In a communicative approach to language teaching, students are presented with “authentic” language, which is thought to allow them to produce it in a nativelike way. The current study explores whether the lexical bundles in communicative Japanese junior high school textbooks are representative of conversational English. To do this, we use a corpus-based approach that compares the most frequent lexical bundles in the textbooks to those in an English reference corpus. The study finds that although lexical bundles are very frequent in the textbooks, and conform relatively well to English patterns at shorter lengths (3-word lexical bundles), they deviate considerably at longer ones (4-, 5- and 6-words). This has important implications for the communicative utility of the language in the textbooks.

中文翻译：

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“你在说什么？”

在语言教学的交际方法中，向学生呈现“真实”的语言，这被认为可以让他们以类似母语的方式产生语言。目前的研究探讨了交际日语初中教科书中的词汇束是否代表了会话英语。为此，我们使用基于语料库的方法将教科书中最常见的词汇束与英语参考语料库中的词汇束进行比较。研究发现，尽管词汇束在教科书中非常频繁，并且在较短的长度（3 个词的词组）中与英语模式的一致性相对较好，但在较长的词组（4 个、5 个和 6 个词）中差异很大。这对课本中语言的交际效用具有重要意义。