题目内容
16.There are a large number of ants worldwide.Each individual (个人的) ant hardly weighs anything,but put together they weigh the same as all of mankind.They also live nearly everywhere,except on cold mountain tops and around the poles.For animals their size,ants have been surprisingly successful,largely because of their wonderful social behavior.In colonies (群体) that are changing in size from a few hundred to tens of millions,they organize their lives with a clear division(分工) of labor.Even amazing is how they achieve this organization.Where we use sound and sight to communicate,ants depend on pheromones (外激素),chemicals sent out by individuals and smelled or tasted by fellow members of their colony.When an ant finds food,it produces a pheromones 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 of danger.
In fact,when it comes to the art of war,ants have no equal.They are completely fearless and will take on an animal much larger than themselves,attacking in large groups and achieve their goal.Such is their devotion to the common good of the colony that not only soldier ants but also worker ants will lose their lives to help win an enemy.
Behaving in this selfless and devoted way,these little animals have survived on Earth for more than 140million years,longer than dinosaurs.Because they think as one,they have a united intelligence greater than you would expect from its individual parts.
12.We can learn from the passage that ants areA.
A.not found around the poles
B.too many to achieve any organization
C.not willing to share food
D.more successful than all other animals
13.Ants can use pheromones forD.
A.escape
B.warning enemies
C.arranging labor
D.communication
14.What does the underlined expression"take on"in Paragraph 3mean?C
A.Accept
B.Play with
C.Fight against
D.Employ
15.Which of the following accounts for the survival of ants?A
A.Their behavior
B.Their size
C.Their number
D.Their weight.
分析 本文主要介绍了蚂蚁的生活环境、联系方式和无私的合作精神.除了冰冻的山顶和两极外,蚂蚁几乎生活在任何地方.当蚂蚁发现食物或遇到危险时,它们就产生一种外激素,它们用外激素来进行交流.
解答 12.A 细节理解题.根据文章第一段的"They also live nearly everywhere,excepton frozen mountain tops and around the poles."可知,除了冰冻的山顶和两极外,他们几乎生活在任何地方.所以我们在极地周围是找不到蚂蚁的.故选A.
13.D 细节理解题.根据文章第二段的"Where we use sound and sight to communicate,antsdepend primarily on pheromone (外激素)"可知,我们用声音和视觉来交流,蚂蚁主要依靠外激素来交流.所以蚂蚁可以用外激素来交流.故选D.
14.C 词义猜测题.根据文章第三段的"They are completely fearless and will readilytake on a creature much larger than 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C.
15.A 细节理解题.根据文章最后一段的"Behaving in this selfless and devoted manner,theselittle creatures have survived on Earth,for more than 140 million years,farlonger than dinosaurs."可知,这些无私的、忠实的行为,使这些小动物在地球生存了1亿4000万多年,比恐龙还要长.所以蚂蚁的生存主要是因为它们的行为.故选A.
点评 本文是科教类阅读,文章所设试题主要考查细节查找,做题关键是找出原文的根据,认真核查题意原文的异同,对于不能直接找到根据的小题注意根据相关信息,进行推理分析.
-Oh,really?________.Which language are you studying?( )
A. | So do I | B. | So have I | C. | So I do | D. | So I have |
A. | making | B. | to have made | C. | having made | D. | made |