【正文】 be used to express our good wishes, but also used to hurt others’ feelings. Therefore, in order not to make people unpleasant during munication, it is good to apply euphemism. Although the meaning of euphemism is similar to the replaced word, euphemism can change negative factors into positive ones. The usage of euphemism has positive function. It embodies in two aspects. One is school education。 the other is economics, poverty, and unemployment. Positive function in school educationTactics are very important to school education. Teacher’s mild attitude and incentive evaluation to students will have subtle influence on them, which in turn will make a good atmosphere for education.When talk of below the average students, we can use sentences (1) or (2) to describe:(1) He/ She is working at his/ her own leve1. (2) He/ She can do better work with help.Speaking of stupid or slow students, we denote our meaning with the word “underachiever”. As following: (1) He/ She has got less than a passing grade for a few major courses. (2) I am sorry to find him/ her underachiever for some major courses. For Students cheating on test, we can use ‘to depend on others to do his / her work’ to express, (1) He/ She has difficulty distinguishing between imaginary and factual information. (He/ She lies) (2) He/ She needs help in learning to adhere to rules and standards of fair play. (He/ She cheats) (3) He/ She is over active. (He/ She is naughty)(4) He/ She needs ample supervision in order to work well. (He/ She is lazy)(5) He/ She needs help in learning to respect the property rights of others. (He/ She steels) We must use euphemistic sentences to replace frank sentences. Since euphemistic tone is more accessible to students without hurting their feelings and encourage them to correct their shortings. Positive function in economics, poverty, unemploymentAs the above mentioned, economy euphemism plays an important role in covering up function, while poverty and unemployment euphemisms exert great influences on elegant function. Moreover, euphemism’s positive function in economics, poverty, and unemployment are obvious to see, both poor nations and individuals can get a great fort form this function. Those euphemisms are Debtcash advance。 poornegative saver。 ghettoinner city。 unemployment between jobs.Besides, we use “discontinue, lie off, ease out, give the walking ticket, pink slip” to express “fire, sack, dismiss”. Using “out of pocket, hard up, badly off, in reduced, circumstance, in difficulties” instead of “penniless, poor”. Using “the havenots, the underprivileged, the disadvantaged” to replace “the poor”. Using “on relief, on welfare benefits” to express “l(fā)iving on dole”. Using “welfare workers” instead of “unemployed workers”.From the above, euphemism has a positive effect on school education, economics, poverty and unemployment. It relieves negative views and encourages people a lot. Polite functionThe last function of euphemism is politeness. Polite function of euphemism is to avoid inelegant things and make people feel pleasant. We try out best to use some tactful words to avoid the hurt to others and show our respect, politeness, and consideration. In a civilized society, everyone needs to attach importance to politeness. In a way, the polite function of euphemism may be more important and useful in our daily life. If we want to fire somebody, we do not use the word “fire”, but use “discontinue”. “Professor” means “a person who teaches in college”, but now we also call the bass or the magician “professor” to show respect.Polite euphemism applies in almost every aspect in our society. We can sum it up into the following three sorts: Age euphemism Westerners are sensitive to age. In their opinion, “old” equals to “useless” to some extent. In order not to hurt those old persons’ feelings and selfesteems, “senior citizens” or “seasoned men” replace “old men”, for the word “senior” has many meanings. Except the word “older”, it also means higher in rank or authority.Once, Neamanetal elaborated it with a humorous tone: In the western country, there are no old people, but advanced in age, seasoned man, wellpreserved man, etc. Old man has changed into elder statesman, at least, they are called senior citizen。 or in a vague way: Old age pensioner is abbreviated of “OAP” (He Ziran, 2003: 83). The old are not indeed the old。 rather, they are longer living. Therefore, the elderly are needed to be praised a lot. Although they have just few years to live, they denote those years as “golden years”. Being afraid of being old is a psychological inclination in the western countries. Some other similar euphemisms are: mature people, greyheaded people, second childhood, and feel one’s age, etc. Communication euphemismIt is necessary to consider their feelings to “establish levels of mutual fort and promote rapport, which in turn accelerate and facilitate human munication (He Ziran, 2003: 83)”. The final goal of using euphemism is to make all of the parties relaxed and fortable with one another.Common sentences in English are: “Would you like to…? / Would you mind…? / Could you please …? / would prefer to…?” In many other public situations, we can also find these sentences: “Thank You for Not Smoking Here”。 “Thank You for Being Quiet”。 “Thank You for Not Spitting Here.” Those patterns of euphemisms are mild and polite. Surely, people are likely to make perfect munication by using euphemism. Toilet euphemism Each nation pays attention to selecting and using refined words as a fine tradition. Therefore, vulgar and uncouth expressions are replaced by euphemism.For instance, toilet is a word usually replaced by other expressions, such as powder room, restroom, men39。s, women39。s, Gents39。, ladies39。 and so on. When asking, “Where the toilet is?” We can say, “Where can I wash my hands?” “Where is the restroom?” If a female wants to