题目

如图，△ABC的顶点坐标分别为A（1，1），B（3，0），C（2，3）. （1） 将△ABC向左平移4个单位长度得到△A1B1C1 ， 请画出△A1B1C1. （2） 以点O为旋转中心，将△ABC顺时针旋转90°得到△A2B2C2 ， 请画出△A2B2C2； （3） 直接写出直线A2C2的解析式. 答案：解：如图所示， 解：如图所示， 解： y=−12x−12 .阅读理解。     Most people can think of a sport they would love to see in the Olympics. But they often don't realize how hard it is to add a sport to the Olympics. A sport needs to be well-organized and popular before the Interracial Olympic Committee (IOC) will consider it. An international federation must govern (控制) the sport by making rules and making sure athletes meet Olympic standards (标准). What's more, men from at least 75 countries and women from at least 40 must play the sport.      However, even meeting those conditions isn't enough. The IOC always tries to keep the member of athletes at about 10,000 for each Olympics.Since most modern Olympics already include so many athletes,introducing a new sport often means cutting other events.      The country that hosts the games is allowed to suggest what new sports should be included. While new sports are added to the Olympics,most of them will simply become events in another sports meeting. In Beijing, open water swimming will become part of swimming, while women's steeplechase (障碍赛) will be added to athletics. 1. How can a sport be added to the Olympics? 从短文中找出三个条件。 (1) ______________________________________________________(2) ______________________________________________________(3) ______________________________________________________2.根据文章内容，选择适当的词语完成句子。 ________ and ________  will become new sports in the 2008 Olympics.