关于被动语态的问题He doesn't use keyboards to type information into the computer.怎么改成被动语态?以后遇到类似的句子,又该怎么改呢?

关于被动语态的问题He doesn't use keyboards to type information into the computer.怎么改成被动语态?以后遇到类似的句子,又该怎么改呢?
关于被动语态的问题
He doesn't use keyboards to type information into the computer.
怎么改成被动语态?
以后遇到类似的句子,又该怎么改呢?

关于被动语态的问题He doesn't use keyboards to type information into the computer.怎么改成被动语态?以后遇到类似的句子,又该怎么改呢?
The keyborads were not used to type information into the computer by him.
被动语态的基本结构是主语+be+过去分词
这里是过去时,所以就用were

改成：The keyborads were not used to type information into the computer by him.
被动语态的用法
1. 一般现在时的被动语态构成：is / am / are + 及物动词的过去分词
Our classroom is cleaned everyday.
I am asked to...

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改成：The keyborads were not used to type information into the computer by him.
被动语态的用法
1. 一般现在时的被动语态构成：is / am / are + 及物动词的过去分词
Our classroom is cleaned everyday.
I am asked to study hard.
Knives are used for cutting things.
2. 一般过去时的被动语态构成：was / were + 及物动词的过去分词
A new shop was built last year.
Dinosaur eggs were laid long long ago.
3. 现在完成时的被动语态构成：has / have + been + 及物动词的过去分词
This book has been translated into many languages.
Many man-made satellites have been sent up into space by many countries.
4. 一般将来时的被动语态构成：will+ be + 及物动词的过去分词
A new hospital will be built in our city.
Many more trees will be planted next year.
5. 含有情态动词的被动语态构成：情态动词+ be + 及物动词的过去分词
Young trees must be watered often.
Your mistakes should be corrected right now.
The door may be locked inside.
Your homework can be handed in tomorrow.
6. 现在进行时的被动语态构成：am / is / are + being + 及物动词的过去分词
Uncle Wang is mending my bike now.→
My bike is being repaired by Tom now.
They are planting trees over there. →
Trees are being planted over there by them.
7. 不定式的被动语态：to + be + 及物动词的过去分词
There are two books to be read. →
There are twenty more trees to be planted.

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Keyboards aren't used by him keyboards to type information into the computer.

一、你要知道被动语态的结构是：be +过去分词
二、你要注意原句的时态，它决定了be形式
三、掌握住变被动句的方法：宾变主，主变介宾，谓语形式变被动。所以你应该在做题之前将原句的主谓宾画出来。那样做题就好做了。
He doesn't use keyboards to type information into the computer
主 谓语 ...

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一、你要知道被动语态的结构是：be +过去分词
二、你要注意原句的时态，它决定了be形式
三、掌握住变被动句的方法：宾变主，主变介宾，谓语形式变被动。所以你应该在做题之前将原句的主谓宾画出来。那样做题就好做了。
He doesn't use keyboards to type information into the computer
主 谓语 宾语
Keyboards are not used to type information into the computer by him.

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