With so much noise outside, the students can’t _____ their homework.A．concentrat

题型：不详难度：来源：

With so much noise outside, the students can’t _____ their homework.

A．concentrate on

B．depend on

C．keep on

D．put their hands on

答案

A

解析

试题分析：重点理解句意，掌握四个选项的区别concentrate on集中精力于某事 depend on依靠 keep on 继续put their hands on找到；把手放到什么上面  整个句意为：伴随着外面巨大的噪音，学生们不能集中精力于他们的功课上。故选A。
点评：本题不难，理解了句意后不难得出答案。平时的复习，要多对动词的短语进行积累、记忆，同时最好能在作文运用出来，这样就能做到学以致用了。