这个句子为何不用过去完成时?The anti-virus agent was not known until a doctor found it by chance.我觉得应该是The anti-virus agent was not known until a doctor had found it by chance.因为我觉得“医生发现”这个动作在
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![这个句子为何不用过去完成时?The anti-virus agent was not known until a doctor found it by chance.我觉得应该是The anti-virus agent was not known until a doctor had found it by chance.因为我觉得“医生发现”这个动作在](/uploads/image/z/11872436-68-6.jpg?t=%E8%BF%99%E4%B8%AA%E5%8F%A5%E5%AD%90%E4%B8%BA%E4%BD%95%E4%B8%8D%E7%94%A8%E8%BF%87%E5%8E%BB%E5%AE%8C%E6%88%90%E6%97%B6%3FThe+anti-virus+agent+was+not+known+until+a+doctor+found+it+by+chance.%E6%88%91%E8%A7%89%E5%BE%97%E5%BA%94%E8%AF%A5%E6%98%AFThe+anti-virus+agent+was+not+known+until+a+doctor+had+found+it+by+chance.%E5%9B%A0%E4%B8%BA%E6%88%91%E8%A7%89%E5%BE%97%E2%80%9C%E5%8C%BB%E7%94%9F%E5%8F%91%E7%8E%B0%E2%80%9D%E8%BF%99%E4%B8%AA%E5%8A%A8%E4%BD%9C%E5%9C%A8)
这个句子为何不用过去完成时?The anti-virus agent was not known until a doctor found it by chance.我觉得应该是The anti-virus agent was not known until a doctor had found it by chance.因为我觉得“医生发现”这个动作在
这个句子为何不用过去完成时?
The anti-virus agent was not known until a doctor found it by chance.我觉得应该是The anti-virus agent was not known until a doctor had found it by chance.因为我觉得“医生发现”这个动作在“病毒未知”这个动作之前啊,则就是过去的过去了啊……所以应该用过去完成时才对嘛……请教高手们一下,感激不尽!
这个句子为何不用过去完成时?The anti-virus agent was not known until a doctor found it by chance.我觉得应该是The anti-virus agent was not known until a doctor had found it by chance.因为我觉得“医生发现”这个动作在
你脑海想得都是语法吧,哈
其实,这句话,是故事性的一般叙述,一般过去式就行了.
多读读外国小说,培养下语感;阅读的时候,别忘了注意下里面的语法时态.
你好,有时别死扣语法。
比如说这句话就没有人用你的说法。
建议你经常看看外语读物,增强语感。
这应该是not until句型。比如要说“我直到完成工作才吃饭”一般这样讲:“I didn't have dinner until finished the work."通常用一般过去时而不用过去完成时。对不?
如果"医生发现"在"病毒未知"之前那岂不矛盾啊,试想,医生都发现了病毒难道还是未知吗?而且,not untill的用法就决定了它的前后一般都用过去时