成都市武侯区2017阅读理解一轮训练（2）及答案

　　阅读理解

　　Grasslands need time to rest when cattle and other animals feed on them. Moving animals from one area of pasture (牧场) to another can provide the time needed for new growth. This is called rotational grazing .(循环放牧)

　　Rotational grazing is good for the land and the animals, and it can save money. This form of grazing can reduce the need for pesticide (农药) treatments by reducing the growth of weeds. And it can limit the need for chemical fertilizers by letting animal wastes do the job of natural fertilizer. Rotational grazing can even help prevent wildfires by keeping grasslands in good condition.

　　Letting animals feed continually and intensively (集中地) in the same grazing areas can require costly replanting. Animals eat the most desirable growth first. When that keeps happening, the roots do not have enough time to recover. As a result, less desirable plants may replace them. Intensively used grasslands are also harmed as the soil is continually crushed under the weight of heavy animals.

　　While rotational grazing can save money over time, it also requires planning. And that starts with a good map to mark fences, water supplies and grazing areas.

　　Changing methods of grazing also requires time. Farmers may want to put up electric fences to enclose (圈起) grazing areas, called paddocks. The paddocks will need water. Some farmers design a path for animals from different paddocks to drink from a common watering place.

【2017届成都市武侯区高考英语一轮复习阅读理解训练（2）及答案】相关文章：

★ 2014届高考英语一轮复习课时作业(三十四)选修6Module 4《Music》（外研版）

★ 2017高考四川省广安市英语阅读理解一轮系列训练：29（含解析）

★ 湖南省岳阳市2014高考英语一轮单项选择训练题（4）及答案

★ 湖南省汝城二中2014届高考英语一轮复习阅读训练 (44)

★ 【北师大版】2014届高考英语一轮复习指导课时作业：Unit 2 A卷 Word版含解析

★ 【优化方案】2017届高考英语二轮复习全国卷Ⅱ规范练：7（含解析）

★ 【人教版】2014届高考英语一轮复习指导考点针对练：必修2 unit3《Computers》

★ 2014高考英语（新人教版）一轮基础训练（1）A、B卷（附答案或解析）

★ 【人教版】2014届高考英语一轮复习指导考点针对练：必修1 unit1《Friendship》

★ 常熟市2014高考英阅读理解语一轮（暑假）训练题（6）及答案