作业帮被动语态中动词过去分词基本构成怎样
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被动语态中动词过去分词基本构成怎样
被动语态中动词过去分词基本构成怎样
被动语态中动词过去分词基本构成怎样
英语中及物动词有两种语态,即主动语态和被动语态.主动语态表示主语是动作的执行者被动语态表示主语是动作的承受者.被动语态由“助动词be+及物动词的过去分词”构成.助动词be有人称、时态和数的变化.一、被动语态的用法：1.一般现在时的被动语态构成：is / am / are + 及物动词的过去分词 Our classroom is cleaned everyday.I am asked to study hard.Knives are used for cutting things.2.一般过去时的被动语态构成：was / were + 及物动词的过去分词 A new shop was built last year.Dinosaur eggs were laid long long ago.3.现在完成时的被动语态构成：has / have + been + 及物动词的过去分词 This book has been translated into many languages.Many man-made satellites have been sent up into space by many countries.4.一般将来时的被动语态构成：will+ be + 及物动词的过去分词 A new hospital will be built in our city.Many more trees will be planted next year.5.含有情态动词的被动语态构成：情态动词+ be + 及物动词的过去分词 Young trees must be watered often.Your mistakes should be corrected right now.The door may be locked inside.Your homework can be handed in tomorrow.6.现在进行时的被动语态构成：am / is / are + being + 及物动词的过去分词 Uncle Wang is mending my bike now.→ My bike is being repaired by Tom now.They are planting trees over there.→ Trees are being planted over there by them.7.不定式的被动语态：to + be + 及物动词的过去分词 There are two books to be read.→ There are twenty more trees to be planted 追问：动词的 过去分词 呢 追问：