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关于英语虚拟语气的几个单选题,知道正确答案,但我不知道为什么.

来源:学生作业帮 编辑:作业帮 分类:英语作业 时间:2024/05/12 18:28:46
关于英语虚拟语气的几个单选题,知道正确答案,但我不知道为什么.
1.The young driver looked over the engine carefully lest it_____on the way.should go wrong]
2.Look at the terrible situation I am in!If only____your advice.had followed]
3.Not until the game had begun____at the sports ground.did he arrive]
4.Hardly____the helicopter____when the waiting crowed ran toward it.had...landed]
5.Pick me at 8 o'clock.I____my bath by then.will have had]
1,lest引导的从句中大部分为目的状语从句,需用虚拟语气,表示“以防,以免”等意思,其谓语动词多由should +动词原形构成,should也可省略.
2,虚拟语气,if only译为“但愿”,对过去事情的虚拟.
3,not.until用法.not until放在句首,句子要倒装.
4,也不是虚拟语气,句型hardly...when...一...就.时态是过去完成,hardly在句首,句子就倒装了.
5,将来完成时,“到那是就洗完澡了”.强调将来能做完的事情.