VOA慢速英语:Building a Windbreak to Protect Crops

短语讲解：

1. Soil conservation methods help farmers protect their land from the damage caused by farming and the forces of nature.

protect from保护, 保卫
例句：Trees should be well protected from the cold during winter.
冬天要保护好树木以防冻坏。

2. They stop the wind from blowing soil away.

stop from阻止某事发生
例句：Eyebrows stop sweat from coming down into the eyes.
眉毛挡住汗水使其不能流进眼睛。
blow away (使)吹掉
例句：The roof of their house was blown away.
风把他们的屋顶刮跑了。

3. They also keep the wind from damaging or destroying crops.

keep from阻止; 免于
例句：Urgent business kept me from attending the meeting.
因有急事我不能去参加会议。

4. Windbreaks can be highly valuable for protecting grain crops.

be valuable for对…有用
例句：The book is valuable for my purpose.
这本书对我很有用。

5. For example, studies have been done on windbreaks in parts of West Africa.

for example例如, 譬如
例句：I know many women who have a career and a family—Kehr for example.
我知道有许多妇女能事业家庭兼顾——凯尔就是其中之一。

6. These studies found that grain harvests were as much as twenty percent higher in fields protected by windbreaks compared to fields without them

compare to与…相比
例句：The writer was compared to Shakespeare.
把这个作家与莎士比亚进行了比较。

7. They seem to work best when they allow some wind to pass through the barrier of trees or plants around a field.

pass through经过, 通过
例句：A diameter passes through the center of a circle.
直径从圆心穿过。

8. An easy rule to remember is that windbreaks can protect areas up to ten times the height of the tallest trees in the windbreak.

up to多达
例句：I can take up to four people in my car.
我的汽车最多能坐四个人。

9. The second line, right next to it, can be shorter trees and other plants with leaves.

next to紧邻；在…近旁
例句：The ship hove to next to ours.
那艘船停靠在我们的船旁边。

10. Studies have shown that some kinds of trees can grow well even if the quality of the land is not very good.

even if即使, 纵然
例句：I wouldn't lose courage even if I should fail ten times.
即使要失败十次, 我也绝不灰心。

11. Surplus trees can be cut down and used or sold for wood.

cut down把…砍倒〔割掉〕
例句：He cut the tree down.
他砍倒了这棵树。

12. Their roots help protect soil from being washed away.

wash away冲走, 清洗
例句：She washed away the stains.
她洗去了污迹。

13. They can provide grazing animals with shade from the sun.

provide with给…提供;以…装备
例句：Somehow she managed to provide her children with food and clothing.
她总算设法使她的孩子有饭吃,有衣穿。