【正文】
ned in the past. Teaching Aids: a tape recorder, a tape ,ten word cards Teaching Procedure Step one: Warmup between the students and teacher Step two: Presentation students a thing, and ask themwhat39。s this?and how to say it in English?,next,lead students to readpenand one/a pen。 to the above way, lead students to readrulerand a/one ruler。penciland three penc