阅读理解。 DNA is the whole "map" of the human body. It is something that a

题文

阅读理解。    DNA is the whole "map" of the human body. It is something that all humans have, and it tells the body what to do. DNA is the reason that we look like our parents, becau we get some of their DNA to make our own.    People have been trying to understand the human body for a long time. In I860, Mr Mendel discovered why we look the same as other people in our family. It is becau of small things called "genes"(基因) in our body. In 1953, two scientists, Watson and Crick, found out that tho small parts are really messages. They're written in the DNA with a special language.    In 1961, another two scientists found the first "word" that they could understand in that language. It shows how DNA tells the cell (细胞)to build its parts,(有几个单词看不清) the words in the DNA map, but we still do not understand what they all do. By understanding what just one "word" means, we can help to save people from veral illness. So the more we understand, the more doctors will be able to do.    Most people hope that this will help to make better medicine and help sick people: Other people worry that when wc Icam more "words" and find out more information, we will u it in the wrong way, just to make people more attractive (有吸引力的), or stop sick people getting jobs.根据短文内容，选择最佳答案。1.When did Mr Mendel discover why we look the same as other people in our family?A. In 2000.B. In 1961.C. In 1953.D. In 1860.2.What did the two scientists find in 1961? They found ______.A. all the words in the DNA mapB. small things called "genes" in our bodyC. the first "word" they could understand in that languageD. tho small parts arc written in the DNA with a special language3.How can we help sick people if we understand more "words" in the DNA map?A. Make better medicine.         B. Make them get jobs.C. Make maps for them.          D. Make them attractive.4.Which one is not true according to the article?A. Wc look like our parents becau of "genes" in our body.B. We have understood what all the words in the DNA map do.C. DNA is the whole "map" of the human body.D. DNA tells the cell to build its parts.5.What do people think about this rearch about DNA?A. It can be only bad.                    B. It can be only good.C. It can be good but won't work.          D. It can be good and bad

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答案

1-5   DCABD

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科教类阅读

科普类的阅读：科普类的阅读理解包含介绍科学知识、社会知识的短文。阅读这类短文时，要以事实为中心进行思考，抓住事物的特征、用途、相互关系等。如果是介绍社会现象的文章，要掌握所谈现象的内涵。

答题技巧：1. 加强整体意识，把握文章的主要内容。在阅读的时候可给段落标上序号，并给重要的句子和   关键词做上记号，尤其是各段中心句，为答题提供更快捷更多的信息源。 2. 审清题干，发觉和把握试题中有效的提示性信息，确认命题的角度、阅读范围和答题方式。 3. 定位阅读，强化对应意识。同时要注意原文利用和自我加工相结合。