阅读理解。 Scientists are trying to make the derts into good land again.

题文

阅读理解。 Scientists are trying to make the derts into good land again. They want to bring water to the derts, so people can live and grow food. They are learning a lot about the derts. But more and more of the earth isbecoming dert all the time. Scientists may not be able to change the dert in time. Why is more and more land becoming dert? Scientists think that people make derts. People are doing bad things to the earth. Some places on the earth don't get much rain. But they still don't become derts. This is becau some green plants are growing there. Small green plants and grass are very important to dry places. Plants don't letthe sun make the earth even drier. Plants do not let the wind blow the dirt away. When a bit of rain falls, the plants hold the water. Without plants, the land can become dert more easily. 1. Derts _____. [ ]A. never have any plants or animals in them B. can all be turned into good land before long C. are becoming smaller and smaller D. get very little rain 2. Small green plants are very important to dry places becau _____. [ ]A. they don't let the sun make the earth even drier B. they don't let the wind blow the soil away C. they hold waterD. All of the above3. Land is becoming dert little by little becau _____. [ ]A. plants can't grow there B. there is not enough rain C. people haven't done what scientists wish them to doD. scientists know little about the derts 4. After reading this passage, we learn that _____. [ ]A. plants can keep dry land from becoming dertB. it is good to get rid of the grass in the dertsC. all places without much rain will become derts D. it is better to grow crops on dry land than to cut them 题型：未知难度：其他题型

答案

1-4: DDCA

解析

该题暂无解析

考点

据考高分专家说，试题“阅读理解。 Scie.....”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。