牛津深圳版英语七上unit 3《the earth》（writing）ppt复习课件

Unit 3,Module 2 The natural world,Oxford English,Writing Speak up,Period 4,The Earth,fumes from traffic, ,air pollution,water pollution,land pollution,waste, ,rubbish, ,plant more trees, ,clean rivers, ,put rubbish into bins, ,S1: What can we do to protect the Earth? S2: We must stop polluting the air. S1: Are there any other things we can do? S2: We can take our own shopping bags to the supermarket.,Speak up,We can pick up the rubbish everywhere. We can save water. We can use both sides of paper.,Talk time,u,D,k,a:,u:,g,What letters make these sounds? Can you find any rules?,Writing,In pairs, talk about what we can do to protect the Earth. Follow the example.,S1: What kinds of pollution are there? S2: There is air pollution, water pollution, land pollution and so on. S1: Where does air pollution come from? S2: It mainly comes from traffic and factories. S1: What can we do to protect the Earth? S2: We can plant more trees. S1: Are there any other things we can do? S2: We can ,Protect the Earth,What problems do we have? People_. There are _. People _. This _. People _. This _.,catch a lot of fish every day,fewer and fewer fish in the sea each year,burn things to make energy,pollutes the air,throw away a lot of rubbish every day,pollutes the land,People _. This _. What can we do to protect the Earth? We must stop _. _. (or) We must stop throwing away a lot of rubbish every day. (or) We must stop putting waste into rivers and seas.,Protect the Earth,put waste into rivers and seas,pollutes the water,catching a lot of fish every day,We must stop burning things to make energy,Writing,_,