被动语态的判断方法及其构成

被动语态的判断方法及其构成英语的语态有主动语态和被动语态两种。当主语是动作的执行者时，用主动语态；主语是动作的承受者时，即谓语动词与主语在逻辑上有“动宾关系”时，用被动语态。被动语态一般由“助动词be＋过去分词”构成，其中be有时态、人称和数的变化。如：1. Visitors ________ not to touch the exhibits. (全国卷)A. will requestB. request C. are requestingD. are requested【分析】答案选D。visitors是request这个动作的承受者，即request与visitors是动宾关系，要用被动语态，应由“be+过去分词”构成，只有D符合。2. In some parts of the world, tea ________ with milk and sugar. (全国卷)A. is servingB. is served C. serves D. served【分析】答案选B。tea是serve这个动作的承受者，即serve与tea是动宾关系，用被动语态，被动语态就应由be与serve的过去分词构成，只有B正确。3. according to the art dealer, the painting ________ to go for at least a million dollars. (四川卷)A. is expectedB. expectsC. expected D. is expecting【分析】答案选A。the painting是expect (预料、估计)这个动作的承受者，即expect与the painting是动宾关系，要用被动语态，只有A正确。4. I ________ ten minutes to decide whether I should reject the offer. (全国卷)A. gave B. was given C. was givingD. had given【分析】答案选B。I是give这个动作的承受者，即give与I是动宾关系，选B。5. All the employees except the manager ________ to work online at home. (广东卷)A. encouragesB. encourage C. is encouragedD. are encouraged【分析】答案选D。all the employees是encourage的承受者，要用被动语态，排除A和B。句子的主语是all the employees，而不是the manager，排除C。6. A library with five thousand books ________ to the nation as a gift. (全国卷)A. is offered B. has offered C. are offeredD. have offered【分析】答案选A。a library是offer的承受者，要用被动语态；又因主语(library)是单数，只有A正确。with five thousand books是a library是定语。 说明:引用此文请注明出处,并请保留该文章链接地址,谢谢~~