David Livingstone

At one time many people believed that the middle of Africa was a sandy desert, where nothing could live but camels and ostriches¹. But they were mistaken. The great traveller, David Livingstone, journeyed into this unknown country, and he found that it was not a desert but a beautiful land, where many tribes of black people dwelt. He also saw that these people were often seized by strangers, and taken away to be sold as slaves. This sight filled him with sadness, and he made up his mind to put a stop to this cruel traffic. He worked hard, tracing the courses of the rivers, finding the best tracts² of land, and teaching the natives. Then he urged his countrymen to send others after him to settle in this fair country, to help the natives to learn useful trades, and to drive away the slave-merchants.

For some years he was quite alone, with his black servants, in the midst of this wild land. His friends grew anxious, and sent Mr. Stanley, another great traveller, to look for him. Stanley marched for nearly a year before he found Livingstone. The old explorer was white and worn with sickness and hardship, and he was overjoyed to clasp once more the hand of a white man, and to hear again the English tongue. But he would not return to England. He said his work was not yet done, and he set out once more on his travels. It was his last journey. One morning his servants found him dead upon his bed. Since that time much has been done to make Central Africa a prosperous land. Other white men have followed where Livingstone led, and wherever they have settled, the wicked slave-trade has been stopped.

1 ostriches   

n.鸵鸟( ostrich的名词复数 )；逃避现实的人，不愿正视现实者

参考例句：

• They are the silliest lot of old ostriches I ever heard of. 他们真是我闻所未闻的一群最傻的老鸵鸟。 来自辞典例句
• How ostriches could bear to run so hard in this heat I never succeed in understanding. 驼鸟在这样干燥炎热的地带为什么能疾速长跑，我永远也理解不了。 来自辞典例句

2 tracts   

大片土地( tract的名词复数 )； 地带； （体内的）道； （尤指宣扬宗教、伦理或政治的）短文

参考例句：

• vast tracts of forest 大片大片的森林
• There are tracts of desert in Australia. 澳大利亚有大片沙漠。