1.You have nothing to____ by refusing to listen to our advice

　　.A) gain B) grasp C) seize D)earn

　　答案：A gain 表示“收益，得到”，符合题意。抓住(B)，夺取(C)和挣得(D)，不符合题意。

　　2.Now the____ between the rich and the poor countries has become even wider.

　　A) different B) differ C) gap D)distinction

　　答案：C different 不同的，为形容词。differ与……不同，差别，为动词。句中需要的是主语，故A、B均错。gap 差异，差距。distinction 区别。由rich与poor可知为贫富差异，应选C，句意：现在贫国与富国间的差距已变得越来越大。

　　3.The little boy____ his hiding place when he coughed.

　　A) gave away B) gave off C) gave up D) gave in答案：A give away“赠送;泄露”。give sth. off“释放，发出(气味等)”。give up “停止，放弃，辞去”。give in“认输，让步，屈服;交上，呈上”。The rebels were forced to give in. 叛军被迫投降。本句意为：小男孩的咳嗽声暴露了他的藏身之处。

　　4.The floor was so rotten that it almost ____ under his weight.

　　A) gave away B) gave over C) gave way D) gave up

　　答案：C give away“泄露;捐赠”。give over“停止;交付”，give way“不能支持，塌下去”。give up“放弃;辞去”。地板烂成这样子，都快被他的体重压塌了。

　　5.Ever since the rise of industrialism. education has been____ towards producingworkers.

　　A) harnessed B) hatched C) motivated D) geared

　　答案：D gear(to) 使适合：we have to gear our lives to the new changes. harness 控制和利用(自然力以发电) 。hatch 孵化;炮制，制定。motivate 是……的动机，引起，驱使。