在英语越来越重要的21世纪，学好英语成了大学生的首要目标。为帮助大学生更好地掌握英语知识，特提供以下文章：
1. It was the first time that such a __ had to be taken at a British nuclear power station.
A presentation
B preparation
C prediction
D precaution
2.The test results are beyond__; they have been repeated in labs all over the world.
A conflict
B dispute
C bargain
D negotiation
3. The group of technicians are engaged in a study which __ all aspects of urban planning.
A embraces
B performs
C inserts
D grips
4. __ that he wan't happy with the arrangements. I tried to book a different hotel.
A Puzzling
B Penetrating
C Perceiving
D Persevering
5.His business, was very successful, but it was at the __ of his family life.
A exhaustion
B consumption
C credit
D expense
答案:
1-5 DBACD
1.选D precaution 预防措施或方法
I took the precaution of looking everything in the safe.
presentation 赠送，演出
2.选B dispute 争论，辩论，质疑
bargain 谈判
3.选A embrace 拥抱，包括
grip 紧抓，吸引(某人的)注意力，常用于被动语态
4.选C penetrating 思想敏锐的，有洞察力的，(声音)响亮的
preceive观察，注意到
perserving 坚持的，不屈不挠的
5.选D at the expense of 以……为代价