凡是由lest(以免;免得),in ca(以防)和 for fear that(生怕,唯恐)引导的目的状语从句中,用“should+动词原形 其谓语部分should可以省略。例如: Keep quiet in ca you(should)interrupt himwhen he is busy.要保持安静, 以防打扰他。 She is now studying for fear that
凡是由lest(以免;免得),in ca(以防)和 for fear that(生怕,唯恐)引导的目的状语从句中,用“should+动词原形 其谓语部分should可以省略。例如: Keep quiet in ca you(should)interrupt himwhen he is busy.要保持安静, 以防打扰他。 She is now studying for fear that