Lesson 2,Its on the fifth floor,Lets learn,Its on the third floor.,Where is the teachers office?(教师办公室),Exercise,Class 1,Grade 2,first floor. Class 2,Grade 3,second floor the lab,fourth floor,基数词与序数词 1,基数词：表示数目多少的词。 one two three four five six seven eight nine ten,序数词：指表示顺序第几的数词。 first second third fourth fifth sixth seventh eighth ninth tenth,基数词与序数词 2,基变序，很容易，词尾加上th，一二三特殊记，八减t，九去e，f来把“ve”替，遇到“几十几”，只变个位就可以。,重点句型,询问某人/某物在“哪里”：Where be 主语（人/物）?主语（人称代词）+be+介词短语.( in/on the 地点名词)询问某人在哪班/年级： What class/grade be 主语 in？ 主语+be+ in Class 数字,Grade 数字.,Thanks,
