必修二Unit3Computers第一課時WarmingupandReading教學(xué)設(shè)計

必修二Unit3Computers教學(xué)設(shè)計教學(xué)設(shè)計Period1（重點教案，配課件）WarmingupandReadingI(Fastreading)Teachingaims：1)ToenablethestudentstotalkaboutcomputersandrobotsinEnglishandexpressorsupportanopinionwithsuitableexpressions2)Toenablethestudentstograsptheprogressofcomputers3)Mastertherelatedwordsandimportantsentences.Focus：Enablestudentstolearnmoreaboutcomputersandtheapplicationsofcomputersinourdailylife.Bytalkingtheycanexchangetheirexperiencewitheachother.Byreadingtheywillrealizetherolethatcomputersplaysinhumanlife.Asamatteroffact,computersalsohavedisadvantages.Soafterreadingthepassagestudentswillbeaskedtodiscusswitheachotheraboutwhetherstudentsshouldsurftheinternetandhowtheycanusethecomputerproperly.Teachingmethods:listening,reading,groupdiscussionandrecitingTeachingaids:amulti-functionalcomputerandarecorderTeachingsteps:Stepone:Warming-upPlayaguessinggame.T:Hello,boysandgirls!Todaywetalkedaboutcomputers.Andwealsoreadaboutthedevelopmentaboutcomputers.Manyofyoumustbefamiliarwithcomputers,whichhasbecomeanimportantpartofourlife.Canyouthinkofhowcomputerswereinvented?Whocantellmesomethingaboutcomputersnow?S1:WecanplaygamesandsurfingtheInternetusingcomputers.S2:Wecanalsosearchforinformationweneedeasilyonthecomputer.S3:Wecanchatwithourfriendsandexpressourselvesusingcomputers.S4:Wecanseefilmswelikeonthecomputer.…T:Thetechnologydevelopssoquicklythatmanynewthingsappearinhumanbeing’slife.Amongthemarecomputersandrobots.Let’sguesswhattheyare:(ShowthepictureonthescreenandgetSstosaytheanswers,learnthenewwordsatthesametime)ItwasborninChina60.Manypeopleusedmeforcalculating(計算)inthepast.50Iammadeofwoodorplastics.30ButnowIamabitlonelybecausetheydon’tlikemeanymore.20…(Askstudentstogivetheiropinions,remindthemofusingtheexpressionsofgivingopinions)Askstudentstodiscusswhattheitemsjustshownhaveincommon.T:Iamgladthatyouhaveworkedoutalltheguessingitems.NowIstillwonderwhatallthesethingshaveincommon.Whocantellme?S1:Theycanbeusedforcalculating.T:Welldone!That’sright.Anyoneelse?S2:Theyareusefulandhelpfulandtheyarerelatedtoeachother.T:Agoodjob.…教師活動：通過“猜謎游戲”導(dǎo)入本單元話題，引起學(xué)生計算機的發(fā)展演變過程的興趣。教師進而借助于幻燈上的一些圖片，通過語言上的引導(dǎo)使學(xué)生不由自主地在討論思索所猜測出的內(nèi)容的共同之處以及怎樣體現(xiàn)了計算機的發(fā)展史。學(xué)生活動：1、根據(jù)幻燈片上提示的內(nèi)容完成猜謎游戲。2、學(xué)生報告（students’reports）：通過課前學(xué)生預(yù)習(xí)、報刊、網(wǎng)上查閱各種資料，學(xué)生展示他們了解的計算機的相關(guān)內(nèi)容，包括上網(wǎng)沖浪，博客等設(shè)計意圖：1)猜謎活動充分調(diào)動了學(xué)生的積極性，給學(xué)生相互學(xué)習(xí)和交流的機會。讓枯燥的內(nèi)容變得富有趣味性。2)通過圖片展示和學(xué)生報告，了解學(xué)生主動學(xué)習(xí)情況，使學(xué)生在實際的學(xué)習(xí)不斷改進學(xué)習(xí)方式，并由此促進課堂學(xué)習(xí)，并由此引出本節(jié)課話題。Steptwo:Pre-reading1. QuestioningandansweringT:Iamgladthatyouhaveworkedoutalltheriddles.ButIstillwonderwhatthethingsinthepicturehaveincommon.Isthereanyonewhocantellme?S1:Yes,Ithinkwhattheyhaveincommonisthattheycanallbeusedforcalculating.T:Right,anyoneelse?S2:Theycanalldealwithmathproblems.S3:Theyallplayanimportantpartinourlife.T:Welldone,andwhatismostimportantisthattheyplayanimportantpartindifferentperiods.That’stosaytheyallcontributetothedevelopmentofcomputers.2. ListeningT:Nowhereisapassagewhichcanhelpyoutoknowmoreaboutthedevelopmentofcomputers.Nowpleasejustlistencarefullyandtrytofillintheblanks.Ihavebeenchangedquitealotovertime.Ibeganasa_______________in1642inFrance.In1822Iwasbuiltasan_____________.Thenin1936AlanTuringwroteabookandbuilta_____________.Astimewentby,Iwasmadesmaller.Sincethe1970s,Ihavebeenusedinofficesandhomes,firstasa___andthenasa_______.Thesechangesonlybecamepossibleasmymemoryimproved.Firstitwasstoredin____,thenon_______andlateronverysmall____.Inthe1960stheygavemeafamilyconnectedbya_______.Nowpeoplecallitthe______________ortheInternet.Manynewapplicationshavealsobeenfoundforme.Ihavebeenwidelyappliedin___________,finance,____,robots,__________,medical________and___________.Iamnowfilledwith________thatIamafriendandhelperofhumans.教師活動：播放錄音。讓學(xué)生仔細聽錄音并完成相關(guān)的填空練習(xí)。學(xué)生活動：1、聽錄音。捕捉關(guān)鍵句或關(guān)鍵詞。2、完成填空練習(xí)。設(shè)計意圖：此文章是按照時間線索描述的，條理性很強，設(shè)計成聽力題的形式更有利于培養(yǎng)學(xué)生從聲音資源獲取有關(guān)信息的能力，并為進入課文閱讀輸入相關(guān)的背景知識。（錄音見本單元的相關(guān)素材）Stepthree:FastreadingGetthestudentstoreadthepassagequicklyandaccuratelyandmeanwhilehelpthestudentstoformagoodhabitofreading.Givethestudentsacoupleofminutestolookthroughthewholepassage.Tellthemtoreadsilentlyandthenasksomedetailedquestionsaboutthetext.Encouragethemtoexpresstheirideasandchoosethemainideaofeachparagraph.T:Nowreadthetextquicklyanddothefollowingexercises.Discusstheanswerswiththewholeclass.1)Themachineisintroducingitselfmainlyaccordingto_______?A.functionB.timeC.size2)What’sthemainideaofthetext?A.Thecomputerwantstofind“whoheis”.B.Thefunctionalchangeofthecomputer.C.Thecomputerbecomespopulararoundtheworld.D.Thehistoryanddevelopmentofthecomputer.3)Trueorfalse?()①IbeganasacalculatingmachineinJapanin1642.()②In1936,Igrewrapidlybothinsizeandinbrainpower.()③Astimewentby,Iwasmadebigger.()④Sincethe1970smanynewapplicationshavebeenfoundforme.設(shè)計意圖：通過預(yù)測和快速瀏覽，了解課文內(nèi)容大意，提高學(xué)生預(yù)測能力及快速閱讀能力,利用流程圖讓學(xué)生對文章結(jié)構(gòu)更加清楚。Stepfour:DetailreadingReadingthepassagecarefullyandfinishthefollowingexercises.ReadPara1andputthesepicturesintherightorder.Finishtheshortpassageaccordingtoparagraph2.ReadaPara3andfindouttheapplicationsofcomputers.Retellthedevel