if的3种假设..造句3个.. 以及 would 在什么情况下后面要+be

来源：学生作业帮编辑：作业帮分类：英语作业时间：2024/11/08 19:59:00

if的3种假设..
造句3个.. 以及 would 在什么情况下后面要+be

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 ..)

if的3种假设..造句3个.. 以及 would 在什么情况下后面要+be 在什么情况下要用BE动词,在什么情况下动词后面要加ing【除现在进行时】什么情况下情态动词的后面需要加 be If +主语+had had down ,主语+would have down...这个虚拟语气的用法是在什么情况下使用 If 后面的主句和从句分别有哪几种不同的形式?分别在什么情况下使用? would在什么情况下用,单纯的在动词前面加would而不是would like pascal 初级的一个问题,这里需要在 if 后面加 begin 和end吗 ,他们什么情况下加英语造句造if引导的3个句子用could mignt + being 造句be fyiendiy to造句be cove 请问英语在什么情况下在前面的单词会跑到后面去.3Q what would you like在什么情况下用的间接引语中什么情况下用IF 以及WHETHER 英语造句时,人称代词（主格）,在什么情况下后面必须加be动词（am,is,are）,什么情况下又不加?请举例说明,谢谢