if的3种假设..造句3个.. 以及 would 在什么情况下后面要+be

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wangjialin 网友

该名网友总共回答了25个问题，此问答他的回答如下：采纳率：96%

一、概念 [Subjunctive Mood] 中文译作"虚拟语气".它是一种动词形式,表示说话人的某种假设、愿望、怀疑、猜测、建议等含义.二、语法结构 1.if结构（非真实条件句——表示的是假设的或实际可能性不大的情况） 与..事实相反 If从句 主句 过去Had done Would* have done 现在Were/did Would* do 将来Should do/were/were to do Would* do 例句：If there hadn’t been much rain in spring,we would have had a good harvest now.[过去] If he smoked less,his cough might be well soon.[现在] If the lecturer should be late,you would have to make a speech first.[将来] 备注：（1）上表中’*’,would都可转换为should、could、might.（2) 如果为时间错综句的话,左右两栏可互相搭配,排列组合.例句：He would still be alive today if he hadn’t taken that drug.[与现在事实相反] [与过去事实相反] (3) if可转换为其他形式 例句：Without your advice,our meeting wouldn’t have been so successfully.[过去] （=>可转换为：If there hadn’t been your advice,we …） Your notes are almost illegible (难以辨认的).Notes typed out would be a lot easier to read.[将来] (=> 可转换为：If the notes had been typed out,it would be a lot easier to read.) I should have gone to see Dr.Smith and he might have cured me of the disease.[过去] (=> 可转换为：If he have gone to see Dr.Smith,he ..)

1年前他留下的回答

3

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