Based on the assumption that awareness of certain aspects of underlying structure is basic to comprehending the meaning of a sentence, the module described in this report (English Sentence Structure: Programmed Exercises) is designed to increase the learner's awareness of English syntactic structure. The materials follow a programmed format with correct responses provided in the left-hand margin for immediate self-checking. Section one deals with basic sentence patterns and their parts and with parts of speech; section two distinguishes surface structure from underlying structure; and section three deals with subordinated sentences and provides experience with various kinds of sentence-combining problems related to exercises in analysis and paraphrase. The level of difficulty of the module was tested on three ninth-grade classes. Results indicate that the module would be appropriate for high school students of average and above average ability levels or for college students who have not had a course in transformational grammar. (The programmed exercise themselves compose the majority of the document.) (See related documents CS 200 570, and CS 200 571.) (HOD)