For many people today, reading is no longer relaxation. To keep up their work they must read letters, reports, trade publications, inter-office communications, not to mention newspapers and magazines: a never-ending flood of words. In （ 1 ） a job or advancing in one, the ability to read and comprehend quickly can mean the difference between success and failure. Yet the unfortunate fact is that most of us are （ 2 ） readers. Most of us develop poor reading habits at an early age, and never get over them. The main problem （ 3 ） in the actual stuff of language itself - words. Taken individually, words have little meaning until they are strung（连成）together into phrased, sentences and paragraphs. （ 4 ） , however, the untrained reader does not read groups of words. He laboriously reads one word at a time, often regressing（倒退）to reread words or passages. Regression, the tendency to look back over what you have just read, is a common bad habit in reading. Another habit which （ 5 ） down the speed of reading is vocalization - sounding(用言语表达) each word either orally or mentally as one reads.