Module4Carnival复习被动语态语境自主领悟先观察原句后自主感悟1
Today,carnivalinVeniceiscelebratedforfivedaysinFebruary
Iftheybrokethelaws,theywereputintoprisonforuptotwoyears
Thepartywillbeheldinfivedays
Twohundredtreeshavebeenplantedsincethemancamehere
句1用了一般现在时的被动语态,其构成为“am/is/are+过去分词”
句2用了一般过去时的被动语态,其构成为“was/were+过去分词”
句3用了一般将来时的被动语态,其构成为“will/shall+be+过去分词”
句4用了现在完成时的被动语态,其构成为“have/has+been+过去分词”
一、被动语态的基本时态变化1.各种时态被动语态的构成被动语态由助动词be和及物动词的过去分词构成
被动语态可用于各种时态,其时态变化通过助动词be的不同形式来体现
时态动词的被动形式例句一般现在时am/is/aredoneEnglishistaughtinmostschools
一般过去时was/weredoneTheletterwastypedonthecomputer
一般将来时shall/willbedoneTheproblemwillbediscussedtomorrow
现在进行时am/is/arebeingdoneThebridgeisbeingbuilt
过去进行时was/werebeingdoneAtthattimethedeskwasbeingrepaired
现在完成时have/hasbeendoneThehousehasbeenbuilt
过去完成时hadbeendoneThe