M7 U3 教案

江阴市要塞中学高二英语教案第1页共22页M7U3Theworldonline板块：WelcometotheunitThoughtsonthedesign:本节课以说为主，通过“Welcometotheunit”部分所提供的四幅图片构成的海报，介绍了因特网及其用途。学生将学会谈论把世界连接起来的因特网，因特网所带来的好处和不利之处，以及因特网将来的用处。通过对该部分相关问题的讨论，帮助学生获得更多关于英特网的信息，为更深入学习本单元内容奠定基础。Teachingaims:1.Afterlearningthislesson,thestudentswillbeabletoknowmoreabouttheInternet,andtalkabouttheInternetanditsusesbymakingadebateontheeffectsoftheInternetonourlives;2.Afterlearningthislesson,thestudentswilldevelopspeakinganddiscussingskillsbytalkingaboutthefourpicturesandsharingideasinagroup;3.ThestudentswillhaveafluenttalkonthattheInternetconnectspeopleallovertheworldandthattheInternethasbothpositiveandnegativeaspects.Teachingprocedures:Step1Lead-in(PPT5-9)1.Talkaboutthecomputer.2.Learnabout“computerterms”.(1)Whichprogrammewouldyouliketowatchtonight?→Aprogramissomethingthatweusetocontroloroperateacomputer.(2)Themusicfromthekeyboardsoundslikemusicfromarealpiano.→Akeyboardisasetofkeysonacomputerthathelpyouoperatethecomputer.(3)Ihatetocleanwindows.→WindowsisakindofcomputerprogramdevelopedbyMicrosoft.(4)Memoryissomethingyoumaystarttolosewithage.→Memoryisaspaceintheharddriveofacomputertostoreinformation.(5)Juliewantstohaveapetmouse.→Mouseiswhatyoucontrolwithyourhandtomovethecursoronthecomputerscreen.[Explanation]生活、学习中我们常用电脑，学生已经掌握相当的电脑知识并了解因特网的作用，有丰富的背景知识，但用英文表达能力还欠缺。通过谈论电脑和学习电脑相关术语，能让学生更好地表达，从而顺利导入本课主题。Step2Brainstorming(PPT10-12)1.Doyouknowhowpeoplekeptintouchwitheachotherinthepast?(Peopleusedletters,postcards,telegraphs,faxesandtelephonestocommunicatebeforetheinventionoftheInternet.)2.Thenhowpeoplekeepintouchwitheachothernow?(WiththedevelopmentoftheInternet,moreandmorepeoplearenowusingcomputersandtheInternetforcommunication.)3.WhatareyourexperiencesusingtheInternet?4.WhatistheInternet?江阴市要塞中学高二英语教案第2页共22页(TheInternet,alsocalledtheNet,isacollectionofcomputersconnectedinaworldwidenetwork.)5.WhatarethefunctionsoftheInternet?(Chatting,shopping,music,etc.)Step3Sharinginformation(PPT13-20)Discussthefourpicturesoftheposter“Aworldofconnections”.EncouragestudentstoexpresstheirunderstandingaboutthedifferentusagesoftheInternetandhaveagoodimaginationofwhattheInternetbringsusinthefuture.Nowworkinpairsandhaveadiscussionabouteachofthepictures.Picture11.Whatcanpeopledoonthiswebsite?(Searchforinformationonavarietyoftopics.)2.Whatdowecallthiskindofwebsitethatprovidessearchingservices?(Wecallitsearchengine.)3.HowcanyoufindinformationontheInternetusingasearchengine?(Enterkeywords.)4.Whatsearchenginesdoyouknoworoftenuse?Whichisyourfavouritesearchengine?(Google,Baidu.)Picture21.Whatdoyouthinkwouldbetheadvantagesofshoppingonline?(Asonlineshopkeepersdonothavetopayfortherentalofarealshop,theproductssoldonlineareusuallycheaperthanthoseinrealshops.Itiseasyandconveninenttocompareaproductinseveralonlineshops.Payingforthingsissimpleasyoujustkeyinthecreditcardnumberandconfirmthepaymentonline.Thedeliveryisusuallyquickandtheonlineshopsproividedeliverytoyourhome.Aboveall,shoppingonlinesavesalotoftime.)2.Whatdoyouthinkwouldbethedisadvantagesofonlineshopping?(Becausepeoplecanonlyseepicturesoftheproductsonline,sometimesyoucouldreceivesomethingthatwasnotwhatyoureallywanted.Thesafetyofthepaymentisnot100%guraranteedassomeonemaystealtheaccountnumbersorpinnumbersofyourcreditcardsregisteredonline.Besides,somepeoplefalselyadvertiseproductsandthenstealcustomers’money.)Picture31.Haveyouevertriedtalkingwithyourparentsorfriendsonline?2.Whatdevicesdoyouneedifyouwanttotalkwithpeopleonline?(AcomputerconnectedtotheInterent,aweb-camera,aweb-microphoneandaweb-talikingsoftware…)3.Whatarethegoodpointsandbadpointsofonlinetalking?(Therearemanygoodpoints.Peoplecansavealotofmoneyinsteadofpayingforlong-distancecalls.Peoplecankeepintouchwithfamilymembersorfriendswhereveryouareintheworld.Peoplecanmakenewfriendsindifferentpartsoftheworld.Therearenegativethingstoo.Thequalityofthepicturesorvoicesdependsonthespeedofnetworktransfer.Manypeoletalkwithinlinefriendswithoutrealizingthattheirpicturescouldbeusedbyothersinillegalways.)4.Whichwayofcommunicationdoyouprefer,talkingfacetoface,talkingoverthephone,talkingonlineortalkingonlinewithaweb-camera?Why?Picture41.Haveyoutriedotheronlineservicesthatarenotmentionedhere?Whichones?2.Whatotheronlineservicesdoyouthinkwewillneedorhaveinthefuture?3.WhatroledoyouthinktheInternetwillplayinthefuture?4.Doyouthinkitisagoodideato‘live’ontheInternetcompletely?Step4Discussion(PPT21-23)1.WhatdoyouthinkthemostimportantbenefitoftheInternetis?(FastspeedandeasyaccessarethemostimportantaspectsoftheInternet.)江阴市要塞中学高二英语教案第3页共22页2.DoyouthinktheInternethasanynegativeaspectstoit?(Yes.Thereistoomuchinformationonlinethathasnotbeenproventobetrue.Therearetoomanyexcitingcomputergames,makingthosewhocan’tcontrolthemselveskilltime.)3.InwhatwayswilltheInternetimproveourlivesinthefuture?(TheInternetwillfreepeoplefromtheoffice.EverypartofahomecanbeconnectedtotheInternet,whichwillmakelifeeasierandmorecomfortable.)Step5Debate(PPT24)UsingtheInternetAdvantagesDisadvantagesStep6Homework(PPT25)1.Writeapassageaboutadvantagesanddisadvantagesofusing