现在英语水平的高低很大程度上决定着毕业生是否能找到一份高薪的工作，为帮助大学生更好地学习英语，特提供以下资料：
1.First published in 1927, the charts remain an _______ source for researchers.
A intelligent
B indispensable
C inevitable
D identical
2. Please___ dictionaries when you are not sure of____ word spelling or meaning.
A search
B seek
C inquire
D consult
3. It ____ you to at least 50% off the regular price of either frames or lenses when you buy both.
A credits
B entitles
C presents
D tips
4. The __ at the military academy is so rigid that students can hardly bear it.
A confinement
B convention
C discipline
D principle
5. Doctors warned agaisnt chewing tobacco as a _____ for smoking.
A succession
B substitute
C revival
D relief
谜底
1-5BDBCB
1.选B indispensable to do sth, indispensable for sth/ doing sth 不成缺傲幽,必需的
inevitable 不成避免的，必然发生的
identical统一的,identical to/with sb/sth与……完全不异的
2.选D consult with sb 与某人筹议,consult查阅
3. 选B entitle sb to sth(用于被动语态) 给某人获得某事物或权力
4. 选C discipline 练习体例,赏罚
confinement限制，禁锢
convention大会
5.选B substitute 庖代, 替用品
revival恢复，清醒