The English pure vowels can be classified according to the height of the raised part of the tongue.
相似题目
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Sulfur has occasionally been found in the earth in an almost pure state.
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Classification of vowels is made up of the following EXCEPT（）。
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The vowel is produced without (or with little) restriction during its production and is always voiced.（）
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Vowels are formed mainly by the position of the tongue and, secondarily, by the shape of the lips and movement of the jaw.（）
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In English， long vowels are also tense vowels because when we pronounce a long vowel such as/i：/，the larynx is in a state of tension.
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The most powerful signal of stress is a change of pitch on the vowel.（）
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_ is NOT included in the factors used in analyzing vowels.
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（） is the production of pure water from sea water by evaporation and re-condensing.
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The three vowels mentioned in this article are all Finnish sounds.
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The number of the vowels are equal in English and Mongolian.
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The vowel sound in the word ‘hot’ is [ɑ].
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There is a _________ of scientific research from the pure to the applied field.
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Which group of the words has the same vowel sound?
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Generally, the light /l/comes before the vowel or diphthong in a syllable, but what about the dark /l/?_____________ the vowel or diphtong in a syllable. (After; Before)
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The body is your temple. Keep it pure and clean for the soul to ______.
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When Lao Zi said “上善若水”, he must be thinking about the clean and pure of water.
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Native speakers of English often use schwa vowels in stressed syllables.
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Vowel sounds are classified by a number of factors: the position of the tongue in the
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______ The amount of alcohol a person can drink before reaching the legal limit is 80 mg of pure alcohol.
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[＋sonorant] is only shared by all the vowels.（)
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Bilabial semi-vowel refers to the sound__________．
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The sudden vowel shift in the history of English helped to shape__ English（）
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Vowels which trigger [r]-insertion never trigger [j]-insertion or [w]-insertion. Each glide has its own domain, although the domains exempt short stressed vowels /e, ？, ？, ？, ？/, which never occur word-finally in English.
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One important feature that marks the difference between vowels and constants is that
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