be eager to 为什么放句首时要省略be

来源：学生作业帮编辑：拍题作业网作业帮分类：英语作业时间：2024/04/27 15:24:29

放在句首不是省略Be动词的原因,是因为此时形容词或者形容词短语作原因状语,跟非谓语动词作状语类似.如果不省略,那句子中岂不是有两个谓语动词?
例如：
She has finished her homework,so she watched TV.一般句
Having finished her homework,she watch TV.非谓语作状语
这虽然是非谓语的例子,但其实语法上有相似处,第二句中不是直接把has放句首,是因为第二句没有连词so,所以要转化成非谓语作状语的形式,所谓非谓语就不是谓语动词.同理,形容词作状语,是肯定不能带上be的,being还说得过去,但是英语语法中没有这样的用法,一般都是直接把形容词放在句首.
例如：
Eager to improve her English,she has to practice English every day.
等同于：As she is eager to improve her English,she had to practice English every day.
再问：我在高中语法书里找了很长时间也没有找到，再请问，这是属于什么语法？
再答：形容词作状语。

be eager to 为什么放句首时要省略be be eager to 还是be eager for be eager to do be eager to be eager to doing 是be eager to 还是 eager to do sth Be anxious to 和 be eager to 的不同除了“eager for success”“want to be successful”“achieve success be eager to do同义短语,尽可能多 "lazy people are always eager to be doing something." 解释! 【高中英语001】be eager to do 什么意思? anxious to do和eager for 和be dying to和 be longing to 的区别