6.4.4.1 6.4.6.1 Answer the questions. Why should we avoid using our cars? What means of transport are less harmful to the environment? 3 What can we do if we can't use an item again? 4 Who can help you to clean up your neighbourhood? 5 Why are trees important? 2 1 2 6 What should we do if we see rubbish on the ground? THINK! What do we need to do to keep our own neighbourhood clean? In three minutes write a few sentences. Read them to your partner. 8 What is the author's attitude? 7