By 2012，the world may need to cope with as many as 50 million people who have fled their h

By 2012，the world may need to cope with as many as 50 million people who have fled their homeland，not for political or economic reasons but because the environment has been so badly changed that it cannot support life. The statement has been released by the United Nations to mark UN Disaster Reduction Day.
More people are made homeless by environmental disasters than by war，according to the research by the Red Cross. That reality is proved by the earthquake in Pakistan.
The widely publicized disaster has brought aid from the global community，according to Janos Bogardi，director of the United Nations University Institute for Environment and Human Security. “If we can move swiftly in and give them a new start where they are，then they may stay in the area. Otherwise，they become environmental refugees. Environmental­related migrations are most acute in Sub­Saharan Africa，but they also affect millions of people in Asia and India. Meanwhile，the United States is witnessing increased pressure from victims of mismanaged and worsening soil and water conditions in Mexico and Latin America.” he says. Janos Bogardi says these refugees suffer from the impact of gradual environmental change—global warming，sea level rise，air and water pollution and more intense storms，floods and droughts that degrade the land. This is a slow process，but unfortunately a process that is very difficult to go backwards once final damage is done.
Janos Bogardi says they are calling on the global community to recognize the serious situation of environmental refugees and to work together to lessen the impact of environmental disaster.
【小题1】What may be the best title of the passage?A．50 Million environmental refugees by 2010B．Environmental refugees—an international problemC．The cause of environmental disasters D．Global aid pouring in【小题2】Janos Bogardi’s attitude towards solving the problem is that of being .A．constructive　　　　　　　B．compromisingC．controversialD．conservative【小题3】According to the passage，the following are the main reasons for migrations except .A．earthquakeB．water conditionsC．global communityD．worsening soil【小题4】What is implied in the passage?A．People all over the world have realized the impact of environmental disasters on refugees.B．It is time for us to take some measures to solve the problem of environmental refugees.C．The damaged soil can recover soon if people take care of it.D．It is good for people to go elsewhere to make a living.B

(答案→)B 解析：文章谈论的由环境变化而导致的难民问题将成为全球的一个灾难。并举例进行了说明。【小题1】B 主旨大意题。文章谈论的由环境变化而导致的难民问题将成为全球的一个灾难。并举例进行了说明，故B正确。【小题2】A 推理题。根据文章最后一段，Janos Bogardi对于这个问题的认识是非常到位的，提出解决问题的方法也是很有建设性的，故A正确。【小题3】C 细节题。根据第四段倒数2,3行global warming，sea level rise，air and water pollution and more intense storms，floods and droughts that degrade the land.及第四段7,8行of mismanaged and worsening soil and water conditions in Mexico and Latin America.”说明ABD都是原因，C没有提及。【小题4】B 推理题。文章阐述了这个问题的严重性，那么我们就应该采取措施来解决这个问题，故B正确。

这个解释是对的