题文
阅读理解。 A rainforest is an area covered by tall trees with the total high rainfall spreading quite equally through theyear and the temperature rarely dipping below l6℃. Rainforests have a great effect on the world environment
because they can take in heat from the sun and adjust the climate. Without the forest cover,these areas would
reflect more heat into the atmosphere, warming the rest of the world. Losing the rainforests may also influence
wind and rainfall patterns,potentially causing certain natural disasters all over the world.
In the past hundred years, humans have begun destroying rainforests in search of three major resources (资
源): land for crops, wood for paper and other products,land for raising farm animals. This action affects the
environment as a whole. For example, a lot of carbon dioxide (二氧化碳) in the air comes from burning the
rainforests. People obviously have a need for the resources we gain from cutting trees but we will suffer much
more than we will benefit.
There are two main reasons for this. Firstly, when people cut down trees,generally they can only use the
land for a year or two. Secondly, cutting large sections of rainforests may provide a good supply of wood right
now, but in the long run it actually reduces the world's wood supply.
Rainforests are often called the world's drug store. More than 25％ of the medicines we use today come
from plants in rainforests. However, fewer than l％of rainforest plants have been examined for their medical
value. It is extremely likely that our best chance to cure diseases lies somewhere in the world's shrinking
rainforests. 1. Rainforests can help to adjust the climate because they _____. A. reflect more heat into the atmosphere
B. bring about high rainfall throughout the world
C. rarely cause the temperature to drop lower than l6℃
D. reduce the effect of heat from the sun on the earth 2. What does the word"this" underlined in the third paragraph refer to? A. We will lose much more than we can gain.
B. Humans have begun destroying rainforests.
C. People have a strong desire for resources.
D. Much carbon dioxide comes from burning rainforests. 3. It can be inferred from the text that _____. A. we can get enough resources without rainforests
B. there is great medicine potential in rainforests
C. we will grow fewer kinds of crops in the gained land
D. the level of annual rainfall affects wind patterns 4. What might be the best title for the text? A. How to Save Rainforests
B. How to Protect Nature
C. Rainforests and the Environment
D. Rainforests and Medical Development 题型：未知难度：其他题型
答案
1-4: DABC解析
该题暂无解析
考点
据考高分专家说，试题“阅读理解。 A ra.....”主要考查你对 [健康环保类阅读 ]考点的理解。健康环保类阅读
健康环保累阅读概念：
健康环保类文章常是介绍科学知识、生活常识和环境保护方面的短文。体裁有记叙文、 说明文、议论文和各种应用文。
健康环保类文章阅读技巧：
健康环保类文章常是介绍科学知识、生活常识和环境保护方面的短文。阅读此类短文要以现象或事物为中心进行思考，理解现象产生的原因、条件和客观规律等。同时要抓住事物的特征、用途和相互关系等。科普环保类文章一般为说明文，从结构上看大致可分为三个部分：
第一部分一般是文章的首段，主要用来提出文章的主题，即文章想要阐述、说明的主要内容；
第二部分是文章的主体，可由若干个段落组成，对文章的主题进行展开说明；
第三部分是结尾段，对文章的主题进行归纳总结。这类文章多用一般现在时，而且一般多使用客观性词语表述。有时为了强调客观性，也常使用被动语态。
从近几年的考试题来看，科普环保类的文章越来越与人们的实际生活相接近。由于此类文章缺乏故事情节，很多同学对此类文章感到费解。但一般的科普类文章都是就事论事，需要逻辑推理和想象的时候较少，因此此类阅读题也没有同学们想象中的那么难，只要多加训练，就能较好地答题。
【阅读策略】
1、概要(Summarizing)：
阅完材料后，将所阅材料浓缩，摘要，做出所阅材料的书面或口头梗概。
2、组织(Organization)：
阅读后根据阅读内容，识别观点、人物、事件之间的关系以及文章的结构关系。如：时间关系、比较或对比关系、相关关系及因果关系等。
