1. SPEAKING Work in pairs. Look at the photos of gadgets(A-D). Do you think they are good or bad ideas? Which is your favourite and why? 2 VOCABULARY Check the meaning og the words below. Then listen and repeat. Which materials do you think are used to make the gadgets in exercise1? Materials: aluminium, cardboard, ceramic, concrete, copper, glass, gold, iron, leather, nylon, paper, plastic, rubber, steel, stone, wood 4.SPEAKING. Look around the classroom. What things are made of the materials in exercise2? Think about furniture, the building, clothes and possessions.