Unit4FindingyourwayGrammarTeachingAims:1.Introducetheusageofa,anandthe.2.Learnsomeprepositionsofplace.Step1.PresentationEnjoyapictureandpresentthenewword‘cage’.Step2.WarmingupEnjoymorepicturesandtalkabouttheusageofa,anandthe.Step3.Explanation不定冠词a/an的用法1.第一次提到某人或某物时。Ihaveabook.2.泛指某一类的人或物。Apandaisverylovely.判断一个单词用a还是用an，是根据其读音，而不是根据其首字母。以元音音素开头的词前用“an”，以辅音音素开头的词前“a”。如：anhour,anapple,anelephant,ausefulbook等。定冠词the的用法1.指上文提到过的人或物。如：Lucyboughtanewbike,thebikeisgreen.2.世界上独一无二的事物。如：thesunthemoon3.谈到彼此都知道的人或事物。如：Openthedoor,please.4.序数词和形容词最高级前。如：Sheisalwaysthefirsttogettoschool.5.乐器名词前用。playthepianoplaytheviolin6.定冠词与形容词连用表示一类人，加在姓氏前面表示一家人。therichtheyoung7.某些专用名词和习惯用语中用定冠词。theGreatwallbytheway不用冠词的情况1名词前已经有指示代词（this,that,these,those）、形容词性物主代词（my,his,our…）或名词所有格等限定词。2.表示语言、学科、三餐、球类运动、棋类运动的名词前。3.表示星期、月份、季节、某些节日的名词前。4.表示人名、国名、称呼语或头衔等专有名词前。5.某些固定短语中。bybike,bybus,atfirst,atwork,onfoot,gotoschool,gotobed,等。Step4.Doingexercises1.CompletethedialogueonPage47.Notes:across作介词，既可表示静态的位置关系，意为“在……对面”，也可表示动态的移动方向，通常和一些表示“移动”的动词搭配使用，意为“从……穿过”。例如：Thehotelisjustacrosstheflowershop.旅馆就在花店的对面。Itwilltakethemtwoweekstowalkacrossthedesert.徒步穿过这片沙漠将会花费他们两周的时间。2.Domoreexercises.在必要的地方用a,an,the填空。1.WhereisPeter?Heisn’tat___school.×2.Thereis___orangeinthefridge.an3.____pencilonthedeskbelongstoSandy.The4.Ihave__newbike.Iclean___bikeeveryday.a,the5.Dadoftengoesfishingin____summer.×6.A:CanIhelpyou?B:I’mlookingfor___pairofshoes.a7.Thestudentsoftengotoschoolby______bike.×8.Whoisgoodatplaying______footballinyourclass?×9._____boyinaredcoatismycousin.The10.Iliveon____thirdfloor.the11.Thereis___“h”,___“o”,___“u”intheword“hour”.an,an,a12.Simonlikestoplay____pianobuthedoesn’tliketoplay___basketball.the,×13.Beijingis____capitalofChina.theStep5.Presentation1.Usesomepicturestopresentthenewwordaboutprepositionsofplace.2.Readaboutthenewwords.Step6.Explanationover在……的正上方under在……的正下方above在……的上方(表面不接触)below在……的下方on在……的上面(表面接触)Step7.Exercises1.Dotheexercisesonpage48.2.Checktheanswers.3.Domoreexercises.填入适当的介词使句子通顺。1.Thefootballis______thedoor,soIcan’tseeit.behind2.Don’tstand__________us,orwecan’tseethefilmclearly.infrontof3.Thereisanelectricfan_____thedesk.on4.Look!Yourrubberis_____thechair.Pickitup.under5.Themoonisnow_____thetrees.above6.Eddiedoesn’twanttolive__thepalace.in7.Stephenischattingwithhisfriends___thebalcony.on8.LiMingismyneighbour.Hishouseis_____________mine.beside/nexttoStep8.Homework1.Rememberthenewwordsinthislesson.2.Finihstheexercisesintheworkbook.
