hefoundhissonbylettersandpaperandhefoundhissonbylettersandpaperandveryworried.1是surrounding/surrounded2是looking/looked怎么区分

Question

he found his son_ by letters and paper and _
he found his son_ by letters and paper and _ very worried .
1是 surrounding/surrounded
2是looking/looked
怎么区分

Answer 1

1选surrounded
2选looking
区分的方法
He found .是主句/主谓,
跟从句一：His son is/was surrounded by letters and paper 和
从句二：His son looks/looked very worried
合起来：He found his son was surrounded by letters and paper and (his son) looked very worried.
变形之后,surrounded by ...只用动词过去式,表被动,做状语 （被包围）
looking ...动名词,表状态,做状语 （看起来）
简单的方法,根据语义,by在此表被动,肯定用surrounded过去式表被动
若选looked,语义变成他儿子被看着,不合
若是父亲看起来很担心的话,该句应这样：
He found his son surrounded by letters and paper,and looked very worried.
逗号很重要哦
其实,你只要用一种合适自己的方法选出正确的答案就可以,不需要懂以上的全部.