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1、7c3df20cd5a1a70468abe02c3cdb0779.pdf 第 1 页 共 9 页 虚拟语气的用法及专项练习题 Book6 Module5 语法聚焦 Mr.Zhao 虚拟语气表示一种假设的情况，或一种主观的愿望，即动词所表示的动作或状态并非事实， 或不可能实现。英语虚拟语气的形式有下列几种： 一.虚拟语气用于条件状语从句 注意:主句中的 should 通常用于第一人称,would 可用于任何人称,同时也可根据意思用情态动 词 could,might 等代替 should,would。1.与现在事实相反 连接词 条件从句 结果从句 If 1).动词过去式(或 were) 2).助动
2、词（过去式）+动词原形 Should/Would/Could/might+动词原 形 If had the time, John would make a trip to China to see the Great Wall. If I were you, I would give up drinking immediately. 2.与过去事实相反 连接词 条件从句 结果从句 If had+过去分词 Should/Would/Could/might + have+过去分词 If Id known that it was going to rain, I would never have g
3、one for a walk in the country. 3.与将来事实相反 连接词 条件从句 结果从句 If 1. should+动词原形 2. 动词过去式 3、were to+动词原形 Should/Would/could/might+动词原形 If it were to/should rain tomorrow,the meeting would be put off. If you went there next time, you would see what I mean. 4.错综时间虚拟语气 当条件状语从句表示的行为和主句表示的行为所发生的时间不一致时,动词的形式要根据它
4、所表示的时间来调整。例如: If I were you, I would have gone home.（从句说的是现在，主句指的是过去。 ）7c3df20cd5a1a70468abe02c3cdb0779.pdf 第 2 页 共 9 页 If you had followed the doctors advice,you would be quite all right now.(从句说的是过去,主句指 的是现在。) If the weather had been more favorable ,the crops would be growing still better. 其它状语从句
5、1. 方式状语 as if(as though) 如果从句表示与现在事实相反,谓语动词用一般过去时;表示与过去事实相反,谓语动词用 “had+过去分词“;表示与将来事实相反,谓语动词用“would(might,could)+动词原形“。例如: He looks at me as if I were mad. He spoke English so fluently as if he had studied English in England. 但 as if(as though)后的从句也常用陈述语气,这是因为从句中的情况往往是可能发生的或可能 被设想为真实的。例如: It looks as
6、 if our side is going to win. 2. 目的状语 in order that,so that 从句谓语动词用“ may/might,can/could)+动词原形“。例如: She listened carefully in order that she might discover exactly what he wanted. 3. 连词引导的条件状语从句: in case , unless ,supposing ,providing,on condition that 从句谓语动词用(should)或“ might, could) +动词原形“。 4. 连词引导
7、的步状语从句 lest ,for fear that 等 We hid behind some bushes for fear that passer-by should see us. 二.虚拟语气用于宾语从句 1.Suggest, advise 等动词之后宾语从句须用虚拟语气，其句子结构如下： 要求：ask demand require request beg plead insist pray urge 建议：suggest advise propose recommend move 命令、决定：order command decide determine resolve 其它：cons
8、ent deserve desire intend maintain prefer 等后面的宾语从句中 +that(should )+动词原形 注意：在此结构中 that 不可省略；should 省不省均可。 He suggested that they (should ) stop smoking. They demanded that the black people should be treated as well as white people. 如果 that 引导的从句所表达的内容是事实，也可用陈述语气。 He insists that he is right. 注意:insis
9、t 作“力言“、“强调“解时,宾语从句不用虚拟语气。只有当 insist 作“坚持(应该)“解时,宾语从句才用虚拟语气。例如:7c3df20cd5a1a70468abe02c3cdb0779.pdf 第 3 页 共 9 页 Mike insisted that he had never stolen anything. I insisted that you give me my money back. 2.“wish+宾语从句“表示不能实现的愿望,汉语可译为“可惜“、“就好了“、“悔不 该“、“但愿“等。表示现在不能实现的愿望,从句的谓语动词用过去式;表示将来不能 实现的愿望,用“would
10、(could)+动词原形“;表示过去不能实现的愿望,用“had+过去分词“或 “(could)would+have+过去分词“。例如: wish 的用法 1). 与现在事实相反 :动词过去式或 were I wish we could go to the seaside today. I wish I were a pop singer. (=I am sorry I am not a pop singer.) 2).与过去事实相反 : 主语+wish(that)+主语 + 动词过去完成式 We wish we had arrived there two hours earlier. I wi
11、sh I had never stopped teaching. (=I am sorry I stopped teaching.) 3).与将来事实相反 :助动词过去式+动词原形 I wish theyd let us get some sleep. 注意：wish 与 hope 接宾语从句的区别在于：hope 表示一般可以实现的希望，宾语从句用陈 述语气。wish 表示很难或不大可能实现的希望,宾语从句用虚拟语气。试比较： （1） We hope they will come,(We dont know if they can come.) （2） We wish they could c
12、ome,(We know they are not coming.) 3.虚拟语气在 would rather/would sooner/would just as soon 后接从句: Id rather you paid me now.(从句用过去时指现在) I would rather they came tomorrow.(从句用过去时指将来) Id rather she hadnt done that.(从句用过去完成时指过去)(此句中的 would 可看作是表愿望的实 义动词) 三.虚拟语气用于主语从句 在主语从句中,谓语动词的虚拟语气结构用“should+动词原形“的结构,表示惊
13、奇、不相信、惋 惜、理应如此等。例如: It is necessary( appropriate/ crucial / desirable/dreadful / essential/important /improper incredible/ indispensable / insistent /natural / preferable / possible / probable/ proper / right /.significant / surprising /strange/ tragic / urgent /vital /wrong etc.)that we should clea
14、n the room every day. 7c3df20cd5a1a70468abe02c3cdb0779.pdf 第 4 页 共 9 页 It was a pity(a shame,no wonder,etc.)that you should be so careless. It will be desired(suggested,decided,ordered,requested,proposed,etc.)that she should finish her homework this afternoon. a 在上述三种主语从句中,should 意为“应该“、“竟然“,可以省去,但不
15、可换用 would。主句所用 动词的时态不限。 注意:这种从句表示的是事实。如果说话人对这种事实表示惊奇,就可用虚拟语气。反之,如果 不表示惊奇,that 从句也可用陈述语气。例如: It is strange that he did not come yesterday. It is a pity that you cant swim. 四.虚拟语气用于表语从句、同位语从句 要求：demand requirement request motion pray insistence 建议：suggestion advice proposal recommendation motion 命令、决定
16、：order command decision determination resolution 其它：plan desire idea necessity preference 等名词的表语从句和同位语从句,其谓语动词要 用虚拟语气的结构“(should)+动词原形“。例如: We all agreed to his suggestion that we(should)go to Beijing for sightseeing. My idea is that he (should)do exercises first. 五、虚拟语气的几种特殊用法 1.省掉 if 的条件从句倒装结构：(should, had, were) Had you asked me, I would have told you. (=If you had asked me,) Were I you, I would be ba
