也许和By the time 有关
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By the time she leaves the country, this letter ______ you. A will have been reached B will reach C will be reaching D will have reached
解题思路: 见下
解题过程:
选D。此题考查时态语态, 由于前面时间状语从句是by the time+句子引导,by the time 1)到…时候为止; 2)…当……的时候; 通常引导一个时间状语从句,表示“到……的时候为止”主句则表示在此时间之前某个事件已完成。 由于句子中是一般现在时态leaves, 所以主句时态是将来完成时, 再根据this letter和reach成主谓关系, 所以用主动语态, 排除A答案。但是如果by the time+句子, 句子中是过去时态, 那么主句中就是过去完成时态, 例如:
By the time l got to the station,the train had already gone。
如有疑问请留言!祝假期愉快, 开心每一天!
最终答案:略
解题过程:
选D。此题考查时态语态, 由于前面时间状语从句是by the time+句子引导,by the time 1)到…时候为止; 2)…当……的时候; 通常引导一个时间状语从句,表示“到……的时候为止”主句则表示在此时间之前某个事件已完成。 由于句子中是一般现在时态leaves, 所以主句时态是将来完成时, 再根据this letter和reach成主谓关系, 所以用主动语态, 排除A答案。但是如果by the time+句子, 句子中是过去时态, 那么主句中就是过去完成时态, 例如:
By the time l got to the station,the train had already gone。
如有疑问请留言!祝假期愉快, 开心每一天!
最终答案:略
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