后教师分析并讲解。)It’sreportedthat...atadistanceofStep3Consolidation第三步巩固(时间:10分钟)通过复述及完成短文填空的方式，巩固1a。1.(让学生再读1a，完成1b。)T:Read1aagainandfinish1b。(核对答案。)2.(让学生根据关键词复述1a，加深理解，提高表达能力。)T:Pleaseretellthepassageaccordingtothekeywordsontheblackboard.Iwillsaythekeywords.Yousaysentencestogether,OK?Ss:OK.(板书关键词及短语。)Mars,fourth,named,diameter,adistanceof,tell,because,brightred,ball,storms,gravity,temperature,oxygen,eightmonths,closest,searchingforT:Marsandfourth.Ss:Marsisthefourthplanetfromthesuninoursolarsystem.T:Named.Ss:ItisnamedafterMars,theRomangodofwar.…3.(出示幻灯片，完成对火星的介绍，巩固1a内容。)Mars,theplanetofthesolarsystem,goesaroundthesunataofabout228millionkilometers.Itsis53%aswideasthatoftheearth.Itlookslikeaandball.It’sverybeautiful.Butduringand,strongcancoverthewholeofMars.Thegravityonthesurfaceofitisaboutasasitisonearth.Step4Practice第四步练习(时间:12分钟)小组活动。根据1c的问题，展开讨论，组成对话，然后导入并学习2。1.(两人一组讨论1c中的问题，并安排两或三组学生汇报。培养学生自主学习和创新能力。)T:Welearnedalotfrom1aaboutMarsjustnow.Pleasediscussthefollowingquestionswithyourpartner.Thenmakeconversationsinpairs.AfterthatI’llasktwo...
