Question

theory theory ★★★★☆/θɪ͟əri/1[N-VAR	可变名词]理论；学说 A theory is a formal idea or set of ideas that is intended to explain something.   [usu with supp]Marx produced a new theory about historical change based upon conflict between competing groups...马克思创立了一种新理论，认为历史的演变是基于对立集团之间的冲突之上的。Einstein formulated the Theory of Relativity in 1905.爱因斯坦于 1905 年创立了相对论。2[N-COUNT	可数名词]观点；见解 If you have a theory about something, you have your own opinion about it which you cannot prove but which you think is true. There was a theory that he wanted to marry her...有人认为他想娶她。My theory about divorce is that it's not the split-up that damages children, it's how it is handled.我对离婚的看法是，伤害孩子的不是婚姻的破裂，而是处理离婚的方式。3[N-UNCOUNT	不可数名词](实践科目、技能的)理论基础 The theory of a practical subject or skill is the set of rules and principles that form the basis of it.   [usu with supp]He taught us music theory.他教我们乐理。...graduates who are well-trained in both the theory and practice of statistics.在统计学理论和实践两方面都训练有素的毕业生4[PHRASE	短语]从理论上说；照理说 You use in theory to say that although something is supposed to be true or to happen in the way stated, it may not in fact be true or happen in that way.   [PHR with cl]A school dental service exists in theory, but in practice, there are few dentists to work in them.照理说，学校也有牙医诊所，可实际上，里面的牙医寥寥无几。 theorytheo‧ry /ˈθɪəri $ ˈθiːəri/ ●●● S2 W1 AWL noun (plural theories)  Word Origin Examples Thesaurus Collocations Phrases Word family 1[countable] an idea or set of ideas that is intended to explain something about life or the world, especially an idea that has not yet been proved to be true → theoreticaltheory about/on different theories about how the brain workstheory of Darwin’s theory of evolutiontheory that the theory that light is made up of waves2[uncountable] general principles and ideas about a subject:  Freudian theory has had a great influence on psychology.political/economic/literary etc theory I’m taking a course on political theory.3in theory something that is true in theory is supposed to be true, but might not really be true or might not be what will really happen  OPP  in practice:  In theory, everyone will have to pay the new tax.4[countable] an idea or opinion that someone thinks is true but for which they have no prooftheory that Detectives are working on a theory that he knew his murderer.COLLOCATIONSverbscome up with/develop a theory· These birds helped Darwin develop his theory of natural selection.test a theory· Researchers gave workers a questionnaire to test that theory.prove a theory· No evidence emerged to prove either theory.support a theory· Modern research strongly supports this theory.disprove a theory (also refute a theory formal) (=show that it is wrong)· Later experiments seemed to disprove the theory.discredit a theory (=make people stop believing in it)· These latest findings discredit his entire theory.ADJECTIVES/NOUN + theorya scientific theory· Scientific theories can be tested experimentally.an economic theory· His economic theory assumes that both labour and capital are perfectly mobile.a conspiracy theory (=a theory that an event was the result of secret plan made by two or more people)· A variety of conspiracy theories question the official account of President Kennedy’s assassination.a pet theory (=a personal theory that you strongly believe)· Each of them had his pet theory on what had caused the uprising.phrasesthe theory of evolution/relativity etc· According to the theory of relativity, nothing can travel faster than light.

Accepted Answer

jEPoK/1xFvkT+4I2iOf8EUC8Bc3c/d9iUVI2dp6CSHLIDR+RvZFQ3LBeuM/WgWTsARA8vYp+8kq/z7Ev8lYBt+vPJz/63CV7csApOhcNU4uwzNWlYTCHTpEUhGVWKitaQOmPHGhra38fGBCvS9aJPQ==             the·ory              ★        AWL                    /        ˈθɪəri                ;          NAmE                ˈθɪri                ;        ˈθiːəri                /                              noun                                                (                  plural          the·ories                )                    1      ★              [countable            ,       uncountable        ]                    a formal set of ideas that is intended to explain why sth happens or exists          学说；论；说                            ◆        According to the theory of relativity, nothing can travel faster than light.        根据相对论，任何东西都无法超越光速。                    ☞        collocationsat                                            scientific                                                  2      ★              [uncountable        ]                    the principles on which a particular subject is based          理论；原理；原则                            ◆        the theory and practice of language teaching        语言教学理论与实践                    3      ★              [countable        ]                    theory(that…)                    an opinion or idea that sb believes is true but that is not proved          （未证明的）意见；看法；推测                            ◆        I have this theory that most people prefer being at work to being at home.        依我看，多数人喜欢工作而不愿待在家里。                    IDIOM              ★        in ˈtheory                              used to say that a particular statement is supposed to be true but may in fact be wrong              理论上；按理说                                            ◆            In theory, these machines should last for ten years or more.            从理论上讲，这些机器应能用十年以上。                                ◆            That sounds fine in theory, but have you really thought it through?            这话听起来很有道理，但是你真正全面考虑过没有？                                      theory      theories                  the·ory              /        ˈθɪəri                ;          NAmE                ˈθɪri                ;        ˈθiːəri                /             theory[ˈθɪəri]CET4CET6TEM4考研n91949179466731478111394729307NOUN13911064462Spoken:124238232theories[6404]理论(90%)，原理(5%)，学说(4%)，意见(1%)n.理论；原理；学说；推测

word	theory
content	jEPoK/1xFvkT+4I2iOf8EUC8Bc3c/d9iUVI2dp6CSHLIDR+RvZFQ3LBeuM/WgWTsARA8vYp+8kq/z7Ev8lYBt+vPJz/63CV7csApOhcNU4uwzNWlYTCHTpEUhGVWKitaQOmPHGhra38fGBCvS9aJPQ==
Collins	theory ★★★★☆ /θɪ͟əri/ 1 [N-VAR 可变名词]理论；学说 A theory is a formal idea or set of ideas that is intended to explain something. [usu with supp] Marx produced a new theory about historical change based upon conflict between competing groups... 马克思创立了一种新理论，认为历史的演变是基于对立集团之间的冲突之上的。 Einstein formulated the Theory of Relativity in 1905. 爱因斯坦于 1905 年创立了相对论。 2 [N-COUNT 可数名词]观点；见解 If you have a theory about something, you have your own opinion about it which you cannot prove but which you think is true. There was a theory that he wanted to marry her... 有人认为他想娶她。 My theory about divorce is that it's not the split-up that damages children, it's how it is handled. 我对离婚的看法是，伤害孩子的不是婚姻的破裂，而是处理离婚的方式。 3 [N-UNCOUNT 不可数名词](实践科目、技能的)理论基础 The theory of a practical subject or skill is the set of rules and principles that form the basis of it. [usu with supp] He taught us music theory. 他教我们乐理。 ...graduates who are well-trained in both the theory and practice of statistics. 在统计学理论和实践两方面都训练有素的毕业生 4 [PHRASE 短语]从理论上说；照理说 You use in theory to say that although something is supposed to be true or to happen in the way stated, it may not in fact be true or happen in that way. [PHR with cl] A school dental service exists in theory, but in practice, there are few dentists to work in them. 照理说，学校也有牙医诊所，可实际上，里面的牙医寥寥无几。
Oxford	the·ory ★ AWL / ˈθɪəri ; NAmE ˈθɪri ; ˈθiːəri / noun ( plural the·ories ) 1 ★ [countable , uncountable ] a formal set of ideas that is intended to explain why sth happens or exists 学说；论；说 ◆ According to the theory of relativity, nothing can travel faster than light. 根据相对论，任何东西都无法超越光速。 ☞ collocationsat scientific 2 ★ [uncountable ] the principles on which a particular subject is based 理论；原理；原则 ◆ the theory and practice of language teaching 语言教学理论与实践 3 ★ [countable ] theory(that…) an opinion or idea that sb believes is true but that is not proved （未证明的）意见；看法；推测 ◆ I have this theory that most people prefer being at work to being at home. 依我看，多数人喜欢工作而不愿待在家里。 IDIOM ★ in ˈtheory used to say that a particular statement is supposed to be true but may in fact be wrong 理论上；按理说 ◆ In theory, these machines should last for ten years or more. 从理论上讲，这些机器应能用十年以上。 ◆ That sounds fine in theory, but have you really thought it through? 这话听起来很有道理，但是你真正全面考虑过没有？ theory theories the·ory / ˈθɪəri ; NAmE ˈθɪri ; ˈθiːəri /
LDC	theorytheo‧ry /ˈθɪəri $ ˈθiːəri/ ●●● S2 W1 AWL noun (plural theories) Word Origin Examples Thesaurus Collocations Phrases Word family 1[countable] an idea or set of ideas that is intended to explain something about life or the world, especially an idea that has not yet been proved to be true → theoreticaltheory about/on different theories about how the brain workstheory of Darwin’s theory of evolutiontheory that the theory that light is made up of waves2[uncountable] general principles and ideas about a subject: Freudian theory has had a great influence on psychology.political/economic/literary etc theory I’m taking a course on political theory.3in theory something that is true in theory is supposed to be true, but might not really be true or might not be what will really happen OPP in practice: In theory, everyone will have to pay the new tax.4[countable] an idea or opinion that someone thinks is true but for which they have no prooftheory that Detectives are working on a theory that he knew his murderer.COLLOCATIONSverbscome up with/develop a theory· These birds helped Darwin develop his theory of natural selection.test a theory· Researchers gave workers a questionnaire to test that theory.prove a theory· No evidence emerged to prove either theory.support a theory· Modern research strongly supports this theory.disprove a theory (also refute a theory formal) (=show that it is wrong)· Later experiments seemed to disprove the theory.discredit a theory (=make people stop believing in it)· These latest findings discredit his entire theory.ADJECTIVES/NOUN + theorya scientific theory· Scientific theories can be tested experimentally.an economic theory· His economic theory assumes that both labour and capital are perfectly mobile.a conspiracy theory (=a theory that an event was the result of secret plan made by two or more people)· A variety of conspiracy theories question the official account of President Kennedy’s assassination.a pet theory (=a personal theory that you strongly believe)· Each of them had his pet theory on what had caused the uprising.phrasesthe theory of evolution/relativity etc· According to the theory of relativity, nothing can travel faster than light.
WDF	theory [ˈθɪəri] CET4CET6TEM4考研 n919 49179 4667 3147 8111 3947 29307 NOUN1391 1064462 Spoken: 124238232 theories[6404] 理论(90%)，原理(5%)，学说(4%)，意见(1%) n.理论；原理；学说；推测

Theory True Idea Set Formal Intended Explain Opinion

theory

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