难句分析
1．When I walked around the city，I saw streets just as they had been，with stepping stones along the road so you did not have to step in the mud on rainy days!
句式分析：when引导从句，主句的主干是I saw streets，而as they had been用作状语，介词短语with stepping stones along the road是streets的，连词so 后接从句。

自主翻译：
2．The desert was once a green land with huge trees，but they were cut down and that resulted in the city being buried by sand—what a pity!
句式分析：本句是并列句，resulted in后面的宾语the city being buried by sand 是，city与bury之间存在关系，故用being buried。

在动名词的复合结构中，其逻辑主语一般由物主代词、名词所有格、人称代词的宾格和名词的普通格来充当。

自主翻译：
难句分析
1．When I walked around the city，I saw streets just as they had been，with stepping stones along the road so you did not have to step in the mud on rainy days!
句式分析：when引导时间状语从句，主句的主干是I saw streets，而as they had been用作方式状语，介词短语with stepping stones along the road是streets的定语，连词so后接结果状语从句。

自主翻译：当我在城中漫步时，我看到保持原样的街道，沿路都有垫脚石，这样下雨天你就不用在泥泞中行走了！
2．The desert was once a green land with huge trees，but they were cut down and that resulted in the city being buried by sand—what a pity!
句式分析：本句是并列句，resulted in后面的宾语the city being buried by sand是动名词的复合结构，city与bury之间存在被动关系，故用being buried。

在动名词的复合结构中，其逻辑主语一般由物主代词、名词所有格、人称代词的宾格和名词的普通格来充当。

自主翻译：这片沙漠曾经是大树成荫的绿洲，但这些树被砍倒了，导致了这座城市被沙尘掩埋——多么遗憾啊！。