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1、Unit 4 Wheres my schoolbag?Section A (1a1c)1方位介词on，in，under的用法on，in，under三者都是方位介词，后跟名词或代词构成介词短语，表示所处的不同位置。(1)on“在上”，指一物体在另一物体的表面上。(2)in“在里面”，指一物体在另一物体的内部。(3)under“在下”，指一物体在另一物体的正下方，两物体不接触。表示某物或某人在某方位时，常用句型为：主语(人或物)am/is/are介词短语(表地点)。2Wheres my schoolbag？我的书包在哪？这是由where放在句首引导的特殊疑问句。where是特殊疑问词，意为“在哪儿
2、，在哪里”，用来询问某人或某物所在的位置。句型结构为：Whereis/are主语(人或物)？意为“某人或某物在哪儿？”回答时不用yes或no，应用句型：主语is/are表示地点的介词短语。主语一般用it(he，she)或they来代替问句中的单数或复数主语。 PPT模板：素材：PPT背景：图表：PPT下载：教程： 资料下载：范文下载：试卷下载：教案下载：PPT论坛： PPT课件：语文课件：数学课件：英语课件：美术课件：科学课件：物理课件：化学课件：生物课件：地理课件：历史课件：一、根据句意及图示，用恰当的介词填空。1The dog is _the box.2The quilt is _the
3、bed.3Bobs pencil box is _the desk and his schoolbag is _the desk.4Her books are _the bookcase.5Lilys watch is _the chair.ononunderinunderinCC二、单项选择。6.Where are your books?_ on the sofa.AItsBTheyCTheyre DIt7Are the erasers in the box?No，_Ait isnt Bit isCthey arent Dthey are8_ is my watch?Its on the d
4、esk.AHow BWhereCWho DWhat9Where are her _？_ are on the table.Akey，It Bkeys，TheyCkeys，It Dkey，TheyB B10.Where is your pen?Its _ the desk.Ain BofCunder DonC under the sofa三、根据句意及汉语提示完成句子。11Is her dictionary _(在沙发下)?12Where are my books?Theyre _(在课桌内)13Your _(电脑游戏) is _(在书柜上)14Wheres my pen?Its _(在椅子上)
5、15Where is my schoolbag?Its _(在床上)in the deskcomputer gameon the bookcaseon the chairon the bed四、按要求完成句子。16The computer is on the table.(改为一般疑问句)_the computer _the table?17His keys are in_the_bag(对画线部分提问)_his keys?18The_key is on the table.(对画线部分提问)_on the table?19The ruler is in the pencil box.(改为一般疑问句)_in the pencil box?20Is it in your bag？(作否定回答)_，it _IsonWhere are What is Is the ruler NoisntAWhere AExcuse me Bkeys Cyour Csofa