Unit 2 Saving the Earth Topic 3 Would you like to be a greener person? Section D Teaching aims and demands 1. Learn a new word: journey, towel, offer 2. Review some compound sentences: (1) About 35% of the garbage in Hong Kong can be recycled every year while the rest cant. (2) People produce power from coal, but it is very dirty and causes acid rain. 3. Learn how to be a greener person. 1 Work alone Listen to the passage. Fill in the blanks with the words you hear. Harm We have _ the earth and
