以下是一些非常受欢迎的托福单词书:
1. The Vocabulary Builder Workbook: Simple Lessons and Activities to Teach Yourself Over 1,400 Must-Know Words by Chris Lele2. Barrons Essential Words for the TOEFL by Stephen J. Matthiesen3. Princeton Review Essential TOEFL Vocabulary: 500 Essential Vocabulary Words to Help Boost Your TOEFL Score by the Princeton Review4. Kaplan TOEFL Vocabulary Prep by Kaplan Test Prep5. McGraw-Hill Education 400 Must-Have Words for the TOEFL, 2nd Edition by Lynn Stafford-Yilmaz and Lawrence Zwier.这些单词书都很好评,你可以选择其中一个或几个来帮助你准备托福考试。