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1、如有侵权，请联系网站删除，仅供学习与交流before用法归纳【精品文档】第 3 页现将before用法归纳如下：1表示“在之前”。说明两个时间或两个事件之间的先后关系。 1)They had got everything ready before I arrived在我到达之前他们已经把一切都准备好了。 2)She didnt understand me before I explained it toher在我向她解释之前，她不理解我的意思。 3)The train had left before I arrived at the station在我到达车站之前火车已开走了。 2表示“才 ”
2、，强调从句的谓语动词所表达的时间、距离很长或花费的 力量比较大。 1)The workers worked long hours for two weeks before everything returned to normal工人们长时间地工作了两周，一切才恢复正常。 2)The big fire lasted four hours before the firemen brought it under contro1大火持续了四个小时，消防队员才把它控制住。 3) We waited a long time before the train arrived我们等了很长时间火车才到。3表示
3、“还未来得及就”，强调主句谓语动词所表达的时间、距离很短或花费的精力比较小。 1)Before I could figure out what had happened，he forced me into the car我还不知道发生了什么，他就强行把我推进了汽车。 2)He jumped into the water before I could stop him我还没有来得及阻止他，他就跳进了水里。 3)Her father died before she was born她尚未出世父亲就去世了。 4表示“趁着”。 1)We can set off early before it gets
4、 hot我们可以趁着天不热早点出发。 2)Youd better write the phrases down before you forget them趁着你还没有忘记，赶紧把这些词组写下来。 3)Please put them away before they are missing趁着他们还没有丢，把它们收好吧。5表示“一就”、“刚刚就”。与hardlyscarcely连用 1)He had hardly gone to bed before(=when)the door bell rang他刚刚睡下， 门铃就响了。 2)She had scarcely got off the tra
5、in before(=when)her daughter ran towards her她刚一下车，女儿就跑了过来。 6表示“不知不觉多少时间已经过去了”。 1)He was so absorbed in his work that four hours had passed before he knew it他如此专注于工作，不知不觉四个小时就过去了。 2)Time passed quickly and three months went by before he knew it时间飞快地流逝，他没感觉到三个月已过去了。 7表示“宁可。宁愿”，相当于rather than。 1)Id die
6、 before I apologized to them我宁死也不向他们道歉。 2)1 would be poor before I got money in this way我宁愿穷也不愿用这种方式挣钱。 8before常用于句型“it wasbefore”“ 过了(多长时间)才 ”，“it will bebefore ” “要用(多长时间)才”。“it wasntbefore” “没过(多长时间)就”。“it wont bebefore”“用不了(多长时间)就会”。 1)It was long before he came to help me过了很久他才来帮我。 2)It washt long before the fire was put out不久火就给扑灭了。 3)It will be another five days before we finish this task还要再过五天我们才能完成任务。 4)It wont be a long time before someone comes to see you不久就会有人来看你。