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1、语气：语气的定义和种类、虚拟语气的套用规则第一部分：语气的定义和种类1 语气(mood)语气是动词的一种形式，表示说话人对某一行为或事情的看法和态度。2 语气的种类、陈述语气：表示动作或状态是现实的、确定的或符合事实的，用于陈述句、疑问句和某些感叹句。如：There are two sides to every question.每个问题都有两个方面。Were you busy all day yesterday?昨天一整天你都很忙吗？How good a teacher she is!她是多好的一位老师啊！、祈使语气：表示说话人对对方的请求或命令。如：Never be late again!
2、再也不要迟到了。Dont forget to turn off the light.别忘了关灯。、虚拟语气：表示动作或状态不是客观存在的事实，而是说话人的主观愿望、假设或推测等。如：If I were a bird, I could fly in the air.如果我是一只小鸟，我就能在空中飞行。I wish I could pass the examination.我希望我能通过考试。May you succeed!祝您成功！虚拟语气的套用规则非真实条件句 1）时态：可以表示过去，现在和将来的情况。它的基本特点是时态退后。a.同现在事实相反的假设。 句型 ：条件从句 主句 一般过去时sho
3、uld( would) +动词原形 例句： If they were here, they would help you.b. 表示于过去事实相反的假设。句型：条件从句 主句 过去完成时 should(would) have+ 过去分词例句： If she had worked harder, she would have succeeded. The rice would not have been burnt if you had been more careful. If my lawyer had been here last Saturday, he would have preve
4、nted me from going.If he had come yesterday, I should / would have told him about it. 含义：He did not come yesterday, so I did not tell him about it. If he had not been ill and missed many classes, he would have made greater progress. 含义： He was ill and missed many lessons, so he did not make greater
5、progress.c. 表示对将来的假想 句型：条件从句 主句 一般过去时 should+ 动词原形 were+ 不定式 would + 动词原形 should+ 动词原形If you succeeded, everything would be all right.If you should succeed, everything would be all right.If you were to succeed, everything would be all right. 混合条件句：主句与从句的动作发生在不同的时间，这时主，从句谓语动词的虚拟语气形式因时间不同而不同，这叫做混合条件句。
6、If you had asked him yesterday, you would know what to do now. （从句与过去事实相反，主句与现在事实相反。）If it had rained last night (过去), it would be very cold today (现在).虚拟条件句的倒装 虚拟条件句的从句部分如果含有were, should, 或had, 可将if省略，再把were, should或had 移到从句句首，实行倒装。 Were they here now, they could help us.=If they were here now, the
7、y could help us. Had you come earlier, you would have met him=If you had come earlier, you would have met him. Should it rain, the crops would be saved.=Were it to rain, the crops would be saved.注意：在虚拟语气的从句中，动词be的过去时态一律用were，不用was， 即在从句中be用were代替。 If I were you, I would go to look for him. 如果我是你，就会去
8、找他。 If he were here, everything would be all right. 如果他在这儿，一切都会好的。典型例题：_ to do the work, I should do it some other day. A. If were I B. I wereC. Were ID. Was I 答案C. 在虚拟条件状语中如果有were, should, had这三个词，通常将if省略，主语提前, 变成 were, should, had +主语的形式。但要注意，在虚拟条件状语从句中，省略连词的倒装形式的句首不能用动词的缩略形式。如我们可说 Were I not to d
9、o., 而不能说 Werent I to do.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)suggestedIt is (2)importantthat+ (should) do (3) a pity(1)suggested, ordered, proposed, required, demanded, requested, insisted； + (should) do(2)important, necessary, na
10、tural, strange，a pity, a shame, no wonder(3)It is suggested that we (should) hold a meeting next week.It is necessary that he (should) come to our meeting tomorrow.2）在宾语从句中的应用：在表示命令、建议、要求等一类动词后面的从句中。order, suggest, propose, require, demand, request, insist, command, insist + (should) do I suggest th
11、at we (should) hold a meeting next week. He insisted that he (should ) be sent there.注意： 如suggest, insist不表示建议 或坚持要某人做某事时，即它们用于其本意暗示、表明、坚持认为时，宾语从句用陈述语气。 The guard at gate insisted that everybody obey the rules.判断改错:（错）You pale face suggests that you (should) be ill. (对) Your pale face suggests that
12、you are ill. (错) I insisted that you ( should) be wrong. (对) I insisted that you were wrong.3）在表语从句，同位语从句中的应用：在suggestion, proposal, idea, plan, order, advice等名词后面的表语从句、同位语从句中要用虚拟语气，即（should）+动词原形。 My idea is that we (should) get more people to attend the conference. I make a proposal that we (shoul
13、d) hold a meeting next week.wish的用法 1）用于wish后面的从句，表示与事实相反的情况，或表示将来不太可能实现的愿望。其宾语从句的动词形式为： 真实状况wish后 从句动作先于主句动词动作现在时过去时（be的过去式为 were） 从句动作与主句动作同时发生过去时过去完成时（had + 过去分词）将来不大可能实现的愿望将来时would/could +动词原形I wish I were as tall as you.我希望和你一样高。He wished he hadnt said that. 他希望他没讲那样的话。I wish it would rain tomo
14、rrow. 我希望明天下雨就好了。2）Wish to do表达法。 Wish sb / sth to do I wish to see the manager. = I want to see the manager. I wish the manager to be informed at once. (= I want the manager to be informed at once.)比较if only与only if only if表示只有；if only则表示如果就好了。If only也可用于陈述语气。I wake up only if the alarm clock rings. 只有闹钟响了，我才会醒。If only the alarm clock had rung.当时闹钟响了，就好了。If only he comes early.但愿他早点回来。It is (high) time that It is (high
