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Unit 7: Diphthongs. Ying Liu.

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Unit 7: Diphthongs

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In addition to the 'pure vowels' (ones where the tongue positioning is fairly static) shown above there is also the set of vowel diphthongs. These are effectively long vowels during which the tongue moves to produce a definite change of quality during the sound. In phonetic transcription we usually use a pair of linked symbols for each diphthong - one indicating the quality of the sound at the start of the vowel, and the other indicating its quality as it ends. Examples of diphthongs are found in words like 'boy', 'hear', 'may', 'my'.

/IE, eE, JE/

/eI, aI, RI/

/EJ, aJ/


Listen to the pronunciation of the English diphthongs:


/aI/ 从嘴大到嘴小。

pine,mine, ripe,fight,

Hierarchy(层级), hieroglyph(像形字)

my eyes/ why sigh/ high time/ by and by/wind up

Strike while the iron is hot.

Great minds think alike.

Let by-gones be by-gones.

  • naval orange, navy
  • 短语:may day/pay day/make way/ came again /take away/a great change/a railway station
  • 句子:no pains , no gains不劳而无获/call a spade a spade 直言不讳
  • -Why do parents know best?

-Because they made the same mistakes before!

  • soy sauce/The boy destroyed the toy. / He avoided making the choice /they were annoyed by the nose of the buoys.
  • What noise annoys an oyster?The noise that annoys an oysteris a noise that knows no oyster.
  • A sure cure/ a pure jewel/ fewer and fewer/ poor but pure/furious and curious
  • They toured the moor in February.
  • gourd, sewer, fuel,
  • town, out, shroud, crown, growl,

Soul, moan, ice cream cone,woe (悲伤).

句子:oh , don’t go home alone./ Little strokes fell great oaks(滴水穿石)./ As you sow you shall mow(种瓜得瓜,种豆得豆)./A rolling stone gathers no moss(滚石不生苔). Riddles:

What can you catch but not throw?(A cold)

What has holes but holds water?(A sponge)

diphthong tongue twisters
Diphthong tongue twisters
  • As he gobbled the cakes on his plate,the greedy ape said as he ate,the greener green grapes are,the keener keen apes areto gobble green grape cakes,they're great!
  • from Dr. Seuss's O Say Can You Say?
  • A tree toad loved a she-toadWho lived up in a tree.He was a two-toed tree toadBut a three-toed toad was she.The two-toed tree toad tried to winThe three-toed she-toad's heart,For the two-toed tree toad loved the groundThat the three-toed tree toad trod.But the two-toed tree toad tried in vain.He couldn't please her whim.From her tree toad bowerWith her three-toed powerThe she-toad vetoed him.
tongue twister for u woodchuck
tongue twister for /u/ woodchuck(美洲旱獭)
  • How much wood would a woodchuck chuckIf a woodchuck could chuck wood?He would chuck, he would, as much as he could,And chuck as much as a woodchuck wouldIf a woodchuck could chuck wood
pure vowels tongue twister
Pure vowels tongue twister:
  • Fly and a Flea
  • A fly and a flea in a flueWere imprisoned, so what could they do?"Let us fly," said the flea"Let us flee,"said the flySo they flew through a flaw in the flue.
  • Ex. : Unit 6,7.
  • Imitate passage of unit 7.