帮我看下这个句子是什么从句？

The news作主语，that he wants to get 为定语从句，修饰the news,
is为联系动词，whether he will be sent to the countryside.为表语从句，与前面的is一起构成谓语。（动词be不能单独作谓语）

祝你进步！

The news that he wants to get
THAT引导的定语从句修饰 NEWS 做主语

谓语是 IS

后面接了个whether 是否会怎样怎样 做宾语

The news that he wants to get引导的是主语从句.

句子的主干是The news is whether ...

状语从句
whether是是否的意思

that he wants to get 是主语从句，news是先行词。
whether引导的是让步状语从句

The news that he wants to get引导的是主语从句