镇江市2014
高考英语短文阅读类训练（14）及答案或解析 阅读下列短文，从每题所给的四个选项（a、b、c和d）中，选出最佳选项。 a how often do you travel by plane? how much electricity do you use? these days everyone is worried about the size of their carbon footprint. in order to reduce global warming we need to make our carbon footprints smaller. but how much co2 are we responsible for?
