391. Though you've got to get them to do it, by helping too much, or even examining answers too carefully, you may keep them from doing it by themselves.

英语四级译文:
尽管你已经让他们去做，但提供过多的帮助，抑或甚至过于仔细地检查答案，你可能反而会阻止他们自己动手。

四级词汇讲解:
get sb. to do sth.意为“让某人做某事”。如:
You may get him to deliver the letter for you.你可以让他帮你把信送过去。

keep sb. from doing sth.意为“使某人不能做某事”。如:
The bells kept me from sleeping.钟声吵得我睡不着觉。

英语四级考点归纳:
keep... from...短语还有以下用法:

※ keep (oneself) from doing sth.意为“克制自己不做某事”。如:
I could hardly keep myself from laughing.我忍不住大笑起来。

※ keep sth. from sb.意为“不将某事告诉某人”。如:
We ought to keep the truth from her.我们不应该告诉她实情。