Why do hoatzins collect toget…——2010 高考英语第 66 题答案解析

【考点】OC：人文地理类阅读；P1：内容归纳；P2：文中细节．菁优网版权所有
【分析】本文讲述了在亚马逊和奥里诺科河的河岸生活的一种鸟类，文章介绍
了它的生活习性，外貌特征和气候对其生活的影响．
【解答】DBAD
63．D．主旨大意题．纵观全文，文章主要讲的是hoatzin麝雉，这种鸟类的外
貌以及生活习性．故选D．

64．B．细节理解题．根据第一段has claws（爪）on its wings when
young，和第三段可知，hoatzin在幼年期是有爪子的，而长大学会飞之后就没有
了．故选B．
65．A．推理预测题．根据文章第三段"Using these four claws, together with the
beak （喙）, they can climb about in the bushes, looking very much like primitive
birds must have
done"可知，原始鸟和小麝雉一样有爪子帮助他们攀登．故选A．

【答案】D

【解析】细节理解题．根据文章最后一段"when the rainy season begins, they
collect together in smaller living units of two to seven birds for producing
purposes."可知，他们聚集在一起要生产下一代．故选D．
【点评】本篇阅读理解主要考查考生对书面语篇的整体领悟能力和接受及处理
具体信息的能力，文章中词汇的意义比较单一、稳定、简明，不带感情色彩，
具有单一性和准确性的特点．学生应该挖掘寓意，掌握中心思想，推出结论．
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．
　
D
Science can’t explain the power of pets, but many studies have shown that the
company of pets can help lower blood pressure（血压）and raise chances of
recovering from a heart attack, reduce loneliness and spread all-round good cheer.
Any owner will tall you how much joy a pet brings. For some, an animal
provides more comfort than a husband/wife. A 2002 study by Karen Allen of the State
University of New York measured stress（紧张）levels and blood pressure in people
--- half of them pet owners --- while they performed 5 minutes of mental
arithmetic（算术）or held a hand in ice water. Subjects completed the tasks alone,
with a husband/wife, a close friend or with a pet. People with pets did it best. Those
tested with their animal friends had smaller change in blood pressure and returned
most quickly to baseline heart rates. With pets in the room, people also made fewer
math mistakes than when doing in front of other companions. It seems people feel

more relaxed（放松）around pets, says Allen, who thinks it may be because pets
don’t judge.
A study reported last fall suggests that having a pet dog not only raises your
spirits but may also have an effect on your eating habits. Researchers at Northwestern
Memorial Hospital spent a year studying 36 fat people and their equally fat dogs on
diet-and-exercise programs; a separate group of 56 people without pets were put on a
diet program. On average, people lost about I1 pounds, or 5% of their body weight.
Their dogs did even better, losing an average of 12 pounds, more than 15% of their
body weight. Dog owners didn’t lose any more weight than those without dogs but,
say researchers, got more exercise overall --- mostly with their dogs --- and found it
worth doing.