语法与词汇 His invasion of Russia is no more than a prelude to an attempted invasion of the British Isles.无

【正确答案】Prelude means an action or event that happens before another more important one and forms an introduction to it.

【答案解析】句意：入侵俄国的行动只不过是他蓄谋已久的对英伦三岛的入侵的序幕而已。prelude指“序幕，序曲”。