THIS 11TH-GRADE LANGUAGE UNIT ON ADVERBIALS IS DESIGNED TO SHOW THAT THE TRANSFORMATION WHICH ACCOUNTS FOR THE EMBEDDING OF RELATIVE CLAUSES ALSO EXPLAINS THE PRESENCE OF ADVERBIAL CLAUSES, THEREBY REINFORCING THE PRINCIPLE THAT THERE ARE GENERAL RULES WHICH EXPLAIN ECONOMICALLY MANY COMPLEX LANGUAGE STRUCTURES. THE TEACHER VERSION FOR THE UNIT CONTAINS INTRODUCTORY MATERIAL COVERING (1) ADVERBIAL PREPOSITIONAL PHRASES OF MANNER, INSTRUMENT, LOCATION, DIRECTION, REASON, FREQUENCY, AND DURATION, (2) THE EMBEDDING OF ADVERBIAL CLAUSES IN ADVERBIAL PHRASES, AND (3) THE ABILITY OF TRANSFORMATIONAL GRAMMAR TO EXPLAIN STRUCTURAL AMBIGUITY. THIS IS FOLLOWED BY AN ANSWER KEY TO THE EXERCISES CONTAINED IN THE STUDENT VERSION. FOLLOWING A BRIEF INTRODUCTORY REVIEW OF BASIC PHRASE STRUCTURE RULES FOR THE MANNER ADVERBIAL, THE STUDENT VERSION CONTAINS MAJOR DISCUSSIONS ON EXPANSION OF PHRASE STRUCTURE RULES, ON ADVERBIAL PHRASES CONTAINING RELATIVE CLAUSE EMBEDDINGS, AND ON THE SYNTACTICAL ORDER OF ADVERBIALS. EXERCISES IN CONSTRUCTING BRANCHING DIAGRAMS FOR SENTENCES CONTAINING VARIOUS TYPES OF ADVERBS ARE APPENDED TO THE FIRST OF THESE DISCUSSIONS. SEE ALSO ED 010 129 THROUGH ED 010 160, ED 010 803 THROUGH ED 010 832, TE 000 195 THROUGH TE 000 220, AND TE 000 227 THROUGH TE 000 249. (RD)