本文跟踪研究了语块运用在学习者中介语发展不同阶段口语输出中的特点。对受试在大二至大三期间3次口语语料中使用语块的个数、频度、多样性、长度及各类语块的个数等方面的变化特点进行描述和解释。结果显示：1）受试口语输出能力并非如预期那样逐年显著提高；2）语块运用方面：多样性和平均长在3个阶段无显著差异，语块个数和频度，大二末、大三末明显高于大二初，但大三末与大二末无显著差异；3）不同类别语块的使用显现出不同的变化特点。%This study provides a glimpse of the features in the use of chunks in 3 different phases in the development of L2 learners＇ spoken output. Descriptions and explanations of such features are offered to see how and why the subjects differ in the use of chunks in these phases in Grade 2 and 3 in the university, including the number of chunks used, frequency, variety, length and different types of chunks. The results show 1 ） the subjects＇ spoken output does not show obvious improvement year by year as expected ; 2 ） variety and length of chunks show no significant differences ; the number and frequency of chunks have greatly increased in Phase 2 and Phase 3, but no significant differences are seen between Phase 2 and Phase 3 ; 3 ） different features are found in the use of different types of chunks.
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