大家知道,谓语的动词用来表示动作(情况)发生时间的各种形式称为时态。
现在进行时表示:1、现在(说话的瞬间)正在进行或发生的动作,强调“此时此刻。E.g. He is reading . They are talking now.
2、当前一段时间内的活动或现阶段正在进行的动作。E.g. They are working these days.
3、某些动词的现在进行时,表预定的计划或即将发生的动作。E.g I am coming.
其结构为be+现在分词. 现在分词的变法有:
1、一般在动词词尾加上-ing , E.g. jump
2、以不发音字母e结尾的动词,先去e,再加-ing. E.g have write
3、.以重读闭音节末尾只有一个辅音字母结尾的词,它前面是单个元音字母时要先将词尾的辅音字母双写,再加上-ing. E.g. sit put
其句式变换都在be上做文章。
E.g. He is buying a bike.
Is he buying a bike?
He isn’t buying a bike.
一般由look,listen,now, at this moment等时间状语做标志。
上一篇: 过去进行时语法知识要点
下一篇: 一般过去时的语法知识要点
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