Question

13．他无法证明他不在案发现场．He can't prove he was not at the scene of the crime．．

Answer 1

分析 He can't prove he was not at the scene of the crime．

解答 答案：He can't prove he was not at the scene of the crime．这里需要用含有宾语从句的主从复合句来表达，主句是他无法证明，说的是客观事实用一般现在时，主语he，不能can't，情态动词后加动词原形prove证明，后加上that引导的宾语从句，that可以省略，主句时态是一般现在时，从句时态不受限制，从句是他不在案发现场，是说过去，故用一般过去时，主语he，不再was not at，at接小地点，案发现场the scene of the crime，故答案是He can't prove he was not at the scene of the crime．

点评 本题旨在考查宾语从句这一语法，做这类题时，要从三方面考虑：一、选准连接词 二、连接词后紧跟从句的主语 三、若主句是过去时，从句要改为相对应的过去时．