In this study, the writer has conducted a literature review of task-based language teaching in reading comprehension under the framework of the sociocultural theory. The core concepts of sociocultural theory: the zone of proximal development (ZPD) theory, and the scaffolding theory are introduced to justify task-based approach in the reading instruction. Then, the task design are discussed with the Ellis`s task design criteria and reading strategies to show that tasks as the media can be viewed as scaffoldings to promote learners` ZPD.
Keywords: Reading Comprehension, Reading strategies, Sociocultural Theory., Task-Based Language Teaching