It also dismissed as myth a widely held expectation that tar sands in Canada could fill the supply gap.

报告还驳斥了此前普遍抱有的神话般的期望，即加拿大的含油砂将能填补石油供应的缺口。

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However, during the procedure of teaching practice in senior high school, there is a great gap between the expectation from the modern teaching technique and the current situation.

然而，在现阶段的高中数学教育教学实践中，教师应用现代教育技术的期望与实际情况还存在着很大的差距。

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The expectation gap was even greater in training, where the assigned value was close to 4.5, while the actual value was slightly above 3.

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