Are you interested in geography？Do you know a famous geographer named Xu Xiake？In most people's opinion，（1）旅行可能是最好的老師。And there is no better example of this idea than the travel writer and geographer Xu Xiake.His book The Travel Notes of Xu Xiake 《徐霞客游記》，not only encouraged a love of travelling among Chinese people but provided important scientific information about the country's land and geography.
    Born into a wealthy family，Xu became interested in books about different places at an early age and wanted to travel.Several years later，Xu's father died and （2）it seemed that it was impossible for him to achieve his travelling dreams. He was responsible for the family farm and taking care of his 60-year-old mother as tradition required.
    But his mother had different ideas.Understanding her son's love of travel and valuing the knowledge he could get from such experiences，this woman refused to keep her son at home.She agreed that Xu could travel for three months every year，when there was less farm work.（3）據說他在20歲的時候，開始了第一次旅行。 During this time，he travelled throughout the country，carefully studying the lands he passed through and recording his experiences and many discoveries in a diary.（4）This diary which had over 500，000 words became The Travel Notes of Xu Xiake in the end. Although rich，Xu avoided comfortable travel，preferring to go travelling on foot.（5）This way he could research the environment and get a true picture of the natural world.

（1）

Travel may be the best teacher.

Travel may be the best teacher.

（2）

他似乎不可能實現(xiàn)他的旅行夢想。

他似乎不可能實現(xiàn)他的旅行夢想。

（3）

It is said that he started his first trip at the age of 20.

It is said that he started his first trip at the age of 20.

（4）

這本50多萬字的日記最終成為《徐霞客游記》。

這本50多萬字的日記最終成為《徐霞客游記》。

（5）

通過這種方式，他可以研究環(huán)境并獲得自然界的真實圖像。

通過這種方式，他可以研究環(huán)境并獲得自然界的真實圖像。