基数词的学习在小学阶段的英语学习过程中是不可或缺的一部分。修订版PEP教材删减了教学数字21-99一课,只保留了三年级上册教学1-10和三年级下册教学11-20两课。笔者在执教六年级下册Unit 1一课时,发现许多学生在谈论身高体重和鞋码的时候难以表达相应数字,由此可见,教材的删减使学生“大数词”学习有所缺失。笔者认为,21-99的学习并非被删减了,而是 Cardinal number learning in the elementary school English learning process is an integral part. The revised PEP textbook has omitted the teaching figures 21-99, retaining only the third grade teaching volumes 1-10 and the third grade teaching 11-20 two classes. When I was teaching Unit 1 in the sixth grade, I found that many students were hard pressed to express the corresponding figures when discussing the height, weight and shoe size. Thus, the deletion of the teaching materials made the students lacking in the study of “big numbers” . The author believes that 21-99 learning is not cut, but