Unit4AmazingScienceTopic1Spaceshipsaremainlycontrolledbycomputers.海口市琼山二中周琼丁SectionCThemainactivityis1a.本课重点活动是1a。Ⅰ.Teachingaimsanddemands教学目标1.Learnsomenewwordsandphrases:doubt,nodoubt,tiny,cancel,connect,forinstance2.Learnausefulsentence:Thereisnodoubtthatcomputersareveryusefulintechnologyandbusiness.3.Goonlearningtheobjectcomplement:(1)Tinycomputersinsidepatients’bodiescankeeptheirheartsbeatingnormally.(2)Theyarealsomakingtheworkplacesaferandbetter.(3)TheInternetismakingtheworldsmaller,likeavillage.(4)Mr.Leetoldusnottospendtoomuchtimeplayinggames.4.Improvethestudents’readingskills.5.Discusstheuseofthecomputers.Ⅱ.Teachingaids教具投影仪/图片/小黑板Ⅲ.Five-fingerTeachingPlan五指教学方案Step1Review第一步复习(时间:5分钟)利用不同的飞船图片，让学生对其进行描述，以巩固SectionA与SectionB的知识点。T:Wehavelearnedsomethingaboutspaceships.Pleasedescribethemusingyourownwordsaccordingtothepictures.(出示神五的图片。)S1:ThisisShenzhouⅤ.In2003ournationalheroYangLiweitraveledaroundtheearthinitfor21hours.Allofusareveryproud,andhopewewillsendmorespaceshipstospaceinthefuture.(继续出示神七，嫦娥一号的图片。)S2:…S3:…T:Goodjob!Weknowspacescienceisveryamazing,andspaceshipsplayanimportantroleinexploringspace,butdoyouknowwhatcontrolsthespaceships?Ss:Computers.T:Yes.Inthislesson,let’stalkabouttheusesofcomputers.(出示一张电脑的图片，导入新课。)Step2Presentation第二步呈现(时间:10分钟)教师简单介绍电脑的用途，在介绍中引出并教学生词，以设置问题的方式培养学生的阅读能力，完成1b。1.(展开师生对话，教学生词，呈现1a。)T:Thereisnodoubtthatcomputersareusefulduringthespacetrip.(板书，要求学生掌握。)doubtnodoubtT:Asweknow,computerscancontrolthespeedandthedirectionduringaspaceship’sflight.Theycanalsofixtinymistakesandcancelwrongorders.(板书，要求学生掌握。)tinycancelT:Wealsoknowthewholeworldisconnectedbycomputers.Wecanexchangeinformation,news,ideas…withotherpeopleonline.(板书，要求学生掌握connect；理解exchange。)connectexchange2.(教师呈现以下问题，先让学生根据自己的了解进行回答。)(1)Dothecomputersplayanimportantroleduringthespaceflight?(2)WhatcancomputersandtheInternetdoinourdailylife?(3)Canweworkoncomputerstoolong?Why?(学生能回答一些问题，但不一定全面，教师建议学生带着这些问题，阅读1a。提高学生的阅读能力。)