The pattern of questioning& discussion in classroom instruction is divided specifically into four stages: approaching stage, researching stage, periodical summarizing stage and improving stage.

课堂教学问题探讨模式具体分为四个阶段：进入问题阶段、问题研究阶段、问题小结阶段和问题提升阶段。

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At this stage, Ms Lamont is simply questioning the existing orthodoxy.

BBC: Planning for the future

At one stage his barrister, Brett Lockhart QC, interrupted the questioning to claim the hearing was moving away from its purpose.

BBC: Sean Quinn case: Ukrainians go before High Court