介绍:
英语中的很多常用介词、代词、连词、助动词、冠词的发音都有分weak and strong forms
在国内学英语时，我们学到的音标是这样的：
as /æz/； must /mʌst/；have /hæv/；was /wɒz/ ； us /ʌs/
The [beautiful] [mountain] [appeared] [transfixed] in the [distance]. (8 words)
He can [come] on [Sundays[ as long as he doesn&`&t have to [do] any [homework] in the [evening]. (18 words)
介词、代词、连词、助动词、冠词都属于function words，在句中一般都不会被做重读处理，因为他们都是跟其他有意义的content words （名词、动词、形容词、副词）连在一起使用的，我们应该做的是重读那些content words。
1. I must /məs/ go now.
2. I really must /mʌst/stop smoking.
1. It was /wəz/ raining.
2. Yes, it was /wɒz/. 。
1. Where have /əv/ you been?
2. I should have /əv/ done that.
3. What did you have /hæv/for breakfast?
1. I am looking at /ət/ you.
2. What are you looking at /æt/?
Oxford Learner’s Dictionaries（http://www.oxfordlearnersdictionaries.com/ ）
BrE = British English;
NAmE = North American English.
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