Ⅰ.阅读理解
Climate change may make parts of the Middle East too hot for human beings, according to a new study.Researchers have studied weather conditions in the Middle East since 1970.The researchers say “very hot” days in the area have doubled over that period.
Right now, over 500 million people live there.In the future, the climate in large parts of the Middle East and North Africa could change because temperatures could get so high, and those living in the area could be at risk.Researchers say temperatures in summer in the Middle East and North Africa will continue rising.
The researchers believe that by 2050, temperatures will not fall below 30℃ at night in the hottest part of the summer.During this period, daytime temperatures could rise to 46℃.
Extreme heat could continue past the 21st century.Researchers think temperatures in the middle of the day could reach as high as 50℃.
If mankind continues to send out carbon dioxide (二氧化碳) as it does now, people living in the Middle East and North Africa will have to expect about 200 unusually hot days.
The researchers created two models.In one model, rising temperatures are limited because of reductions (减少) in greenhouse gases.The other model is said to be a “business as usual” model where nothing is done to stop climate change.
Under both models, the future of the Middle East is not good, the researchers say.They also say, sooner or later, many people may have to leave this area.
语篇解读：本文是一篇说明文。一项新的研究表明，部分中东地区的气温正变得越来越高，成为不适合人类居住的地方。
1．What has happened in the Middle East since 1970?
A．Over 500 million have left the area.
B．People have suffered more hot days.
C．Living conditions have turned better.
D．The weather conditions have improved.
解析：选B 细节理解题。根据第一段中的The researchers say “very hot” days in the area have doubled over that period.可知，自1970年以来，该地区极度炎热的天数翻了一番。
2．In the middle of the 21st century, daytime temperatures there might rise to ．
A．30℃ B．39℃
C．46℃ D．50℃
解析：选C 细节理解题。根据第三段中的daytime temperatures could rise to 46℃可知，到21世纪中期，那里白天的最高气温可能达到46摄氏度。
3．What would the second model do to deal with climate change?
A．Leave it alone.
B．Protect people from heat.
C．Reduce greenhouse gases.
D．Help people leave the area.
解析：选A 推理判断题。根据倒数第二段中的The other model is said to be a “business as usual” model where nothing is done to stop climate change.可知，第二种模式是对气候变化放任不管。
4．What does the passage mainly tell us?
A．Temperatures will continue rising.
B．People living in the Middle East are at risk.
C．Scientists find ways to reduce carbon dioxide.
D．Climate change could make parts of the Middle East terrible.
解析：选D 主旨大意题。根据第一段中的Climate change may make parts of the Middle East too hot for human beings可知，本文主要介绍了气候变化会使得中东部分地区热得难以忍受。
