2013年1月份全国先后有30个省份遭受雾霾天气侵袭．

（1）雾霾，雾和霾的统称．雾是近地面空气中的水蒸气发生的____ 现象（填一种物态变化）．雾的形成有两个基本条件．一是近地面空气中的水蒸气含量充沛．二是地面气温较____ （填“高”或“低”）．

（2）二氧化硫、氮氧化物和可吸入颗粒物这三项是雾霾主要组成，颗粒物是加重雾霾天气污染的罪魁祸首．颗粒物的英文缩写为PM，北京监测的是PM2.5，也就是直径小于2.5微米的污染物颗粒．

（3）加重城市雾霾有毒颗粒物来源：首先是汽车尾气，其次是北方到了冬季烧煤供暖所产生的废气第三是工业生产排放的____ ．第四是建筑工地和道路交通产生的扬尘．

（4）灰霾的形成主要是空气中悬浮的大量微粒和气象条件共同作用的结果．其成因有三：①在水平方向静风现象增多，②垂直方向上出现逆温，③空气中悬浮颗粒物的增加．其中静风增多也就是风流经城区时明显减弱，其主要原因是____ 

A．城市里大楼越建越高    B．城市绿化面积大    C．城市人工湖太多   D．交通发达

（5）雾霾对人的身心健康影响很大，自我防护尤其重要．

第一，雾霾天气____ （填“主张”或“不主张”）早晚开窗通风，最好等太阳出来再开窗通风．

第二，如果外出可以戴上口罩，这样可以有效防止粉尘颗粒进入体内，外出归来，应立即清洗面部及裸露的肌肤．

第三，冬季雾多、日照少，由于____ （填“红外线”或紫外线”）照射不足，人体内维生素D生成不足，有些人还会产生精神懒散、情绪低落等现象，必要时可补充一些维生素D．

第四，饮食清淡多喝水．

法布尔：法国著名____学家。英国生物学家达尔文称他是“____”。1879年，发表《昆虫记》第一卷。到1910年第10卷问世，历时31年。法国文学界曾以“____”为称号，推荐法布尔为诺贝尔文学奖候选人。可惜委员会还未作出决议，法布尔便于1925年11月去世。

    It was a village in India. The people were poor. However, they were happy. After all, their forefathers (祖先) had lived in the same way for centuries (世纪).

    Then one day, some visitors from the city arrived. They told the villagers there were some people who liked to eat frogs' legs. However, they did not have enough frogs of their own, so they wanted to buy frogs from other places.

    This seemed like money for nothing. There were millions of frogs in the fields around, and they were no use to the villagers. All they had to do was to catch them. They reached an agreement and people sent their children into the fields to catch frogs. Every week a truck (卡车) arrived to collect the frogs and give them the money. For the first time, the people could dream of a better future, but the dream didn't last (持续) long.

    It was not easy to notice (觉察到) the change at first, but it seemed like the crops (庄稼) were not doing so well. It was more worrying that the children fell ill more often, and there seemed to be more insects (虫) around lately.

    The villagers decided that they couldn't just wait to see the crops failing and the children getting weak. They would have to use the money got to buy pesticides (杀虫剂) and medicines. Soon there was no money left.

    Then the people found out the problem. It was the frog. They were not useless. They had been doing an important job—eating insects. Now with so many frogs killed, the insects were increasing (增加) more quickly. They were eating the crops and spreading diseases (传播疾病).

    Now, the people are still poor. But in the evenings they sit in the village square and listen to sounds of insects and frogs. These sounds of the night now have a much deeper meaning.

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