句型8
…before…特殊用法（2）“过了多久才……”或“动作进行到什么程度才……”
[例句]
They walked about fifty miles to the west before they saw a village.
他们西行50英里才看到一个村庄。
The workers worked day and night about three days before everything returned to normal.
工人们连续工作3天才使一切恢复正常。
He almost knocked me down before he knew it.
他几乎撞到我了才意识到。
We had walked a long way before we found some water.
我们走了很长的路才找到一点水。
Five years went by before I knew it. 不知不觉，五年过去了。
>>点击查看高中英语语法总结专题，阅读更多相关文章！
-
高一英语语法：数词的用法详解
小编为大家总结的高一英语语法-数词的用法详解汇编资料，大家好好利用哈，希望对你有益。更多资料，请持续关注本网站。
- 高中英语语法速记口诀汇总
- 高中英语语法全解之介词：常用介词的区别
- 高考英语语法全掌握之代词：不定代词的用法
- 高中英语语法全掌握之动词：动词的时态