试题题干
Translate the following sentence into Chinese.
There are times when computers seem to operate like mechanical "brains", but their achievements are not very great when compared to what the minds of men can do.
参考答案
试题解析
考点：operate 运行；mechanical "brains"机械“大脑”；achievement成就；compare to···与······相比。
句子结构：句子为but连接的并列句。前半句主干为There are times，when引导同位语从句修饰times。后半句主干为their achievements are not very great，when引导时间状语。