① 英语 语法 主动语态变被动语态 速度
we should eat more vegetables every day 主动语态变被专动属语态。he should not allow you to swim in the water 主动变被动
more vegetables should be eaten by us every day you should not be allowed to swim in the water by him.
② 将一个英语句子改为被动语态怎样改，有
主动语态→被动语态：
1、找到该句宾语（必须是在谓语动词后的）,将它提到句子开头.
2、用被动语态结构be+Vt过去分词构成句子.
3、把原句的主语用by构成的介词短语带出,也可不加.
eg：I finished my homework yesterday.
→My homework was finished (by me) yesterday.
特殊形式：
1、部分Vi加上适当介词可当作Vt构成被动语态.
eg：Parents look after their children carefully.
→Children were looked after (by parents) carefully.
2、联系动词没有被动语态.eg：The water feels warm.
3、在主动语态中一些省略to的动词不定式改为被动语态时需加上to.
eg：Teachers often make him stand outside.
→He is often made to stand outside (by teachers).
4、have、let等动词无被动语态.
必要时,have可改为held,let sb to do sth可改为be allowed to do sth (被允许做某事）.
③ 关于英语语法中的主动和被动
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
④ 英语主动变被动语态
主动句：My father wrote the book．我父亲写了这本书。被动句：The book was written by my father．这本书是我父亲写的
主动句：Our village has built a plastic factory．我们村已经建了一座塑料厂。
被动句：A plastic factory has been built in our village．一座塑料厂在我们村建成了。
主动句：He gave me a dictionary．他给了我一本词典。
被动句：I was given a dictionary by him．
被动句：A dictionary was given（to）me by him．词典是他给我的。
主动句：He teaches us English．他教我们英语。
被动句：We are taught English by him．
被动句：English is taught（to）us by him．英语是他教我们的。
主动句：We made him our group leader．我们让他当了我们组长。
被动句：He was made our group leader．他被选为我们的组长。
主动句：They chose Mr．Li their doctor in 1987．1987年他们选李先生当他的医生。
⑤ 将英语的主动语态改为被动语态。
I'm told to wait here for him.
This kind of watches aren't made in Beijing.
Tea is planted in China.
All the exercises must be done by me?
⑥ 英语主动语态怎么改成被动语态
主语和宾语换个位置 动词前面加be动词 动词变成被动形式（通常后面加ed）
如果主语是动作的承受者,或者是说动作不是由主语而是由其他人完成的,则用被动语态.主动语态→被动语态：
1、找到该句宾语（必须是在谓语动词后的）,将它提到句子开头.
2、用被动语态结构be+Vt过去分词构成句子.
3、把原句的主语用by构成的介词短语带出,也可不加.
eg：I finished my homework yesterday.
→My homework was finished (by me) yesterday.
特殊形式：
1、部分Vi加上适当介词可当作Vt构成被动语态.
eg：Parents look after their children carefully.
→Children were looked after (by parents) carefully.
2、联系动词没有被动语态.eg：The water feels warm.
3、在主动语态中一些省略to的动词不定式改为被动语态时需加上to.
eg：Teachers often make him stand outside.
→He is often made to stand outside (by teachers).
4、have、let等动词无被动语态.
必要时,have可改为held,let sb to do sth可改为be allowed to do sth (被允许做某事）.
⑦ 如何将英文中的主动语态变成被动语态（语法）
例子：They call the police.
The police is called (by them).
⑧ 英语主动语态变被动语态例句
主动句：My father wrote the book．我父亲写了这本书。
被动句：The book was written by my father．这本书是我父亲写的
主动句：Our village has built a plastic factory．我们村已经建了一座塑料厂。
被动句：A plastic factory has been built in our village．一座塑料厂在我们村建成了。
主动句：He gave me a dictionary．他给了我一本词典。
被动句：I was given a dictionary by him．
被动句：A dictionary was given（to）me by him．词典是他给我的。
主动句：He teaches us English．他教我们英语。
被动句：We are taught English by him．
被动句：English is taught（to）us by him．英语是他教我们的。
主动句：We made him our group leader．我们让他当了我们组长。
被动句：He was made our group leader．他被选为我们的组长。
主动句：They chose Mr．Li their doctor in 1987．1987年他们选李先生当他的医生。
被动句：Mr．Li was chosen their doctor in 1987．1987年李先生被选为他们的医生。
主动句：We saw him enter the classroom．我们看见他进了教室。
被动句：He was seen to enter the classroom．他被看见走进了教室。
主动句：He made the boy sit down．他使那孩子坐下。
被动句：The boy was made to sit down．那孩子被迫坐下。
被动式谓语时，它们原来所带的介词或副词应保留下来。例如：
主动句：She often looks after the children．她常照顾孩子。
被动句：The children are often looked after．孩子常受到照顾。
主动句：We talked about the matter very often．我们常谈起那事。
被动句：The matter was very often talked about．这事常被谈起。
主动句：She has taken my exercise-books away．她已拿走了我练习本。
被动句：My exercise-books have been taken away．我的练习本被拿走了。
主动句：You must turn off the light before you go to bed．睡觉之前你们必须关灯。
⑨ 英语中，主动语态怎样变为被动语态
主动语态是：主谓宾
被动语态是：宾谓主
1。宾语提前放在了主语的位置要由宾格变成主内格，有些宾容语是名词就没有宾主格之分了。
2。谓语变成被动语态，其形式是be done
3。主语变成了宾语，要由主格变成宾格。
例：I love her!
变成被动语态是：She is loved by me!
⑩ 英语的被动语态和主动语态怎么转换
主动语态和被动语态 1 ．在英语中，动词有两种语态，即主动语态（ The Active Voice ）和被动语态。（ The Passive Voice ）。主动语态表示主语是动作的执行者，被动语态表示主语是动作的承受者。实际上被动语态的主语是由主动语态的谓语动词的宾语转变而来的，因此这个谓语动词必须是及物动词。被动语态是由助动词 be + 过去分词构成，当然，被动语态也有多种时态，它的时态变化都体现在助动词 be 上，后面的过去分词不变。被动语态的谓语动词的执行者可由 by 引出，往往放在句末。如不强调动作的执行者时，可省略不用。 例如： Many people speak English. （主动语态） English is spoken by many people. （被动语态） 2 ．一般现在时被动语态的构成：当谓语是一般现在时的时候，被动语态由“ be (am, is, are) + 及物动词的过去分词”构成。助动词“ be ”随人称、数的变化而改变。例如： This knife is made of wood and metal. Bananas are proced in Hainan. I am taken care of by my uncle. 3 ．被动语态的用法：当说话者不知道动作的执行者或没有必要指出动作的执行者时，只需要强调动作的承受者，要求使用被动语态。如果需要在被动语态中指出动作的执行者时由介词 by 引导。 Chinese is spoken by the largest number of people in the world. 中文是全世界被最多人口所讲的语言。 4 ．主动语态改写成被动语态的方法：将主动语态的宾语变成主语，将主动语态的谓语变成被动式 be + 过去分词，主动语态的主语变成被动语态句中 by 的宾语（或省略）。如果主动语态中有两个宾语（直接宾语或间接宾语），可以把其中任意一个变成被动语态的主语。例如： Most middle school students play football. 主语 谓语 宾语 Football is played by most middle school students. My teacher gives me a lot of book. （主动语态） 主语 谓语 间宾 直宾 被动语态： I am given a lost of books by my teacher. 被动语态： A lot of books are given to me by my teacher. 5 ．被动语态的疑问形式： 被动语态的疑问句形式是在肯定句的基础上，把 be 动词提到句首，句末加问号构成的。如： Is the kite made by Xiao Ming? 这个风筝是小明做的吗？ 其肯定回答和否定回答分别为： Yes, it is. 是的，它是。 No, it isn ' t. 不，不是。 6 ．被动语态的否定形式： 被动语态的否定形式是在肯定句中的系动词后加 not 构成的。例如： The cake isn ' t made by his mother. 蛋糕不是他妈妈做的。