题目内容：

    Since 2008, the average labour-force participation rate of 55- to 64-year-olds in OECD (Organization for Economic Cooperation and Development) countries has risen by eight percentage points. A new OECD report, “Working Better with Age”, points out that the employment of older workers is ______, if prosperity is to be maintained. That can be taken as a sign that our society is finally ______ the value of its older employees.

Retirement gives you the chance to sleep late and avoid the morning rush hours. No longer do you have to sit through endless meetings or check email frequently. But work can keep the mind active and gives people a ______ in life. The first month of retirement may seem pleasant, but ______ is sure to come. Grand plans to learn languages and travel the world can quickly lose their appeal. ______, the company of colleagues provides a social network; spending all week at home can lead to loneliness.

Working longer should be easier now that most jobs require ______, rather than manual, labour. Of course, many people are working longer not because they enjoy what they do, but because they cannot afford to ______. That is not just because governments have been pushing up the state retirement age. ______, the average age at which people actually retire differs from the official age by several years. In part, that is because many people do not rely on the state pension as their only source of income and need work-related pensions to supplement it.

However, companies are gradually ______ pensions linked to final salaries with “defined contribution” schemes. Under the latter, workers end up with a pot of savings at retirement that needs to be ______. The income from such pots has been reduced by very low interest rates. Women tend to have smaller retirement pots (thanks to their years spent raising children), making their difficulties even more ______. They need to keep working.

Older workers may feel ______, particularly when it comes to promotion. Two issues seem to hold ______ back. The first is that older workers tend to ______ higher salaries, because of the seniority system. The second is a ______ of skills；one in three 55- to 65-year-olds in OECD countries either lack computer experience or cannot pass technology tests. Such problems can be resolved with proper training, but the over-55s should take it upon themselves to keep up with technological changes.

1.A.shortsighted B.vital C.adequate D.unnecessary

2.A.recognizing B.assessing C.questioning D.transforming

3.A.frame B.choice C.lesson D.purpose

4.A.liberty B.boredom C.priority D.motivation

5.A.However B.Instead C.Therefore D.Furthermore

6.A.mental B.simple C.physical D.routine

7.A.proceed B.continue C.persist D.quit

8.A.In conclusion B.In other words C.In practice D.In particular

9.A.replacing B.furnishing C.increasing D.combining

10.A.registered B.reinvested C.refunded D.removed

11.A.personal B.severe C.emotional D.practical

12.A.competitive B.dominant C.distinguished D.disadvantaged

13.A.employers B.researchers C.employees D.female workers

14.A.command B.ensure C.oppose D.ignore

15.A.range B.discipline C.shortage D.set