高考英语必备句之before 句型
(1)before sb can/ could 某人还没来得及
例： Before I could get in a word ，he had measured me．
我还没来得及插话，他就给我量好了尺寸
(2)It will be +时间+ before + 还有多长时间
例： It will be 4 years before he graduates. 他还有四年时间变毕业了。
(3)had done some time before （才 ）
例 ： We had sailed four days and four nights before we saw land.
我们航行了四天四夜才见到陆地。
(4) had not done --- before --- 不到 就
例 ： We hadnt run a mile before he felt tired.
我们还没走到一英里路就觉得累了。
(5)It was not +一段时间 + before 不多久就
例 ： It wasnt two years before he left the country.
还没到两年他们离开了那国家。
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