Biking to Work More Americans than ever are riding their bicycles to work instead of driving. / They are doing this because

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答案 Biking to Work More Americans than ever are riding their bicycles to work instead of driving. / They are doing this because of gas prices, / a slowing economy and concerns about the environment. / Riding a bicycle to work does not burn fossil fuel / or create dangerous pollutants. / Experts say the effects are the most important on short trips. / The Department of Transportation says fifty percent of Americans drive eight kilometers or fewer to work. / Shorter car trips release more pollution into the air for each kilometer driven. / This is because the device in a car engine that reduces the harm-fulness of emissions / needs to warm up before it can work well. / Members of Congress have supported bicycling as environmentally friendly transportation. / Cities, counties, state governments and state highway transportation agencies / are planning the roadways of the future. / They are creating roads and paths / for bicycles in cities and between communities. /

解析骑自行车上班
在美国，骑自行车而非开车上班的人比以往要多。他们选择自行车是因为油价上涨、经济放缓以及对环境问题的担忧。骑自行车上班不需要燃烧化石燃料，也不会产生有害的污染物。国会成员也支持自行车这一环保的交通工具。各级政府和交通部正规划未来的道路，他们正在设计城市社区之间的自行车专用道。

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专业英语四级

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Biking to Work More Americans than ever are riding their bicycles to work instead of driving. / They are doing this because

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