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concrete 混凝土 mud 泥 stone 石 Bricks are often used to build walls. Concrete is very strong and is used in many modern buildings. Mud is wet earth. Stone is a natural hard material. Building materials aluminium 鋁 rubber 橡膠 steel 鋼鐵 plastic 塑料 glass 玻璃 Glass is used to make windows. Plastic is light, strong, very popular, and manmade. Steel is a very strong metal. Both rubber and wood e from trees. Aluminium is a very light metal. The City of the Future Listen and choose the topics mentioned in the text. alternative energy【 】 public services【 】 schools【 】 weather【 】 shopping【 】 environment【 】 traffic【 】 entertainment【 】 crime【 】 Comprehension—Skimming Part 1 ( Paragraph 1) Part 2 (Paragraphs 212) Fast Reading 1. Match the main idea of each part. How will the students run a city in the future? What will the city of the future look like? a proper title to part one (para1) like the titles in part two. Resources for use Garbage ships Batman Nets Fet