SAT高频词汇的记忆对与SAT的成绩是非常重要的，新航道小编整理SAT高频词汇之O部，供大家参考。

　　O

　　obdurate (adj.) unyielding to persuasion or moral influences (The obdurate old man

　　refused to take pity on the kittens.)

　　obfuscate (v.) to render incomprehensible (The detective did want to answer the

　　newspaperman’s questions, so he obfuscated the truth.)

　　oblique (adj.) diverging from a straight line or course, not straightforward (Martin’s

　　oblique language confused those who listened to him.)

　　oblivious (adj.) lacking consciousness or awareness of something (Oblivious to the

　　burning smell emanating from the kitchen, my father did not notice that the rolls in

　　the oven were burned until much too late.)

　　obscure (adj.) unclear, partially hidden (Because he was standing in the shadows, his

　　features were obscure.)

　　obsequious (adj.) excessively compliant or submissive (Mark acted like Janet’s servant,

　　obeying her every request in an obsequious manner.)

　　obsolete (adj.) no longer used, out of date (With the inventions of tape decks and CDs,

　　which both have better sound and are easier to use, eight-track players are now

　　entirely obsolete.)

　　obstinate (adj.) not yielding easily, stubborn (The obstinate child refused to leave the

　　store until his mother bought him a candy bar.)

　　obstreperous (adj.) noisy, unruly (Billy’s obstreperous behavior prompted the librarian

　　to ask him to leave the reading room.)

　　obtuse (adj.) lacking quickness of sensibility or intellect (Political opponents warned

　　that the prime minister’s obtuse approach to foreign policy would embroil the nation

　　in mindless war.)

　　odious (adj.) instilling hatred or intense displeasure (Mark was assigned the odious task

　　of cleaning the cat’s litter box.)

　　officious (adj.) offering one’s services when they are neither wanted nor needed

　　(Brenda resented Allan’s officious behavior when he selected colors that might best

　　improve her artwork.)

　　ominous (adj.) foreboding or foreshadowing evil (The fortuneteller’s ominous words

　　flashed through my mind as the hooded figure approached me in the alley.)

　　onerous (adj.) burdensome (My parents lamented that the pleasures of living in a

　　beautiful country estate no longer outweighed the onerous mortgage payments.)

　　opulent (adj.) characterized by rich abundance verging on ostentation (The opulent

　　furnishings of the dictator’s private compound contrasted harshly with the meager

　　accommodations of her subjects.)

　　oration (n.) a speech delivered in a formal or ceremonious manner (The prime minister

　　was visibly shaken when the unruly parliament interrupted his oration about failed

　　domestic policies.)

　　ornate (adj.) highly elaborate, excessively decorated (The ornate styling of the new

　　model of luxury car could not compensate for the poor quality of its motor.)

　　orthodox (adj.) conventional, conforming to established protocol (The company’s

　　profits dwindled because the management pursued orthodox business policies that

　　were incompatible with new industrial trends.)

　　oscillate (v.) to sway from one side to the other (My uncle oscillated between buying a

　　station wagon to transport his family and buying a sports car to satisfy his boyhood

　　fantasies.)

　　ostensible (adj.) appearing as such, seemingly (Jack’s ostensible reason for driving was

　　that airfare was too expensive, but in reality, he was afraid of flying.)

　　ostentatious (adj.) excessively showy, glitzy (On the palace tour, the guide focused on

　　the ostentatious decorations and spoke little of the royal family’s history.)

　　ostracism (n.) exclusion from a group (Beth risked ostracism if her roommates

　　discovered her flatulence.)

　　以上是SAT高频词汇，更多SAT词汇信息可以关注新航道SAT频道。