the thought that they could cross the whole continent was exciting.分析这个句子的语法结构
问题描述：
the thought that they could cross the whole continent was exciting.分析这个句子的语法结构
答
the thought是主语。that they could cross the whole continent 不是定语，更不是修饰the thought的。因为the thought在that后面的那个句子中没有充当成分。而that they could cross the whole continent 是the thought的同位语，解释和说明the thought的内容的。就是这个想法，但是这个想法是什么呢，这个想法就是they could cross the whole continent 。was是谓语，exciting是表语。
答
the thought 主语
that they could cross the whole continent 定语从句 修饰the thought
was 谓语动词
exciting 形容词 做表语
答
同位语从句that 后面they could cross the whole continent 是和the thought同位都是主语但是没有the thought整个不能构成句子,was是谓语,exciting是定语