Question

2．Scientists say California's special landscapes （地貌） are changing gradually as the world gets warmer．Now，with a new generation of computer models，they're trying to make clear what those changes will be：Less snow？More wildfires？Fewer animals？
The new computer models allow scientists to divide the state into much smaller regions than ever before---just thirty-six square miles．These regional models give scientists a way of draping （覆盖） climate over California's complex landscape．
Scientists want to understand how warming will affect the state's people，its economy，and the thousands of species that only live in California．The State's Climate Action Team has organized a meeting last month in Los Angeles on the economic effects of these targets．
California started the only state-run climate research program three years ago and is spending about $5 million a year on it．The goal of the research is to limit the impact of such changes．
California is part of an internationally recognized"hot spot"of biodiversity （生物多样性） that e xtends north across the Oregon border and south into Baja California．It's home to 4，426 species of plants，nearly half of which are found nowhere else．
What happens in California could have great influence．If California were a nation，it would be the fifth-biggest economy in the world and the 12th-biggest producer of greenhouse gases．
28．The writer intends to tell readersD．
A．studies on the future wildlife in California by computer
B．research on the economy of California caused by getting warmer
C．a study of the future of California carried out by the California government
D．research on the future effects on California caused by getting warmer
29．The underlined word"impact"in the 4th paragraph probably has the same meaning asC．
A．importance   B．reason     C．effect               D．cost
30．More than two thousand species of plantsA．
A．exist only in this area．
B．will survive in this area．
C．have died out．
D．is being harmed by the changing weather．
31．What did the author really mean when he or she supposed （假设） California to be a nation？B
A．The author hoped it would become an independent country．
B．The author considers California as a very important area．
C．The author believed that California was a very large area．
D．The author thought California was the most important state of America．

Answer 1

分析 本文是一篇科教类阅读，属于说明文，科学家说随着全球变暖加州的特殊景观逐渐变化，现在，利用新一代的计算机模型，他们试图弄清楚这些变化将会是：少雪吗？更多的森林大火吗？更少的动物吗？本文以此展开谈论，讲述了全球变暖对加州造成影响的研究．

解答 28．答案：D．主旨大意题．根据全文内容，尤其是"Scientists say California's special landscapes （地貌） are changing gradually as the world gets warmer．Now，with a new generation of computer models，they're trying to make clear what those changes will be：Less snow？More wildfires？Fewer animals？"可知，作者主要想要告诉我们未来变暖对加州造成的影响的研究．故选D．
29．答案：C．词义猜测题．根据上下文内容可推测出"The goal of the research is to limit the impact of such changes．"的句意为"这项研究的目的是限制这类变化的影响"．故可知"impact"意为"effect"．故选C．
30．答案：A．细节理解题．根据"Scientists want to understand how warming will affect the state's people，its economy，and the thousands of species that only live in California"可知，超过两千种植物仅存在于这个区域．故选A．
31．答案：B．推理判断题．根据"What happens in California could have great influence．If California were a nation，it would be the fifth-biggest economy in the world and the 12th-biggest producer of greenhouse gases"可知，发生在加州的事可以产生很大的影响，如果加州是一个国家，它将成为世界上第五大经济和温室气体的12大生产商．可推测出作者认为加州是一个重要的区域．故选B．

点评 本文是一篇科教类阅读，题目涉及推理判断题，词义猜测题，细节理解题，主旨大意题，做题时应仔细阅读原文，结合文章上下文内容并根据所给选项的含义进行分析，从而得出正确答案．切记胡乱猜测，一定要做到有理有据．