简答题In English, the prominence of words with sentence stress is realized by lengthening the accented words only.简答题Imitation is the only and most effective way to learn the pronunciation and intonation of a foreign language well.简答题A phoneme is the smallest or minimal contrastive unit which may bring about a change of meaning in a given language.简答题Phonetics is the science of speech sounds. It studies how the speech sounds are produced, transmitted and perceived. It is language specific.简答题In communication, what decides which tone to use in a specific context is the sentence pattern.简答题The difference between the initial sounds of Chinese (怕) and （爸）is whether it is voiced.简答题When two phones are in complementary distribution, they are to be taken as allophones of the same phoneme.简答题In both Chinese and English, /h/ is a voiceless velar fricative consonant.简答题As the rhythm pattern differs, the prosodic features of the languages concerned differ as well.简答题Chinese and English differ only in the rhythm pattern.