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英语四级语法精讲——虚拟语气
大学英语四级考试涉及的语法知识点多、涉及面宽，对不少考生来说都是一个难题。希望通过本专题的学习，考生能对四级语法有更全面的掌握！ 虚拟语气 1. if 引导的虚拟语气 2. 倒装形式 Were I you (=if I were you) , I would get up early in the morning. Had you arrived at the station ten minutes earlier yesterday(=If you had arrived…), you could have caught the train. Should it rain (=If it should rain), the crops would be saved. 【2】馒头面条原理 【3】固定句型 It is time that ... Would rather that ..... (1) I would rather he came tomorrow than today. (2) John would rather that she had not gone to the party yesterday evening. (3) I would rather everything hadn' t happened in the past. “It is (was)+形容词(或过去分词)+that……”结构中的虚拟语气 1. It is necessary that we (should 可省略,下同)have a walk now. 2.It was necessary that we (should) make everything ready ahead of time. 3. It is required that nobody (should) smoke here. 4. It is important that every pupil (should) be able to understand the rule of school. 练习 1. He’ll be busy this afternoon. If he ___ free, he ___ to the cinema with you. A. were to be; might go B. am going to be; will go C. will be; might have gone D. is; will go 2. When Edison died, it was proposed that the American people _____ all power in their homes, streets, and factories for several minutes in honor of this great man. A. turn off B. turned off C. would turn off D. had turned off 3. Had I known her name, _____. A. or does she know mine? B. and where does she live? C. I would have invited her to lunch D. she would be beautiful 4. I'd rather you ______ by train, because I can't bear the idea of your being in an airplane in such bad weather. A. would go B. should go C. went D. had gone 5. The victim ________ (本来会有机会活下来) if he had been taken to hospital in time. would have a chance to survive (06. 12 翻译) 6. The professor required that ________ (我们交研究报告)。 we hand in our research report(s) (06. 6 翻译) 7. If Sept. 11 had never happened, the airport workers would not have been arrested and could have gone on quietly living in America, probably indefinitely. (06. 6 阅读) 8. W: What would you do if you were in my place? M: If Paul were my son, I’d just not worry. Now that his teacher is giving him extra help and he is working hard himself, he’s sure to do well in the next exam. Q: What’s the man’s suggestion to the woman? 9. A) Teaching her son by herself. C) Asking the teacher for extra help. B) Having confidence in her son. D) Telling her son not to worry. (07.12) 11. You’d better take a sweater with you ________________ (以防天气变冷) in case it (should) turn cold. (08.12) 12. If she had returned an hour earlier , Mary (就不会被大雨淋湿了). 09.6 . wouldn’t have been caught by the rain 13. You would not have failed if you __________________________(按照我的指令去做). had followed my instructions/orders (09.12) 声明：沪江网高度重视知识产权保护，发现本网站发布的信息包含有侵犯其著作权的链接内容时，请联系我们，我们将做相应处理。
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虚拟语气归纳和练习 1
虚拟语气的重点是： 1．一些常见的虚拟语气的句型或结构。 2．虚拟语气
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基础语法规则：虚拟语气
在学英语的过程中，相信有不少同学们都对虚拟语气感到很无奈，要求多，变化形式多端，与现在未来过去相反的假设有着完全不同的表达模式，那么虚拟语气到底过时不过时呢？
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特殊的虚拟语气词：should
16.5 特殊的虚拟语气词：should 1） It is demanded / necessary / a pity + that…结构中的主语从句的谓语动词要用should 加动词原形， should 可省略。 句型： (1)suggested It is (2)important that…+ (should) do (3) a pity (1)suggested, ordered, proposed, required, demanded, requested, insisted； + (should) do (2)important
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英语专四语法总结—虚拟语气
虚拟语气 1.主从句谓语动词的时态 (1)掌握主从句谓语
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主语从句中的虚拟语气问题（三）
通过驾驶考试真是遗憾。 It is a pity (that) she should have failed the driving examination. 她竟然没有通过驾驶考试，真是可惜啊! 与本句型相语从句是一个重要的语法点，主语从句是中学阶段的重点语法似的还有 it is a shame that…句型： It’s a shame that they are so wasteful. 这样浪费太遗憾了。 It’s a shame that they should be so wasteful. 竟然这样浪费真是太遗憾了。 注：连词that的省略问题 引导主语从句的连词that 有时可省，有时不能省，其原则是：若that引导的主语从句直接位于句首，则that不能省略
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主语从句中的虚拟语气问题（一）
一个人都成为科学家。 2. it is impossible that…句型： It is impossible that he should go home. 他不可能会回家去。 3. it is essential that…句型： It is essential that the meeting start at eight. 会议务必在8点钟开始 It is essential that we should tell her the news. 我们有必要告诉她这个消息。 4. it is desirable that…句型： It is desirable that everything should be ready by five o’clock. 最好一切在5点前准备就绪。 It is desirable that there should be a cold season once a year. 每语从句是一个重要的语法点，主语从句是中学阶段的重点语法年有一个寒冷的季节，是很令人盼望的。 5. it is advisable that…句型： It is advisable that everyone should have a map. 最好每一个人都有一张地图。 It is advisable that he should see a dentist regularly. 他定期去看牙科医生是明智的。
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主语从句中的虚拟语气问题（二）
我们说一声就走了。 It’s strange that he should have left without telling us. 奇怪，他竟然没有和语从句是一个重要的语法点，主语从句是中学阶段的重点语法我们说一声就走了。 与本句型相似的还有以下句型： 1. it is natural that…句型： It’s natural that you should forget it. 你忘了这事不足为奇。 It is quite natural that he should think so. 他这样想是很自然的事。 2. it is amazing that…句型： It is amazing that they’re still together. 他们还在
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2016考研英语：十二大基础语法体系之虚拟语气
虚拟语气 多数中国人对虚拟语气的理解是：虚拟语气表示说话人的愿望，是假设的，虚现时，条件状语从句和主句的谓语动词有以下形式：(见表) 条件状语从句的动词形式(三种) 主句的动词形式 (1)if十主语+动词过去式(be的过去式用were)，通常要与一个表示将来的时间状语连用. (2)If+主语(任何人称和数)+should+动词原形 (3)if+主语(任何人称和数)+were to+动词原形 I(we)should+动词原形 主语+would (might, could)+动词原形 4、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所表示的时间来调整。这与以上三种情况不同，虚拟语气的谓语动词形式没有遵循以上规律。 5. 以上句型可以转换成以下形式： 1)条件状语从句省略if：在书面语中，如果条件状语从句的谓语中有were, had 或should, 就可以省略if, 并将were, had 或should
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