Question

15．One butterfly species has come back from near extinction （灭绝）and is beginning to quickly adapt to warmer weather，a new research has found．
The research，presented at the Butterfly Conservation's international conference，found that the quino checkerspot butterfly has both moved to higher，cooler altitudes and has chosen an entirely new plant on which to lay its eggs．The butterfly，once thickly settled in Mexico and California，has witnessed a sharp drop in its numbers as climate change sees temperatures in their natural habitats（栖息地）become too hot and dry for the food plant its babies eat．
Camille Parmesan，professor at Plymouth University said that while the butterfly's movement is encouraging，it also points to the need for habitat protection．If the butterflies-and potentially other species-adapt quickly enough to move to higher altitudes，it's required that healthy environments exist in those altitudes in which the butterflies can settle．It's also required that these species have corridors（走廊）by which to move to higher altitudes，so that they can avoid getting killed by roads or long stretches of developed land．
Scientists believe the quino checkerspot is the first butterfly species to change habitat and diet so quickly，but it's not the only species to be forced to adapt to climate change．A 2013 study found that，while trees aren't moving northward as quickly as scientists expected，they're instead speeding up their lifecycles，causing younger trees to replace older trees at a higher rate．Certain desert plants，on the other hand，have migrated（迁徙）surprisingly far upslope，with some moving more than 800 feet from their 1963 lowermost boundaries．
Other species aren't adapting so quickly，however．The migration patterns of many butterfly species are being changed by earlier and warmer springs-something that's happening to some bird species as well．This changed migration timing could lead to mismatches in food and weather conditions for the migrating species，with food sources that were traditionally obtainable at a migration destination hatching or blooming（开花） too early for the birds or butterflies to consume．

72．We can learn from the passage that the quino checkerspot butterflyC．
A．will be certain to die out in the very near future because of global warming
B．is suffering from a drop in its population due to cold climate
C．has moved to cooler places and chosen another food plant for its babies
D．adapts well to their natural habitats in Mexico and California
73．How is Paragraph 3 mainly developed？A
A．By making lists．
B．By using examples．
C．By analyzing causes．
D．By making comparisons．
74．In response to warmer temperatures，the trees areA．
A．quickening their birth and death rates        
B．the only species to be forced to move uphill
C．moving northward as quickly as scientists expected
D．moved to cooler places at a rate of 800feet per decade
75．According to the last paragraph，when the species arrive at the migration destination，they mightC．
A．lay their eggs too early                 
B．suffer from severe diseases
C．have no food sources                 
D．change weather conditions．

Answer 1

分析 一项新的调查研究表明，一种濒临灭绝的蝴蝶物种开始回归到正常数量并开始迅速适应更加温暖的气候．

解答 CAAC
72．答案 C  细节理解题．由第二段第一句 the quino checkerspot butterfly has both moved to higher，cooler altitudes and has chosen an entirely new plant on which to lay its eggs 可知，the quino checkerspot butterfly 搬到了更高更寒冷的维度生活并且在一种之前它们从来没有用过的植物上产卵，故正确答案为C．
73．答案 A 主旨大意题．第三段采用总分结构，第一句先指出 it also points to the need for habitat protection，然后接下来两句 it's required that…It's also required that 分别阐述 the need for habitat protection，显然是罗列论据．C项易错，cause 意为"起因"，虽然也译作"原因"，但指的是直接导致一事物发生的另一事物，而本段第二、三句则是在阐述依据、论据、理由，与 cause 所表示的起因或原因不是同一回事．本段没有举例子，也没有作对比，由此排除B、D项．故正确答案为A．
74．答案 A 细节理解题．由第四段第二句 they're instead speeding up their lifecycles，causing younger trees to replace older trees at a higher rate 可知，树木加快了它们的生命周期，使新老更替更加快速，与A项表意一致，故正确答案为A．
75．答案 C  细节理解题  根据最后一段最后一句 with food sources that were traditionally obtainable at a migration destination hatching or blooming too early for the birds or butterflies to consume 可知，原来可以获得的食物资源可能会因开花结实过早而不能供鸟或蝴蝶食用了，故当物种迁徙至新的栖息地时可能会面临没有食物来源的困难，与C项表意一致，故正确答案为C．

点评 1、浏览．浏览的主要目的就是确定文章的体裁．如果文章属于人物传记、记叙文、故事、科普小品和有关社会文化、文史知识的文章，一般来说，应该先看看文章的试题考查内容，对题目类型做到心中有数，针对不同问题，在通读时有粗有细地去阅读，这样不仅能把握篇章的基本结构和逻辑线索，也能做好有关具体事实信息考查的试题．
2、挖掘寓意，掌握中心思想，推出结论．任何文章，作者在行文时都有一定的写作目的和主要话题．在通读篇章时应该吃透作者的写作意图，抓住文章的主题句，充分发挥自己的想象力和概括力，作出对中心思想的归纳和结论的推断．
3、把握篇章结构，利用上下文进行推测．高考中的阅读理解篇章往往是一个较完整的短文，其结构、思想，前后上下连贯统一．考试时应充分利用这一特点推测一些生词、短语在句中的含义，切莫盲目孤立猜测．
4、综观全篇，前后呼应．这是阅读理解的最后一步，在做完阅读理解题后，要立足于文章整体，再迅速读一遍短文，短文中的问题和答案的设置前后都是相关联的，有着一定的连续性，体现着文章的基本脉络．