Unless she had had an alarm clock, she would havemissed the train.（事实：她没有闹钟）中两个had是什么意思?

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Unless she had had an alarm clock, she would havemissed the train.（事实：她没有闹钟）中两个had是什么意思?
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Unless she had had an alarm clock, she would havemissed the train.（事实：她没有闹钟）中两个had是什么意思?
Unless she had had an alarm clock, she would havemissed the train.（事实：她没有闹钟）
中两个had是什么意思?

Unless she had had an alarm clock, she would havemissed the train.（事实：她没有闹钟）中两个had是什么意思?
虚拟语气结构对过去的虚拟：had +动词过去分词
所以第一个had是助动词第二个是过去分词

had had:第一个had是过去完成时的助动词,第二个had是have的过去分词.它们一起构成过去完成时.

条件句中用过去完成时,是对过去情况的虚拟语气,表示与过去事实相反的假设.

Unless she had had an alarm clock, she would have missed the train.
=If she had not ...

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had had:第一个had是过去完成时的助动词,第二个had是have的过去分词.它们一起构成过去完成时.

条件句中用过去完成时,是对过去情况的虚拟语气,表示与过去事实相反的假设.

Unless she had had an alarm clock, she would have missed the train.
=If she had not had an alarm clock, she would have missed the train.

句意:如果她没有闹钟,她就已经错过了那列火车.
事实是:她有闹钟,所以她没有错过火车.

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she had a sunny Unless she had had an alarm clock, she would havemissed the train.（事实：她没有闹钟）中两个had是什么意思? 关于英语 she had had a very hard timeshe had had a very hard time 为什么用两个 had .. Betty c____ to work after she had had a baby she had a little housework after lunch She had a （please） day yesterday She had had a good cry怎么had会连续出现?这个句子的结构是什么? do you know where ——?A.she had beenB.had she been C.had she gone D.she had gone 为什么选A不选B呢? She had a nice face,____?A.hadn't she B.did she C.had she D.didn't she She had a toothache=she had___ ___ ____ Though she was t_____,she had a very loud voice. she had fish and she had an english where had she been? She had trouble making___sentences. Only then___how much damage had been caused A:did she realize B:had she realized She had fewer problems,()she?A.did.B.didn't.C.had.D.hadn't She had been a good mother to four ,but she had survived them all 意思 谢