11． （1）A.Workers explore flexible approaches to fighting sleepiness at work.
B.Companies need more facilities for their workers' on﹣site napping.
C.Companies encourage their workers to nap on the job.
D.Workers demand more care about their sleep quality.
（2）A.Go home for a 20﹣minute nap.
B.Take a 10﹣minute nap at 3 p.m.
C.Do sports with personal trainers.
D.Sleep in a room with a bed and pillows.
（3）A.Taking a nap improves his work efficiency.
B.Using a calculator prevents him making mistakes.
C.He works longer than any other employee in the firm.
D.He works as an account ant in a consulting company.
Answer key
C B A