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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... 2024-04-110635.31 KB28页
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