since做连词引导句子的时态问题
2024-11-12 10:35:28 学考宝 作者：佚名
问题描述
一般since引导的状语从句都是过去式，然后主句是现在完成时或者现在完成进行时
如：
So much has changed in the sport since I was a teenager.
但有看到过是引导的句子是现在完成时的而非过去式
Since you're finished the work, you may leave anyime
1、想问since引导状语从句是现在完成时的话，主句一般可以有什么时态？
2、上句的So much做主语是属于什么情况？
感谢老师回答
老师答疑
刘老师：
1. So much has changed in the sport since I was a teenager.
2. Since you've finished the work, you may leave anyime
【答】第二句是you've，不是you're。
第一句：much（包括so much）除了是限定词（即：形容词）外，还可以是名词或代词，可以充当句子的主语和宾语。你的句子中，so much充当了主语。
They have done (so) much to advance the cause of peace in the world. 他们已经做了大量工作来促进世界和平事业。（作宾语）
Much has been written on the subject pro and con. 对那问题已有很多赞成和反对的文章。（作主语）
I have (so) much to do to pay my monthly bills. 我应付每月的开支不是容易的。（作宾语）
There is (so) much to eat at the party. 聚会上有很多吃的。（作主语）
第二句：Since you've finished the work，是原因状语从句，不是时间状语从句。
