I saw a desk on which there is a book on which在句中做什么成分(状语),那句中的主语是 a book 谓语是is 哪宾语是什么呢··一个句子不可能缺少宾语吧····
追答一个句子可以没有宾语。
如:I see.(这个see谓语动词是不及物动词,不带宾语。)
又如:This is a box.
She is at home.
Lucy was excited.
上面三例中的谓语都是系动词,系动词后面只有表语,没有宾语。there be结构中的be也是系动词,这样的句子也没有宾语。
再说I saw a desk on which there is a book这句话。这里on which there is a book是定语从句,修饰desk。这个定语从句就是一个there be结构的句子。在这个定语从句中,a book是主语;is是系动词,作谓语;there作表语。which是关系代词,指代a desk。
如果将这个定语从句单独抽出来做一个完整的句子,就是:
There is a book on the desk.
嗯 我错了 是 there being 这样的句型
追答there being是there be的变体,是一种非谓语形式,其用法如下:
1) 用作介词后的复合宾语:
I never dreamed of there being a picture on the wall.
我从未想到墙壁上有幅画。
I was wrong about there being some misunderstanding between us.
认为我们之间有误解是我的错误。
2) 作状语用的独立结构:
There being nothing to do, we went home.
因为没有什么事要办,我们就回家了。
There being nobody else at hand, I had to do it by myself.
由于身边没有别人,我只得自己干了