Topic: Unit 1A healthy body (Part A) Period: 1stTeaching Aims:Using comparatives to talk about physical appearanceImportant Points & Difficult Points:1. Revise the simple past tense and the adjectives learned before.2. Master the new words.3. Learn how to express the heights and weights.Teaching Aids: Computer, tape recorder, CD ROMTeaching StepsI. Warm up 1. Greetings. 2. Everyday English: Did you have a pleasant summer holiday? How did you spend it? What