届山西三区八所重点中学高二第二次适应性考试英语有解析.docx

1、届山西三区八所重点中学高二第二次适应性考试英语有解析绝密启用前2017届山西三区八所重点中学高二第二次适应性考试英语英语科试题第I卷 表达题（120分）一、阅读理解：共15题每题2分共30分AThe speed of light is often called a constant(常量). New experiments show that may not be true, even within a vacuum. Sometimes, light slows a bit.The new research is very impressive work, Robert Boyd told

2、Science News.An optical(光学的)physicist at the University of Rochester in New York, he did not work on the study. He speaks of the new finding: Its the sort of thing thats so obvious; you wonder why you didnt think of it first.Light travels as particles and as waves. Photons(光子)are the name given to t

3、hose particles that represent the smallest possible amount of light. At their fastest, photons travel nearly 300 million meters (almost 1 billion feet) in a single second. Thats fast enough to get to the moon and back in about 2.6 seconds. Scientists had long known, though, that they could slow ligh

4、t photons down by shining them through a material such as glass or water.Still, light moving through a vacuum has usually been assumed to move at a peak speed. That would seem to make sense. After all, a vacuum is a space with nothing in it to slow light down. In a new study, however, scientists sho

5、w that even racing through a vacuum, light can slow.So the speed of light is more of a universal speed limit than an absolute rule for how fast photons travel, the new data suggest.Miles Padgett led the new study. As an optical physicist, he works at the University of Glasgow in Scotland. He and his

6、 colleagues showed that the key to slowing light is to change the shape of a light wave. Padgett described how they did this in a paper published online January 22 in Science.His team raced a pair of photons. One traveled unchanged through a cable made from optical fibers. The other passed through a

7、 pair of devices that acted like lenses. A lens changes light: It can focus a spread-out beam of light on a point, for instance. The second photon passed through one device that changed the shape of its wave and another that changed it back to its original form.The first photon won the race. The sec

8、ond photon came in a tiny bit later, several quadrillionths(千万亿分之一) of a second late for every meter of the race. The difference wasnt huge, but it was enough to measure. Most technology would not pick up such a small change, but it could be important to scientists who study short pulses of light.Im

9、 not surprised the effect exists, Boyd told Science News. But its surprising that the effect is so large and strong.1、What can we learn from the first two paragraphs?A.Robert Boyd first slowed the speed of light down.B.The new experiments are not convincing.C.The new finding is striking and amazing.

10、D.The speed of light is always unchanged.2、What does the study led by Miles Padgett mainly suggest?A.Light travels fastest through a vacuum.B.Theres a minimum limit to the speed of light.C.Devices like lenses slow down the speed of light.D.Light photons cant travel through lenses easily.3、The most i

11、mportant factor in changing the speed of light is to transform_.A.the shape of a light waveB.the length of a light waveC.the direction of a photonD.the structure of a photon4、The passage mainly tells_.A.light travels slowest through a lensB.light can be slowed down in a vacuumC.why the shape of a li

12、ght wave can be changedD.what optical research looks like currentlyBTen years ago, Dalla-Camina worked 16 to 18 hours a day and literally lived on a plane. A senior executive at IBM, Dalla-Camina gave up her job handling a $ 50 million budget as head of marketing to figure out a lifestyle that didnt

13、 make her feel like she was drowning. Forget the ideal of having it all. Despite working for a company that gave her flexibility with her schedule, the single mother was barely surviving.Dalla-Camina had a sense that she wasnt alone. Her new study now proves it. The Australian native polled 1,000 Am

14、erican working women aged 18 to 55 and the results are discouraging. Roughly 70% of women dont believe they have the support to make themselves happy inside and outside of work and 75% dont believe they can have it all. In fact, over half of respondents described their life in the past year as hangi

15、ng on by a thread. Whats more is that the results are hardly affected by age or whether a woman had children or not.The fact that we are having discussions about leaning in when women are saying they are barely surviving is astonishing, Dalla-Camina says. There are so many women who think that if th

16、ey keep their head down and continue working hard, someone will notice and opportunities will come to them.Dalla-Caminas study points to a severe gap between what working professionals need from their employers and what employers are providing. A recent Boston College study discovered that workplace

17、 flexibility is decreasing and less than one-third of employers felt they gave options for employees to have alternative work models. Even if a company offers flexible work arrangements to employees, 70% of women think its not possible to be successful in work and home.Too many companies are stuck i

18、n a face-to-face employee model as opposed to an outcome-based model, says Dalla-Camina. Until alternative work plans like working part-time or working from home become rooted in the DNA of corporate America as opposed to being viewed as special treatment nothing will change, she adds.Jody Miller, C

19、EO of the consulting firm Business Talent Group(BTG), was hardly surprised by Dalla-Caminas findings. Miller sees firsthand the benefits of building a company that thinks about work differently. At BTG, half the employees work from home, so there is no shame or punishment for not getting in face tim

20、e with the boss; indeed, employees are rewarded for the quality of their work, not the amount of time spent on tasks. And a majority of the employees are part-timers and work in a project-based model. Productivity has gone through the roof since BTG improved its unique work environment, according to

21、 Miller. But telling workers to lean in is just tinkering at the margins, said Miller. We need fundamental structural changes in the workplace to make it manageable for all workers.5From the first paragraph we can see Dalla-Camina_.A.once worked in an airline companyB.earned a salary of $50 million

22、at IBMC.worked flexible hours in the companyD.had all she wanted before leaving the company6The expectations of women professionals are hard to meet in that _.A.the life-work balance is difficult to achieveB.most employers have prejudice against themC.the old work model is rooted in many companiesD.

23、many employers cant spot the great potential of them7Which of the following may be contrary to Dalla-Caminas opinion?A.What employers do for women is far from enough.B.Most of the professional women are struggling to survive.C. Many women try in vain to get their desired opportunities.D.It should be

24、 a privilege for women to have alternative work plans.8It can be inferred from the last paragraph that_.A.employees at BTG dont spend too much time on tasksB.BTG only allows women professionals to work from homeC.it wont be long before employers follow BTGs work modelD.BTG attaches more importance t

25、o the outcome than the processCLadybug celebrated its twenty-fifth anniversary this month. For twenty-five years, the magazine has been trying to reflect the world of young children and make it a little broader through stories, poetry, art, and various activities.Each issue of this magazine encourag

26、es kids to take a closer look at the people and places around them. Ladybug invites children to bring their whole selves their acute ear for language and keen eye for illustrations(插图), as well as their wonderful sense of play and great power of imagination when they sit down and start to put their

27、heart into reading.The significance of Ladybugs long history is clearest to me, a man who is in charge of the edition of this magazine, when I talk to parents of children who have grown up. They often respond with surprise: Ladybug? With the poems, and the stories, and the crafts to cut out, what wi

28、ll you do next? We used to read that magazine when the kids were little. And then there is a moment of silence, as if the father is searching for a particular poem, or the mother is remembering the feel of a restless childs head when it finally settled against her shoulder. It is a great pleasure to

29、 contribute to a magazine that families have put in their memory.Some anniversaries are formal, but at Ladybug, we approached the September issue as if it had been a birthday party. It is full of lively company, jokes, music, stories and poems that celebrate special days and growing up.In this spiri

30、t, we offer one of our favorite birthday stories, Big Bear and Skinny Rabbit, from an issue that came out a few years ago. It is part of a series about two friends who couldnt be more different in temperament(气质), yet more perfect for one another.9What does the author probably do according to the pa

31、ssage?A.A businessman.B.An editor.C.A professor.D.An artist.10What does the third paragraph mainly talk about?A.Many children fall asleep with the stories in Ladybug being read.B.More contents are expected to be contained in Ladybug.C.Most parents worry about the development of Ladybug.D.Many parent

32、s can remember Ladybug with affection.11What will probably be talked about following the last paragraph?A.A story published before.B.The new issue of Ladybug.C.A collection of poems.D.An introduction of Ladybugs birthday.DWhen my brother and I were young, my mom would take us on Transportation Days.It goes like this: You cant take any means of transportation more than once. We would st