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一个条件状语从句,一个原因状语从句

来源:学生作业帮 编辑:作业帮 分类:英语作业 时间:2024/05/23 19:50:46
一个条件状语从句,一个原因状语从句
请看这句话:
----What (would) you do if it rains tomorrow?
----(We'd)have to carry it on,since we've got everything ready.
第一句中为什么不用Will而用Would,不是说“主将从现”吗?难道是虚拟语气吗?如果是虚拟语气,请讲讲该怎么用?
第二句中的(We'd)是什么的缩写?We had?We would 还是We should?
这又是什么用法.
感激不尽!
第二句中的(We'd)是什么的缩写?We had?We would 还是We should?还是有其它的什么可能?
1.不是虚拟语气.如果是虚拟语气,其结构应为:
与现在事实相反的假设:
从句谓语:动词的过去式(be的过去式多用were)
主句谓语:would/ should/ could/ might+动词原型
eg.If I were you,I would go with him.
与过去事实相反的假设:
从句谓语:had +过去分词
主句谓语:should/ would/ could/ might+ have+过去分词
eg.If you had studied harder last term,you could have passed the exam.
与将来事实相反的假设:
从句谓语:动词的过去式(be的过去式多用were)或should /were to + 动词原型
主句谓语:would / could/ should/ might+动词原型
eg.If it rained tomorrow,we would stay at home.
因此,这句话不是虚拟语气.助动词/情态动词的过去式还有一种用法就是表示语气的婉转.
would:表示请求,建议,比will婉转,多用于第二人称.
在此处,应是这种用法.
2.不是had,因为,在助动词have/has/had后面的动词,不能用原型.但是,我不确定是应该用would还是should.Sorry!