美式英语正音训练第66期:练习4(11)(在线收听

   Exercise 4-11 :

  Voiced and Unvoiced Sounds with T
  This exercise is for the practice of the difference between words that end in either a vowel or a voiced consonant,
  which means that the vowel is lengthened or doubled.
  Therefore, these words are on a much larger, longer stairstep.
  Words that end in an unvoiced consonant are on a smaller, shorter stairstep.
  This occurs whether the vowel in question is tense or lax.
  ha! hod hot
  har hard heart
  hall hailed halt
  her heard hurt
  hole hold holt
  hoe hoed
  caw cod cot/caught
  car card cart
  call called
  cur curd curt
  coal cold colt
  co- code coat
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