英语 Unit 3 Understanding each other Grammar and usage课件 牛津版选修6 课件VIP专享VIP免费

Unit 3Understandingeach otherGrammar and usageTo learn to identify an unreal conditional in a sentenceTo learn the forms of unreal conditionalsTo learn when to use the unreal conditionalsTo learn how to use the unreal conditionalsUnreal conditionals虚拟语气And you probably much sleep if you near where a wedding reception was being held.如果你住的地方离婚礼现场不远，你很可能睡不好。wouldn’t getlivedUnreal conditionals虚拟语气 语气（ mood ）也是动词的一种形式变化。它表示说话者对所指的动词或状态所持的态度，而且，在谓语动词上有所体现，语气可分为三种：陈述语气、祈使语气和虚拟语气。 Introduction 虚拟语气 (the Subjunctive Mood)是用来表示说话人所说的话不是事实，而是主观愿望、假使、建议、推测、纯粹的空想等。 例 1 ：These doggies are sleeping very soundly. （陈述语气） 例 2 ：Stop laughing!（祈使语气） If you keep beating me like this, I would tell your teacher.例 3 ：（虚拟语气） 虚拟语气可用于条件句和其它一些从句中。虚拟语气用于条件句中的情况较复杂 , 所以要特别加以注意。首先，要判断一下是否该用虚拟语气 , 因为条件句有两种 , 一种是真实条件句 , 一种是非真实条件句 , 只有在非真实条件句中才用虚拟语气 , 在真实条件句中 , 要用陈述语气。If my aunt comes this afternoon, she will bring me some gifts. 如果姨妈下午来，她会给我带礼物的。1. 真实条件句 :If he were to leave today, he would get there by Friday. 假如他今天离开，他周五将到那儿。If I were you, I would go to look forhim. 如果我是你，就会去找他。2. 非真实条件句 : 如果条件句假设的情况完全不存在或者实现的可能性很小 , 甚至可以说几乎没有时 , 就需要用虚拟语气来表达 , 也就是说 , 此时的条件句是非真实条件句。非真实条件句的谓语动词形式：与现在事实相反的条件句的结构：条件句：过去时（ be 动词用 were ）主句： would/could/might+ 动词原形If I were you, I should/would go at once.If I got the chance, I would want to be a lawyer.例如：注意 : 在非正式表述或口语中， if I/h...