英語基礎知識中被動語態特點和用法

學習英語要從基礎開始入門，在學習的過程中掌握學習方法可以有效提高學習效率。下面，我給大家整理了英語基礎入門需要掌握的被動語態的特點和用法，大家可以作為學習的參考。,壹、被動語態的構成形式,1. 被動語態的基本時態變化,被動語態通常為十種時態的被動形式, 被動語態由be+過去分詞構成，be隨時態的變化而變化。以do為例，各種時態的被動語態形式為：,1) am/is/are +done (過去分詞) 壹般現在時,例Visitors are requested not to touch the exhibits.,2) has /have been done 現在完成時,例All the preparations for the task have been pleted, and we're ready to start.,3) am/is /are being done 現在進行時,例A new cinema is being built here.,4) was/were done 壹般過去時,例I was given ten minutes to decide whether I should reject the offer.,5) had been done 過去完成時,例 By the end of last year, another new gymnasium had been pleted in Beijing.,6) was/were being done 過去進行時,例A meeting was being held when I was there.,7) shall/will be done 壹般將來時,例Hundreds of jobs will be lost if the factory closes.,8) should/would be done 過去將來時,例The news would be sent to the soldier's mother as soon as it arrived.,9) shall/will have been done 將來完成時(少用),例The project will have been pleted before July.,2. 被動語態的特殊結構形式,1)帶情態動詞的被動結構。其形式為：情態動詞+be+過去分詞。,例The baby should be taken good care of by the baby-sitter.,2) 有些動詞可以有兩個賓語，在用於被動結構時，可以把主動結構中的壹個賓語變為主語，另壹賓語仍然保留在謂語後面。通常變為主語的是間接賓語。,例His mother gave him a present for his birthday. 可改為 He was given a present by his mother for his birthday.,3) 當“動詞+賓語+賓語補足語”結構變為被動語態時，將賓語變為被動結構中的主語，其余不動。,例Someone caught the boy *** oking a cigarette. 可改為The boy was caught *** oking a cigarette.,4)在使役動詞have, make, get以及感官動詞see, watch, notice, hear, feel, observe等後面不定式作賓語補語時，在主動結構中不定式to要省略，但變為被動結構時，要加to。,例Someone saw a stranger walk into the building. 可改為A stranger was seen to walk into the building.,5) 有些相當於及物動詞的動詞詞組，如“動詞+介詞”，“動詞+副詞”等，也可以用於被動結構，但要把它們看作壹個整體，不能分開。其中的介詞或副詞也不能省略。,例The meeting is to be put off till Friday.,3. 非謂語動詞的被動語態,v.+ing 形式及不定式 to do 也有被動語態(壹般時態和完成時態) 。,例I don't like being laughed at in the public.,學習英語的方法有很多，只要掌握了適合自己的方法，英語學習並沒有想象中的難。在這裏，我給大家推薦網，這是壹個專業的英語學習平臺，網上面有很多針對英語基礎學習的方法和資訊，對大家學習英語能起到很大的幫助。