英语语法,请教一下解析的过程( ) to find words to express their gratitude, they silently grasped their hands.选项: a、they are unable b、been unable c、unable d、as unable

问题描述:

英语语法,请教一下解析的过程
( ) to find words to express their gratitude, they silently grasped their hands.
选项:
a、they are unable
b、been unable
c、unable
d、as unable

d

答案是C。
A不能选,因为选A的话,句子前面一半就是They are unable to find ...,是一个完整的句子;而后半句也是一个完整的句子。两个完整的句子之间不能用逗号来连接,所以错了。
B显然是错的,如果是Being unable 是可以的。
D也不能选,As放在句首可以作连词表示原因,应说完整As they were unable 才对。
选C正确,这儿是用形容词作状语,说明主语they的情况,表示原因。
再如:Curious about everything, the baby looked around.

C
当主从句的主语一致,并且从句的谓语动词含有be动词时,从句的主语和这个be动词可以直接省略,所以选C,补充完整的话就应该是“(they were)unable to find words to express their.......”

C

英语语法,请教一下解析的过程 ( ) to find words to express their gratitude,they silently grasped their hands.选项:a、they are unableb、been unablec、unabled、as unable答:C译:不知道如何表达他们的感激之...