一、结构:现在完成时被动语态的结构就是现在完成时态和被动语态结构的叠合,即"have+been+动词过去分词"。
二、用法:现在完成时被动语态结构常用于以下两种情况:
(1)主谓关系被动,而且谓语动作从过去一直延续到现在;
(2)主谓关系被动,而且谓语动作发生在过去,但已对现在造成影响或结果。
三、现在完成时主动句和被动句之间的转换:如果要将现在完成时的主动句转换成被动句,则要把其宾语变为主语,谓语动词变为被动结构,主语变为由介词引导的状语或直接将其省略;反之,如果要把被动句变为主动句,则恢复其原来的主语,谓语动词套用主动结构。
[例句] He is reading a newspaper now.
2. 表示当前一段时间内的活动或现阶段正在进行的动作 (说话时动作不一定正在进行)。
[例句] What are you doing these days?
3. 表示说话人现在对主语的行为表示赞叹或厌恶等, 常与always, constantly, continually等副词连用。
[例句] He is always thinking of others.
4. 表示在最近按计划或安排要进行的动作。常限于go, come, leave, start, arrive等表“移动”、“方向”的词。
[例句] He is coming to see me next week.
1.概念:立足于过去某一时刻,从过去看将来,常用于宾语从句中。
2.时间状语:The next day (morning, year…),the following month(week…),etc.
3.基本结构:主语+was/were +going to + do+其它;主语+would/should + do+其它
4.否定形式:主语+was/were+not + going to + do; 主语+would/should + not + do.
5.一般疑问句:was或were放于句首;would/should 提到句首。
6.例句:He said he would go to Beijing the next day.他说他第二天要去北京。
I asked who was going there.我问,谁要去那里。
三者均可表示“(经过周折、等待、耽误)最后,终于”之意。
不同的是:
finally 一般用在句中动词前面,而 at last 与 in the end 的位臵则较为灵活;
三者中at last 语气最为强烈,且可单独作为感叹句使用。
After putting it off three times, we finally managed to have a holiday in Dalian.
At last he knew the meaning of life.
At last! Where on earth have you been?
But in the end he gave in.
另外,finally还可用在列举事项时,引出最后一个内容,相当于lastly。
Firstly, we should make a plan; secondly, we should carry it out; finally we should make a conclu- sion.
①当feel、look、smell、taste、sound等后面接形容词时;当cut、read、sell、wear、write等词带状语修饰语时;当动词表示“开始、结束、关、停、转、启动”等意义时。
This kind of cloth washes easily.这种布易洗。
These novels won’t sell well.这些小说不畅销。
My pen writes smoothly.我的钢笔写起来很流畅。
The door won’t lock.门锁不上。
The fish smells good.鱼闻起来香。
②当break out、take place、shut off、turn off、work out等动词表示“发生、关闭、制定”等意思时。
The plan worked out successfully.
The lamps on the wall turn off.
③want, require, need后面的动名词用主动表示被动含义。
④be worth doing用主动形式表示被动含义。
⑤在“be +形容词+ to do”中,不定式的逻辑宾语是句子的主语,用主动代被动。
This kind of water isn’t fit to drink.
The girl isn’t easy to get along with.
另外:be to blame(受谴责),be to rent(出租)也用主动形式表被动。