For each blank in the following passages there are four words or phrases marked A, B, C and D．Fill in each blank with the word or phrase that best fits the context．

　　For many people today, reading is no longer relaxation．To keep up their work they must read letters, reports, trade publications, interoffice 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 　　3　　 at an early age, and never get over them．The main deficiency(缺陷)　　4　　 in the actual stuff of language itself-words．Taken individually, words have 　　5　　 meaning until they are strung together into phrased, sentences and paragraphs．　　6　　 however, the untrained reader does not read groups of words．He laboriously reads one word at a time, often regressing to 　　7　　 words or passages．Regression, the tendency to look back over 9 you have just read, is a common bad habit in reading．Another habit which 　　8　　 down the speed of reading is vocalization－sounding each word either orally or mentally as one reads．

　　To overcome these bad habits, some reading clinics use a device called an 　　9　　, which moves a bar(or curtain)down the page at a predetermined speed．The bar is set at a slightly faster rate 　　10　　 the reader finds comfortable, in order to“stretch”him．The accelerator forces the reader to read fast, 　　11　　 word-by-word reading, regression and subvocalization, practically impossible．At first 　　12　　 is sacrificed for speed．But when you learn to read ideas and concepts, you will not only read faster, 　　13　　 your comprehension will improve．Many people have found their reading skill greatly improved after some training．　　14　　 Charlce Au, a business manager, for instance, his reading rate was a reasonably good 172 words a minute before the training, now it is an excellent 1,378 words a minute．He is delighted that how he can 　　15　　 a lot more reading material in a short period of time．