> Spelling though belonging to the lower level of English language learning issues, it is not easy to master, even in English-speaking, well-educated people are often wrong. The reason why English spelling is very complex, mainly in the following reason two reasons: first, the source of English is very complex, which is based on the Germanic language family of Anglo - Saxon words, but on the Renaissance in the Middle Ages, the church and the intellectuals are commonly used in Latin, several hundred years after the Norman Conquest, Latin became French in the family court's language, colonial expansion and globalization process, the pre-eminent position as English, many languages, words have been absorbed in, further enhanced the diversity of English second, and the different French British history, common English usage has not been official efforts, leading to chaos in Middle English spelling of modern English spelling had a negative impact. just so on, with the vocabulary learned, we can still find some of the spelling of English words have universal law. I hope this article by discussing the factors that affect the spelling of English words, help for English learners.computer "> step / method of foreign language spelling of the impact of a greater impact on the three English language is Greek (mostly indirectly, into the English vocabulary through Latin), Latin (English 80% of the vocabulary comes from Latin, directly or indirectly), and French. 1) Greek: English retained some typical Greek spelling, such as pronounced as / k / a ch combination (chistry, orchestra, etc., as ch in Greek is one letter, h said the breathing sound), the first word combinations rh (rhyme, rhetoric, etc., because the Greek letter that corresponds with the English r in the word's first sound mark must be aspirated), ps combination (psychology, psychiatrist, etc., because ps is one in the Greek alphabet), mn combination (mnonic, etc.), and partly the English vocabulary singular and plural endings are in accordance with Greek law, such as on → a (phenomenon / phenomena , criterion / criteria), is → es (crisis / crises, thesis / theses) changes. 2) Latin: Latin influence on English spelling is very large, we shall also involved in 3-6, here introduces impact on the English suffix. with-us (such as alumnus),-a (such as alga),-um (such as the referendum, datum), etc. at the end of many English words are derived from the Latin, therefore, when in compliance with the Latin plural rule: us → i (alumni), a → ae (algae), um → a (referenda, data), etc. 3) French: English French have to shut more than words and they trouble in spelling has two main a: First, the ending of the consonant is not pronounced, such as debris in the s, buffet (n.) in t, etc., must be taken when the memory; the second is not in line with English law, such as the chef of the ch, regime in of g, etc. In addition, the characteristics of the end of French words to remember, such as-aire (questionnaire),-ette (omelette),-eau (beau). 4) American English spelling for the treatment of classical languages: American English and British English in spelling because of the many different spelling of the two classical languages ​​for different.-our and-or the difference be, color, dolor, favor other Latin American spellings are the original spelling, the corresponding British English is not. defense, license than defence, licence to have more close to the Latin original. Conversely, in dealing with ae, oe and other classical languages ​​of the double vowel, American English is often taken to simplify the position, change for the vowels e, comparing American English and British English: esthetic / aesthetic, maneuver / manoeuvre, and so on.-ter and-tre is the difference between the classical language-trum of the ending result of the different treatment, such as the center / center (Latin Man of centrum), theater / theatre (Latin for the theatrum).computer"> voice of English words in to add a suffix to follow a basic rule: as much as possible without affecting the original pronunciation of the word, such as change in the add-able, the reason to retain the original word ending in e, in order not to change g pronunciation. know the principles of this, we will be able to understand the changes and the past participle of the word at the moment when, why repeat Mute decorated with words that end in double-word write to the end of letters, such as word begin changing at the moment, if you do not double write n, augmented by sound between two vesting a single consonant sound principle decorated, begining the suffix n will be transferred to the end of sound, the sound augmented gi became open, pronunciation is / gai /, and not the original / gi /; contrast, double-write n, augmented by sound between two non-consonant combinations of double consonants have two sounds belong to the law decorated, gin is still mute decorated, pronunciation remains the same. Mono noun plus adjective suffix y variable and the same principles, such as the sun → sunny, fog → foggy, and so on.computer "> assimilation assimilation means consonant before a suffix sound was pronounced after a consonant sound augmented the impact of convergence will occur changes in English spelling, the prefix The most significant changes (mostly changes in accordance with the corresponding Latin word changes). 1) con-: in m, b, p into front com-(because it required her lips tightly three consonants can be issued, as important, computer, combine, commute), in front of r into r (if correct), in front of l into l (as colleague), before the vowels and h become co-(such as coordinate, cohort), not before the other letters change (such as connect, contrive). 2) in-: change and con-similar, with il-, im-and ir-three variants, such as innate, impossible, illegal, irrelevant, but in the vowel before the change, as inoffensive. but inpatient (different from the impatient) and input exception. 3) en-: change and con-similar, only - a variant, such as entrap, power.4) syn-: change and con-similar, with syl - and sym-two variants, such as synchronize, symmetry, syllogism.5) ab-: If abduct, abdicate, etc., before the t become abs-(eg abstract), before the v into a-(eg avert ). 6) dis-: If dissatisfied, distraction, etc., in the g, l, m, n, r, v first becomes di-(such as digress, dilute, divert, etc.), before the f becomes dif-( such as different). 7) ob-: as object, obdurate, etc., before the c becomes oc-(such as occur), before the f becomes of-(such as offend), the former into the p-op-(oppose) , before t into the os-(such as ostensible). 8) sub-: such as subsist, subvert, and so on, before the c becomes suc-(such as succeed), before the f becomes suf-(such as suffer), in g first become sug-(eg suggest), the former becomes the m sum-(such as summon), before the p into sup-(eg suppose), before the r becomes sur-(such as surrender), in c, p, t first become sus-(eg sustain) 9) ad-: as administer, adapt, and so on, before the b into ab-(such as abbreviate), in c, k, qu first become ac-(such as acquit ), before the f becomes af-(such as affirm), in g before become ag-(such as aggravate), the former becomes the l al-(such as allude), the former becomes in n an-(eg annotate), before into the p-ap-(such as appoint), before the r becomes ar-(such as arrest), in s before turned into as-(such as assist), before the t become at-(such as attire), the sc , sp, st the former into a-(such as ascend).