题目内容
12.森林有利于防止水土流失.Forests help to keep waterfrom washingthe earth away.
分析 from washing.
解答 答案:from washing.表示阻止…不做某,结合keep用keep …from doing sth,水土流失用wash the earth away,故答案是from washing.
点评 keep (on)doing sth.,继续做某事;不停地做;反复做某事
To keep doing sth until you have been successful.也就是很多人都没有成功的根本原因吧.
keep sb.doing sth.使某人一直做某事.,让某人保持做某事
I keep my son doing homework every evening.
keep sb from doing 妨碍、防止某人做某事
We should keep children from playing games too much.我们应防止孩子们过份玩游戏.
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