在线common roots课程其他-中国考试

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therm/o-heat; thermal - relating to heat; thermos - an insulated jar that keeps heat in; thermostat - a device that controls heat.

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tort-twist; contortion - a twisted shape or position; distort - to alter the shape or condition of; retort - reply in a manner that is supposed to change the effect of something previously said.

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tox-poison; detoxification - the process of removing poisons; toxic - poisonous; toxicology - the study of poisons; intoxicated - influenced by drugs.

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tract-pull, drag; attract - to pull objects nearer; distract - to drag attention away from something; tractor - a motor vehicle that pulls things.

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trans-across,beyond, through; transcontinental - across the continent; transfer - to move from one place to another; transport - to carry something across a space.

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tri-three, once in every three, ; triangle - a figure with 3 sides and 3 angles; triathlon - an athletic contest with 3 events; tricycle - a 3-wheeI vehicle with pedals.

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ultra-beyond, extreme, more than; ultrahigh - extremely high; ultramodern - more modern than anything else; ultrasonic - sound waves beyond human hearing.

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un-not,opposite of, lacking; unabridged - not shortened; unfair - opposite of fair; unfriendly - lacking friendliness.

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uni-one, single; unicycle - a vehicle with one wheel; unilateral - decided by only one person or nation; unique - the only one of its kind; unison - as one voice.

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urb-city; suburb - residential area on the edge of a city; urban - relating to a city; urbanology - the study of city life.

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vac-empty; evacuate - to empty a dangerous place; vacant - empty, not occupied; vacation - a time without work.

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ven/t-come; circumvent - to go around or bypass restrictions; convention - a gathering or assembly of people with a common interest; intervene - to come between.

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ver/I-truth; veracious - truthful, honest; veracity - the truth; verify - to make sure that something is true.

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verb-word; verbalize - to put into words; adverb - a word relating to a verb; proverb - a short saying that expresses a well-known truth.

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vers,-turn; reverse - to turn around; introvert - being turned towards the inside; version - a variation of an original; controversy - a conversation in which positions are turned against each other.

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vice-acting in place of, ; vice-president - the person next in rank to the president

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vid-see; evident clearly seen

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vince,-conquer; convince - to win someone over; invincible - not able to be conquered; victory - the conquest of an enemy.

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vis, vid-see; vision - the ability to see; envision - to picture in the mind; evident - clearly visible.

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viv/i-live, life; revival - the act of bringing back to life; vital - pertaining to live; vivacious - high-spirited and full of life.

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