I.阅读理解A When people think of farming today, they usually picture a tractor (拖拉机) rather than horses in the farmland. That's because tractors that relied on engines revolutionized farming in the late 1800s. Now a new type of tractor can do the same in the 21st century.Agriculture ...
That's because tractors that rely on engines revolutionized farming in the late 1800s. Now a new type of tractor can do the same in the 21st century.Agriculture has been changing dramatically in the last few decades. The push for innovation is fed by the need to produce larger amounts of...
出版社:Pearson Scott Foresman 页数:0 ISBN:9780328183623 豆瓣评分 目前无人评价 评价: 写笔记 写书评 加入购书单 分享到 推荐 我要写书评 Reading 2007 Leveled Reader 6-Pack Grade 6 Unit 2 Lesson 3 Below Level Farming in the 1800s的书评 ···(全部 0 条) + 加入...
In the 1300's English farmers hired children to protect their crops. They were called “bird scares”. The children chased birds and threw stones at them.Bird scares were replaced in the 1800's by scarecrows. A scarecrow is anything that is set in a field to scare birds away. Often it...
Clark's claims about the scale of English agricultural output from the 1200s to the 1860s flout historical and geographical reality. His income鈥恇ased estimates start with the daily real wages of adult males and assume that days worked per year were constant. Those advanced in British ...
【题目】In the early 1800s a small farming settlement had been established in the San Luis Valley, but most settlers pushing westward across the Great Plains continued on to the more fertile lands of Oregon, Washington, and California. It was the discovery of gold that first brought large ...
根据第二段This situation began to change during the last half of the 1800s and it changed remarkably in the following century(这种情况在19世纪后半期开始发生变化,在下一个世纪发生了显著变化)可知,文章主要介绍了美国农业的变化。故选A。 本文为说明文。文章介绍了农业在人们的生活中的重要性和美国农业...
In the 1800s, some Belgian and Dutch cultivators started experimenting with the placement of glass plates against fruit walls, and discovered that this could further boost crop growth. This method gradually developed into the greenhouse, built against a fruit wall. In the Dutch Westland region, th...
For example, handheld tools were the norm until the cotton gin’s introduction in 1793, and chemical fertilizers, grain elevators, and the gas-powered tractor revolutionized farming and agriculture in the 1800s. In the 1990s, farmers started using satellite imagery to plan their work. Today ...
Why did the Bantu migrate to South Africa? Why was wheat important in the Columbian Exchange? Why did the Incas use terrace farming? Why did slaves run away in the American South? Why couldn't the Lakota people farm in the 1800s?