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高考英语二轮复习总复习：紧抓高考考点 透视命题动向 第二部分 单项选择 考点 6 动词的时态和语态 命题角度3 含时间状语或时间状语从句的时态断定 1. (典型例题精选 )When the old man to walk back to his house, the sun itself behind the mountain. A. started; had already hidden B. had started; had already hidden C. had started; was hiding D. was starting; hid [考场错解] D [专家把脉] 如果误解为"was/were doing…when…”(即将……突然……)句型，就会错选D。从句意看hide的动作在start之前就已经开始了，应当用过去完成时来表示过去的过去。 [对症下药]A 2. (典型例题精选 )Scientists think that the continentswhere they today. A. aren't ; are B. aren' t ; were C. weren ' t ; are D. weren ' t ; were [考场错解] A [专家把脉] 单纯看时间状语好像是用现在时态，但语境告诉我们的是今天各个大陆板块的位置与过去的不同，因此，前者是一般过去时，后者才是一般现在时。 | 
