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1、高中英语外刊阅读语法填空March 91买助眠产品到底是不是在交智商税？The sleep-tech industry is waking up睡眠技术产业正在觉醒The rich world has a sleep deficit（不足）. Consumption of alcohol and caffeine is partly 1_(blame), as is exposure to phone and computer screens. Ironically, people are turning 2_ some of those same devices for help.Tiny
2、sensors are now more 3_(easy) embedded(嵌入) into wearable gadgets（设备） to observe users overnight.The 4_(combine) of more sleeplessness and better technology has led to a boom in the sleep-assistance industry. Global Market Insights, a research firm, reckons that worldwide revenues（收入） from sales of s
3、uch gizmos（设备） reached $12.5bn in 2020 and could be more than triple(三倍) that in five years. After all, everybody sleeps.But not everybody 5_(sleep) poorly. And the technology, though it is improving, remains far from perfect. Sleeping with a watch 6_(strap) to your wrist is irritating, and the batt
4、ery may die overnight.There are problems with sleep-techs business models, too. People can get bored of wearables, and 7_(frustrate) when the touted improvements fail to materialize(具体化).Sleep-tech may, scientists concede, help mild insomniacs （失眠患者）and sensitive sleepers decide 8_ they need clinica
5、l interventions(干预). But ultimately, Mr Fietze believes, no gadget can make your sleep 9_(good). If consumers in need of more shuteye reach a similar conclusion, sleep-tech 10_(investor) dreams of riches may turn into a profitless nightmare.keys:1 to blame 2 to 3 easily 4 combination 5 sleeps 6 stra
6、pped 7 frustrated 8 whether 9 better 10 investors2 5 signs its time to leave your job5 个迹象表明你是时候该离职了Big decisions, like a career change, should be approached 1_(thoughtful). Here are a few signs you might use 2_(evaluate) whether its time to truly move on:Its no longer encouraging your 3_(grow).Firs
7、t see if there are ways to craft your work or make changes within your current 4_(profession) environment before moving on. But if youve exhausted that path and can no longer grow in your profession, it might be time to move on.Youve achieved 5_ you set out to achieve.Sometimes, you may lack growth
8、in your current position because theres nothing 6_(leave) to aspire to.You actively look for ways to avoid your job.Sometimes, you need to power through something; but other times its necessary to take a temporary or permanent break. A profession should be something we approach with 7_(curious) and
9、anticipation(期待), not avoidance（逃避）.Its causing you to develop bad habits.Never let a professional environment change you for the 8_(bad) particularly on matters of character.Your workplace has become unhealthy.Workspaces with colleagues 9_ scream at or personally insult(攻击) you, for example, or whe
10、re you are worked to the point of physical collapse should, of course, inspire you to seek something new.And again, 10_(try) earnestly to reconceive of your work and craft it to be more purposeful is always the best first course if you are feeling stagnant.But letting go of the old is part of keepin
11、g life fresh and allowing purpose to change over time.keys:1 thoughtfully 2 to evaluate 3 growth 4 professional5 what 6 left 7 curiosity 8 worse 9 who 10 trying3 科学家新疗法让中年老鼠“重返青春”Ageing reversal: scientists rejuvenate tissues in middle-aged miceResearchers in the US treated 1_(health) mice with a fo
12、rm of gene therapy that refreshed older cells, 2_(make) the animals more youthful according to biological markers that are used to measure the effects of ageing. Repeating the trick in humans is far 3_ straightforward, but the findings will fuel interest in radical（激进） new therapies that aim 4_(slow
13、) or reverse(逆转) the ageing process as a means of tackling age-related diseases such as cancer, brittle bones(骨质疏松) and Alzheimers.A host of age-related diseases might benefit from this approach,” said Heinrich Jasper, a principal fellow and director at the US biotech firm Genentech.The scientists d
14、rew on previous work by the Japanese Nobel laureate Prof Shinya Yamanaka, 5_ showed that a mixture of four molecules (分子组合) known as Yamanaka factors (山中因子) can rewind adult cells into youthful stem cells（干细胞） that are capable of 6_(form) almost any tissue （组织）in the body.Writing in the journalNatur
15、e Aging, the US team 7_(lead) by Jasper and Prof Juan Carlos Izpisua Belmonte at the Salk Institute in California and the San Diego Altos Institute, found that mice who received Yamanaka factors for several months resembled younger animals in many ways, with their skin and kidneys in particular show
16、ing signs of rejuvenation(回春).The experiments showed that rejuvenation was more effective when the therapy 8_(give) for a long time seven to 10 months starting when the animals were 12 to 15 months old, equivalent to age 35 to 50 in humans. When older animals, equivalent (等同于)to 80 years old in huma
17、n terms, were treated for one month, the scientists saw little impact.Researchers are cautious about using Yamanaka factors in humans because previous work has shown that fully reprogrammed cells（完全基因重组的细胞） can turn into clumps （肿块）of cancerous tissue called teratomas（畸胎瘤）.The 9_(late) study shows t
18、hat partial reprogramming may be able to rejuvenate tissues without such risks, but further hurdles remain. Rather than using Yamanaka factors to rejuvenate aged humans, many scientists suspect that new drugs will be needed to 10_(partial) reprogram cells safely and effectively.keys:1 healthy 2 making 3 from 4 to slow 5 who6 forming 7 led 8 was given 9 latest 10 partially学科网（北京）股份有限公司