Larger in area than Europe,the icy continent(surrounds) the
2个回答

that surrounds the South Pole是定语从句,修饰continent.如果直接填surrounds,则这个句子出现了两个谓语(surrounds和 is called),这是英语语法所不允许的.

当然,如果不用定语从句也可以,那么就要写成surrounding.surrounding the South Pole是现在分词短语作定语,修饰continent.