29.Failure is the mother of success,so that hers hasn't_______ her,but encouraged her to redouble her exertions instead.
A.discharged
B.discounted
C.discarded
D.discouraged
[答案与译文]D.失败乃成功之母。所以她的失败没使她灰心丧气,反而使她加倍努力。
[辨析及搭配]A.discharge v.允许……离开;排(放)出。B.discount vt.打断;漠视;认为……不值得考虑。C.discard vt.&vi.抛弃;放弃。D.discouragev.使泄气;沮丧;阻拦。
30.The chemistry teacher dipped his finger into the mixture_______ and took it out of it.
A.indirectly
B.directly
C.dimly
D.diplomatically
[答案与译文]B.化学老师把一个指头伸进混合液里,立刻又拿了出来。
[辨析及搭配]A.indirectly 间接地;拐弯抹角地。 B.directly 立即;很快;直接地。C.dimly 微暗地;朦胧地。D.diplomatically 外交上;外交地。
31.Any_______ in a watch is very delicate.
A.device
B.devise
C.deviancy
D.deviation
[答案与译文]A.钟表中的任何装置都非常精巧。
[辨析及搭配]首先排除动词B.devise v.设计;发明。A.device n.装置;设备;方法;计划。C.de- viancy n.反常;背离。D.deviation n.背离;越轨;偏差。