Question

This evening , I had a meeting with Jack Hall,the Canaian astronaut是复合句还是从句？

Answer 1

复合句就是含有主句和从句的句子；从句常用引导词来引导，如：
When I was a child, I lived with my grandparents.( 我小时候和爷爷奶奶住在一起。)
该句中的When I was a child是时间状语从句，I lived with my grandparents.是主句。
简单句中不含从句；复合句只有一个主句，但可以有一个或多个从句。如：
When I was a child, I lived with my grandparents who loved me very much.
( 我小时候和深爱我的爷爷奶奶住在一起。)
该句中两个从句：When I was a child（状语从句）和who loved me very much（定语从句）

This evening,I had a meeting with Jack Gall, the Canadian astronaut.因不含从句，所以是一个简单句。the Canadian astronaut是Jack Gall的同位语，This evening是该句的时间状语。