选修六unitwordsexpressions.pptVIP

1. come about发生　造成 类似意思的词或短语还有：happen，take place，occur，break out，它们都不能用在被动语态中，用法各有不同： take place表示“发生、举行、举办，一般指非偶然事件的发生，即这种事件的发生一定有某种原因或事先的安排； happen一般用于偶然或突发性事件： occur表示“发生或想到、突然想起”，意为“发生”时相当于happen； break out表示“发生、爆发”，常指战争、灾难、疾病或争吵等事件的发生。 [背诵句型] How does it come about that he is always busy? 他怎么老是这么忙？ What happened to you? 你发生什么事了？ It occurred to me that she didn’t know I had moved into the new house. 我突然想起她不知道我搬了新房子了。 [动手练习] ①It’s already 10 o’clock.I wonder how it________that she was two hours late on such a short trip. A．came over　　　 B．came out C．came about D．came up 答案：C ②The dictionary is being printed and it will soon________. A．turn out B．come out C．come across D．go out 答案：B ③I don’t know whether you happen________that I’m going to study in the U．S.A. this September. A．to be heard B．to be hearing C．to hear D．to have heard 答案：D ④It________me that he had told me where the key was and we entered the house without effort. A．happened to B．occurred to C．came about to D．struck to 答案：B ⑤我无法理解你怎么在一个星期内迟到三次。 I’ll never understand how it________that you were late three times a week. 答案：came about ⑥2008年奥运会在北京举行。 The Olympic Games of 2008________in Beijing. 答案：took place ⑦午夜时分医院发生了火灾。 A fire________in the hospital in the mid-night. 答案：broke out 2．subscribe to同意、赞同(信仰或观点)；订阅；定期捐款，其中to为介词。 [背诵句型] I have never been able to subscribe to such a strange theory. 我根本不能赞同这样一个奇怪的理论。 I subscribe to a weekly women’s magazine. 我订购了一份妇女周刊。 She subscribes to society which helps to protect animals. 她定期捐款给一个动物保护协会。 [动手练习] ①我不能赞同那个观点。 I can’t________that opinion. 答案：subscribe to ②我计划订阅几份报纸。 I________several newspapers. 答案：planned to subscribe to 3．quantity n．量；数量；　 quality n. 质量 a quantity of…　　　许多；大量(可数；不可数) quantities of… 许多；大量 in quantity 批量；大量 提示：a quantity of和quantities of语意相当，既可以修饰可数名词，又可以修饰不可数名词，但前者修饰主语时，谓语动词常用单数形式，后者修饰主语时，谓语动词常用复数形式。 [背诵句型] Quantities of earth are being carried away when it rains. 下雨时，大量的泥土被冲走。 It’s cheaper to buy goods in qu