第二部分 英语知识运用（共两节，满分35分）
第一节：语法和词汇知识（共15小题；每小题1分，满分15分）
从A、B、C、D四个选项中，选出可以填入空白的最佳选项，并在答题卡上将该项涂黑。
21．_______ the temperature might drop, coal was prepared for warming.
A． Considering B．To consider C．Considered D．To be considered
22．The engineers made two big plans for the dam, _______ was never put into practice(投入实施).
A．one of them B．which C．one of which D．every one of that
