2014届高三人教版英语(浙江专版)总复习课件：必修2Unit1Culturalrelics.ppt

(3)“情态动词+完成时”结构经常用来表示对过去所发生事情的推测。 could have done 过去本来能够做…… could not/never have done过去不可能做过…… must have done过去一定做过…… might have done过去可能做过…… should have done过去本应该做(实际上没有做) shouldn’t have done过去本不应该做(实际上已经做了) needn’t have done 过去没有必要做（实际上却做了） would have done过去本来会做…… ①He could have arrived before 8: 00，but he missed the early bus. 他本来能在8点之前到的，可他没有赶上早班公共汽车。 ②You couldn’t have bought such an expensive car. You must have borrowed it from a rich friend. 你不可能买一辆这么昂贵的车。你肯定是从一个富朋友那里借的。 ③When you spoke in front of 300 people, you ____ ____ ____ ________. 面对300人讲话，你一定感到紧张了。 must have been nervous 7. There is no doubt that the boxes were then put on a train for Knigsberg, which was at that time a German city on the Baltic Sea. 毫无疑问，这些箱子后来被装上火车运往哥尼斯堡，当时德国在波罗的海边的一个城市。 There is no doubt that. . . 意为“毫无疑问……”，是固定句式。 (1)当名词doubt用在否定句中时，后面接that引导的同位语从句；用在肯定句中时，后面接whether引导的同位语从句。注意不可以用if替换whether。 (2)及物动词doubt后接名词、代词或宾语从句。在否定句和疑问句中，doubt后面接that引导的宾语从句；在肯定句中，doubt后面一般接whether或if引导的宾语从句。 ①There is no doubt at all that we did the right thing. 毫无疑问我们做得对。 ②There is some doubt whether he can win the first prize. 他是否能赢得一等奖还有些疑问。 ③I doubt __________ the new one will be any better. 我不敢肯定这个新的是否会好些。 ④I never doubted _____ she would come. 我从未怀疑过她会来。 whether/if that 1. design n. 设计；图案；构思 vt. 设计；计划，构思 by design (=on purpose) 故意地；蓄意地 design sb. /sth. to do sth. 打算让……从事…… design sb. /sth. for. . . 打算让……用作某种目的 be designed for/to do sth. 计划做；打算用来做 ①These exercises are designed to develop and strengthen muscles. 这些运动是为了增强肌肉力量而设计的。 ②This house __ ________ ___ a large family. 这所房子适合大家庭居住。 ③The experiment __ ________ __ ____ the new drug. 这个实验的目的是想测试这种新药品。 is designed for is designed to test 2. take apart 拆开；拆散 ①It’s easy to take a watch apart but difficult to put it together again. 把表拆开容易, 再装起来难。 ②Pat took apart the TV set and spread the bits all over the carpet. 帕特拆开电视机，把零件散置在地毯上。 【拓展】 tell apart 区