【正文】
Unit 4 Life on MarsComic strip amp。 Wele to the unit譯 林版牛津初中英 語 九下Learning aims? 1. Get to know the items needed in space.? 2. Talk about life in special places.? 3. Discuss the advantages and disadvantages ? of life on Mars. TravellingBrainstorm? Our home? EarthNeighbours? Solar system Mars ? Mars is the fourth pla from? the sun. Mars can be hot, but? sometimes it can be very cold.? Although the temperature can be 35℃ , it can also be as low as 143℃ . Water is also a problem. About three billion years ago, there was