含情态动词的被动语态

1、含情态动词的被动语态【考点链接】1 Some of the plastic bags cant after June 1 一Yes, people will use environmental bags insteadA. useB. be useC. be usedD are used2. There is a lot of wind in North China.Well, more trees every year to stop the windA. must be planted B can plantedC should planted【结构】情态动词（should/can/mus

2、t/may/could等）+ be +及物动词的过去分 词【句式】1. 否定句式：主语+情态动词+not be +及物动词的过去分词。如：The word couldnt be used this way.2. 一般疑问句式：情态动词+主语+be+及物动词的过去分词。如：Should the letter be finished today?Yes, it should /No, it shouldn【跟踪练习】根据要求完成句子。1. Teenagers should be allowed to play with friends at night.（改为否定句）Teenagersto pla

3、y with friends at night2. The flowers must be watered once a day.（改为一般疑问句） the flowersonce a day?3. Should the classroom be cleaned on time?（作肯定回答）9 4. Parents should allow children to choose their clothes.（改为被动语态）Childrento choose their clothes.5. The young tree can be planted now.（改为主动语态）Wethe you

4、ng tree now.1/21/21/2各种时态的被动语态八大时态的被动语态的构成：1一般现在时的被动语态构成：(am/is/are +done)如：I am asked to study hard.我被请求努力学习。This shirt is washed once a week.这件 T 恤一周洗一次。These songs are usually sung by boys.这些歌曲通常是男生唱的。2. 般过去时的被动语态构成：(was/were done)如：The soldier was killed, but the train was saved.这位战士牺牲了，然而列车得救 T

5、oSome notes were passed up to the speaker.有人给讲演者递上来一些纸条。3. 一般将来时的被动语态构成：(shall/will be done)如：We shall be asked a lot of strange questions.我们将被问许多怪题。My son will be sent to school next September.来年九月我将送我儿子去读书。4. 过去将来时的被动语态构成：(should/would be done)如：The news would be sent to him as soon as it arrived.

6、消息一到就会转给他的。He told us that the new railway would be built the next year.他告诉我新铁路将 在明年修建。5. 现在完成时的被动语态构成：(has/have been done)如：The work has just been finished. I】作刚刚结束。The old rules have been done away with by us. IH规章已经被我们废除了 6. 过去完成时的被动语态构成：(had been done)如：By last December three ships had been buil

7、t by them.到去年十.：月底他们已建 造了三艘船。100 tractors had been produced by the end of last year.在去年年底前生产 100 辆拖拉机。7. 现在进行时的被动语态构成：(am/is/are being done)如：The bridge is being repaired.桥梁正在修复中。The new library is being built by the workers.新的图书馆正在被工人们建设中。8. 过去进行时的被动语态构成：(was/were being done)如：A meeting was being held