Zack 老师又发来领读了，低音炮的声音，带您更好的进入read aloud 的学习状态哦~
跟着Zack 老师的声音，大家一起进步
如果是妹子的话，声音一定要记得，压低压低哦~
Erosion of America's farmland by wind and water has been a problem since settlers first put the prairies and grasslands under the plow in the nineteenth century. By the 1930s, more than 282 million acres of farmland were damaged by erosion. After 40 years of conservation efforts, soil erosion has accelerated due to new demands placed on the land by heavy crop production. In the years ahead, soil erosion and the pollution problems it causes are likely to replace petroleum scarcity as the nation's most critical natural resources problem.
文本难度略长，不过对于需要练习的同学，这个是有必要的。
认真跟读，才能在考场不发怵
千万不要吝啬准备的时间，因为每一分钟的准备都是有收获的！
本题朗读难点：
各个数字朗读，以及日期的发音：1930s,还有一些词汇有些同学可能不熟悉，比如：petroleum scarcity
来献上Zack 老师的原音重现
457定制课程，正在起航，欢迎扫描咨询！
