It was written by someone almost 100 years ago whose native language isn't English.

这是在近100年前的一个人写的,他的母语不是英语。

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And read a lot and listen a lot because obviously, not just in English-speaking countries,

大量阅读，大量地听，因为明显地，不能只是在母语是英语的国家，

语法和语调是关键 - SpeakingMax英语口语达人

So, if you're a native monolingual speaker of English you hear speech and each sound you hear is categorized as falling into one of those forty morphemes--sorry, phonemes.

如果你是英语母语的单语说话者,你听到一段演讲,你所听到的每个声音,都被归类为这四十个音位中的一个

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