常见的有介词(短语)without. . . /but for. . . 等、分词短语、不定式短语及but, or, otherwise等表示转折的词。
①Without your help, I couldn’t have finished the work on
time. 如果没有你的帮助, 我就不能按时完成这项工作。(介词短语Without your help=If you had not helped me)
②Given more time, she would certainly have done much
better. 如果多给点时间, 她一定会做得好得多。
(分词短语Given more time=If she had been given more time)
③I was busy that day. Otherwise, I would have come to see you. 我那天很忙, 要不然我就去看你了。
(单个词Otherwise=If I had not been busy that day)
④I would have come to see you that day. Unfortunately, it was raining so hard.
我本来打算在那天来看你的, 不巧的是那天下大雨。
由下句可知, 我没有来看你, 用would have come表示对过去的假设。
19. 【解析】选D。考查虚拟语气。句意: 这些日子我真的很忙, 不然我就参加你昨晚的生日聚会了。聚会是昨晚的事情, 因此用would have come表示对过去的假设。should have come本来该来而没来, 含有责备的意味。
【加固训练】
John did not feel well yesterday; he would have come to see his classmates off.
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