牛津译林版高中英语选修六unit3understandingeachotherword语法讲练

牛津译林版高中英语选修六unit3understandingeachotherword语法讲练内容摘要：

5) We could have done the work better in that case. 要是那样的话，我们本可以把工作干得更好一些的。 (2) 用一个副词或连词 but / otherwise / or等表示虚拟条件和真实情况交织在一句中 如 ： 1) He telephoned to inform me of your birthday， or (=If he hadn39。 t telephoned to inform me of your birthday)I would have known nothing about it. 2) There might have been a terrible accident, but he braked the car before it was too late. = if he hadn’t braked the car before it was too late. 3) He would have e to see you earlier but he just came back from his business trip .（本句中的上下文是： but he just came back from his business trip，表示：要是他在家没出差的话）他本来早就来看你了，可他却出差刚刚回来。 4) But that you helped me, I would have failed in the experiment. （本句中的上下文是： But that you helped me，表示：要不是有你帮助我）要没有你帮助我，我 的试验本做不成功的。 (3) be动词在表示与现在事实相反的从句中一般用 were。 在非正式情况下，第一、第三人称后偶尔也用 was 如： If he were you， he would go at once. (4) 主句中的 should通常用于第一人称， would， could以及 might可以用于各种人称 (5) 在表示与将来事实相反的条件句中，只能用 should，而不能用 would， could和 might 等 如： If it should rain tomorrow， we would not go camping. (should rain也可以用 rained， were to rain代替 ) (6) 错综时间非真实条件句中的虚拟语气 在错综条件句子中，虚拟条件从句和主句动作发生的时间不一致，因此，主句和从句的谓语动词应根据所指的时间选用适当的虚拟语气形式。 例如： 1） If I were you， I wouldn39。 t have missed the film last night. 如果我是你，我就不会错过昨天晚上的那部电影。 （从句与现在事实相反，主句与过去事实相反。 ） 2） If he had followed the doctor39。 s advice， he would recover already. 如果他遵照医生的劝告，现在病就好了。 （从句与过去事实相反，主句与现在事实相反。 ） 3) If the boy hadn39。 t been saved this afternoon, his family would not be in peace now. 如果那个男孩今天下午没有被救，他的家现在就不会如此安宁。 4) If the m。