导语：大家觉得自己的托福考试的复习工作都进行得怎样啦?下面是关于托福考试阅读长短句的难句分析，大家一起来看看相关内容吧。
When the ice sheets were at their greatest extent some 18,000 years ago (the glaciermaximum),it is thought that the fall was about 120 meters, which therefore created not merely a bridge but a vast plain,1,000 kilometers from the north tothe south, which has been called Beringia. (TPO49, 46)
大家自己先读，不回读，看一遍是否能理解
( When the ice sheets were at their greatest extent some 18,000 years ago) (the glacier maximum), it is thought that the fall was about120 meters , ( which therefore created not merely a bridge but a vast plain) , ( 1,000 kilometers from the north tothe south) ,( which has been called Beringia. ) (TPO49, 46)
托福阅读长难句分析：
修饰一：( When the ice sheets were at their greatest extent some 18,000 years ago) ，从句
中文：当冰块大约在18000年前面积达到最大时
修饰二：( which therefore created not merely a bridge but a vast plain) ，从句
中文：因此创造了不仅仅是一座桥而且一块广阔平原
修饰三：( 1,000 kilometers from the northto the south) ，插入语
中文：从北往南1000公里
修饰四：( which has been called Beringia. ) ，从句
中文：被称为白令陆桥
托福阅读长难句翻译：
当冰块大约在18000年前面积达到最大时(盛冰期)，我们认为(海平面)下降了120米，因此创造了不仅仅是一座桥而且还有一块从北往南1000公里的.广阔平原，被称为白令陆桥。
这个句子的主要修饰成分就是插入语和从句 ，大家务必想清楚，每一个修饰成分修饰的是什么，才能看清楚这个句子的结构
