【正文】
Unit 4 Life on Mars Comic strip and Wele to the unit I. Teaching aims and learning objectives By the end of the lesson, students should be able to: 1. learn some new words about the items that are needed for a space travel。 2. talk with partners about what life would be like on Mars。 3. think about the advantages and disadvantages of living in space. II. Teaching contents 1. New words and phrases: dried food, sleeping bag, Mars, helmet, air tank, power pack, gravity 2. New structures: Me neither. How do you like your life on Mars? What would