2015年职称英语考试已经开始备考,本阶段应该多整理一些基础词汇和语法。为此,医学全在线职称外语频道特整理了“2015年职称英语备考语法资料”供您参考,希望对您有帮助!
(8)过去将来时表示在过去预计将要发生的动作或存在的状态。
①过去将来时由“助动词should(第一人称)或would(第二、三人称)+动词原形”构成。在美国英语中,过去将来时的助动词一律用“would +动词原形”。
②过去将来时常由于宾语从句中,时间状语有:later,soon,the next(day)
③在时间状语从句和条件状语从句中不可以使用过去将来时,而应该使用一般过去时。如:He promised that he would pay me a lot if I helped him with the project.(他答应付给我许多钱如果我帮助他搞那个项目)/ Every time when he was free,he would sit down and read some books.(每次只要他有空他就会坐下来看看书)
④表示纯粹的将来时用would或should,表示打算或主观认为的事情用was/were going to(+动词原形)。如:She told me she would be 18 the next month.(她告诉我她下个月就18岁了)/ She told me that she was going to have a walk with her pet dog.(她告诉我她打算带她的宠物狗去散步)
⑤过去将来时还可以表示一个过去经常性的动作。如:When it rained in the day,he would bring an umbrella with him.(白天下雨时他会随身带一把雨伞)