Section Ⅲ Grammar and usage 阅读以下短文，感悟加黑部分所使用的时态和语态 Du Fu：China’s Greatest Poet，a BBC one-hour documentary，was launched on April 6,2020.It is the first time that Du’s life ①has been put in a global context.For the Chinese，Du is more than a poet；he ②has been acting as the guardian of the morality of the nation up to date.Born in 712，Du lived through the violent fall of the Tang Dynasty when wars，floods and famines almost ruined the country.In his poems，he poured out his concern for his country and people as well as the importance of celebrating the few simple joys of life. This documentary is a must-see.To help Western audiences make sense of the poet’s great achievements in literature，Du is compared to China’s Shakespeare in this documentary.Also the program invited McKellen，who played Gandalf in The Lord of the Rings movies，to read 15 of Du’s poems that had been translated into English.These can help foreigners better understand what ③has made Du’s works so special.In a way，the documentary ④has been displaying the charm of traditional Chinese literature to the world，inspiring more people around the globe to learn Chinese Tang poems. [语法感知] 以上短文中①③的时态都是现在完成时，其主动语态的结构是has/have done，被动语态的结构是has/have been done；②④的时态都是现在完成进行时，其结构是has/have been doing。 一、现在完成进行时的形式 肯定句：have/has been＋现在分词(doing) 否定句：have/has not been＋现在分词(doing) 疑问句：Have/Has＋主语＋been＋现在分词(doing)＋... Our government has been using PSAs to educate people for many years. 多年来，我们的政府一直在用公益广告来教育人们。 She has been not communicating with others verbally for the last four years，except for a few words now and then. 在过去的四年里，她一直没有和他人进行口头交流，除了偶尔蹦出几个词。 Has he been buying and selling since he succeeded to that big fortune，a million dollars 自从他继承了那一百万美元的巨款后，他一直都在做买卖工作吗？ 二、现在完成进行时的用法 1．延续：表示开始于过去的活动持续到现在，并且活动往往还没有结束，将继续持续下去。 —Why，Jack？You look so tired! —Well，I have been painting the house and I must finish the work tomorrow. ———为什么，杰克？你看上去很累啊！ ———对，我一直在粉刷屋子，而且明天必须得刷完。(强调一直在做，并且还将持续) Mary has been going to writing classes every night since June and the course will end this week. 从6月开始，玛丽每天晚上去上写作课，这个课程将于这周结束。(玛丽每晚上写作课的状态从过去持续到未来) 2．重复：到目前为止的一段时间内重复发生的活动。 —Isn’t it hard to drive to downtown to work —Yes，that’s why I have been going to work by train. ———开车去市中心上班难道不麻烦吗？ ———很麻烦，这就是我一直坐火车去上班的原因。(到现在一直坐火车去上班，强调重复性和持续性) Since humankind started gardening，we have been trying to make our environment more beautiful. 自从人类开始搞园艺活动到现在，我们一直都在努力让我们的环境更美丽。(表示到现在一直努力做，强调重复性和持续性) 3．感彩：和进行时 ... ...
~~ 您好，已阅读到文档的结尾了 ~~
