| 单词 | theory |
| 释义 | theory theory /ˈθɪə.ri/ aep /ˈθɪr.i/ noun [C or U] B2 a formal statement of the rules on which a subject of study is based or of ideas that are suggested to explain a fact or event or, more generally, an opinion or explanation: » economic theory» scientific theory» Darwin's theory of evolution» He has a theory that the hole was caused by a meteorite.Thesaurus+: ↑PhilosophyThesaurus+: ↑Ideas, concepts and theoriesin theoryB2 If something is possible in theory, it should be possible, but often it does not happen in that way: » In theory, the journey ought to take three hours, but in practice it usually takes four because of roadworks.Thesaurus+: ↑Logic and reasonWord partners for theory• ♯develop/♯formulate/♯test a theory• ♯have/♯propound a theory• ♯challenge/♯prove/♯reject a theory• ♯subscribe to/♯support a theory• a ♯new/♯plausible/♯popular theory• the theory ♯of sth• a theory ♯about sthWord Builder:–Nouns: theory, theorist–Adjectives: theoretical–Verbs: theorize–Adverbs: theoreticallyCollocations:–Verbs-lu. develop/formulate/test/work on a theory» She is working on a theory to explain the migration patterns of these birds.-lu. expound/have/propound a theory» He expounded his theories on race at great length.-lu. prove a theory» Test results have proved their theory.-lu. challenge/disprove/refute/reject a theory» Forensic tests disproved the theory that she died of a drugs overdose.-lu. subscribe to/support a theory» I don't subscribe to the theory that children need corporal punishment.-lu. apply a theory» He specialized in applying probability theory to earthquake zone construction.-lu. a theory holds/predicts sth» One theory holds that the killer was hired by her husband.–Nouns-lu. the theory of evolution/relativity» We learned about the theory of evolution at school.-lu. the theory of music» I had to pass an exam in the theory of music.–Types-lu. big-bang/chaos/domino/economic/evolutionary/feminist/linguistic/literary/Marxist/music/political/quantum/scientific/social theory» I am studying economic theory.-lu. conspiracy theory» There are many conspiracy theories surrounding his death.–Adjectives-lu. a plausible theory» He came up with a plausible theory to explain the crop circles.-lu. a half-baked theory» He expounded some half-baked theory about allowing children to control their own education.-lu. a current/new/popular/prevailing theory» The prevailing theory at the time was that the earth was flat.-lu. a unified theory» Economists cannot agree on a unified theory to explain economic behaviour.-lu. a theory is correct/wrong» Her theory about the danger of X-rays turned out to be correct.–Prepositions-lu. a theory about sth» I have a theory about his illness.-lu. the theory of sth» He revolutionized the theory of evolution.-lu. the theory behind sth» I don't know much about the theory behind psycholanalysis.-lu. in theory» In theory, the law should protect you from libel.–Phrases-lu. (so) the theory goes» The more work we do now, the easier it will be in future, or so the theory goes.• • • Extra Examples:» It was Ptolemy who propounded the theory that the earth was at the centre of the universe.» This new evidence lends support to the theory that she was murdered.» This research seems to give some validity to the theory that the drug might cause cancer.» In Jungian theory, there are certain archetypes of human personality.» In theory, women can still have children at the age of 50. |
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