大学英语六级阅读历年真题训练unit5(A)

ps it is a race against time” (Para. 3, Line 2) the author means           .
A) they have to swim fast to avoid danger in the rapidly evaporating lake
B) they have to swim fast to catch the animal organisms on which they survive
C) they have to multiply as many as possible within thirteen days
D) they have to complete their life cycle within a short span of time permitted by the environment
 
23. The passage mainly deals with         .
A) the life span of the Mojave shrimps              C) the importance of water to life
B) the survival of desert shrimps                   D) life in the Mojave Desert
 
24. The word “dormant” (Para. 4, Line 3) most probably means         .
A) inactive           B) strong            C) alert             D) soft
 
25. It may be inferred from the passage that         .
A) appearance and size are most important for life to survive in the desert
B) a species must be able to multiply quickly in order to survive
C) for some species one life cycle in a year is enough to survive the desert drought
D) some species develop a unique life pattern to survive in extremely harsh conditions/

Questions 26 to 30 are based on the following passage:
 
Opportunities for rewarding work become fewer for both men and women as they grow older. After age 40, job hunting becomes even more difficult. Many workers stay at jobs they are too old for rather than face possible rejection. Our youth-oriented, throw-away culture sees little value in older people. In writer Lilian Hellman's words, they have “the wisdom that comes with age that we can't make use of.”
Unemployment and economic need for work is higher among older women, especially minorities, than among younger white women. A national council reports these findings: Though unemployed longer when seeking work, older women job-hunt harder, hold a job longer with less absenteeism (缺勤), perform as well or better, are more reliable, and are more willing to learn than men or younger women. Yet many older women earn poor pay and face a future of poverty in their retirement years. When “sexism meets ageism, poverty is no longer on the doorstep — it moves in,” according to Tish Sommers, director of a special study on older women for the National Organization for Women.
Yet a 1981 report on the White House Conference on Aging shows that as a group, older Americans are the “wealthiest, best fed, best housed, healthiest, most self-reliant

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