题目内容
5.There are an extremely large number of antsworldwide.Each individual (个体的) ant hardly weigh anything,but put together they weigh roughly the same as all of mankind.They also live nearly everywhere,except on frozen mountain tops and around the poles.Foranimals their size,ants have been astonishingly successful,largely due to their wonderfulsocial behavior.
In colonies (群体) that range in size from a few hundred to tens of millions,they organize their lives with a clear division of labor.Even more amazing is how they achievethis level of organization.Where we use sound and sight to communicate,ants dependprimarily on pheromone (外激素),chemicals sent out by individuals and smelled or tastedby fellow members of their colony.When an ant finds food,it produces a pheromone that will lead others straight to where the food is.When an individual ant comes under attack or is dying,it sends out an alarm pheromone to warn the colony to prepare for a conflict as a defense unit.
In fact,when it comes to the art of war,ants have no equal.They are completely fearless and will readily take on a creature much larger than themselves,attacking in large groups and overcoming their target.Such is their devotion to the common good of the colony that not only soldier ants but also worker ants will sacrifice their lives to help defeat an enemy.
Behaving in this selfless and devoted manner,these little creatures have survived on Earth,for more than 140million years,far longer than dinosaurs.Because they think as one,they have a collective (集体的) intelligence greater than you would expect from itsindividual parts.
68.We can learn from the passage that ants areB.
A.not willing to share food
B.not found around the poles
C.more successful than all other animals
D.too many to achieve any level of organization
69.Ants can use pheromones forB.
A.escape
B.communication
C.warning enemies
D.arranging labor
70.What does the underlined expression"take on"in Paragraph 3mean?D
A.Accept.
B.Employ.
C.Play with.
D.Fight against.
71.Which of the following contributes most to the survival of ants?A
A.Their behavior.
B.Their size.
C.Their number.
D.Their weight.
分析 本文是说明文,主要讲的是蚂蚁.单个的蚂蚁显得微不足道,但成群结队的蚂蚁却蕴含着巨大的力量.蚂蚁的数量之众,加起来可以与人类的重量相媲美.蚂蚁分布极为广泛,除了寒冷的山顶和两极地区,几乎到处都有它们的踪影.
解答 68.细节理解题.根据文章第一段的句子"They alsolive nearly everywhere,except on frozen mountain tops and around the poles."可知,我们在极地周围是找不到蚂蚁的.故选B.
69.细节理解题.根据文章第二段的句子"Wherewe use sound and sight to communicate,ants depend primarily on pheromone (外激素),chemicals sent out by individuals and smelled or tasted by fellow members oftheir colony."可知,蚂蚁可以用外激素来交流.故选B.
70.词义猜测题.根据文章第三段的句子"Theyare completely fearless and will readily takeon a creature much largerthan themselves,"可知,蚂蚁打仗的时候是无畏的,将准备和比它们大得多的动物斗争.take on和fightagainst意思相近.故选D.
71.细节理解题.根据文章最后一段的句子"Behavingin this selfless and devoted manner,these little creatures have survived onEarth,for more than 140 million years,far longer than dinosaurs."可知,蚂蚁的生存主要是因为它们的行为.故选A.
点评 解答细节理解题时,一个常用的方法就是运用定位法,即根据题干和选项中的关键词从原文中找到相关的句子,与选项进行比较从而确定答案;推理判断题既要求学生透过文章表面文字信息推测文章隐含意思,又要求学生对作者的态度、意图及文章细节的发展作正确的推理判断,力求从作者的角度去考虑,不要固守自己的看法或观点.
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