采用探测再认范式和事件分割范式探讨了情境模型中时间转换与事件转换相分离的情况下，时间转换对记叙文情境模型更新的影响。实验1用探测再认范式探讨时间转换与事件转换相分离条件下，时间转换对情境模型更新的影响。实验2采用事件分割范式探讨时间转换对事件单元划分的影响，进一步检验时间转换对情境模型更新的影响。结果表明，时间转换不是情境模型更新的充分条件，当时间转换与事件转换相分离时，时间转换不引起情境模型的更新；事件单元是建构情境模型的核心单元，时间转换只有在标识事件转换的情况下，才能引发读者更新情境模型。

In this study, two experiments were designed to explore the influence of temporal shift on event segmentation and situation model when event shift is disaccord with temporal shift with event segmentation paradigm and probe-recognize paradigm. In the first experiment, 36 university students were asked to read eight narrative stories. In the second experiment, 33 University students were asked to read eight narrative stories. The independent variables were the same as those in the first experiment. The dependent variable was the segment rate of the different points. According to the results from the two experiments, we find that in the temporal shift consistent with event shift condition, temporal shift causes the update of situation model; whereas in the temporal shift inconsistent with event shift condition, temporal shift don’t causes the update of situation model. To sum up, event is the core of situation model and temporal shift causes the update of situation unless it indexes event shift.