大师作文网关于英语的这两种假设的句式
来源：学生作业帮 编辑：大师作文网作业帮 分类：英语作业 时间：2024/11/16 02:03:07
关于英语的这两种假设的句式
1.If+past simple,would+base form
举例：if that camera weren't so expensive,I would buy it.
2.If+past perfect,would have+past participle
举例：if Jack had come,we would have eaten earlier
请问这两种分别是在那种情况下用的,我这边书上说,第一种是有一点可能性会发生的情况下,第二种说是完全不可能发生的情况下...这两个概念本身就有点暧昧啊
1.If+past simple,would+base form
举例：if that camera weren't so expensive,I would buy it.
2.If+past perfect,would have+past participle
举例：if Jack had come,we would have eaten earlier
请问这两种分别是在那种情况下用的,我这边书上说,第一种是有一点可能性会发生的情况下,第二种说是完全不可能发生的情况下...这两个概念本身就有点暧昧啊
我觉得第二种是对过去已经发生事情的假设吧（所以才说完全不可能发生）.
比如你例子里面,if that camera weren't so expensive,I would buy it.这句话在时间上没有什么限制.就是可以理解为如果它不贵,我就买.if Jack had come,we would have eaten earlier.这句说明JACK已经没有来了,我们已经晚吃饭了.
比如你例子里面,if that camera weren't so expensive,I would buy it.这句话在时间上没有什么限制.就是可以理解为如果它不贵,我就买.if Jack had come,we would have eaten earlier.这句说明JACK已经没有来了,我们已经晚吃饭了.