把下列单词连成被动语态的句子1.this ,can't ,do ,machine 2.you bike ,must ,not ,put ,here还有she ,not see,you,yesterday和parents,shouldn't,too strict,teenagers

把下列单词连成被动语态的句子1.this ,can't ,do ,machine 2.you bike ,must ,not ,put ,here还有she ,not see,you,yesterday和parents,shouldn't,too strict,teenagers
把下列单词连成被动语态的句子1.this ,can't ,do ,machine 2.you bike ,must ,not ,put ,here
还有she ,not see,you,yesterday
和parents,shouldn't,too strict,teenagers

把下列单词连成被动语态的句子1.this ,can't ,do ,machine 2.you bike ,must ,not ,put ,here还有she ,not see,you,yesterday和parents,shouldn't,too strict,teenagers
主语 + 情态动词 + be动词 + 动词过去分词
This machine can't be done
Your bike must not put here
She didn't see you yesterday.
Parents shouldn't be too strict with teenagers
公式：be+动词的过去分词
应用范围：表示被动的情况,一般是及物动词有被动语态,切记不及物动词与一些固定词组是没有被动语态的.例如：happen, take place
英语的语态是通过动词形式的变化表现出来的.英语中有两种语态：主动语态和被动语态.
主动语态表示主语是动作的执行者.巧记为：主动、主动、主去动.
例如：Many people speak English.
谓语：speak的动作是由主语many people来执行的.
被动语态表示主语是动作的承受者,即行为动作的对象.巧记为：被动、被动、主被动.例如：English is spoken by many people.主语English是动词speak的承受者.
主动态和被动态指的是动词形式,是词法概念；而主动句和被动句则指的是句子结构,从而是句法概念.所谓主动句就是由主动态动词(词组)作谓语动词的句子,而被动句则是由被动态动词(词组)作谓语动词的句子.
例如：He opened the door.他开了门.(主动句)
歌诀：谁做的动作不知道,说出谁做的没有必要；
主动语态变被动语态的方法
(1)把主动语态的宾语变为被动语态的主语.
(2)把谓语变成被动结构(be＋过去分词)
(根据被动语态句子里的主语的人称和数,以及原来主动语态句子中动词的时态来决定be的形式).
(3)把主动语态中的主语放在介词by之后作宾语,将主格改为宾格.例如：
All the people laughed at him.
He was laughed at by all people.
They make the bikes in the factory.
The bikes are madeby themin the factory.
歌诀是：宾变主,主变宾,by短语后面跟.
谓语动词变被动,be后“过分”来使用.
The door was opened.门被开了.(被动句)
二、被动语态的构成
被动语态由“助动词be＋及物动词的过去分词”构成.人称、数和时态的变化是通过be的变化表现出来的.现以teach为例说明被动语态在各种时态中的构成.
被动语态的用法
(1)不知道或没有必要说明动作的执行者是谁.
例如：
Some new computers were stolen last night.
一些新电脑在昨晚被盗了.(不知道电脑是谁偷的)
This book was published in 1981.这本书出版于1981年.
(2)强调动作的承受者,而不强调动作的执行者.
例如：the window was broken by Mike.窗户是迈克打破的.
This book was written by him.这本书是他写的.
Eight hours per day for sleep must be guaranteed.每天8小时睡眠必须得到保证.

1.this machine can''t be done.
2.your bike must not be put here.
3.she didn't see you yesterday.
4.parents shouldn't be too strict with teenagers.

This machine can't be done
Your bike must not put here
She didn't see you yesterday.
Parents shouldn't be too strict with teenagers
谢谢