2020年小升初英语阅读理解每日一练
35.Each year Ben is glad when school is closed 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 close 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 \.
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 separation. Each degree is a step that separates a person from someone he or she does not know. There are zero degrees of separation 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 separation when just one person separates someone from a person he or she does not know. Ben knows his mom, but he hasn't met her close 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 separation 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 person knows 100 people. Each one of those 100 people knows 50 different people. Each of those 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 = 31.25×10
=
9 \\* Arabic 9
. This number is greater than 31 billion (a billion = a thousand
million). There are over 6 billion people in the world. These numbers show it is possible that six degrees of separation 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 D .
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A. Jimmy Carter B.John Carter C. Amy D. Mark
(2)What's the meaning of \? C A. The chain to connect people. B. The relations between people. C. The steps of knowing strangers. D. The separation between strangers.
(3)What is the small﹣world theory mainly about? C 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 separation are set up. (4)We can learn from the article that D . A. the small﹣world theory works
B. more research is needed to prove the theory C. six degrees are needed to know the strangers
D. the writer's purpose is to help people find out their places 【解答】考查细节理解.
(1)D.根据文中关键句\, Amy's uncle, Mark, is two degrees.\可知本与艾米的叔叔马克是两度之遥,故选:D.
(2)C.根据文中关键句\she does not know.\可知分离度的每一度都是一个人认识另一个人的一个步骤,故选:C. (3)C.根据文中关键句\small﹣world theory says that everyone in the world is connected through a short chain of people they know.\可知小世界理论主要是告诉人们是如何与世界联系在一起的,故选:C.
(4)D.根据文中关键句\their places in the world.\可知小世界理论能够帮助人们找到自己在这个世界上所处的位置,故选:D.
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