求助曼哈顿里两个句子

amox

1. the teacher is confident that her students mastered the lesson 是什么从句？
2. Citizens of many countries are expressing concern about the environmental damage caused by the widespread release of greenhouse gases, damage that may be impossible to reverse. 最后damage that是什么成分呢 同位语还是独立主格？

长丝弓

个人理解
1. the teacher is confident that her students mastered the lesson 是表语从句
2. Citizens of many countries are expressing concern about the environmental damage caused by the widespread release of greenhouse gases, damage that may be impossible to reverse. 最后damage that 是同位语

amox

长丝弓 发表于 2020-11-4 15:58
个人理解
1. the teacher is confident that her students mastered the lesson 是表语从句
2. Citizens of ...

谢谢！请问第一个句子中从句的部分充当的是表语补足语吗