高中英语语法,1haveing been criticized by teacher,I gave up smoking

高中英语语法,
1haveing been criticized by teacher,I gave up smoking
haveing been criticized by teacher是什么从句,连接词呢?
2____I could express my thanks to the man,he had already disappeared
空格处应填before但是能填when吗为什么
3where will all this trouble lead
all指的是什么作什么成分
4To own a PC in families,which we thought was impossible twenty years ago,now becomes true
To own a PC in families这句作什么成分?独立主格吗还是什么
now becomes true为什么能直接becomes true

原问题：高中英语语法,高中英语老师帮帮忙高三总复习了
1 haveing been criticized by teacher,I gave up smoking
haveing been criticized by teacher是什么从句,连接词呢?
2 ____I could express my thanks to the man,he had already disappeared
空格处应填before但是能填when吗为什么
3where will all this trouble lead
all指的是什么作什么成分
4To own a PC in families,which we thought was impossible twenty years ago,now becomes true
To own a PC in families这句作什么成分?独立主格吗还是什么
now becomes true为什么能直接becomes true
提问者：IamMason
回答：
1.haveing been criticized by teacher,是现在分词短语（现在分词的完成式的被动结构）用作状语.这个分词短语可以改写为一个从句 → BECAUSE I HAD BEEB criticized by teacher,I gave up smoking .
2. 不能用when 代替.before ... 强调的是： 在 ...之前.同时后半句中的谓语是过去完成时,（he had already disappeared）这进一步说明,这句话中的两个动作（cound express；had disapperaed）的发生是有先后顺序的（had disapperaed在前,cound express在后）.
3. all用作形容词, 修饰 this trouble.
4. To own a PC in families 是句子的主语,谓语是 becomes.在这里是系动词.后面接true （形容词）,是表语.
To own a PC in families（,which we thought was impossible twenty years ago,）now becomes true.小括号的内容是定语从句,如果把定语从句简化掉,这个句子就成了如下的样子：To own a PC in families（,...,）now becomes true.
你好,IamMason !满意吗?如果不满意可以追问.满意的话就请采纳.
再问： 第一个 没问之前我也想haveing been criticized by teacher是不是原因状语从句缩写因为主从句主语一样,但不能确定 还有第二问的when,我从我们复习课本的找到一个例句,从句是由when引导时态是一般过去时主句为过去完成时,句意为当我们到达电影院时,电影已经开始了 它没用before 而是用when
再答： 第一句肯定是一个分词短语用作状语。属于英语语法中的非谓语动词部分。尽管可以用一个原因转语从句来替换它，但是英语语法中没有“原因状语从句缩写”这样一个语法现象。当然为了记忆或是理解的方便，你也可以这样想。 第二句，如果不会引起误解的话，用when也可以。