初中英语牛津译林版九年级上册Unit8Detectivestories 省赛获奖

9AUnit8DetectivestoriesGrammar教学目标1．知识与技能themoveofsb(某人的行踪)，bytheway,sitdownbesidesb=sitdownnexttosb,bestressedoutwithbloodonhisshirtatthesceneofthecrime,(be)highlypossible2．情感、态度与价值观CultivatethestudentstolearntocommunicatewithothersinEnglish.重点难点1、重点Thenewwordsandthephrasesinthispart.2、难点Tousethetwokindsofsentencescorrectly教学方法task-basedapproach教学用具Taperecorder;Multi-MediaTeachingprocedures:Step1Leadin(教学目的：通过回顾reading里的内容，既复习上节课的内容，同时可以引出本课时的重点定语从句)Teacher:Whatisadetective?Students:Adetectiveissomeonewholooksforcluestosomethingimportant.TeachergoesoverReadingandintroducesmoreDefiningrelativeclauses.Forexample:WeareaskinganyonewhosawanythingunusualnearCornStreetlastnighttocontactus.Wearenowcheckingthesceneformoreclueswhichwillhelpsolvethecase.Thevictim’sparentshaveofferedarewardof50,000yuanforanyinformationthatleadstothearrestofthemurderer.Writethesentencesaboveontheblackboard.Step2Explanation1.定语从句的含义在复合句中修饰名词或代词的从句叫定语从句。Themanwholivesnexttousisalawyer.HeisthemanwhoIsawyesterday.Footballisagamewhichislikedbymostboys.Givemethebookthatyoureadjustnow.Step3DoingexercisesMoreaboutthemurderPartAMillieiswritingdownsomesentencesaboutthemurdercase.Helpherdecidewhethertheycontaindefiningrelativeclauses.Underlinethedefiningrelativeclauses.Keys:3.thatmayhelpsolvethecase.4.whohadsomethingtodowiththemurder5.whohadbloodonhisshirt（教学目的：利用教材上的练习进一步巩固学生对定语从句的引导词在具体语境中的灵活运用。）Step4Explanation被修饰的名词或代词叫先行词。定语从句通常出现在先行词之后，由关系词引出。引导定语从句的关系代词有who,which,that，whom,whose,等和关系副词where,when,why等。关系代词和关系副词在定语从句中担任句子成分。常见的关系代词有who、which和that。他们所代替的先行词是表示人或物的名词或代词，并在从句中充当主语、宾语、定语等成分。关系代词who指人，在定语从句中做主语或宾语。.YesterdayIhelpedanoldmanwholosthisway.2.关系代词which指物，在宾语从句中做主语或者宾语。.Thisisthefridgewhichheboughtyesterday.3.关系代词that指人时，相当于who;指物时，相当于which.当其在定语从句中做宾语时可省略。Step5Exercises1.AboutdetectivestoriesPartB1Simonandhisfriendsareplayingagame.Eachpersonhastosaysomethingaboutdetectivestories.Usewho,whichorthattohelpthemcompletetheirsentences.Keys:who/thatwhich/thatwho/thatwho/thatwho/that2.SolvingthecrimesPartB2AreporterisinterviewingapoliceofficeronTVaboutthemurderinWestTown.Millieistalkingnotes.Helphercompletethesentencesusingrelativeclauses.Keys:who/thatwassinglewhich/thatwascoveredinbloodwhich/thatwillhelpsolvethecasewho/thatmightbethemurdereroftheyoungman3.PartB3Afewdayslater,Millieistellingherdadaboutthemurder.Completetheirconversationwithwho,whichorthatandtheexpressionsinthebox.Keys:who/thatkilledtheyoungmanwhich/thatisn’tallowedbythelawwhich/thathisbosshadcommittedwho/thatwasseenrunningdownthestreetStep6Explanationthat和which在指物的情况下一般都可互换,但在下列情况下,一般用that而不用which。1)先行词为all,everything,nothing,something,anything,little,much等不定代词时。Iamsureshehassomething_____youcanborrow.2)先行词被all,every,no,some,any,little,much等修饰时。I’vereadallthebooks____arenotmine.3)先行词被序数词或最高级修饰时。Thisisthefirstbook____hehasread.4)先行词被theonly,thevery,thesame,thelast修饰时。Thisistheverybook___belongstohim.归纳:that,既指人又指物,作主语或宾语。which,指物,作主语或宾语。that指人时相当于who或whom，指物时相当于which。who指人，在从句中作主语或宾语。whom指人，在从句中作宾语。that,which,whom在定语从句中作宾语时,可省去。Step7ExercisesFillinthegaps.1)Theterribletyphoonkilledthepeopleandcattle____wereinthefields.2)Thewindblewdownthetallesttree____isinfrontofourschoolgate.3)Thisistheverything_____Iwaslookingfor.4)Thisisthesecondnovel____Ihaveeverread.5)Thereisnothingintheworld____canfrightenme.6.)Whoistheman____isreadingunderthetree?7)Myhometownisnotthesameone____itusedtobetwentyyearsago.Keys:thatthatthatthatthatthatthat（教学目的：此处练习中所出现的都是特殊情况下关系词的使用，在掌握课文知识的同时，让学生更加深入学会理解和运用定语从句）Step8Homework1.Rememberthenewwordsinthislesson.

2.Dotheexercisesontheworkbook.板