2018英语专八作文素材：雾霾
2018英语专八作文素材：雾霾
备考英语专八作文在平日的复习中要多准备些各类话题的作文素材，这样在考试中才会得心应手，新东方在线为英语专八考生整理了一系列英语专八作文素材供考生们参考复习。
2018英语专八作文素材14类汇总
红色预警
12月7日18时，北京首次发布空气重污染红色预警(red alert for heavy air pollution)，启动了空气污染应急制度中等级最高的措施。
This is the first time Beijing has issued a red alert for smog since 2013 when Beijing adopted an emergency response program for air pollution.
这是北京自2013年开始实施空气污染应急制度以来首次发布雾霾红色预警。
▌主要应急措施包括：
►suspend classes in all elementary and middle schools, kindergartens and extracurricular training schools;
所有的中小学、幼儿园、少年宫及校外教育机构停课;
►cars are allowed on the roads on alternating days depending on the odd or even numbers of their license plates;
机动车将依据汽车尾号实施单双号限行;
►outdoor operations of construction sites are banned and some industrial plants are required to limit or stop production.
工地停止室外施工作业，同时一些工业企业也要按要求采取限产或停产措施。
▌怎样才能启动红色预警?
►Four-tier alerts - blue, yellow, orange and red - will be issued on "heavy pollution" days. Red alert, the highest, will be issued for heavy pollution that is expected to last more than three days.
在空气重污染情况下将会发出预警，霾的预警级别由低到高分别为蓝色、黄色、橙色和红色四个等级。其中红色是最高级别，当重度空气污染持续三天以上将会发布红色预警。
▌等风来
北京市环境监测中心(Beijing Municipal Environmental Monitoring Center)表示，这次空气重污染将一直持续到周四(linger until Thursday)。在周四下午开始一股较强冷空气(cold front )的到来，将使雾霾消散( to disperse)。
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