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【导语】英语语法让很多学生都头疼，因为复杂难懂的句式和词组有时难以记忆。英语网为大家整理了英语语法大全，希望对同学们的英语语法学习有所帮助。更多内容尽在英语网。 1. ____ that caused him to serve dinner an hour later than usual. A. It was we being late B. It was our being late C. It was we were too late D. It was because we were late 【陷阱】此题容易误选D，认为强调的是原因状语从句 because we were late。 【分析】但实际上，此题的答案为B，强调的是句子主语 our being late，此题若还原成非强调句，即为： Our being late caused him to serve dinner an hour later than usual. 注意，强调句的一个显著特点是，若去掉强调结构 it is [was] that，句子仍然成立;换句话说，该结构中的 that 不能充当句子成分。 2. How was ______ they discovered the entrance to the underground palace? Totally by chance. A. it that B. he that C. it when D. he which 【陷阱】几个干扰项均可能误选。 【分析】答案选A，为强调句的特殊疑问句形式，其相应的陈述句形式为： It was totally by chance that they discovered the entrance to the underground palace. | 
