谁能帮我分析一下这个句子的成分,还有 句中的where可不可以用that代替?The expansion of desert like conditions into areas where they did not previously exist is called desertification主要是句子的前面那部分不是很了解
问题描述：
谁能帮我分析一下这个句子的成分,还有 句中的where可不可以用that代替?
The expansion of desert like conditions into areas where they did not previously exist is called desertification
主要是句子的前面那部分不是很了解
答
沙漠扩大到一个从前不存在沙漠的地方，这就叫沙漠化。
答
The expansion of desert is called desertification
主句
like conditions into areas 状语
where they did not previously exist定语修饰areas ,不可以用that,where是副词,专门指地点