Questions on common pronunciation mistakes

[yanx]

Hi,


The following link I found is about the 9 most common pronunciation mistakes, but I found a lot poeple speak this way, even some English native speakers also do so, for example, when speaking fast they say "Fur" instead of "for", "R" for "Our", "jist" for "just"...

http://www.greatvoice.com/voice-over-articles/how-to-avoid-the-9-most-common-pronunciation-mistakes.php

Especially the second and the third one , I don't quite understand, as follows:

2. “T” AND “D” ARE NOT INTERCHANGEABLE

Do you say “qualiDY” instead of “qualiTy”? Or “diTn’t” for “diDn’t”?

3. THE MURDEROUS SWITCHEROO

Substituting AXE for ASK. Think about it: “I will AXE him if he wants to come.” With an invitation like that, he will probably decline.


My question is that the first three groups of words I listed at the very beginning of the post are easy to understand, but aren't they quite common in spoken English (fur, r, and jist), is their pronunciation wrong? Why?

For the highlighted part, that is the second and third one, I can't understand how can people mispronounce the words like quality and ask, moreover, qualidy and axe are not correct, either, isn't axe a kind of tool?

Our teacher once said in class that the second d in didn't should pronounce as the t sound in spoken English , I don't get it. I can't and don't have the awareness to pronounce that way. Can you also explain?

Thank you very much!

[5jj]

Susan Berkley is making money out of training people to speak in the way that she considers to be correct. I have no problem with this, and if you want to make money doing voice-overs in America, follow her advice. However, what she considers to be a mistake is not necessarily what most of us do,

Do you say “qualiDY” instead of “qualiTy”?

In some AmE and CanE dialects, /t/ is voiced in certain positions, sounding very much like /d/. This is not 'uneducated'

[SoothingDave]

Likewise, not all dialects make a distinction between the letter "r", the word "are" and the word "our." (And sometimes even "hour.")

Unless I am adding emphasis, I don't say "our" any different from "are."

[BobK]

Susan Berkley is making money out of training people to speak in the way that she considers to be correct. I have no problem with this, and if you want to make money doing voice-overs in America, follow her advice. However, what she considers to be a mistake is not necessarily what most of us do,In some AmE and CanE dialects, /t/ is voiced in certain positions, sounding very much like /d/. This is not 'uneducated'

That's a very measured/sane reponse Personally, I find this sort of site depressing

b

[5jj]

That's a very measured/sane reponse.

I think I'll frame that. It's a rare happening.

[yanx]

That's a very measured/sane reponse Personally, I find this sort of site depressing

b

Thank you. Although I didn't see the article of that website on a high plane of criticism or whatever as you and others do, I am still quite glad that you have the same feeling.