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 （覆蓋） 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 （生物多樣性） 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(chǎn) 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 （假設(shè)） 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 本文是一篇科教類閱讀，屬于說明文，科學(xué)家說隨著全球變暖加州的特殊景觀逐漸變化，現(xiàn)在，利用新一代的計算機模型，他們試圖弄清楚這些變化將會是：少雪嗎？更多的森林大火嗎？更少的動物嗎？本文以此展開談?wù)�，講述了全球變暖對加州造成影響的研究．

解答 28．答案：D．主旨大意題．根據(jù)全文內(nèi)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，作者主要想要告訴我們未來變暖對加州造成的影響的研究．故選D．
29．答案：C．詞義猜測題．根據(jù)上下文內(nèi)容可推測出"The goal of the research is to limit the impact of such changes．"的句意為"這項研究的目的是限制這類變化的影響"．故可知"impact"意為"effect"．故選C．
30．答案：A．細節(jié)理解題．根據(jù)"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，超過兩千種植物僅存在于這個區(qū)域．故選A．
31．答案：B．推理判斷題．根據(jù)"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，發(fā)生在加州的事可以產(chǎn)生很大的影響，如果加州是一個國家，它將成為世界上第五大經(jīng)濟和溫室氣體的12大生產(chǎn)商．可推測出作者認為加州是一個重要的區(qū)域．故選B．

點評 本文是一篇科教類閱讀，題目涉及推理判斷題，詞義猜測題，細節(jié)理解題，主旨大意題，做題時應(yīng)仔細閱讀原文，結(jié)合文章上下文內(nèi)容并根據(jù)所給選項的含義進行分析，從而得出正確答案．切記胡亂猜測，一定要做到有理有據(jù)．