1. When they asked him about it, he said it was no ___ of theirs and wouldn't tell them anything.
　　 A. connection B. relation C. association D. concern
　　2. Corporation and labor union have ___ great benefit upon their employees and members as well as upon general public.
　　 A. conferred B. granted C. flung D. submitted
　　3. It is difficult to ___ the sample that is on the slide unless the microscope is adjusted properly.
　　 A. overlook B. discern C. disclaim D. discard
　　4. The morning news says a school bus ___ with a train at the junction and a group of policemen were sent there immediately.
　　 A. bumped B. collided C. crashed D. struck
　　5. It's rude to ___ people when they are speak.
　　 A. interfere B. interrupt C. disrupt D. block
　　答案：1.D
　　当他们向他问起那件事的时候。他说到，这不关你们的事，并且将不会告诉他们关于那件事的任何消息。
　　connection（with） 连接 联系
　　relation(to) 关系
　　association 结合，合伙，联合
　　concern 关心，关注 It is no ~ of sb与某人无关 相当于：It is non of one's business
　　2. A
　　公司和工会给予了他们的雇员和会员如公众般极大的利益。
　　confer(upon) 把……授给
　　grant(sb sth) 授予，准予
　　fling 扔，掷，投
　　submit(sth to sb) 把……交给
　　3. B
　　除非显微镜被调整准确，否则很难辨别在载玻片上的样本。
　　overlook 忽略，忽视
　　discern 辨别，认出
　　disclaim 否认，放弃，不争取
　　discard 丢弃，抛弃
　　4. B
　　早间新闻报道了一辆小车在十字交叉路口撞上了一辆火车，一群警察立即被派遣到现场的消息。
　　bump(against,into) V. 碰撞，撞，撞伤/n. 肿块
　　collide（with）指两个或两个以上的物体碰撞，互撞
　　crash（into）车与车相撞或物体相撞
　　strike vt. 碰撞
　　5. B
　　当人们正在说话的时候打断他们是很没有礼貌的。
　　interfere（with）妨碍，干扰 interfere（in）干涉，干预
　　interrupt 打断，打扰
　　disruptive 分裂，瓦解
　　block 封锁，阻塞
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