Aut,Auto --- self

　　In her autobiography The Story of My Life, Helen keller tells how unruly she was as a young child。

　　The autocrat was replaced by a ruler responsible to the people。

　　The baseball star wrote his autograph for an admirer who came up to him with a pencil and scorecard。

　　Many workers have lost their jobs as a result of automation。

　　An autocrat prefers his subjects to be automatons,rather than intelligent human beings。

　　After World War II, many colonies were granted autonomy and became independent nations。

　　The cause of the actor’s sudden death will not be known until the autopsy has been performed。

　　When you withdraw money,the bank compares your signature with the one in its files to see if it is authentic。

　　You do not have to defrost this refrigerator because it is equipped with an automatic defroster。

　　The Alumni Association is not under the control of the school. It is a completely autonomous group。

　　Cracy---government

　　Before 1789,France was an aristocracy。

　　When the Revolution of 1789 began,many members of the French aristocracy fled to other lands。

　　Germany under Adolf Hitler ws an autocracy。

　　The mayor was criticized for setting up an inefficient bureaucracy unresponsive to the needs of the people。

　　France helped the Thirteen Colonies establish the firse New World democracy。

　　If only millionaires can afford to run for office,we shall quickly become a plutocracy。

　　Many are opposed to a technocracy because they do not wish to be ruled by technical experts。

　　An aristocrat would like to see noblemen in control of the government。

　　Winston Churchill was born an aristocrat;he was the son of Sir Randolph Churchill。

　　The Senator used to be a Republican but is now a Democrat。

　　Dem,Demo---people

　　No responsible leader,only a demagogue,would tell the people that,if elected,he will solve all their problems。

　　The high rate of absence in the lower grades last spring was caused by the measles epidemic。

　　Federal aid was granted to the depressed area where unemployment had risen to epidemic proportions。

　　The adoption of the 19th Amendment,giving women the franchise greatly democratized the United States。

　　A nation cannot be considered democratic unless its leaders are chosen by the people in free elections。

　　Pan,panto---complete

　　A two-week vacation is wonderful for fatigue,but will not cure baldness or improve vision. It is no panaca。

　　The huge crowds in Times Squake grew noisier as the old year ticked away,and when midnight struck there was pandemonium。

　　The opposing knights,mounted and in full panoply,awaited the signal for the tournament to begin。

　　The top of the Empire State Building affords an excellent panorama of New York City and the surrounding area。

　　Not until THE GREAT DICTATOR did Charlie Chaplin play a speaking part. All his previous roles were in pantomime。

　　The Pan-American Highway links all of the countries of the Western Hemisphere rom Alaska to Chile。

　　Chron,Chrono---time

　　It is an anachronism to say that william Shakespeare “typed” his manuscripts。

　　One of the earliest accounts of King Arthur occurs in a 12th-century chronicle of the kings of Britain。

　　Bruce named all the Presidents,but he made an error in chronology when he placed Ulysses S.Grant after Abraham Lincoln,instead of after Andrew Johnson。

　　The magazines in this file are not in chronological order. I found the February issue after the October one。

　　The clocks in the library need to be synchronized; one is a minute and a half behind the other。

　　The millionaire who was caught shoplifting was found to be suffering from kleptomania。

　　For a student with an A average to quit school two months before graduation is sheer mania。

　　Though I am still fond of stamp collecting,I no longer have the mania for it that I originally had。

　　The deranged behavior of John’s brother leaves little doubt that he is a maniac。

　　The preson arrested for setting the fire had been suspected of pyromania on two previous occasions。

　　The customer protested in such a loud, violent,and maniacal manner that onlookers thought he had lost his sanity。

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Ped---child

　　There are four different encyclopedias in the reference section of our school library。

　　Patients recovering from broken limbs are housed in the hopital’s orthopedic ward。

　　A new teacher usually receives a great deal of help from the more experienced pedagogues。

　　Mr.Brown’s lessons are usually excellent. He is a master of pedagogy。

　　When the baby developed a fever, Mother telephoned the pediatrician

　　From the number of baby carriages outside his office,you can tell that Dr.Enders specializes in pediatrics。

　　Ortho---correct

　　A student who wears braces on his teeth is obviously under the care of an orthodontist。

　　American and English orthography are very much alike。

　　A deformity of the spine is a condition that requires the attention of an orthopedist。

　　There ws no religious liberty in the Massachusetts Bay Colony. Roger Williams,for example, was banished because he did not accept orthodox Puritan beliefs。

　　Vaccination was rejected as unorthodox when Dr. Jenner first suggested it。

　　Gen, Gena---race

　　Diana can trace her descent from an ancestor who fought in the Civil War. I know much less about my own genealogy。

　　According to legend,the Trojan War had its genesis in a dispute between three Greek goddesses。

　　If dairies did not homogenize milk,the cream would be concentrated at the top instead of being evenly distributed。

　　Many different racial and cultural groups are to be found in the heterogeneous population of a large city。

　　The dancers for the ballet were selected for similarity of height and build so that they might present a homogeneous appearance。

　　Meter,Metr---measure

　　When the barometer indicates a rapid drop in air pressure,it  means a storm is coming。

　　Unlike ordinary clocks and watches,chronometers are little affected by temperature changes or vibration。

　　Some giant redwood trees measure 325 feet in height and up to 30 feet in diameter。

　　When water meters are installed,it will be easy to tell how much water each home is using。

　　A meter is 3.37 inches longer than a yard。

　　All eyes,except the driver’s,were fastened on the odometer as it moved from 9,999.9 to 10,000 miles。

　　The intensity of a source of light,such as an eletric liht bulb,can be measured with a photometer。

　　I advised Dad to slow down as we were in a 30-mile-an-hour zone and his speedometer registered more than 40。

　　As the planes sped by,we were impressed by the perfect symmetry of their V-formation。

　　Ant,Anti---against

　　Japan was our antagonist in the World War II。

　　Brutus is the main character in William Shakespeare’s JULIUS CAESAR, and Antony is his antagonist。

　　The antibiotic penicillin stops the growth of bacteria causing pneumonia,tonsillitis,and certain other diseases。

　　When the body is invaded by foreign agents such as bacteria or viruses,the antibodies go to work against them。

　　By telephone,the physician prescribed the exact antidote to be given immediately to the poison victim。

　　A few of the neighbors have an antipathy to dogs,but most are ond of them。

　　The wound was carefully washed;then an antiseptic,tincture of iodine,was applied。

　　We are injected with diphtheria antitoxin produced in horses beause the antitoxin manufactured by our bodies may not be enough to prevent diphtheria。

　　“Temporary” is the antonym of “permanent”。

　　Onym,Onomato---word

　　The word “radar” is an acronym for Radio Detecting And Range。

　　“Fair”and “fare” are homonyms。

　　Notice the onomatopoeia in these lines by the poet John Drydth:” The double,double,double beat/Of the thundering drum。”

　　O.Henry is pseudonym of William Sydney Porter。

　　“Building” is a synonym for “edifice。”

　　When you write a letter to the editor,be sure to sign it. Responsible publications eill not print anonymous letters。

　　Derm,Dermato---skin

　　The patient with the skin disorder is under the care of a dermatologist。

　　The tiny cells from which hairs grow are located in the dermis。

　　Although very thin,the epidermis serves to protect the underlying dermis。

　　The lifelike models of animals that you see in museums are the work of taxidermists。

　　A hypodermic syringe is used for injecting medication beneath the skin。

　　Nom,Nem---management。

　　The science of agronomy helps farmers obtain larger and better crops。

　　Being a gastronome,my uncle is well acquainted with the best restaurants in the city。

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The fleeing murderer escaped the bullets of two pursuing policeman ran itno a third who proved to be his nemesis。

　　We would have ended the season without a defeat if not for our old nemesis,Greeley High。

　　The first astronomical observations with a telescope were made by the Italian scientist Galileo。

　　It is difficult to conceive of so astronomical a sum as one hundred billion dollars。

　　The President’s chief economic adviser expects that production will continue at the same rate for the rest of the year。

　　Which is the most economical fuel for home heating-gas,electricity,or oil?

　　Phan,Phen---show

　　When used as a wrapper,cellophane lets the purchaser see the contents of the package。

　　We must be able to distinguish between fact and fancy。

　　Anne is not sure whether she saw a face at the window.Perhaps it was only a fantasy。

　　The phantom of the slain Caesar appeared to Brutus in a dream。

　　Philip is a phenomenon in math. He always gets 100% on tests。

　　Fever and infalmmation are phenomenon of disease。

　　Young Mozart, a phenomenal child,began composing music at the age of 5。

　　Robert Fulton’s proposal to build a steamboat was was at first regarded as fantastic。

　　Therm,Thermo---heat

　　Diathermy may be proscribed for arthritis,bursitis,and other conditions requiring heat treatment。

　　During the hot spell,the thermometer reached 100 degrees on six days in a row。

　　We set the thermostat to shut off the heat when the room temperature reaches 72 degrees。

　　At Lava Hot Springs in Idaho,visitors may bathe in the thermal mineral waters。

　　It is believed that the sun gets its energy from thermonuclear reactions constantly taking place within it。

　　Prot,Proto---first

　　Brutus is the protagonist in William Shakespeare’s JULIUS CAESAR,and Antony is the antagonist。

　　The protocol initiated by the representatives of the three nations is expected to lead to a formal treaty。

　　It is a breach of protocol for a subordinate publicly to question the judgment of his uperior officer。

　　Protoplasm distinguishes living from nonliving things。

　　The crude craft in which the Wright brothers made the first successful flight in 1903 was the prototype of the modern airplane。

　　The tiny protozoans are believed to be the first animals to have appeared on earth。

　　Thesis,thet

　　I cannot vote for a condidate who stands for the antithesis of what I believe。

　　In “crafty Ulysses” and “Richard the Lion-Hearted” the epithets are “crafty” and “the Lion-Hearted”。

　　When Columbus first presented his hypothesis that the earthis round,very few belieed it。

　　Only political parties can produce the synthesis or compromise of interest necessary to make representative government work。

　　Do you agree with Elbert’s thesis that a student court would be good for our school?

　　Candidates for advanced college degrees usually must write a thesis based on original research。

　　Cotton is a natural fiber,but rayon and nylon are synthetic。

　　Aster,Astr,Astro---star

　　Most asters bloom in the fall。

　　The asterisk after “Reduced to $1.95” refers to a footnote reding “Today only。”

　　Compared to planet Earth,some asteroids are tiny,measuring less than a mile in diameter。

　　If an asteroid loses an arm to an attacker,it can grow back the missing arm。

　　An astrologer would have people believe that their lives are regulated by the movements of the stars,planets,sun and moon。

　　Yuri Ggarin,the world’s first astronaut,orbited the earth in an artificial satellite on April 12,1961。

　　Because the stars are so far away,astronomers measure their distance from Earth in “light years”。

　　The attack on Pearl Harbor was the worst disaster in the history of the U.S.Navy。

　　Gram,Graph---letter

　　“Moat” is an anagram for “atom”。

　　Ancient cartographers did not know of the existence of the Western Hemisphere。

　　Military leaders,diplomats,and businessmen use cryptograms to relay secret information。

　　After reading Mrs.Hale’s electrocardiogram,the physician assured her that her heart was working properly。

　　“The more things aman is ashamed of ,the more respectabe he is“ is one of George Bernard Shaw’s epigrams。

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“Lead” pencils do not contain lead,but rather a mixture of clay and graphite。

　　Some of Dad’s hadkerchiefs are embroidered with his monogram。

　　For his thesis,the student plans to write a monograph on the life of an obscure 19th-century composer。

　　A court stenographer has to be able to take down more than 250 words a minute。

　　The reporter’s graphic descriptin made us feel that we were present at the scene。

　　Proofs submitted by the printer should be carefully checked to eliminate typographical errors。

　　拉丁词首词根

　　Ab,A,Abs---from,off

　　The automobile was a total wreck,but the river,luckily,escaped with minor cuts and abrasions。

　　My uncle,an accountant,composes music as an avocation。

　　The aging king abdicated his throne and went into retirement。

　　The Greeks attacked Troy to recover Helen,who had veen abducted by the Trojan prince Paris。

　　Janet is doing her best to pass English because she abhors the thought of having to repeat it in summer school。

　　A wide search is under way for the manager who absconded with $10000 of his employer’s funds。

　　The fact that you were absent when the assignment was given does not absolve you from dong the homework。

　　Of the three suspects,two were found guilty and the third was absolved。

　　My dentist said I would have fewer cavities if I abstained from eating candy。

　　The mayor promised to do everything in his power to avert a strike by newspaper employees。

　　We had three absences today,which is abnormal.Usually,everyone is present。

　　Today’s art lesson came to an abrupt end when the gongs sounded for a fire drill。

　　That was an absorbing book.it held my interest from beginning to end。

　　I am in favor of the dance,but I am averse to holding it on May 25。

　　You can count on Martha’s support in your campaign for reelection.she is one of your most loyal adherents。

　　The Weather Bureau gave adeqquate warning of the advent of the hurricane。

　　Before the contest began,the champion shook hands with his adversary。

　　People who work at night have to adapt themselves to sleeping in the daytime。

　　“Gone With The Wind” was adapted for the movies。

　　Mexico adjoins the United States。

　　The judge adjourned the court to the following Monday。

　　You will not become addicted to smoking if you refuse cigarettes when they are offered。

　　The student who arived ten minutes late did not hve adequate time to finish the test。

　　The island of Cuba is adjacent to Florida。

　　Because of adverse review,the producer announced that the play will close with tonight’s performance。

　　Ante---before ;Post ---after

　　David’s antecedents came to this country more than a hundred years ago。

　　If the physician is busy when patients arrive,the nurse asks them to wait in the anteroom。

　　The purpose of a postmortem is to discover the cause of death。

　　After signing the letter,I noticed I had omited an important fact.therefore,I mentioned it in a postscript。

　　If you used yesterday’s date on a check written today,you have antedated the check。

　　Alaska antedates Hawaii as a state,having gained statehood on January 3,1959,seven months before hawaii。

　　This a postdated chek;it has tomorrow’s date on it。

　　Our classes usually begin at 8 a.m。

　　At 4 p.m. the chairman announced the debate to be closed。

　　Fter college,Mary hopes to do postgraduate work in law school。

　　Bi---two;Semi---half

　　The bicentennial of George Washington’s birth was celebrated in 1932。

　　At the end of the lesson,agroup gathered about the teacher in a semicircle to ask additional questions。

　　A diameter is a line that bisects a circle。

　　The american legislature is bicameral;it consists of the House of Representatives and the Senate。

　　A defeated candidate for the House of Representatives must wait two years before running aain,because the elections are biennial。

　　We receive only six bills a year because we are billed on a bimonthly basis。

　　Promotion in our school is semiannual;it occurs in January and June。

　　Employees paid on a semimonthly basis receive two salary checks per month。

　　French forces joined the Americans in a bilateral action against the British at the Battle of Yorktown in 1781。

　　Montreal has a large number of bilingual citizens who speak English and French。

　　Some schools in Spanish-speaking communities send bilingual notices,written in English and Spanish,to the parents。

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Congressional committees are bipartisan;they consist of both Democratic and Republican members。

　　In the morning, as you begin to awaken,you are in a semiconscious state。

　　All the houses on the block are attached,except the corner ones,which are semidetached。

　　Workers who enter a semiskilled occupation do not have to undergo a long period of training。

　　E,Ex---out;In,Im---in,against

　　The king promised to pardon any insurgent who would lay down his arms。

　　General Washington led the insurgent forces in the Revolutionary War。

　　Running water is one of the principal causes of soil erosion。

　　In 1889,Charles Steinmetz,an engineer,emigrated from Germany.。

　　In 1889,Charles Steinmetz immigrated to the United States。

　　The suggestion to lengthen the school year has evoked considerable opposition。

　　Refusing to answer the question,the witness invoke the Fifth Amendment,which protects a person from being compelled to testify against himself。

　　With a penknife,he peeled the apple and excised the wormy part。

　　The letters on the monument had been incised with a chisel。

　　The art department is exhibiting the oustanding posters produced in its classes。

　　Ellen told the child not to cry,but he could not inhibit his tears。

　　Expelled from the university because of poor grades,the student applied for readmission the following term。

　　Gregg’s low mark in the midterm impelled him to study harder for the final。

　　Irma ws so enervated by the broiling sun that she nearly fainted。

　　The accused is not the only guilty party;two others are implicated。

　　The treasurer should not have been offended when asked for a financial report.No one was impuging his honesty。

　　On July 14,1789,the people of Paris freed the prisoners incarcerated in the Bastille。

　　The name of the winner will be inscribed on the medal。

　　Steinmetz’s discoveries in the field of electricity made him one of the eminent scientists of the twentieth century。

　　At the first flash of lightning,the beach crowd scurried for shelfter from the imminent storm。

　　An exclusive club does not readily accept newcomers。

　　Before the game,each team had exclusive use of the field for a ten-minute practice period。

　　The film will be shown from August 22 to 24,inclusive,for a total of three days。

　　Extra—outside;Intra—within

　　Why don’t you join an extracurricular activity,such as a club,the school newspaper,or a team?

　　You said you would stick to the topic,but you keep introducing extraneous issues。

　　Reliable salesmen do not make extravagant claims for their product。

　　In a few months,the extravagant heir spent the fortune of a lifetime。

　　The intramural program,in which one class competes with another,gives you a greater chance to participate than the interscholastic program between teams of competing schools。

　　The Democrats are trying to heal intraparty strife so as to present a united front in the coming election。

　　Commerce between the states is regulated by the Interstate Commerce Commission,but intrastate commerce is supervised by the states themselves。

　　Patients are nourished by intravenous feeding when too ill to take food by mouth。

　　Contra,Contro,Counter---against

　　Are you on the pro or con side of this argument?

　　Before taking an important step,crefully study the pros and ons of the matter。

　　Customs officials examined the luggage of the suspected smuggler but found no contraband。

　　American controversy with Great Britain over the Oregon Territory nearly led to war。

　　By invading the neutral nation,the dictator contravened his earlier pledge to guarantee its independence。

　　The monitor ordered the student to go to the end of the line,but the teacher countermanded the order。

　　The student’s plan to drop out of school ran counter to his parents’ wishes。

　　The suspects’ fingerprints on the safe were considered incontrovertible evidence that he had participated in the robbery。

　　Inter---between

　　Between World War II and the Korean War,there was a five year interlude of peace。

　　For his role as intermediary in helping to end the Russo-Japanese War,theodore Roosevelt won the Novel Peace Prize。

　　During the intermission between the first and second acts,you will have a chance to purchase refreshments。

　　My brother would have lost the argument if Dad hadn’t interceded for him。

　　We gained possession of the ball when Russ intercepted a forward pass。

　　Broadway intersects Seventh Avenue at Time Square。

　　The summer vacation intervenes the close of one school year and the beginning of the next。

　　Let the boys settle the dispute by themselves;don’t intervene。

　　It is difficult to make interlinear notes if the space between the lines is very small。

　　The only way to get to the next town is by automobile or taxi;there is no interurban bus。

　　In,Il,Im,Ir---not,un

　　As a result of stricter enforcement,speeders are no longer able to break the law with impunity。

　　Alice refused to let me see her notes,despite the fact that I have always lent her mine.did you ever hear of such ingratitude?

　　I could read most of the signatures,but a few were illegible。

　　The new nation undertook to teach its illiterate citizens to read and write。

　　It is illogical to vote for a candidate whom you have no faith in。

　　Nearly every soap manufacturer claims his product will make dirty linens immaculate。

　　Don’t use such baby talk! People will think you are mentally immature。

　　For most of the year,the Eskimo settlements in northern Quebec are inaccessible,except by air。

　　It is almost impossible to cross our street during the rush hour because of the incessant flow of traffic。

　　No compromiss is possible when both sides remain inflexible。

　　When the visitors come to our school,we should make them feel at home;otherwise they will think we are。