Unit 1,My school,Introduce,this,classroom,Excuse me,next to,Words,floor fl:(r,名词,意为“地面;地板;楼层”。 在某一层楼上,通常用介词“on,eg:The teachers office is on the third floor. 老师办公室在第三层。 Is your class on the second floor? 你们班在第二层吗,小练习:选择正确答案补全句子。 My home is _ the ninth floor. A. in B. on,B,Words,first f:st,序数词,意为“第一个”,表示顺序,序数词:第1:first 缩写为 1st 第2: second 缩写为2nd 第3: third 缩写为3rd 第4: fourth 缩写为4th 第5: fifth 缩写为 5th 依次类推,小练习: 单项选择。 The _girl next to Tom is my cousin sister. A. one B. first C. two,eg: Are