Unit8DiscoveriesLesson21FamousDiscoveriesvLesson22是一节阅读课,涉及的话题是Famousdiscovery。第一发现是抗生素,它在现实生活中作用比较大,但要注意适当使用。第二发现是DNA,文本中介绍了它的架构,同时通过这个我们可以获知孩子从父母那遗传了哪些基因,同时也能在医学界可以帮助治疗很多疾病。第三个发现是X光射线,介绍了它的发明人及它的作用,在生活中人们把它用到了各行各业中。通过文本学习,使学生了解这些方面的知识,在生活中能够解决一些小问题。【知识目标】通过对文本的理解与参与活动1,感知条件状语从句的意义。【能力目标】通过阅读文本,表达出这些发现在现实生活中的所起的作用,了解一些简单的医学常识。【情感目标】通过本节课的学习,使学生了解到需要长久不懈的努力和坚持,才能有所发现,有所成就。、【教学重点】通过阅读文本,获取有关threediscoveries的名称、发明人及用途等基本信息。教学重难点教学重难点教学目标教学目标教材分析教材分析【教学难点】运用所学内容,就这些著名发现来谈论它们在现实生活中的所起的作用,了解一些简单的医学常识。1.课前准备:调试光盘与课件、给学生分组、为学生布置预习作业等;2.教具学具:光盘、大卡片等。Step1.Warm-up1.Letstudentstalkabouttheastronomicknowledge.2.Letstudentsmakeadiscussionontheastronomicdiscoveries.Whatarethepeopledoinginthefollowingpictures?Whatdoyouthinktheyaretryingtodiscover?3.Listentoandpracticethekeywordsrelatedtodiscovery.chemistry,doexperiments,electricity,health,lab,machine,observe,physics,research,space,technology4.Takealookatpicturesandlearnfamousdiscoverer.Step2.Reading1.Lookthephotosoffigureswhomadethethreediscoveriesandintroducetheirdiscoveries.2.ReadandfindthenameofthepictureA,BandCandmakesurewhetheryour课前准备课前准备教学过程教学过程matchisrightornot.3.Letstudentsfindoutwhenthesediscoveriestookplace.Writethecorrectyears.4.Scanandfindoutthemaincontentspresentedinthepassage.5.Finishthemontheworksheettoanswerthefollowingquestions.Step3.Languagepoints1.curevt.治愈;矫正;解决;消除Heneededsurgerytocureatroublesomebackinjury.2.blockn.块;街区;障碍物,阻碍ShewalkedfourblocksdownHighStreet.Thereisablockofice.3.passon传递;去世;前进;对…发表(意见)Hehaswrittenanoteaskingmetopassonhisthanks.4.treatv.对待;治疗;处理;款待Doctorstreatedherwithaspirin.Step4.Pairwork1.Studentspretendtobeadoctorandtreatthevariouscases.2.Askstudentstodiscusswhichdiscoveryisthemostimportantaccordingtothetext.3.Letstudentssharewiththeirideasofdiscoveries.Step5.Homework1.FinishExercisebook.2.Ifyouliveinschoolortravelaroundformorethan10days,whatwillyoutakeinyourmedicinebag(急救包)?Discusswithyourpartner,andwritedownontheworksheet.略