请在第(48)处选择正确答案______

单选题请在第(48)处选择正确答案_______

A．modif cd
B．impressed
C．influenced
D．effccted

参考答案C

解析:C。考查动词词义的辨析。该句意为：信息革命影响了我们的工作和休闲，故influence(影响)正确。modify意为“修改”，impress意为“留下印象”，effect意为“起作用”，均不符合句意。

单选题请在第(49)处选择正确答案_______

A．distracting
B．controversial
C．irrational
D．competitive

单选题请在第(50)处选择正确答案_______

A．cotmted
B．evaluated
C．weighed
D．numbered

单选题Prof．Lees book will show you __________ can be used in other eontexts．

A．that you have observed
B．that hew you have observed
C．how that you have observed
D．how what you have observed