初中英语被动语态讲解及练习(附答案)

英语各时态被动语态详解及练习附答案 被动语态讲解 时态 被动语态结构 一般现在时  am/is/are done 一般过去时  was/were done 现在进行时  am/is/are being done 过去进行时  was/were being done 一般将来时   shall/will/be going to be done 过去将来时  Would be done 现在完成时  have/has been done 过去完成时  had been done 　 被动语态习题 　　1. If city noises ____ from increasing，people ____ shout to be heard even at dinner． 　　A． are not kept；will have to　　B． are not kept；have 　　C． do not keep；will have to　　D． do not keep；have to 　　2. The fifth generation computers, with artificial intelligence, are ____and perfected now. 　　A. developed　 　 B. have developed 　　C. are being developed　　D. will have been developed 　　3. --- ____ the sports meet might be put off． 　 　--- Yes，it all depends on the weather． 　　A． I've been told B． I've told　C． I'm told D． I told 　　4. I need one more stamp before my collection ___. 　　A. has completed B. completes　C. has been completed D. is completed 　　5. Rainforests ___ and burned at such a speed that they will disappear fro