核心词组：

　　private car 私家车

　　traffic jam 交通拥堵

　　fog and haze 雾霾

　　hazy weather 雾霾天气

　　energy consumption 能源消耗

　　clean energy 清洁能源

　　alternative energy 替代能源

　　low-carbon technology 低碳技术

　　health 健康

　　green commuting 绿色出行

　　public transportation 公共交通

　　sustainable development 可持续发展

　　emission of carbon 碳排放

　　low carbon life低碳生活

　　carbon dioxide 二氧化碳

　　green economy 绿色经济

　　circular economy 循环经济

　　effective measures 有效措施

　　the amount of carbon emission 碳排放量

　　long-term environmental health 长期的环境卫生

　　short-term rapid economicdevelopment 短期快速经济发展

　　natural resources 自然资源

　　heavy transportation pressure 沉重的交通压力

　　alleviate the traffic jam 缓解交通压力

　　observe traffic regulations 遵守交通规则

　　break traffic regulations 违反交通规则

作文素材

　　模拟范文：

　　As is portrayed in this picture, twosnails are climbing up a tree freely, and the higher one looking at a flow of carsbeing caught in a traffic jam, said to the other that “come on, see the crowdedcars, they are slower than us”。

　　What the pictureis intended to convey is that the swift developmentof private car meets with the requirements of public traffic, but also arousesthe negative externality. Heavy transportation pressure in many cities maybring much inconvenience to people and exert adverse impact on the environment.On the one hand, when traffic jam happens, short distance in the past now seemsto become terribly long, and drivers could do nothing but to wait. Therefore, alot of precious time has been wasted on the road. On the other hand, exhaustedgas emitted by cars has increased the burden of environment, especially airpollution. And therefore, the health impact of the pollution is becoming abigger concern in china's smoggy capital。

　　Therefore, effective measures should betaken to alleviate the traffic jam. Firstly, planned development of the numberof private cars should be carried out. Secondly, public transportation such asbuses and subways, which are low-carbon transportation means, should beencouraged and promoted. The effective implementation of the measures mustbenefit the coordinated development of society and economy, environment andecology。(来源：万学教育)