阅读理解。 Each year Ben is glad when school is clod on Martin Luther King Jr.

题文

阅读理解。     Each year Ben is glad when school is clod on Martin Luther King Jr. Day. Ben knows that this day honors an important man, but Ben does not feel connected to him. However, the small-world theory (理论) connects Ben to Dr. King. Ben's mom (0) has a clo friend, Amy (1). Amy's uncle, Mark (2), once met and spoke to John Carter (3), the son of President Jimmy Carter (4). Jimmy Carter knew Dr. King (5). In a way, Ben is only "five people a-way" from Martin Luther King Jr.      The small-world theory says that everyone in the world is connected through a short chain (链条) of people they know. Another name of this chain is degrees of paration. Each degree is a step that parates a person from someone he or she does not know. There are zero degrees of paration between a person and the people he or she knows directly. This means that there are zero degrees between Ben and his mom. There is one degree of paration when just one person parates someone from a person he or she does not know. Ben knows his mom, but he hasn't met her clo friend Amy. Therefore, Ben is one degree away from Amy. As the chain continues. Amy's uncle, Mark, is two degrees. John Carter is three degrees, and his father is four degrees. Dr. King is five degrees away from Ben. The theory says that there are no more than six degrees of paration between any two people in the world.      The small-world theory has a lot to do with math. The theory assumes (假定) that each per-son knows 100 people. Each one of tho 100 people knows 50 different people. Each of tho 50 people knows another 50 people, and so on. When someone continues the calculation' to six degrees, it is like this: 100 × 50 × 50 × 50 × 50 × 50 = 31.25 × 109. This number is greater than 31 billion (a billion=a thousand million). There are over 6 billion people in the world. The numbers show it is possible that six degrees of paration could include everyone in the world.      Does the small-world theory work? No one has ever proved it. Maybe the theory just invites people to think a little more about their places in the world. 1. Ben is two degrees away from ______. A. Jimmy Carter B. John Carter C. Amy D. Mark 2. What is the meaning of "degrees of paration" in Paragraph 2? A. The chain to connect people. B. The relations between people. C. The steps of knowing strangers. D.The paration between strangers. 3. What is the small-world theory mainly about? A. How far Ben is away from Dr. King. B. How many people one can get to know. C. How people are connected in the world. D. How the degrees of paration are t up. 4. We can learn from the article that ______. A. the small-world theory works B. more rearch is needed to prove the theory C. six degrees are needed to know the strangers D. the writer's purpo is to help people find out their places

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答案

1-4       DACB

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考点

据考高分专家说，试题“阅读理解。 Each year.....”主要考查你对 [科教类阅读 ]考点的理解。

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。