9B Unit 4 Life on Mars 差异合作复习课扬州树人学校 Personal Presentation 话题自选，注意语音、语调;声音响亮，有感情，清晰、流畅。 Read Passage 12 （p36) 话题简述8 Passage 1 （P53-54 ） 话题简述8 Passage 2 （P54 ）Read the passage 12 （p36)Our environment is changing for the worse, so it is time for us to go green. Here are some simple steps to take at home.We can save water by taking shorter showers and turning off the tap when we brush our teeth. In order to save power, we should turn off the lights when we leave a room.Some other good habits can h
