Name: 不要陷入這些雙元音和元音的誤區 | 發音彙編 | Rachel's English (DON'T Fall For These Diphthongs and Vowel Mistakes | Pronunciation Compilation | Rachel’s English)
Uploaded: 2021-06-15T18:35:19.000Z
Duration: 1 h 29 min 15 s
Description: 【看影片學英語】數萬部 YouTube 影片，搭配英漢字典即點即查，輕鬆掌握單字發音與用法，長久累積看電影不必再看字幕。

Today, we're putting together every video we have that focuses on the vowel and diphthong

You'll see photos, up-close slow-motion words, valuable comparisons.

We're going to talk a lot about word stress too because that really affects vowel and

You're going to learn everything you need to know about these American English sounds.

We'll start with the vowel AH like in father and UH like in butter and we'll see a comparison.

The tongue tip lightly touches behind the bottom front teeth, and the back part of the

Because the tongue presses down in the back, you can see further into the dark space in

Let's see that by watching this vowel up close and in slow motion.

The lips are relaxed, and the tongue is lowered in the back.

The jaw drops, and the tongue presses down in the back.

When this vowel is in a stressed syllable, the voice will go up and come down in pitch,

When it's in an unstressed syllable, it won't be as long, and it won't have the

For example, in the word 'blockade', ah, ah, blockade.

The mouth position looks the same: jaw drop, relaxed lips, and tongue pressed slightly

But because the pitch is flatter and the syllable is quicker, it sounds unstressed.

You can see, uh, the jaw drops but the rest of the mouth remains very neutral, uh.  

The tongue is relaxed: the back presses down just a little bit, and the tip is forward.

Let's look at this sound up close and in slow motion.

A very relaxed jaw drop with relaxed lips.

The tongue presses down just a bit in the back.

Again, everything looks nice and relaxed.

In a stressed syllable, the vowel curves up then down.

In an unstressed syllable, it's lower and flatter in pitch, and a little quieter and

The vowel is unstressed in the word 'undo', uh.

Let's take a look at this word up close and in slow motion.

Tongue presses down slightly in the back.

Compare the stressed vowel above with the unstressed vowel below.

Notice the jaw may drop a bit more for a stressed syllable.

Unstressed vowels and diphthongs are shorter, so there isn't as much time to make the

The UH vowel, stressed: stuff, UH The UH vowel, unstressed: undo, uh

Here we have the AH and uh vowels in profile.

You can see for the Ah vowel the jaw might drop a little bit more.

Also the tongue position has a little bit of tension in it.

That's because the tongue is flattened a little bit.

In the uh vowel the tongue is completely relaxed.

Now you'll see the mouth from the front alternating between the AH and the uh sounds.

And see if you can notice the subtle change in tongue position as well.

Now we'll do two other vowel sounds that I've noticed can be tricky for my students.

I'm talking about the EH as in bed vowel and the AA vowel like in bat.

We'll go over each sound in-depth and have a comparison.

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不要陷入這些雙元音和元音的誤區 | 發音彙編 | Rachel's English (DON'T Fall For These Diphthongs and Vowel Mistakes | Pronunciation Compilation | Rachel’s English)

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