阅读理解 ECO-friendly technology was the hottest trend at the 39th Tokyo Motor Show, which opened last Friday． About 240 car manufacturers from 13 countries presented new models．Most were powered by hybrid(混合的), fuel cell(燃料电池)and electrical systems．Carmakers are championing more environmentally models amid increasing oil prices and environmental concerns． “It's now carmakers' social responsibility to protect the environment,”said Mazda president Hisakazu Imaki． Seventy-nine cars and motorcycles are being presented to the public for the first time, according to the Japan Automobile Manufacturers Association． The organizing association said the biennial(两年一次的)show, due to end on November6,was sure to have a large impact on the automobile industry． Manufacturers are currently competing in the shift from gasoline-run engines to hybrid, fuel cell or electricity-powered systems． Mazda has a new sports vehicle, which runs on a hybrid electric-petrol system．It is also showing a gasoline-hydrogen run sports car． A member of the Ford family, Mazda plans to market a hybrid version of the Tribute sport utility vehicle(SUV)next spring and enhance its co-operation with Ford in hybrid systems development． Honda's fuel cell sedan(轿车)on show uses a hydrogen-oxygen fuel．The system only sends water out its exhaust(尾气), a better solution for the environment and less polluting than hybrids． | 
