现在进行时专项复习一、现在进行时的定义，构成，标志性词语定义：表示现在或现阶段正在进行或发生的动作或存在的状态。构成：由be(am/is/are)+动词-ing形式构成 标志性词语：1.现在进行时.通常用“now” “look” “listen” “at the (this) moment”. eg: I am doing my homework now.eg: Look! My mother is running!eg: Listen! They are reading.eg: At the (this) moment, he is only weeping.二、动词现在分词的构成规则1 一般情况下直接加ing think-thinking sleep-sleeping study-studying speak-speaking say-saying carry-carrying wake-waking 2 以不发音的字母e结尾的单词,去掉字母e，再加in
