a) 2x + 27 = -11 b) 2x - 35 = 15 c) 10 - x = -25 d) 3x + 17 = 2 e) (2x - 3) (6 - 2x) = 0 f) x + 1 2 = 0 g) 3 4 𝑥 = 1 2 h) 4 7 + 𝑥 = 3 2 i) 5 4 7 : 𝑥 = 13 k) 2x - 3 7 = 6 2 7 l) x - 4 5 = 3 4

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As the UK’s cities expand rapidly, problems are being caused for councils who have to meet the demand for housing. In addition to this, energy prices and pollution levels continue to increase. A solution has been developed by the Peabody Trust who have worked with environmental experts to build the Beddington Zero Energy housing development (BedZED) in Sutton, England. This unique development is an environmentally-friendly community of a hundred homes including gardens, offices, and childcare facilities with plenty of surrounding green areas. BedZED’s designers have created an attractive, affordable, urban village whose unique features benefit instead of harm the local community and environment. BedZED is a ‘zero energy’ development – no fossil fuels (coal and gas) are used and homes do not waste energy. Building materials are mostly natural, renewable or recycled. Houses face the south so that they get plenty of sunlight and their roofs are also fitted with solar panels, which change the sun’s energy into electricity. The windows consist of three layers of glass to stop heat from escaping. The homes are also fitted with the most modern energy-saving appliances. It is estimated that families’ electricity bills could be reduced by up to 60% whilst heating bills could be reduced by as much as 90%. Developers hope to achieve a 50% reduction in fossil fuel use by residents’ cars over the next decade by reducing the need to travel. Some residents will have the opportunity to work within walking distance of their homes. The Peabody Trust also aim to set up Internet shopping so that food can be delivered by local supermarkets. As the need for environmentally friendly, low-energy housing increases, BedZED may change from being a unique model, to a model for all future houses. 34.Cities in the UK ______. (1 Điểm) A. are getting expensive B. are getting larger very quickly C. have too many politicians 35.Councils are having problems because ______. (1 Điểm) A. there are too many houses B. there aren’t enough houses C. houses cost too much to build 36.The BedZED community is ______. (1 Điểm) A. very friendly B. good for the environment C. designed for people with children 37.The designers have created houses which are ______. (1 Điểm) A. quite expensive B. reasonably priced C. over priced 38.The homes ______. (1 Điểm) A. don’t use any energy B. don’t use more energy than they need C. use more energy than they need 39.______ of the materials used in the buildings are environmentally-friendly. (1 Điểm) A. Some B. All C. Nearly all 40.Specially-designed ______ keep heat inside the houses. (1 Điểm) A. appliances B. solar panels C. windows 41.______ bills could be cut by as much as 60%. (1 Điểm) A. Heating B. Electricity C. Fossil fuel 42.In the next decade some residents will be able to ______. (1 Điểm) A. work at home B. take the bus to work C. walk to work 43.BedZED is going to ______. (1 Điểm) A. develop further B. become a town C. remain unique