这里有书籍推荐:
语法:The Complete Guide to ACT English (英语) EricaL. Meltzer (国内amazon.cn有卖)
词汇:Essential Words for theTOEFL ( Steven J. Matthiesen) 王玉梅托福词汇 (有词频)
阅读: Cracking the ACT with 6 Practice Tests, Princeton Review (其中的阅读部分很有帮助) The Complete Guide to ACT Reading, Erica L. Meltzer (这本书国内还没有卖,要在美国amazon.com上买)
模拟题: The Real ACT, 3rdEdition 2011
http://haiwaiabc.com/forum.php?mod=viewthread&tid=2033&extra=page%3D1