The weather predictions for Asia in 2050 read like a story from a doomsday movie．
Many experts and green groups fear they will come true unless there is a united global effort to hold back greenhouse gas outpouring．In the decades to come, Asia—home to more than half the world's 63 billion people—will change from one climate extreme to another, with tired farmers battling droughts, floods, disease, food shortages and rising sea levels．
"It's not a pretty picture," said Steve Sawyer, climate policy adviser with Greenpeace in Amsterdam．Global warming and changes of weather patterns are already occurring and there is more than enough carbon dioxide and other greenhouse gases in the atmosphere to drive climate change for decades to come．
Already, changes are being felt in Asia but worse is likely to come．Sawyer and top climate bodies say, and could lead to mass migration and widespread human disasters．According to predictions, icebergs will melt faster, some Pacific and Indian Ocean islands will have to evacuate or build sea defenses, storms will become stronger and insects and water-borne diseases will move into new areas as the world warms．
All this comes on top of rising populations and demand for food, water and other resources．Experts say environmental worsening such as deforestation and pollution will likely enlarge the results of climate change．
In what could be a sign of the future, Japan was hit by a record of 10 typhoons and tropical storms this year, while two - thirds of Bangladesh, parts of Nepal and large areas of northeastern India were flooded, affecting 50 million people, destroying livelihoods and making tens of thousands ill．
The year before, a winter cold strike and a summer heat wave killed more than 2,000 people in India．
小题1:This passage is mainly about ____ ．
A．present situation and predictions of environmental problems in Asia.
B．the weather predictions for Asia in the future and the reasons
C．how to improve our environment
D．reasons why the world will no longer be suitable for us to live in小题2:In the future the Asian farmers will have to face the following except ____ ．
A．food shortages
B．droughts
C．wars
D．floods小题3:The underlined word "doomsday" in the first paragraph may mean____ ．
A．the hell
B．the end of the world
C．a great world war
D．disaster小题4:Which of the following is NOT true according to the passage?
A．Asian climate will change greatly．
B．Some islands may be flooded in the future．
C．More than 50 million people have been ill in Asia the year before．
D．People may meet with some new diseases borne from water．
小题1:A
小题2:C
小题3:B
小题4:C
题目分析:
小题1:推理题，由第一段The weather predictions for Asia in 2050 read like a story from a doomsday movie是本文的主题句，故选A。
小题2:细节题，由第二段最后一句with tired farmers battling droughts, floods, disease, food shortages and rising sea levels可以知道答案，所以选C。
小题3:推理题，由后面的单词movie和前面的句子a story from，可以推出是世界末日，所以选B
小题4:细节题，由最后一段The year before, a winter cold strike and a summer heat wave killed more than 2,000 people in India．可以知道答案，所以选C
点评：本文说明了亚洲的目前情况和环境问题的预测，对于文章中的细节题，要注意文章中的细节的理解。推断题测试考生在阅读基础上的逻辑推理能力，要求考生根据文章所述事件的逻辑关系，对未说明的趋势或结局作出合理的推断；或根据作者所阐述的观点理论，对文章未涉及的现象、事例给以解释。考生首先要仔细阅读短文，完整了解信息，准确把握作者观点。