这两个句型是If it weren’t for…和If it hadn’t been for…,这是两个很常用的虚拟语气句型,也经常受到命题人的青睐,其意为“若不是(有)”“要不是有”。如:
If it weren’t for water, no plant could grow. 要是没有水植物就无法生长。
You wouldn’t be anywhere if it weren’t for Ruth. 若不是有鲁思你不会有任何成就。
If it hadn’t been for the doctor, he would have died. 要不是医生救了他,他就会死了。
If it hadn’t been for Mary, I might not have understood. 要不是有玛丽,我可能还不理解。
这两个句型有时可用but for, without等替换。如:
要不是有你帮忙,我们是不会成功的。
If it hadn’t been for your assistance we wouldn’t have succeeded.
=But for your assistance we wouldn’t have succeeded.
=Without your assistance we wouldn’t have succeeded.
原则上说,if it weren’t [wasn’t] for 用于谈论现在的情况,而if it hadn’t been for 用于谈论过去的情况。但实际上if it weren’t [wasn’t] for有时也可用于谈论过去的情况:
If it weren’t for their help, we couldn’t have got over the difficulties. 要不是他们帮助,这些困难我们是克服不了的。
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