如题所述
be动词后面不能加动词的过去式,应该是动词的过去分词形式,属于被动语态的结构。
be动词意思和用法很多,一般的意思是:是。此种用法有多种变化形式:is、am、are、was、were、being、been、to be。另外be动词还有成为的意思。
根据句子中不同的人称、数和时间,型态,应该选择相应的be动词。
例1、 I was taught by Miss Zhao last year。
翻译:去年,我是由赵老师教的。
例2、 Those letters were wirtten by a famous writer。
翻译:那些信是由一位有名作家写的。
一、被动语态的构成
2、情态动词+be+及物动词的过去分词
二、基本句型
1、肯定句:主语 +be+过去分词+by短语
2、否定句:主语+be+not+过去分词+by短语
3、一般疑问句: Be+主语+ 过去分词+by短语?
4、特殊疑问句:特殊疑问词+be+ 主语 + 过去分词 +by短语?
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第1个回答 推荐于2017-11-26
be动词后面的动词形式有三种可能:
-ing:现在进行时, I'm trying to give you the right answer.
-ed:被动语态, I'm told that you don't know her.
to do:
1.表示按计划或安排要做的事。例如:
When are you to leave for home?你什么时候回家?
They said goodbye, little knowing that they were never to meet again.他们告了别,不知道以后再也不会见面了。
2.表示“应该”,相当于should, ought to。例如:
You are to report to the police.你应该报警。
3.表示“必须”,相当于must, have to。例如:
The letter is to be handed to him in person.这封信必须亲手交给他。
4.表示“想,打算”,相当于intend, want。例如:
If we are to be there before ten, we’ll have to go now.如果我们要在十点前到,我们现在就得走。
5.用于第一人称疑问句,表示征求对方意见。例如:
Am I to go on with the work?要我继续完成这项工作吗?
What are we to do next?我们下一步该怎么办?
6.用于否定句,表示“禁止”,相当于mustn’t。例如:
You are not to smoke in the reading-room.你不可以在阅览室里吸烟。
7.表示“可以,可能”,相当于may, can。例如:
The news is to be found in the evening paper.这条消息可以在晚报上见到。
8.were to do sth.用于if或even if / even though从句中,表示对未来的假设。例如:
If I were to tell you that I killed him, would you believe me?要是我告诉你是我杀了他,你会相信吗?
9.be to blame(该受责备,对某坏事应负责任)与be to let(待出租)两种结构中,用不定式的主动形式表示被动含义。例如:
Which driver is to blame for the accident?这事故是哪个司机的责任?
This house is to let.这房子要出租。
望采纳,谢谢本回答被提问者和网友采纳
-ing:现在进行时, I'm trying to give you the right answer.
-ed:被动语态, I'm told that you don't know her.
to do:
1.表示按计划或安排要做的事。例如:
When are you to leave for home?你什么时候回家?
They said goodbye, little knowing that they were never to meet again.他们告了别,不知道以后再也不会见面了。
2.表示“应该”,相当于should, ought to。例如:
You are to report to the police.你应该报警。
3.表示“必须”,相当于must, have to。例如:
The letter is to be handed to him in person.这封信必须亲手交给他。
4.表示“想,打算”,相当于intend, want。例如:
If we are to be there before ten, we’ll have to go now.如果我们要在十点前到,我们现在就得走。
5.用于第一人称疑问句,表示征求对方意见。例如:
Am I to go on with the work?要我继续完成这项工作吗?
What are we to do next?我们下一步该怎么办?
6.用于否定句,表示“禁止”,相当于mustn’t。例如:
You are not to smoke in the reading-room.你不可以在阅览室里吸烟。
7.表示“可以,可能”,相当于may, can。例如:
The news is to be found in the evening paper.这条消息可以在晚报上见到。
8.were to do sth.用于if或even if / even though从句中,表示对未来的假设。例如:
If I were to tell you that I killed him, would you believe me?要是我告诉你是我杀了他,你会相信吗?
9.be to blame(该受责备,对某坏事应负责任)与be to let(待出租)两种结构中,用不定式的主动形式表示被动含义。例如:
Which driver is to blame for the accident?这事故是哪个司机的责任?
This house is to let.这房子要出租。
望采纳,谢谢本回答被提问者和网友采纳