在任務性教學的研究裡，構思時間大都有助於口語表達流暢度，但構思時間對口語表達複雜度與正確度的影響，在研究中則尚無定論。本研究旨在探討引導式構思(guided planning)與配對構思(paired planning)對學童英語口語表達的影響，期能對以上爭論做出貢獻。此研究以90位新竹市國小高年級學生為研究對象，並依照構思情境的不同將學生分成三組進行口述故事任務: (1) 無引導構思 (2) 引導式構思 (3) 引導式配對構思。本研究主要結論如下: (1) 就流暢度與複雜度而言，引導式構思與配對構思對學生在口語表達無顯著影響。值得注意的是，配對構思組的學生，會使用較更高程度的字彙來說故事；(2) 就文法正確度而言，引導式構思組學生的表現顯著優於無引導式構思組與引導式配對構思組。而配對構思組的學生雖然沒有使用文法較正確的語言來說故事，卻對配對構思在文法正確度方面的影響持肯定態度。本研究最後針對不同構思情境在口語教學上的應用提供建議，做為教育者參考。 / A general finding of task planning studies was that planning time significantly facilitates fluency in oral production. When it comes to complexity and accuracy, however, the effects of planning time were less certain. This study aims to contribute to the contradictory results by considering how guided planning and paired planning may impact upon the fluency, complexity and accuracy in learners’ oral production. Subjects were three groups of EFL beginners in Taiwan; they performed oral narrative tasks. Statistical results revealed that these two implementation variables (i.e. guided planning and paired planning) did not aid learners to narrate a story with more fluent and complex language. One thing to be noted here is that paired planners used remarkably greater number of higher level words to tell a story. In terms of accuracy, guided planning led participants to perform tasks with more accurate utterances, while paired planning had no evident effects on speech accuracy. Interestingly, paired planners held a positive attitude towards the valuable role of paired planning on accuracy. This study yielded illuminative information for teachers to boost students’ oral performance by manipulating various task conditions.