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Hello! I'm John Russell.
大家好！我是约翰·拉塞尔。
Vowel sounds are very important in American English.
元音在美式英语中非常重要。
If your goal is to improve your pronunciation, you will need to develop a strong sense of the differences between vowel sounds.
如果你的目标是改善发音，你需要培养强烈的元音发音差异意识。
A nice place to start is to develop your ability to recognize vowel sounds.
你可以从培养识别元音音素的能力开始。
If you can't recognize the differences between sounds, then you will be less likely to produce the different sounds in your own speaking.
如果你无法识别音素之间的差异，那么你就不太可能发出不同的音素。
So, let's do a quiz.
我们来做一个小测验。
We will listen to a sentence and decide which vowel sound plays a more important part in the sentence.
我们将会听到一个句子，并决定哪个元音在句子中起着更重要的作用。
What are our two vowel sounds?
我们的两个元音是什么？
The first one is written like this in International Phonetic Alphabet (or IPA): /ou/.
第一个元音在国际音标中写成这样：/ou/（正确写法见视频）。
This vowel sound appears in words such as "boat."
这个元音出现在诸如“boat”之类的单词中。
The second vowel sound is written like this in IPA: /a/.
第二个元音在国际音标中写成这样：/a/（正确写法见视频）。
This vowel sound appears in words like "stop" or "hot."
这个元音出现在诸如“stop”或“hot”之类的单词中。
So, we have our two vowel sounds: /ou/ and /a/.
因此，我们有两个元音：/ou/和/a/。
You will now hear a sentence.
现在你将会听到一句话。
Which vowel sound is more common in the sentence?
哪个元音在句子中更常见？
I don't know if he owns his home.
我不知道他是否拥有自己的房子。
Let's listen again. I don't know if he owns his home.
让我们再听一遍。我不知道他是否拥有自己的房子。
The answer is this: /ou/ .
答案是：/ou/。
This vowel sound appears a few times in the sentence you heard.
这个元音在你听到的句子中出现了很多次。
You heard it in: "don't", "know", "owns", "home".
你在以下单词中听到了该元音：don't, know, owns, home。
So, if we analyze the sentence "I don't know if he owns his home.", we can say that the vowel sound /ou/ plays an important part.
所以，如果我们分析"I don't know if he owns his home."这句话，我们可以说元音/ou/起了重要的作用。
That's all for today! Keep up the good work!
今天就到这里吧！继续努力！
