一、被动语?/p>
1)
被动语态最基本的句型结构是?/p>
be + Vp.p
(及物动词过去分词)
be
动词可以随时态人称的变化而变?/p>
一?/p>
被动语态的用法?/p>
1.
一般现在时的被动语态构成:
is / am / are +
及物动词的过去分?/p>
Our classroom is cleaned every day.
I am asked to study hard by my mother.
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?/p>
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?/p>
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?/p>
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?/p>
+ be +
及物动词的过去分?/p>
Young trees must be watered often.
Your mistakes should be corrected right now.
The door may be locked inside.