外研版必修4module-4-The-great-scientist

全国中小学“教学中的互联网搜索”优秀教学案例评选教案设计一、教案背景1，面向学生：√中学□小学2，学科：英语3，课时：14，学生课前准备：一、预习本课内容所涉及的目标词汇。二、根据词汇能预测本文所讲内容。三、通过百度搜索了解关于伟大科学家的知识。四、根据预习能初步形成自己对文章的理解，并总结自己不明白的地方。二、教学课题高中阶段的课文学习多侧重于对文章结构的把握，对文章内容的理解。本单元围绕greatscientists,首先让学生掌握各领域单词，如biochemistry,biology,botany,chemistry…，对领域内的科学家所做的贡献有所了解。本单元第一篇课文介绍的是杂交水稻之父”--袁隆平的生平和事迹，同时阐述了他从事这项工作的重要性及所取得的成就。通过学习科学家的生平及事迹，激发学生学习动机，树立正确的人生观、价值观，帮助他们树立远大的理想。三、教材分析本文是外研版必修4modle4greatscientists的第一篇课文thestudentswhoaskedquestions。本文一共分为6段，可划分为3个部分。分别从袁隆平的生平，所付出的努力，所取得的成就以及成就的影响来加深学生对人物的理解。一、语言目标1、词汇和短语Staple,leading,figure,educate,agriculture,breeding,species,original,breakthrough,support,production,convert,export,quality,quantity,bringup,asaresultof,cashcrop2.重点理解句：（1）Intherice-growingworld,theChinesescientist,YuanLongping,isaleadingfigure.（2）Hethoughttherewasonlyonewaytothis---bycrossingdifferentspeciesofriceplant,andthenhecouldproduceanewplantwhichcouldgiveahigheryieldthaneitheroftheoriginalplants.（3）AsaresultofYuanLongping’sdiscoveriesChinesericeproductionroseby47.5percentinthe1990’s二．能力目标1、tounderstandthetextandthestructureofthetext2.toretellthetextaccordingtosomekeywordsfromthetext.2.tounderstandthedetailsaboutthetextandtochoosethecorrectanswersaccordingtothetext.三、学能目标Afterlearningthetext,studentscanknowwhatcharacteristicsofgreatscientistare,talkaboutsomethingaboutYuanLongpingandwriteacompositionsimilartothisone.教学重点：1Tounderstandthestructureofthetext.2Discussthequestionofcomprehension:WhyisYuanLongping’sdiscoveryveryimportant?教学难点：1Understandtheimportanceofscientists’achievements.2Isthetitleofthepassagesuitable?Ifnot,writeanewoneandgivethereasons.3DiscusswhatthestudentscanlearnfromYuanLongping.备课时用百度网页搜索外研版必修四Module4greatscientists的相关教学材料，找到很多相关材料如了解袁隆平资料。通过对比与自己对教材的理解，确立了重难点及讲课思路。然后根据课堂教学需要，利用百度视频搜索，搜索与粮食危机有关的视频作为导入环节。再用百度搜索Mp3在网上搜索与粮食有关的音乐作为文章的结尾升华部分，加强学生对课文的理解。从百度图片网上搜索下载各种所需的教学图片，例如非洲人民饥饿的图片，给学生视觉上的直观感受，便于理解。在百度知道或百度贴吧上找到了关于本课内容的知识点探讨，有利于本课程教学的延展。四、教学方法整体阅读教学法讨论教学法五、教学过程TeachingProceduresStep1.leadinginAccordingtothetitle“thegreatscientists”,askstudentstwoquestions(本单元的主题是伟大的科学家，通过这个标题，询问学生心目中的伟大科学家，唤起学生的背景知识。同时概括出为什么他们是伟大的。)⑴Question①Doyouknowwhoaregreatscientistsinhistory?②Whatcontributionsdotheymake?Trytogivesomeexamples.【百度图片】导入：⑵导入LeadinginSeeavideothatisrelatedtoagriculturalcrisis,thenaskstudentsonequestionHowcanwesolvetheproblemthatmanypeopleareinhungerbecauseoflackoffood.（利用视频展示粮食危机，人们靠什么来养活整个地球，导出本文要学的科学家—袁隆平）【百度视频】导入:Lookthroughthepassageandfindoutthemainideaforeachparagraph.Paragraph1◎Asayoungteacher,hebeganexperimentsincropbreeding.Paragraph2◎Hediscoveredanewtypeofrice.Paragraph3◎YuanLongpingisaleadingfigureintherice-growingworldParagraph4◎HisdiscoverieshavebroughtingreatprofitParagraph5◎TheyieldofthenewhybridriceismuchgreaterthanthatofothertypesofricegrowninPakistan.Paragraph6◎Asaboy,hewascalled“thestudentwhoaskedquestions”.Step3.CarefulReading:ReadthepassagecarefullyandlearnmoreaboutYuanLongping.Readparagraph1-2anddecideitisTrueorFalse.Andpleasefindtheoriginalsentenceinthepassage.1.Chinaproducesmorericethananyothercountry.2.YuanLongpingaskedalotofquestionsatschool.Readparagraph3-5andfinishthefollowingform.aboutYuanLongpingnicknamefromanearlyageasateacherdoexperimentsin____________in1966In1970discoveredanaturally____________riceplantinthe1990’sChinesericeproduction____________________;hisricewas___________othercountriesStep4.Listentothepassage,andfinishthesummaryofthepassage.百度搜索音频：=7396820&iid=40560864&cid=25Chinaistheworld’slargestrice_________.Inthe_____________world,YuanLongpingisaleading______.YuanLongpingwasbornand_______________inChina.Asaschoolboy,hewasgiventhe_________,“thestudentwhoasksquestions”.Hemajoredin____________incollege.Hethoughtthatthe_______tofeedingpeoplewastohavemorericeandto__________itmorequickly.Hethoughttherewasonlyonewaytodothis—by_________differentspeciesofriceplant,Theresultsofhisexperiments______________inChinain1966.Thenhebeganhissearchforaspecialtypeofriceplant,whichmustbe_______and_________.Finally,anaturallysterilemalericeplantwasdiscovered.Thiswasthe_____________.Researcherwas_________fromalloverchinatodevelopthenewsystem.step5languagepoints1.Hethoughtthatthekeytofeedingpeoplewastohavemorericeandtoproduceitmorequickly.他认为，解决人们吃饭问题的关键在于拥有更多的大米，并且能更快的生产出来。thekeytosth./doingsth......关键.....Practice:足够的单词量是提高英语的关键。EnoughvocabularyisthekeytoimprovingyourEnglish.努力是成功的关键。Hardworkisthekeytosuccess.2.Hethoughttherewasonlyonewaytodothis--bycrossingdifferentspeciesofriceplant,andthenhecouldhecouldproduceanewplantwhichcouldgiveahigheryieldthaneitheroftheoriginalplants.他认为，唯一的办法就是使不同种类的水稻杂交，这样才能培养出比原来任何一种水稻产量都高的新品种。宾语从句：therewasonly....theoriginalplants.定语从句:whichcouldgiveahigheryieldthaneitheroftheoriginalplants.....的办法.....awaytodo.../ofdoing...step6读写结合练习扩展—李振声(李振声是我校校友，且在我校建有李振声院士馆。两位科学家有相似之处，通过比较两位科学家让学生仿照课文，写人物描写的作文。)百度搜索：李振声资料