在美国,SAT 是最主要的全国性大学入学考试.在以前,SAT 是 Scholastic Aptitude Test(学术倾向考试)的缩写.在1993年,SAT 被改名为 SAT Ⅰ:Reasoning Test,同时以前的 Achievement Tests 被改名为 SAT Ⅱ:Subject Tests.到了2004年,数字“Ⅰ”和“Ⅱ”被舍弃,这个考试被重新改名为 SAT Reason-ing Test(SAT 推理考试,经常被简称为 SAT)和SAT Su bject Tests(SAT 科目考试).SAT 推理考试一共包括三个部分:阅读(criticalreading)、数学、写作.其中数学部分共54道题,用时70分钟. In the United States, the SAT is the leading national college entrance examination, which used to be the acronym for the Scholastic Aptitude Test. In 1993, the SAT was renamed as SAT I: Reasoning Test while previous Achievement Tests were Renamed SAT II: Subject Tests. By 2004, numbers “I” and “II” were discarded and the test was renamed SAT Reason-ing Test SAT Su bject Tests The SAT reasoning exam consists of three parts: critical reading, math, writing, including a total of 54 questions in 70 minutes.