1. It's a city in Xinjiang about four hours by bus from Urumqi. 它是一座离乌鲁木齐乘汽车4小时远的新疆的城市。

　　four hours by bus 是“乘公共汽车4小时”的意思。

　　这句话还可以说成： It's a city in Xinjiang about four hours' drive from Urumqi.

　　另外一种说法是： It takes about four hours to drive from Urumqi to a city in Xinjiang. 例如：

　　The nearest post office is a quarter by bike from the village. = The nearest post office is a quarter's ride from the village. = It takes a quarter to ride from the village to the nearest post office. 骑车去离乡村最近的邮局需要一刻钟。

　　2. I like Kashi , also known as Kashgar. 我喜欢喀什，也作为喀什噶尔而闻名。

　　be known as ... = be famous as ..., 是“作为……而闻名”的意思。另外还有两个有用的短语：“be known for ...”(因……而闻名)和“be known to ...”(被……所知道)。例如：

　　Lu Xun was known as a great writer. 鲁迅作为一位著名的作家而闻名。

　　Lu Xun was known for his book. 鲁迅因他的书而闻名。

　　Lu Xun was known to all the people in China. 鲁迅被全中国的人所知。

　　第三句话还可以说成：It's known that Lu Xun was a great writer.

　　(文/张新峰；英语辅导报初四普及版04—05学年度第4期；版权归英语辅导报社所有，独家网络合作伙伴新浪教育，未经许可，不得以任何形式进行转载。)