During the nineteenth and twentieth centuries, migrations have taken place within 11 countries; the cities with their industries have attracted people away from the country. The possibility of earning a fixed 12 in a factory or office was more attractive than the possibility of staying on the farm and having ones work 13 by frost, storms, or droughts. Furthermore, the
development of agricultural machinery made it possible for fewer people to do the same 14 of work.
Thus, at the same time when the industrial revolution made it possible to produce goods more 15 and more quickly in factories, agricultural revolution also took place. Instead of leaving fields empty every third year, farmers began to plant clover or some other crop that would 16 the soil. Instead of using only animal fertilizer, farmers began to use chemical fertilizers to keep the soil
rich. These methods have enabled French farmers, for example, to get five times as much wheat as was 17 from the same land two centuries ago.
In many countries farmers find it more 18 to raise only one crop or one kind of animal. They choose the kind that gives the best results. Then they sell all that they produce, instead of trying to grow a little of everything and consume what they grow. This is a more feasible type of 19 because modern methods and machinery are adapted to specific animals and specific crops. Therefore, it would be too expensive to do all the work by hand, or to buy the 20 needed for several different kinds of farming.
A. salary E. deserted I. equivalent M. destroyed
B. freely F. operation J. enrich N. certain
C. profitable G.amount K. fruitful O. cheaply
D. obtained H. payment L. equipment
II. N 12. A 13. M 14. G 15. O 16. J 17. D 18. C 19. F 20. L
英语四级高频词汇精华版首字母F单词18
英语四级经典必背500句:听力口语的关键句25
英语四级高频词汇精华版首字母I单词2
英语四级经典必背500句:听力口语的关键句26
英语四级经典必背500句:听力口语的关键句10
英语四级高频词汇精华版首字母I单词15
英语四级经典必背500句:听力口语的关键句19
英语四级高频词汇精华版首字母H单词7
英语四级高频词汇的精华版:首字母I单词23
英语四级经典必背500句:听力口语的关键句21
英语四级经典必背500句听力口语关键句14
英语四级高频词汇精华版首字母H单词6
英语四级经典必背500句听力口语关键句06
英语四级经典必背500句听力口语关键句02
英语四级高频词汇精华版首字母H单词10
英语四级高频词汇精华版首字母I单词25
英语四级高频词汇精华版首字母I单词5
英语四级高频词汇精华版首字母H单词9
英语四级经典必背500句:听力口语的关键句17
英语四级经典必背500句:听力口语的关键句11
英语四级经典必背500句:听力口语的关键句03
英语四级高频词汇精华版首字母I单词10
英语四级经典必背500句听力口语关键句05
英语四级经典必背500句:听力口语的关键句01
英语四级经典必背500句:听力口语的关键句24
英语四级高频词汇精华版首字母I单词13
英语四级高频词汇精华版首字母I单词3
英语四级经典必背500句听力口语关键句07
英语四级经典必背500句听力口语关键句15
英语四级高频词汇的精华版:首字母I单词17
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