What's the difference between /ʊ/ as in 'pull' and /u/ as in 'boo'?

2012-12-04 4:33 pm
boo: /bu:/ (UK), /bu/ (US)
pull: /pul/ (UK), /pʊl/ (US)
Hence, there are three vowels which I consider the same. (I consider these three vowels all to be /u/ (UK) as in 'pull'. I have watched the videos teaching pronunciation on YouTube. But I can't distinguish these three vowels.
更新1:

And does /ʊ/ sound like /ə/ or /u/? I think it looks like /u/ so it would sound like /u/ rather than /ə/. But I heard the video pronounce it like /ə/ rather than /u/ and the video didn't say what it sounds like.

回答 (3)

2012-12-04 4:49 pm
✔ 最佳答案
I am not sure of your previous "boo: /bu:/ (UK), /bu/ (US)", but these two vowels are the only existing contrast.
/u/ and /ʊ/ are just different symbols for the same sound - at least, in whatever English I have heard so far.

The best way to achieve the so-called "long" /u:/ vowel is to strech your lips as if you were trying to catch the cherry your friend wants to stick in your mouth.

The other /u/ is closer to /o/ than in most other languages.
2012-12-05 12:44 am
/u:/ this is slightly longer than /u/
and a little higher than /ʊ/.

My pronunciation of pull is /pʊl/. I am a (Northern) British speaker.
2012-12-05 12:36 am
It's a small difference. In US pronunciation, the difference between the "u" sound in "boo" and "pull" is that for "boo", you push your lips out further. It's more of an "oooh" sound than an "uhhh" sound.


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