需要被动语态的语法和虚拟语气的语法！！

被动语态
由 be+过去分词 构成，时态由be的各种形式表现出来 ：
1.一般现在时：
What is it called ? 它叫什么名字？
Oranges are grown on these hills .这些小山上种有橘子树。
2.一般过去时：
He was born in Shanghai . 他是在上海出生的。
They were pleased by these words . 听了这些话他们很高兴。
3.一般将来时：
Who will be sent to work there ? 将派谁去那里工作？
Shall we be invitde to the party ? 要邀请我们参加晚吗？
4.现在进行时：
The case is being investigated.这案子正在调查。
These problems are being discussed.这些问题正在讨论。
5.现在完成时：
It has been translated into many languages.这书被译成了许多语言。
Has anybody been hurt?有谁受伤了吗？
6.过去进行时：
The road was then being widened.那时路正在加宽。
A party was being held in the next room.隔壁房间正在开舞会。
7.过去完成时：
He said that the meeting had been postponde.他说会议延期了。
I didn't know he had been fired.我不知道他被解雇了。

条件句
一种是真实条件句，表示一个可能出现的情况：
I'll help him if he asks me.如果他向我提出，我可以帮助他。

另一种是虚拟条件句，表示一种假象的情况或实现的可能性不大的情况。
这种句子是虚拟语气条件句。
1.谈过去的情况：条件从句（had+