英语（人教2019 B卷）-学易金卷：2022-2023学年高二下学期期中考前必刷卷

2022-2023学年高二下学期期中考前必刷卷 英语·全解全析 第一部分 阅读理解（共两节，满分50分） 第一节（共15小题；每小题2.5分，满分37.5分） 阅读下列短文，从每题所给的A、B、C、D四个选项中选出最佳选项，并在答题卡上将该选项涂黑。 A     Math Holidays Mole Day     Mole Day is celebrated annually on Oct. 23 from 6: 02 am to 6: 02 pm. It celebrates Avogadro's Number (approximately 6.02×1023）, which is a basic measuring unit in chemistry. The first Mole Day took place in 1991 and has been honored every year since. The concept of a celebratory day was created by Maurice Oehler, a retired high school chemistry teacher. It aims to develop interest in chemistry, encouraging schools around the globe to celebrate Mole Day with various activities related to chemistry.     Fibonacci Day     Nov. 23 marks Fibonacci Day, a special day that celebrates the man known as Leonardo Fibonacci who developed a mathematical concept called the Fibonacci Sequence (斐波那契数列）, in which every number is the sum of the previous two numbers. So, for example, 11/23 marks the day because 1+1 equals 2, and then 1+2 equals 3 (the date being the 23rd). It may be somewhat difficult to grasp, but the concept is not entirely theoretical.     Square Root Day     Square Root Day is a holiday that occurs when the month and day are square roots of the last two digits of the year: e.g. 2/2/2004 and 3/3/2009. The last Square Root Day was 4/4/2016 and the next one will be 5/5/2025. The holiday was created by a high school teacher Ron Gordon in Redwood City, California, who noticed that an upcoming date (9/9/1981) represented a square root.     Pi Day     The granddaddy of mathematical and scientific holidays, however, falls every year on Mar. 14. The date,3/14, represents the first three numerals in the calculation of pi; so the date is known annually as Pi Day. Pi Day was founded in 1988 by physicist Larry Shaw working at the Exploratorium in San Francisco. The event featured the eating of various pies, tossing pizza pie dough and parades and speeches. 1. Which holiday is linked to Avogadro's Number?  A. Pi Day.