lost in thought与be lost in thought的区别

题目

lost in thought与be lost in thought的区别
1.Lost in thought,he forgot his meals.
Q:Why not use "be lost in thought?"
2.The goverment is deeply concerned about the education of the poor areas in the southeast of China.
Q:Why not use "is showing deeply concerned about……"
A new study from English shows pet owners tend to be heavier,less active and in poorer health than people without a pet,which was released in PLOS ONE,an active journal_________(publish) by the ppublic library of science.
Q:Why not use"be published"?
A:

答案

第一题：Lost是过去分词做状语,不能用be lost在这里.
第二题：如果你想用下面的句子,应该这样：is showing deeply concerns about.（concern是名词 在这里做showing 的宾语）
第三题：应该填 published 是过去分词做定语修饰 journal