出国留学网英语栏目为大家提供“关于主动句变被动句英语语法解析”，希望对大家有所帮助。
主动句变被动句
第一种是时态不能改变;第二种是变为被动语态后，谓语动词要和被动语态的主语在人称、数上保持一致。还要作如下变动：把主动语态的宾语变为被动语态的主语;主动语态的主语放在by的后面，组成介词短语，再把这个介词短语放在被动语态的谓语动词之后。在动作的执行者无须说明或不必要强调时，by短语可以省略。例如：
They will open a new supermarket there soon. 他们很快将在那里开办个新超市。
A new supermarket will be opened there soon. 一个新超市不久将在那里开办。
Somebody has warned us to be careful of rats. 有人警告我们要当心老鼠。
We have been warned to be careful of rats. 我们受到警告，要当心老鼠。
The doctor gave two lectures in English. 那位医生用英语讲了两次课。
Two lectures were given by the doctor in English. 由那位医生用英语讲了两次课。
如果主动语态有两个宾语(直接宾语和间接宾语)，变为被动语态时，可将其中任何一个宾语变为主语，另一个不变。但较常见的是将间接宾语变为被动语态的主语。
We have given him a job. 我们已给了他一个工作。
He has been given a job. (变间接宾语为主语)
A job has been given (to) him. (变直接宾语为主语)
被动语态
1、make, watch, see, notice, hear, feel等使役动词和感官动词的宾语后面可以接不带to的不定式作宾补。但在被动语态中，不定式符号to必须补上。例如：
I heard him say good-bye to his friends. 我听见他向他的朋友说再见。
He was heard to say good-bye to his friends. 有人听到他向他的朋友说再见。
2、有些动词形式上是主动，意义上是被动。例如:
My pen writes well. 我的钢笔好使。
The library doesn’t open on Sunday. 图书馆星期天不开放。
School begins in September. 学校九月份开学。
The door will not shut/lock. 门关/锁不上。
The dictionary sells well. 这词典销路很好。
3、“have/get+宾语+过去分词”这个句型也表达了一种被动的意思。如：
I bought these books at a discount and had two hundred dollars saved. 我打折买了这些书，省了两百美元。
I’ll have the bike repaired in no time. 我一会就把自行车修好。
I had my wallet stolen/lost last Sunday when I was shopping. 上星期天买东西的时候我的钱夹被盗。
4、除助动词be外，动词get有时也可跟过去分词构成被动语态，是比较口语化的一种被动语态。这种结构中很少用by短语。例如:
His car got damaged in a road accident. 他的车在交通事故中被毁了。
In the end this story got translated into English. 这故事最后被译成了英文。
5、在need, want, require后面，主动的-ing形式表达被动的意思：
Your garden needs watering. (=…to be watered) 你的花园需要浇水。
Does your suit require pressing, sir? 先生，您的衣服要烫吗?
My watch needs cleaning. (=…needs to be cleaned) 我的表需要清洗。
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