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ndent: 2em; text-align: left;">有用的知识才是真正的知识，知识的实用才有价值意义。智商的高低体现知识多少，情商的高低体现能力的大小。接下来小编给大家分享关于高三英语虚拟语气知识，希望对大家有所帮助！
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ndent: 2em; text-align: left;">含蓄条件句中的虚拟语气
ndent: 2em; text-align: left;">有时候，虚拟条件不是通过if引导的条件句来表示，而是暗含在上下文中。
ndent: 2em; text-align: left;">（1）用but for 、without(如果没有）等来代替条件从句。
ndent: 2em; text-align: left;">?Without electricity human life would be quite different.
ndent: 2em; text-align: left;">=If there were no electricity, human life would be quite different.
ndent: 2em; text-align: left;">如果没有电，人类的生活将会有很大不同。
ndent: 2em; text-align: left;">（2）用otherwise、or(or else)、even though等表示与上文的情况相反，从而引出虚拟语气。
ndent: 2em; text-align: left;">?I lost your address. Otherwise, I would have visited you long before.
ndent: 2em; text-align: left;">=I lost your address. If I hadn’t lost your address, I would have visited you long before.
ndent: 2em; text-align: left;">你的地址我弄丢了，要不我早就去拜访你了。
ndent: 2em; text-align: left;">（3）虚拟条件通过but暗示出来。
ndent: 2em; text-align: left;">?He would have given you more help,but he was too busy. 他本来会给你更多的帮助，但是他太忙了。
ndent: 2em; text-align: left;">也就是说，如果那时他不忙，他可以给你更多的帮助。句中but he was too busy实际上暗示了一个虚拟条件——如果那时他不忙。
ndent: 2em; text-align: left;">?He would lose weight,but he eats too much. 他本来可以减肥的，但是他吃得太多了。
ndent: 2em; text-align: left;">也就是说，如果他吃得不多的话，他是可以减肥的。句中的but he eats too much实际上暗示了一个虚拟条件——如果他吃得不多。
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ndent: 2em; text-align: left;">名词性从句中的虚拟语气
ndent: 2em; text-align: left;">1．用于表示建议、愿望、命令等动词后的宾语从句中
ndent: 2em; text-align: left;">常见的动词有：demand，order，require，insist，suggest，propose，advise，request，urge，command，prefer，desire，recommend等。宾语从句中的虚拟语气结构为＂should＋动词原形＂，should可以省略。
ndent: 2em; text-align: left;">?Her mother suggested that she should go and see the doctor.她妈妈建议她去看医生。
ndent: 2em; text-align: left;">【特别提醒】
ndent: 2em; text-align: left;">★ suggest表＂暗示＂，insist表＂坚持认为＂时不用虚拟语气。
ndent: 2em; text-align: left;">试比较：
ndent: 2em; text-align: left;">?He insisted that I had read his letter. 他坚持说我看过他的信。
ndent: 2em; text-align: left;">?He insisted that I should read his letter. 他坚持要我看他的信。
ndent: 2em; text-align: left;">?He suggested that we (should) stay for dinner. 他建议我们留下吃饭。
ndent: 2em; text-align: left;">?I suggested that you had a secret understanding with him. 我觉得你与他心照不宣。
ndent: 2em; text-align: left;">2．用于主语从句中
ndent: 2em; text-align: left;">常见句型：It is important/necessary/urgent/essential/ ... + that...
ndent: 2em; text-align: left;">It is sb’s order/desire/suggestion/advice/ ... + that...
ndent: 2em; text-align: left;">It is suggested/advised/demanded/requested/ ... + that
ndent: 2em; text-align: left;">从句谓语形式：（should+）动词原形
ndent: 2em; text-align: left;">?It is ordered that the army (should) get there by 4 a.m. 军队必须在上午4点之前到达那里。
ndent: 2em; text-align: left;">?It is necessary that we (should) clean the room every day. 我们每天打扫房间是有必要的。
ndent: 2em; text-align: left;">?It is suggested that the meeting (should) be put off till next week.人们建议会议推迟到下周。
ndent: 2em; text-align: left;">3．用于表语从句和同位语从句中
ndent: 2em; text-align: left;">在suggestion，proposal，order，plan，idea，request，advice等名词后的表语从句和同位语从句中要用虚拟语气，其构成是＂should＋动词原形＂，should可以省略。
ndent: 2em; text-align: left;">?His demand is that the boy should go with him.他要求这个男孩和他一起去。
ndent: 2em; text-align: left;">?Our suggestion is that you (should) be the first to go. 我们的建议是你应该第一个去。
ndent: 2em; text-align: left;">?He issued the order that the troops (should) withdraw at once. 他命令部队马上撤退。
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ndent: 2em; text-align: left;">其他句型中的虚拟语气
ndent: 2em; text-align: left;">1．would rather后的宾语从句中，表示愿望，意为＂宁愿；但愿＂。用一般过去时表示与现在或将来事实相反；用过去完成时表示与过去事实相反。
ndent: 2em; text-align: left;">?I would rather he had passed the exam.
ndent: 2em; text-align: left;">我宁愿他通过了那次考试。
ndent: 2em; text-align: left;">2．在＂It is (about/high) time＋that从句＂中，谓语动词常用过去式或＂should＋动词原形＂表示虚拟语气，注意should不可省略。
ndent: 2em; text-align: left;">?It’s high time that we devoted ourselves to environmental protection.
ndent: 2em; text-align: left;">是我们致力于环境保护的时候了。
ndent: 2em; text-align: left;">3．as if，as though引导的表语从句和方式状语从句中常用虚拟语气，与现在事实相反用一般过去时；与过去事实相反用过去完成时。
ndent: 2em; text-align: left;">?They talked and talked as if they would never meet again.
ndent: 2em; text-align: left;">他们谈啊谈好像永远不会再见面一样。
ndent: 2em; text-align: left;">4．if only引导的感叹句中，用虚拟语气表示愿望。
ndent: 2em; text-align: left;">?Look at the trouble we’re in.If only we had taken our teacher’s advice！
ndent: 2em; text-align: left;">看看我们所处的困境，要是我们接受老师的建议就好了！
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