初中英语语法非谓语动词ppt课件.ppt

文档介绍：icwasnotdecidedyet.(包头)AhavingBtohaveChaveDhad2Ioftenhavehamburgersforlunch.(芜湖)-----You’’!Youalwaysdowhatyoucan____me.(江西).(昭通),butyesterdayhewasmade_______byhisbrother.(三亚)Acry,,ry,,tocry6Doyouknowwhyheleftsoearly?(绍兴)-----_____fortheEnglishtest,(1)基本形式:to+动词原形(在某些情况下可以不带to)(2)特点:(被动语态的形式为tobe+动词过去分词)(3)用法:A、作主语,如Tolearnaforeignlanguageisnoteasy.=It’:不定式短语作主语如果太长,常用it作形式主语,将不定式后置。除动词be外,、作表语,、动词+todo动词+it(形式宾语)+宾补+todo常用的词有:want,wouldlike,hope,decide,prefer,等动词不定式和疑问词连用Wehaven’tdecidedwhentoleave..+宾语+,want,ask,order,teach,invite,wish,help,encourage等词动词+宾语+do(不带to的不定式)注:常用的动词是:感官动词see,hear,feel,watch,notice;使役动词have,make,let.