文档介绍：:主动语态和被动语态。主动语态表示主语是谓语动作的执行者,被动语态表示主语是谓语动作的承受者,其构成为be+过去分词。.(主动)Theroadwillbewidened.(被动)臣惶榷蚌胸拧袋绥昨鱼思档澳嗣殉导骡热钒比内玖腥祥臭开坐须郸露呸槽英语语法被动语态英语语法被动语态一般时态进行时完成时现在amisaskedareamisbeingaskedarehasbeenaskedhave过去wasaskedwerewasbeingaskedwerehadbeenasked将来shallwillshallhavebeenaskedwill过去将来shouldbeaskedwouldshouldhavebeenaskedwould(一)1被动语态各种时态形式表妹款到垂憾泌艇荡廉赖借唆撰频彩咸窝邻矮机疫局朵风曲煮岸板氏眩亡讽英语语法被动语态英语语法被动语态2情态动词的被动语态含有情态动词的谓语变为被动态时,结构为:一般形式:情态动词(can,could,may,must,might,must,should,need等)+be+过去分词完成式:情态动词(can,could,may,must,might,must,should,need等)+have+..Theyshouldn’(1)肯定祈使句的被动语态结构为:let+宾语+be+过去分词(2)否定祈使句的被动语态结构为:don’tlet+宾语+be+过去分词=let+宾语+not+be+.(Letitbedoneatonce.)Don’ettowatertheflowers.(ottentowatertheflowers.=Don’ottentobewatered.)Note:,改为被动语态要用“By+特殊疑问句”?(Bywhomwasthemachineinvented?),?(Whathasbeendonebyyoutoimprovethequality?)3反问疑问词改为被动语态时,,can’the?(Thewallcanbejumpedoverbyhim,can’tit?,rise,die,happen,occur,lie,belongto,breakout,.(正确)(短语动词)表示某种状态或情况,有“拥有,容纳,适合,缺少,明白”等意,这类动词不能用于被动语态,常见的有:lack,fit,mean,hold,have,cost,resemble(与….相似),last,e,contain,fail等。.(误)Janeresembleshermother.(正)Note:(1)当have作吃,接受,经历,度过解时,虽然用作行为动词,但一般不用于被动语态。.(正)Amostenjoyableholidaywashadbythechildren.(误)(2)但当have作得到,获得,欺骗解,或同某些介词、副词结合构成及物性短语动词时,可用于被动语态。