eleventwelvethirteenfourteenfifteensixteenseventeeneighteennineteentwentyWhats on the blackboard? on the desk in your desk behind the door on the wall There are ten numbers on the blackboard. There is a rubber on the desk.This is my classroomThis is my classroom1. What class is Lily in?2. Whats behind the chairs?She is in Class One.There are thirteen bags behind the chairs.Points1. in 在在里里(内内,上上) on 在在上面上面 behind 在在后面后面 in the box, in the class, in my bag, in the classroom, in the wallon the wall, on your desk, on their chairsbehind the door, behind my chair, behind me/ them2. class 班级，课班级，课in the class, in my class, in Class OneWe are in Class Twelve.What class are you in?an English class3. number 数字，号码数字，号码(number=No.)13个数字个数字我的身份证号码我的身份证号码1号号thirteen numbersmy ID numberNumber One= No. One4.There be.表表:什么地方有什么东西什么地方有什么东西(存在存在),译成译成:有有 用法用法: There be +名词名词+地点状语地点状语(be就近原则就近原则)There is a pen on the desk.There are three bags behind the door.There is a pen and three bags on the desk.There are three bags and a pen on the desk. have 有，拥有有，拥有 表示所属关系表示所属关系 （我有两个新朋友。）（我有两个新朋友。） Exercise1.我这儿有十一把椅子。在椅子后面有十五只书包。我这儿有十一把椅子。在椅子后面有十五只书包。 I _ a chair here. There _ _ bags _ the chair.2.在我班上有十三位老师。看我的教室。有一块黑板在墙上。在我班上有十三位老师。看我的教室。有一块黑板在墙上。 _ are _ teachers _ my class. Look _ my _ . There _ a blackboard _ the _. 3.我们在十二班。讲台上有一块橡皮和十八个数字。我们在十二班。讲台上有一块橡皮和十八个数字。 We are _ _ _. There _ a _ and _ _ on the _ desk. have are fifteen behindThere thirteen in at classroom is on wall in Class Twelve is rubber eighteen numbers teachers