题文
From the moment that an animal is born it has to make decisions. It has to decide which of the things around it are for eating, and which are to be avoided; when to attack and when to run away. The animal is , in fact , playing a very dangerous game with its environment , a game in which it must make decision—a matter of life or death .
Animals’ ability to act reasonably is believed to come partly from what we may call “genetic (遗传性的)learning” , which is different from the individual (个体的) learning that an animal does in the course of its own lifetime . Genetic learning is learning by a
species —animals of the same kind—as a whole , and it is achieved by selection of those members of each generation that happen to act in the right way . However, the role of genetic learning depends upon how similar the future environment is to the past. The more important individual experience is likely to be, the less important is genetic learning as a means of getting over the problems of the survival game. Because most animals live in ever changing environments from one generation to the next, it is not surprising to find that very few species indeed depend wholly upon genetic learning.
In the great majority of animals , their particular ways of acting in a new environment are a compound (复合体) of individual experience added to the action patterns animals are born with .That is why animals can survive.
72．The animal’s life will come to an end .
A．if the animal makes a wrong decision B．if the animal plays a dangerous game
C．when the animal attacks its enemy D．when the animal runs too slowly
73．Very few species depend entirely on genetic learning because .
A．each generation has its own way of learning
B．their environments change all the time
C．they can act reasonably on their own
D．it takes their whole life to learn
74．When the environment doesn’t change much, .
A．animals cannot act in a right way
B．genetic learning is less important for animals
C．individual learning plays a less important role
D．animals cannot get over problems on their on their own
75．Animals’ living on generation after generation depends on .
A．their natural action pattern with their own experience
B．the lessons they have learnt during their lifetime
C．their experience in particular environments
D．the knowledge passed on by their parents 题型：未知 难度：其他题型
答案
72.A 73.B 74.C 75.A
解析
72.解析：根据第一段最后一句“...must make decisions－a matter of life or death”可知如果选择错了就会死掉。
73.解析：这是一道细节题。根据“...animals live in ever changing environments...it is not surprising to find that very few species indeed depend wholly upon genetic learning”这句可知多数动物都生活在一直变化的环境中，所以很少有生物完全依赖遗传性的学习。
74.解析：因为遗传性学习的作用依赖于环境变化程度，所以环境变化小，那遗传性学习作用就大。
75.解析：这是一道推断题。根据最后一段“...are a compound of individual experience added to the action patterns animals are born with.That is why animals can survive.”可知物种的生存依赖于本能和生存经验。
考点
据考高分专家说，试题“ From the moment tha.....”主要考查你对 [政治经济类阅读 ]考点的理解。政治经济类阅读
政治经济类文章的概念：
要做好这类阅读，平时就要注意了解国内外发生的政治经济大事，掌握一定背景知识，对这类文章的叙述特点及内容安排有一定了解，还要扩展这方面的词汇。阅读这类文章，要抓住文章的核心，即文章整体和各段主要在说什么，也要注意段落之间的逻辑关系。
如何备考政治经济类阅读理解题：
【题型说明】政治经济类阅读文章是高考常选材料之一。该类文章时代气息浓郁，语言鲜活，但熟字新义词、超纲词及专业词语多，长句、难句多。政治类文章大多数是同学们感性趣的内容，读起来倒有似曾相识的感觉，经济类文章读起来就像是雾里看花，文章看完，一头雾水。再加之这类文章的命题侧重于词义猜测、推理判断和文章主旨，同学们对这类题材是望而生畏。
【备考策略】建立心理优势。针对不同体裁的文章，我们要采取相应的阅读方法和技巧。政治类文章多采用记叙文形式，我们可采取“顺读法”，以便抓关键语句，领会文章主旨；而经济类文章则多采用说明文形式，我们则可以采取“逆读法”，先读试题，再从文章中查找有用信息。若遇到的确难读的材料。千万不用着急，因为你觉得难，其他人也一定是同感。在高考前，我们就要有这种心理准备，高考试卷肯定有一、两篇难以阅读的材料。不过，我们平时可以有意识地从报刊杂志上找一些较难的阅读材料来阅读，以培养自己迎难而上的心理素质。
【答题方法】
1、寻找主干：
根据英语中五种基本句型结构，把句子中的主语、谓语、宾语、表语等主要成分找出来，其他成分如定语、状语、补语等则易于理解。找到了句子主干，句子的意思至少明白了一半。
2、剔除从句：
在一个长句中可能会出现若干个从句，在理解时，如果把各个从句剔除出来单独理解，然后把大意拼凑起来，整个长句的意思就会明白六、七分。
3、辨别分句：
一个长句如果是由几个并列、转折、递进、对比关系的分句组成，句中往往有表示这些分句关系的连接词，只要能弄清楚分句和分句之间的逻辑关系，再把各层分句的意思加以连贯，整个长句的句意基本上能跃然脑中。
4、寻找关键词：
如果一个句子看完，一点句意的感觉也没有，下下策就是抓住句中的关键词，通过关键词大体弄懂这个长句的意思。
