Text A Lead-in Unit 4 iscuss the following questions with your partners and share your answers with others. 1.Brainstorm and write down at least 20 words about environment. 2.What do you think of the weather in recent years?Is there a link to environmental protection? 3.What are the chief pollutants nowadays?Can you name some of them? 4.What's the relationship between economic development and environmental protection? Environmental ProtectionText A Lead-in Discuss the following questions with your partners and share your answers with others. 1.Brainstorm and write down at least 20 words about environment. 2.What do you think of the weather in recent years? Is there a link to environmental protection? 3.What are the chief pollutants nowadays? Can you name some of them? 4.What’s the relationship between economic development and environmental protection? Unit 4 Environment