【正确答案】正确答案：Self-repair refers to the phenomenon that the speakers automatically modify their speeches. The mistakes in speeches are able to show how well a second language is mastered. So to a certain extent the ability to do the self-repair is an indication of the speakers" language proficiency.(2 points)From the self-correction instances, we find that self-correction phenomenon may reveal some features about the process of L2 speech production, the details are as follows: Firstly, as a kind of interlanguage, the L2 speech production is inevitably affected by the speaker"s native language. The error repair demonstrates that the speakers are using rules of L2 to correct his mistakes, thus improving the interlanguage output. Secondly, it should be noticed that there are many appropriateness repairs in the speech instances, which indicates that what the L2 speakers care about is more than conveying information;they also want to make their utterance more qualified and appropriate. Thirdly,the instances of different repairs mean L2 speakers are using communicative strategies. They abandon what they are not familiar with and turn to another topic,in an effort to maintain the communication.(3 points) Self-repair influences L2 oral production in a variety of mechanisms. The details are as follows: Firstly, self-repair makes the comprehensible output possible. Different from Krashen"s Input Hypothesis, Swain"s Output Hypothesis focuses on the importance of comprehensible output. It is believed that self-repair, as a kind of comprehensible output, plays an important role in second language acquisition. Secondly, self-repair may help the speakers to realize the structure of the target language. In the process of self-repair, the speakers are making an effort to reconstruct their interlanguage, and this may lead to an improvement in second language acquisition.(3 points)

【答案解析】解析：自我修正是说话人主动修正其话语错误的一种语言现象。话语错误能从某种程度上反映语言学习者对语言知识的掌握，而错误修正行为则反映出了语言学习者的总体语言水平。自我修正揭示了二语口语产出的一些特点：一、二语习得者的口语产出本质上是一种中介语，中介语不可避免会受到母语负迁移的影响。错误修正体现出二语习得者使用已有知识发现错误、改正错误的能力。二、值得注意的是，本题中发生了很多恰当修正的案例。这说明二语习得者在使用语言时不仅仅满足于传递信息，而且开始关注信息的质量和进行话语交谈的语境。三、不同修正表现二语使用者开始关注交际策略的使用，他们能够根据自己的语言水平和具体情况转换话题，从而在交际中处于有利地位。自我修正通过一系列机制影响口语的二语输出，主要表现在：一、自我修正促进了可理解性输出的产生。二、语言修补机制可以帮助学习者认识目标语语言的组织和形式，保证语言输出的准确性和交流的流畅性。正如Swain和Lapkin指出，二语习得者在修补其中介语以加强信息可理解性的同时，重新组建语言结构，用这种方式促进二语习得。