百度作业网before用法
来源：学生作业帮 编辑：百度作业网作业帮 分类：英语作业 时间：2024/07/05 22:58:24
before用法
1.作介词：如：I will be back before 7.我七点前回来.
2.作连词：如：I had never seen snow before I came to the north.我来北方之前从未见过雪.
3.作副词：如：Have you ever been to Japan before?你以前去过日本吗?
4.用在习语中：look before and after 瞻前顾后；before all things 首先；before long 不久
5.用在句型中：It won't be long before...不久就...
2.作连词：如：I had never seen snow before I came to the north.我来北方之前从未见过雪.
3.作副词：如：Have you ever been to Japan before?你以前去过日本吗?
4.用在习语中：look before and after 瞻前顾后；before all things 首先；before long 不久
5.用在句型中：It won't be long before...不久就...