被動句的重要時態(tài)

①一般現(xiàn)在時/過去時：“be +動詞過去分詞 ”
②完成時態(tài)
A．現(xiàn)在完成時被動語氣：“have been done”
B．過去完成時被動語氣：“had been done”
③一般將來時被動語氣：
即由“shall do”或“will do”變?yōu)椤皊hall be done”或“will be done”。
主動：We shall build several big modern power plants in our city.
被動：Several big modern power plants will be built in our city.
我市將建立幾座大型現(xiàn)代化的發(fā)電廠。
主動：I shall send my second boy to school next September.
被動：My second boy will be sent to school next September.
過年九月我將送我次子去讀書。
主動：They will ask you a lot of strange questions.
被動：You will be asked a lot of strange questions by them.
他們將問你許多怪題。
主動：The Chinese people will make more space explorations in the future.
被動：More space explorations will be made in the future by the Chinese people.
中國人民在未來將進(jìn)行更多的太空探索。
④將來進(jìn)行時：
將來進(jìn)行時無被動，只能是主動形式的shall (will) be doing
We hope your company will soon be sending an engineer over to check this equipment.
我們希望貴公司早些派一名工程師來檢查這臺設(shè)備。
In a few minutes our passenger plane will be flying in the stratosphere.
幾分鐘后我們的客機(jī)將在同溫層中飛行。
We hope scientists will be tapping new energy sources to meet the need for power.
我們希望科學(xué)家們將發(fā)掘新的能源來滿足能量的需要。
What will you be doing this evening?
今晚你將做什么？
⑤現(xiàn)在進(jìn)行時、過去進(jìn)行時
現(xiàn)在進(jìn)行時或過去進(jìn)行時都是“be”的人稱、時和數(shù)的形式加“doing”。而被動態(tài)則是“be”加上“being done”的形式，“being”是不變的。現(xiàn)在進(jìn)行時和過去進(jìn)行時的被動態(tài)是被動態(tài)的重點，容易搞錯。例如：
主動：The workers are repairing the main building of the Northeast Engineering Institute.
被動：The main building of the Northeast Engineering Institute is being repaired by the workers.
工人們正在維修東北工學(xué)院主樓。
The building of another fly-over is being planned.
他們在計劃修建另一座跨線橋。
Two reservoirs are being built at the same time.
兩座水庫同時建造。
The nasty question was being considered by the committee members.
委員會的委員們之前正在考慮那個棘手的問題。

下列情況不用被動語態(tài)

①連系動詞多不用被動句：(feel, sound, taste, smell )
例：The desk feels cold in winter.
課桌在冬天摸上去很冷。（feel是連系動詞）
②不及物動詞：happen=take place/belong to
Many changes have happened to the city.
這個城市，許多改變已經(jīng)發(fā)生。

與被動句搭配的介詞用法

I think these coats are made of wool.
（be made of 由......制成，看得見原材料）
Bread is made from wheat.
（be made from由......制成，看不見原材料）
The trains are made in Beijing.
（in在......地方）
The cakes are made by my mother.
（by被什么人）
These kites are made for the children.
（for為了什么人）
Glass is usually made into bottles.
（into 被制成什么）
Glasses are used for drinking.
（for指用途）
This thing can be used as a desk.
（as作為什么）
It is said that+句子：據(jù)說
It is believed that+句子：據(jù)信
It is thought that+句子：據(jù)認(rèn)為
It is reported that+句子： 據(jù)報道
例：It is said that he has gone to Wuhan.
據(jù)說他已去了武漢。