目前进行时构成:•必然式构造:主语+be+动词ing•Mymotherissweepingthefloor.否认句:Mymotherisnot(isn’t)sweepingthefloo一般疑问句:Ismymothersweepingthefloor?Yes,sheis./No,sheisn’t.第1页动词目前分词构成:①一般状况下,直接加–ing;Eg:working,buying,visiting,reading,thinking,eating,drinking.②以不发音e结尾,去e加-ing;Eg:taking,having,making,writing.第2页③以重读闭音节结尾,双写结尾辅音字母加-in...