1 . 阅读下面材料,在空白处填入适当的内容(1个单词)或括号内单词的正确形式。
Farming was once the main way of life in nearly every country. 1 food, people cannot live, and nearly all their food comes from crops and animals 2 (raise) on farms. Many other materials also come from plants and animals.
Before 3 nineteenth century, the typical American family lived on a small farm. They fed pigs, cattle and sheep, and planted corn, fruits and wheat 4 (make) a living. Everyone worked long and hard, but they hardly got enough food for 5 (them). This situation began to change 6 ( great ) during the last half of the 1800’s.
However, now farming has become less important as a way of life than ever before. The production of some major crops 7 (increase) in the past few years as a result of the appearance of scientific methods and labor-saving machines. Today farmers’ 8 (able) has been improved. Successful farmers are not only good at agriculture but at marketing and finance as well. Life will be difficult for farmers 9 only know how to grow crops. Now not many people keep 10 (work) on a farm to make a living any more, but farming still plays an important role in people’s life.