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人教版2017届高三一轮英语复习资料 必修5 Unit 5 First aid Ⅰ.词义辨析 1．Two cars had a head on collision，but fortunately there were no deaths or ________in the crash. A．damages B．wounds C．injuries D．Ruins 2．The little boy cut his finger and it’s _________. A．bleeding B．pouring C．squeezing D．choking 3．As you know，most matter has three states or forms: solid，__________ and gas. A．steam B．liquid C．tissue D．virus 4．Winter used to be extremely severe here，but these days it seems to be getting a little __________. A．swifter B．damper C．wilder D．milder 5．Experts say that high levels of debt is a major _________to economic development. A．organ B．radiation C．impression D．barrier 6．In the rainy season everything gets _________.It is hard to keep the wood dry. A．royal B．positive C．damp D．smart | 
