其谓语动词在人称和数应与被动中的主语保持一致.ppt

被动语态的讲与练 被动语态构成形式 被动语态由“助动词be＋及物动词的过去分词”构成。不及物动词没有被动语态。在不同的时态下助动词be有不同的形式。 —、Practice I ( Active Voice → Passive Voice )1.He plants many trees every year.2.The new couple bought the furniture the other day.3.The experts are discussing the problem at the meeting.4.They were cleaning the classroom when I was there.5.He has read many articles by Lu Xun.6.He had left his keys before he came to my place.7.She will finish the task in a day or two.8.She said that she would finish the task in a day or two. 注意:  转换时,你注意到时态的一致性、人称代词的变化及被动中的谓语动词的单复数问题吗? 被动结构中，由be动词来表示其时态特点；其谓语动词在人称和数应与被动中的主语保持一致。  Practice II ( Passive Voice → Active Voice )1.The program is operated by villagers.2.The matter was solved successfully by her.3.The life of the milu deer is being studied by specialists at present.4.He was being punished for being late by the head teacher. 5.Enough has been said to him about it by us.6.His homework hadn’t been finished when he came back to school.7.The problem will be talked about after the meeting.8.He promised that the problem would be discussed next time. 八种常见时态的被动语态形式:1. 一般现在时 is /am /are + done 2. 一般过去时 was/ were + done3. 现在进行时 is/ am/ are being +done 4. 过去进行时 was/were being +done5. 现在完成时 has/ have been + done 6. 过去完成时 had been + done7. 一般将来时 will/ shall be + done // is/ am/ are going to be + done // is /am/ are to be + done 8. 过去将来时 would / should be + done 现以及物动词tell为例，列表如下：  Practice III ( Fill in the blanks with proper forms of Passive Voice ) 1. If you go on like this, you ____________ (punish) sooner or later. 2. One of the stadiums __________________ (complete) by the end of last year. 3. My best friend stays at home now, for her house ___________ (decorate). 4. About 3,000 English words _____________ (learn) so far. 5. He believed the task _______________ (finish) in two hours. 6. Many trees ______________ (plant) at this time every year. 7. The rest of the work _______________ (finish)