作业帮情态动词与虚拟语气问题.
来源：学生作业帮 编辑：作业帮 分类：英语作业 时间：2024/05/27 00:56:55
情态动词与虚拟语气问题.
He ----- you more help ,even though he was very busy.
A might have given Bmight give Cmay have given Dmay give
Mr Bush is on time for everything.How _____ it be that he was late for the opening ceremony.
Acan BshouldCmay Dmust
He ----- you more help ,even though he was very busy.
A might have given Bmight give Cmay have given Dmay give
Mr Bush is on time for everything.How _____ it be that he was late for the opening ceremony.
Acan BshouldCmay Dmust
1、A 考查虚拟语气：“might have done”可以用来表示“本来有可能做某事,事实上却没做”,表达一种婉转的批评或责备.本题是说“他即使很忙也可能帮助你的（但实际上却并没有）”.因为是谈论过去的事情,情态动词应与不定式的完成式连用,排除B和D.C是对过去事实的推测,与后文不符.选A.
考点：考查虚拟语气
点评：在even if,even though 所引导的让步状语从句中,可用虚拟语气,主句、从句的结构与if所引导的条件从句的各种时态、结构相同.如：Even if he were here himself,he should not know what to do.即是他亲自来也不知该怎么办
2、A can表示可能性的推测,常用于疑问句或否定句中；may表“可能性”常用于肯定句或否定句中；must常用于肯定句中表推测,“一定……”的意思．
再问： 第二题中，我可以用“how should ,,,”句型吗？
再答： 不能
考点：考查虚拟语气
点评：在even if,even though 所引导的让步状语从句中,可用虚拟语气,主句、从句的结构与if所引导的条件从句的各种时态、结构相同.如：Even if he were here himself,he should not know what to do.即是他亲自来也不知该怎么办
2、A can表示可能性的推测,常用于疑问句或否定句中；may表“可能性”常用于肯定句或否定句中；must常用于肯定句中表推测,“一定……”的意思．
再问： 第二题中，我可以用“how should ,,,”句型吗？
再答： 不能