马上就高考了,急,Doctors in Washington area said it might have been

马上就高考了,急,
Doctors in Washington area said it might have been prevented ________ the dental care he needed.
为什么要用 had he received .
请帮我具体分析哈,
avlin 1年前 已收到1个回答 举报

一丹弟弟 幼苗

共回答了13个问题采纳率:84.6% 举报

这是虚拟语气的倒装,状语从句正常语序是 If he had received the dental care (he needed定语从句), it might have been prevented. 当从句中有should, were , 助动词had ,可以提前省略if ,倒装. 本句是与过去事实相反的虚拟语气形式.

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avlin 举报

那么it might have been 中的it 指代什么呢?谢谢

举报 一丹弟弟

这句话一定有上文的, 根据本句句意,it 在上文应该是牙科病, 如果他得到了所需要的牙齿保健, It 也许就被避免了。
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