有你的电话。(一般现在时)

　　The railway was built in 1998.

　　这条铁路建于1998年。(一般过去时)

　　A new railway is being built in this city.

　　这个城市正在修建一条新的铁路。(现在进行时)

　　The railway was being built this time last year.

　　去年这个时候这条铁路正在修建。(过去进行时)

　　The new railway has already been built.

　　新铁路已经建成了。(现在完成时)

　　The new railway had been built by the end of last year.

　　这条铁路在去年年底前已经建成了。(过去完成时)

　　A new railway will be built in this city next year.

　　这个城市明年将建一条新的铁路。(一般将来时)

　　He told us that the new railway would be built the next year.

　　他告诉我们新铁路将于第二年建成。(过去将来时)

　　[即时演练1]

　　用所给词的适当形式填空

　　①I was_given (give) a new book on my last birthday.

　　②The room had_been_cleaned (clean) before we came.

　　③The singer is_said (say) to have been accused of taking drugs.

　　④The physics lesson will_be_taught (teach) in the lab tomorrow.

　　⑤The flowers are_being_watered (water) by them now.

语法点三 被动语态的特殊结构形式 　　1.情态动词(may, might, can, could, should, ought to, must)＋be＋过去分词，构成被动语态。

　　Nowadays, solar energy can be used to produce electricity in many countries.

　　现在太阳能在许多国家可以被用来发电。

　　A real sense of achievement and happiness may be felt.

　　一种真正的成就感和幸福感可能被感觉到。

　　The pollution must be stopped.

　　必须停止污染。

　　[即时演练2]

　　句型转换

　　①Teachers can use RealCine in the classroom.

　　→RealCine can be used in the classroom by teachers.

　　②You should pay more attention to your table manners.

　　2．使役动词和感官动词的被动语态

　　(1)在使役动词have, make, get以及感官动词 see, watch, notice, hear, feel, observe等后面不定式作宾语补足语时，在主动结构中不定式 to 要省略，但变为被动结构时，要加to。 get, leave, cause 等使役动词的宾语补足语是带 to 的不定式，变为被动语态时该不定式不变。

　　My father made me stay up late to finish my homework.(主动)

　　 I was made to stay up late to finish my homework by my father. (被动)

　　[即时演练3]

　　句型转换

　　①I didn't notice her enter the office.

　　→She wasn't noticed to enter the office.

　　②Someone saw a stranger walk into the building.

　　→A stranger was_seen to walk into the building.

　　(2)有些动词可以有两个宾语，在用于被动结构时，可以把主动结构中的一个宾语变为主语，另一宾语仍然保留在谓语后面。通常变为主语的是间接宾语。

His mother gave him a present for his birthday.