| 词组 | ago |
| 释义 | 1． 一般用在名词或副词后面，与过去时态连用: He got here ten minutes ago. The accident happened long ago. 2． 在有情态动词的句子中，可以用 ago，因为那是表示“推测”: He must have been in Paris long ago. 3． 在有分词、动名词、不定式的句子中，可以用 ago: Having read the book a few days ago，he is very familiar with the story. ( 分词) He talked about having met the pop star a couple of days ago. ( 动名词) He seems to have met her a few days ago. ( 动词不定式) 4． 表示“过去之过去 ( 即‘那个时候之前’)”不能用 ago，要用 before 或 previously: I remembered that I had met him five years before / previously. 5． 可以说: many lives ago three evenings ago two winters ago five generations ago How many generations ago did we have a common ancestor? |
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