28.Which of the following statements about English morphology is correct?
(A) The superlative suffix -est is a derivational morpheme.
(B) The allomorphs of the plural as in cups/apples/dishes exemplify lexically-conditioned morphophonemic alternation.
(C) The word “unhappiness” has ambiguous internal structure.
(D) The word “reestablishments” contains 4 morphemes.

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統計： A(20), B(19), C(9), D(106), E(0) #3241358

詳解 (共 3 筆)

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“reestablishments” ...
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#6265190
(A) The superlative suffix -est is a derivational morpheme.>inflectional
(B) The allomorphs of the plural as in cups/apples/dishes exemplify lexically-conditioned morphophonemic alternation.>phonologically
(C) The word “unhappiness” has ambiguous internal structure.>not ambigious
It is parsed as un- + happy + -ness, where un- attaches to the root happy first to form unhappy, and then -ness forms the noun. 
(D) The word “reestablishments” contains 4 morphemes. Correct V 
    1. re- (prefix, "again").
    2. establish (root, "to set up").
    3. -ment (derivational suffix, "action or result").
    4. -s (inflectional suffix, plural marker).
 
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#6421819

(B) 改成 phonologically-conditioned 


plural -s allomorphs 會根據字尾的音變化
/s/: voiceless -cups
/z/: voiced -apples
/ɪz/: sibilant /s/, /z/, /ʃ/, /ʒ/, /tʃ/, /dʒ/ -dishes
ㅤㅤ
底下補充過去式 -ed allomorph

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