《大气环境保护》沉浸式双语教案设计──高一地理上册第二章第七节

大气环境保护沉浸式双语教案设计高一地理上册第二章第七节教学目标1 了解大气污染所形成的全球变暖、臭氧层的破坏、酸雨等现象产生原因及危害；2 正确认识大气环境保护的重要意义；3 通过沉浸式双语讲授，学生在掌握地理知识的过程中，应用英语，提高英语应用能力。教学重点1 全球变暖2 臭氧层的破坏和保护3 酸雨的危害教学难点英语语境的建立与学科学习相结合教学准备多媒体教学过程1IntrdutinShtthestudentsthepiturethattheearthisseatinglieaanfeelingenruslhtinsuerandthepiturefAntartihlefznsphere，andaththeshrtfilabutaidrain2presentatin（教授新）21 整体思路Guidethestudentstnthreeatspheriprbles，eahprbleinstrutedinthisa:first，hatausestheprble;sendl，hatharfulaffetssuhprblebring;andfinall，easuresthatanbetaentslvetheprble22 具体教材双语的讲授。221glbalaringAfterapiturethatshthehangeftheteperatureftheearthinreentear，Iputfrardaquestin:“Istheteperatureginguprdn?Thestudentsanseredandstudentsunderstandhatis“glbalaring”ThenthestudentsdisussedtheausefglbalaringinEnglish，IlistenedttheandhelptheexpresstheselvesinEnglish，finallnlusinserereahedabuthatthehuanshulddtstptheearthfrgettinghtterinthissessin，studentslistenedtEnglishspeaingandthespeEnglishindisussinandeventhetriedtexpresstheirideasinEnglish222theprtetinfznelaerAtfirstashrtEnglishfilshhtheF“eat”the3，theniththereideluseftherefrigeratrthatusedF，Antartihlefznsphereappearedafterthat，EnglishfilshharfulaffetsabutthedepletinfznelaerInthesaea，hattdtprtetznelaeristhelastthingfrstudentstnEnglishfilisgdenvirnentfrstudentstiersetheselvesinEnglish)223aidrainputfrardquestinafterquestintfulfilltheinstrutinfthentent，suhasa)hatisaidrain;b)hitesintbeing;)heredesaidrainfrequentlhappend)haidrainisharfule)hattdtredueaidrain3exerises（堂练习）我用英文设计了几个单项选择题和双项选择题复习巩固学生所学的教学内容，同时也通过作题，学生的英语阅读理解能力得到了锻炼。练习如下：1hsetherightanserfrA，B，andD（thereisnlanserthatisright）1)arbndixideistheain_intheatsphereAgasthatanfraidrainBgreenhusegasgasthatilldaagetheznsphereDgasthatanfrludtrain2)Defrestatinillresultintheinreasef_Aarbndixide Barbnxidesulfurdixide DF3)Apartfrthenaturalfatrsthatdaagetheznsphere，thehuanbeingsbrea-dnfzneainlreferst_Athereleasefarbnxide BthereleasefarbndixidethereleasefF Dthereleasefnitrgenxide4)Intheatsphere，znsphereliesinthe_Atrpsphere Bstratsphere essphere Dhdrsphere)Theaidraininhinaisainlsulfatedaidrainbeause_AeburndfrainenergBeburnalfrainenergehaveperstatinprpelledbfireDurperstatinprpelledbater2hsethetrightansersfrA，B，andD1)Theartifiialreasnsfrtheinreasefarbndixideintheatsphereare_AburningffssilfuelsBnstrutinfperstatindefrestatinDtheseaisplluted2)Thediretreasnsfrglbalaringtraisethesealevelare_AthereillbereriversBrerainfallandlessevapratineanaterexpandduettheinreasefteperatureDeltedplarieaesthesealevelrise3)Thedaageftheznsphereresultin_ArepepleillhavesinanerBrainstrsinthehlerldglbaldrughtDdaageftheelgienvirnentandagriulture4)Thegasesthatillfraidrainare_Aarbndixide Bsulfurdixidenitrgenxide Darbnxide)Theaffetsthataidrainresultinare_AaidifthesilBrepeplegetsinaneraidifaterintheriversandausefishtdieDdeainbuildingsandulturerelis4herAnserthefllingquestinsardingtthetext:Part1glbalaring:6)hataretheainprblesfatspherienvirnenttda?_7)Istheglbalaringnlduetnaturalreasns?_8)hatstheartifiialreasnthataestheairteperaturerise?_9)Inhatasanthehuanbeingsinreasearbndixideintheatsphere?_10)Hdesthesealevelrise?_11)hatillbeaffetedhentherainfallandhuiditnditinsarundtherldhange?_12)hataretheeasurestreduetheauntfreleasedarbndixide?_Part2thedaageandprtetinfznsphere13)hatstheartifiialreasnfrtheredutinftheauntfzneinthestratsphere?_14)Iftheauntfultraviletrasreahingtheearthsurfaeinreases，hataretheharfulaffets?_1)hatanedtprtettheznsphere?_Part3thedaageandpreventinfaidrain16)hatisgenerallalledaidrai