第5节光的色散人教版八年级物理上册精品学案

教学目标帮助学生理解课文2.辅助学生掌握本课的单词及发音3.使学生了解并能熟练运用本课的语法知识教学方法介绍讲授法讨论法直观演示法语法教学教学方法讲授法讨论法直观演示法Now,PleaseAppreciateMyPartner’sTeachingPerformance!lesson12lifeonadesertislandPreviewfirstBackgroundintroduction场景一：荒岛是阳光终日普照的天堂。在那里，生活简单又美好成熟的水果从树上掉下来，人们根本无需劳动场景二：荒岛生活很可怕，要么饿死，要么像鲁滨孙那样，天天盼船来，却总没见船影•很少有人能有机会去弄个究竟,最近有两个人,在一座珊瑚岛上呆了5天•他们驾着一条严重损•坏的小船从维尔京群岛阿密修理。途中，船开始下沉他们迅速把食物、火柴、罐装•啤酒往一只救生筏上装。然后在加勒比海上划行了几英里，到了一座珊瑚岛上岛上几乎没有一颗树，也没有淡水•他们用像皮艇蓄积雨水。由于他•们随身带了一支捕鱼枪，因此，吃饭不愁。他们天天捕捉龙虾和鱼，正如其中一位所说，•吃得“像国王一样好”。Whatwasexceptionalaboutthetwomen’sstayontheisland?Questions:Grammarandvocabulary:Mostofushaveformedanunrealisticpictureoflifeonadesertisland.Wesometimesimagineadesertislandtobeasortofparadisewherethesunshines.Lifethereissimpleandgood.Ripefruitfallsfromthetreesandyouneverhavetowork.Theothersideofthepictureisquitetheopposite.Lifeonadesertislandiswretched.YoueitherstarvetodeathorlivelikeRobinsonCrusoe,waitingforaboatwhichnevercomes.Perhapsthereisanelementoftruthinboththesepictures,butfewofushavehadtheopportunitytofindout.Mostofushaveformedanunrealisticpictureoflifeonadesertisland.formapictureformanopinion/impression/ideaMostofushaveformedanunrealisticpictureoflifeonadesertisland.unrealisticrealisticunrealYoueitherstarvetodeathorlivelikeRobinsonCrusoe,waitingforaboatwhichnevercomes.starveI’mstarving/starved.Thekidisstarvedforattention.渴望得到Perhapsthereisanelementoftruthinboththesepictures,butfewofushavehadtheopportunitytofindout.anelementofanelementofsurprise/danger/doubt/jealousyAttributiveclause•Wesometimesimagineadesertislandtobeasortofparadisewherethesunshines.•YoueitherstarvetodeathorlivelikeRobinsonCrusoe,waitingforaboatwhichnevercomes.Theyquicklyloadedasmallrubberdinghywithfood,matches,andcansofbeer…•load…withloadafilm/aCD/bullets…butthisdidnotprovetobeaproblem.•proveThenewdeviceproved(tobe)useful.Themancollectedrainwaterintherubberdinghy.•collectcollectstamps/coinsWearecollecting(money)forthehomeless.Theycaughtlobsterandfisheveryday,and,asoneofthemputit‘atelikekings’.•putHowshallIputit?Isimplycannotputmyfeelingsintowords.Whenapassingtankerrescuedthemfivedayslater,bothmenweregenuinelysorrythattheyhadtoleave.•genuinelyItwasthefirstgenuinelyfreeelectioninthecountry.课堂练习1Wethinkofadesertisland_asortofparadise.AtobeBasbeingCisDbe2But_havehadtheopportunitytofindout.AwefewBhardlyanybodyClittlepeopleDnotmany3After_afewmilesacrosstheCaribbean,theyarrivedatasmallcoralisland.AtheyrowedBrowedCrowingDtorow4Bothmengenuinelyregretted.AtheirleaveBtohavetoleaveChavingtoleavingDtheymusthaveleftANSWER:BDCC根据课本选择填空StructureVocabulary1Adesertislandisplace.AanunpopularBanuninhabitedCadesertedDabarren2Theothersideofthepictureisdifferent.AnaturallyBratherCreallyDentirely3Butthiswasnottobeaproblem.AdemonstratedBthoughtCshownDfound4And,asoneofthemit,they‘atelikekings’.AexpressedBplacedCtoldDsaidANSWER:BDDA课后练习WritingacompositionImaginespendingtwoweeksonanuninhabiteddesertisland.Innotmorethan200words,describewhatyoudidthere.本课教学人员名单：罗文婷08341216罗亚玲08341217吴咪咪08341223李蔻08341214邓华丽08341104余天琼08341126Thankyouforyourattention!