英语语法中的被动语态（一）

        被动语态1：英语中语态有两种：主动语态和被动语态。
        语态的作用：语态是动词的一种形式，用来说明主语和谓语之间的关系。
        语态的选用：如果主语是动作的执行者，谓语用主动语态。
        例如：We clean the room every day.
        如果主语是动作的承受者，或者说是动作的对象，谓语则是要用被动语态。
        例如：The room is cleaned every day.
        2:被动语态的各种形式
        1) am/is/are +done
        eg：I’m asked to take care of myself.
        eg：Football is played all over the world.
        2）has /have been done
        eg：This book has been translated into many foreign languages.
        eg：The prices of many goods have been cut again .
        3）am/is /are being done
        eg：A road is being built around the mountain.
        eg：Many new houses are being built in this city.
        4） was/were done
        eg1：This house was built in 1958.
        eg2：His leg was broken in an accident.
        5） had been done
        eg1：A new school had been set up by the end of last year.
        eg2：When the anthem had been played the conference began.
        6) was/were being done
        eg1： meeting was being held when I was there.
        eg2：We were being trained this time last year.
        7) shall/will be done
        eg1：More factories will be built in our city.
        eg2：He will be taken to hospital tomorrow.
        8) shall/will have been done
        eg1：The project will have been completed before July.
        eg2：Your clothes shall have been made for you soon.
        9) should/would be done
        eg1：He told me that his new cloths would be made by his mother.
        10) should/would have been done
        eg1：He told me that his new clothes would have been made very soon.
        3:主动形式表示被动意义
        1）及物动词的不及物用法：主语通常是物，且有着某种内在的特点。句子简短，且一定有付词。
        eg1：Some silks wash well.
        eg2：The pen writes smoothly.
        eg3：The poem reads fluently（流利地）.
        eg4：The shoes wear well（很耐穿）.
        eg5：The paper tears easily.
        2)否定句
        eg1：The plays won`t act.
        eg2：His novels don`t sell.
        eg3：The door won`t open.
        3)某些日常用语，谓语是进行时态
        eg1：The dinner is cooking.
        eg2：The cakes are baking（烘烤）.
        eg3：The book is printing.
        eg4：He paid all that was owing（欠的钱他都还了）.
        4）谓语是不及物动词或连系动词。
        eg1：The flowers look beautiful.
        eg2：what he said sounds reasonable.
        eg3：The roses smell sweet.
        eg4：The medicine tastes bitter.
        eg5：The cloth feels soft.
        eg6：The door blew open.
        eg7：The road measures 50 feet across.
        eg8：Sheep feed chiefly on grass.