过去分词作状语问题Having been suffered such heavy pollutin already,it may now be too late to clean up the river.Having been told many times ,he still couldn't understand.为什么第一句要去掉been 第二句不用?

Having been told many times,he finally understood it.Having been told可以改成Told吗?作状语不是一样told可以是过去分词作状语啊？ 作状语的的过去分词什么时候要用having +过去分词或者直接是过去分词呢 过去分词作状语的选择题Before ______ white,the door should be cleaned thoroughly.A paintedB being paintedC having been painted为什么?每个选项都说明一下, 请教Having been done与过去分词的一般式作状语时有什么区别?好象两者都表被动和完成,有什么区别呢? 过去分词作状语问题Having been suffered such heavy pollutin already,it may now be too late to clean up the river.Having been told many times ,he still couldn't understand.为什么第一句要去掉been 第二句不用? 分词作状语：doing ,done ,having been done ,noe having done ,都怎么用?not having done Having been told many times,he finally understood it.这个句子中为什么不能用Told代替Having been tol过去分词与完成式的被动形式作状语的区别 英语语法问题：现在分词、过去分词和不定式作状语如何区别 【英语关于非谓语的问题】现在分词作状语现在分词的被动式可以作状语么?我记得我们老师说过非谓语作状语 如果是主动的就用现在分词 被动的就用过去分词 有明显的先后关系就用having do 英语翻译过去分词短语作原因状语 过去分词作状语的用法 过去分词作状语的用法 过去分词作状语,能否举例说明下? 过去分词作状语问题1.—————— twice,the postman refused to deliver our letter unless we chained the dog. A.Having bitten B.bitten怎样判断过去分词作状语时过去分词是否含现在完成时,这题已经含有 关于过去分词做状语表被动a violent movie has always been the criticized subject (criticized 过去分词作状语表别动）对吗?为什么不对? 这题：过去分词作状语的选择题Before ______ white,the door should be cleaned thoroughly.A paintedB being paintedC having been painted为什么?每个选项都说明一下, 现在分词作状语的时态问题现在分词作状语时有1.doing 2.having doing 3.having been done 4.being done后两个可以理解,但是前两个有什么区别呢?例题：——the earth to be flat ,many feared that Columbus would fall off 请问过去分词可以做伴随状语以外的状语吗?如果可以,那它和being done和having been done有什么区别?