As it is，sleep is so undervalued that getting by on fewer hours has become a badge on Plus， we live in a culture that（36） to the late neighter， from 24 hour grocery store to ? shopping site that never close。 It’s no surprise， then， that more than half of American adults get the 7 to 9 hours of shut-eye every night as （37）by sleep experts。
Whether or not we can catch up on sleep on the weekend， say- is a hotly （38） among sleep researchers。 The latest evidence suggests that while it isn’t （39）， it might ? when Liu， the UCLA sleep researcher and professor of medicine， brought （40） sleep-rest people into the lab for a weekend of sleep during which they lagged about 10 hours per night。showed （41）in the ability of insulin（胰岛素） to process blood sugar。 That suggests up sleep may undo some but not all of the damage that sleep （42） causes， which is encouraging ? given how many adults don’t get the hours they need each night。 Still， Liu isn’t （43） to end the habit of sleeping less and making up for it later。
Sleeping pills，while helpful for some， are not（44） an effective remedy either。 “A sleeping pill will （45） one area of the brain， but there’s never going to be a perfect sleeping pill， because you couldn’t really replicate （复制）the different chemicals moving in and out of different parts ? the brain to go through the different stages of sleep，” says Dr。 Nancy Collop， director of the Em? University Sleep Center。
A） alternatively I） negotiated
B） caters J） pierce
C） chronically K） presumption
D） debated L） ready
E） deprivation M） recommended
F） ideal N） surpasses
G） improvements O） target
Innovation, the elixir (灵丹妙药) of progress, has always cost people their jobs. In the Industrial Revolution hand weavers were ___36___ aside by the mechanical loom. Over the past 30 years the digital revolution has ___37___ many of the mid-skill jobs that underpinned 20th-century middle-class life. Typists, ticketagents, bank tellers and many production-line jobs have been dispensed with,just as the weavers were.
For those who believe that technological progress has made the world a better place, such disruption is a natural part of rising ___38___. Although innovation kills some jobs, it creates new and better ones, as a more ___39___ society becomes richer and its wealthier inhabitants demand more goods and services. A hundred years ago one in three American workers was ___40___ on a farm. Today less than 2% of them produce far more food. The millions freed from the land were not rendered ___41___, but found better-paid work as the economy grew more sophisticated. Today the pool of secretaries has___42___, but there are ever more computer programmers and web designers.
Optimism remains the right starting-point, but for workers the dislocating effects of technology may make themselves evident faster than its ___43___. Even if new jobs and wonderful products emerge, in the short term income gaps will widen, causing huge social dislocation and perhaps even changing politics. Technology's ___44___ will feel like a tornado (旋风), hitting the rich world first, but ___45___ sweeping through poorer countries too. No government is prepared for it.
36. N) swept 37. B) displace 38. I) prosperity 39. H) productive 40. C) employed 41. F) jobless 42. M) shrunk 43. A) benefits 44. E) impact 45. D) eventually