摘要：(五)用“be+动词不定式 或用“be about to +动词原形 的结构表示. 如: 1)He is to visit Japan next year. 明年他将访问日本. 2)They’re about to leave. 他们就要走了. 归纳:be going to, be to do和be about to to be going to 表示打算或计划做某事或根据某种迹象判断将要发生的事. be to do表示预先安排好的计划或约定 be about to 表示即将发生的动作 意为 “be about to do sth.准备, 将要, 正打算 , 不与具体的表将来时间的副词或副词性短语连用.但可以与as或when引导的时间状语连用. 考点例题: 1)In a room above the store, where a party , some workers were busily setting the table. A. was to be held B. has been held C. will be held D. is being held 2)I was just about road a ship came to us. A. traveling on, while B. to travel on, while C. traveling by, when D. to travel by, when

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