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题型:阅读理解 题类:常考题 难易度:普通

陕西省汉中市(略阳天津高级中学、镇坝中学、留坝中学、西乡二中等9所学校)2020届高三上学期英语第一次校际联考试卷

阅读理解

    When a laptop or smartphone battery starts losing its power, the only options are to buy an expensive replacement, or just keep it plugged in all the time. But a woman Mya Le Thai may have found the answer to this problem.

    Thai was frustrated that the batteries for her wireless devices degraded(降级)over time, until they failed to charge fully. She did not like having to keep her laptop connected to an electrical outlet to keep it powered on. So, she decided to do something about that problem. At first, she and her team at UC Irvine thought about inventing a new battery. But as they experimented, Thai discovered something that might permit lithium—ion(锂离子)batteries to last forever.

    Lithium-ion batteries power most wireless devices. Over time, the batteries lose the ability to hold a charge. Most of these batteries have a life span of about 7,000 charging cycles before they die. One of the reasons lithium—ion batteries degrade is their use of nanowires to carry electricity. Nanowires are extremely thin. A human hair is thousands of times thicker, for example. Nanowires are extremely efficient carriers of electricity, which makes them useful in batteries.

    But, Thai had a theory—the nanowires might last longer if covered with a gel(凝胶). She and her team tested this theory. "It was a long process and a lot of work, "Thai said. The team tried many coverings for the wires. PMMA, a type of plastic, was one of them. The nanowires were coated with PMMA and cycled through charges 200, 000 times. The PMMA-coated nanowires showed no evidence of damage. The results suggest that batteries could last forever, without losing charging ability.

    Thai hopes to continue her research to understand why this gel works so well and to see if any other gel could create better results and she is enjoying the publicity about her discovery. She said she never expected her research to get media coverage. "It's kind of cool," she said. "I'm really glad people are showing interest in my work and not just in the work itself, but also in technology and energy."

(1)、Why did Mya Le Thai work on lithium-ion batteries?
A、She disliked the batteries for her laptop. B、Her team were assigned to invent a new battery. C、Many people thought batteries were too expensive. D、The batteries would soon lose the function to charge fully.
(2)、What can we infer about nanowires?
A、They last only 7,000 charging cycles. B、They are too weak to carry electricity. C、They are not suitable to use in batteries. D、Their thinness is a cause of batteries degrade.
(3)、What might be Thai and her team's breakthrough?
A、Coating nanowires in gel. B、A new kind of battery. C、New materials for batteries. D、A new way of charging batteries.
(4)、What may be the best title for the passage?
A、The options of batteries for wireless devices B、A woman invents a life—long battery. C、Mya Le Thai discovered Nanowires D、The reasons for batteries degrading
举一反三
阅读理解

Dear Friend ,

    The recent success of children's books has made the general public aware that there's a huge market out there .And there's a growing need for new writers trained to create the $3 billion worth of children's books bought each year … plus stories and articles needed by over 650 publishers of magazines for children and teenagers .Who are these needed writers ? They're ordinary folks like you and me .But am I good enough ?

    I was once where you might be now . My thoughts of writing had been pushed down by self-doubt , and I didn't know where to turn for help .

    Then , I accepted a free offer from the Institute to test my writing ability , and it turned out to be the inspiration I needed .

    The promise that paid off

    The Institute made the same promise to me that they will make to you , if you show basic writing ability :

    You will complete at least one manuscript(手稿)suitable to hand in to a publisher by the time you finish our course .

    I really didn't expect any publication before I finished the course , but that happened . I sold three stories . And I soon discovered that was not unusual at the Institute .

    Since graduation , I have authored 34 nationally published children's books and over 300 stories and articles .

    Free test and brochure

    We offer a free ability test and will send you a copy of our brochure(小册子)describing our recognized home-study courses on the basis of one-on-one training .Realize your writing dream today . There's nothing sadder than a dream delayed until it fades forever .

Sincerely ,

Kristi Hill , Instructor

Institute of Children's Literature

阅读理解

                                                                                                     What's On?

Trouble in Mind

Alice Childress won an Off-Broadway award in 1956 for this story of a black actress rehearsing(排练) a play with a white director who increasingly finds it impossible for the show to go on. Tanya Moodie and Joseph Marcell star in the play directed by Laurence Boswell.

8.30p.m.—10.30p.m., Theatre Royal. Box office: 01225 448844.

Lazarus

Inspired by the sci-fi (science fiction) novel and movie, The Man Who Fell to Earth, this musical deals with a hero, Thomas Newton. Likely to be the autumn's hottest ticket, the score includes new songs composed by Bowie.

7.00p.m.—9.00p.m., King's Cross theatre. Box office: 0844 871 7604.

The Gaul

On the night of 8 February 1974, a fisherman FV Gaul disappeared off the coast of Norway. For people on board, waiting for news was great suffering. Theories began to come up, including the possibility that the boat had fallen victim to cold war. Even when he was discovered, many still felt there were questions that remained unanswered. Mark Babych directs Janet Plater's play.

8.00p.m.—11.00 p.m., Royal Shakespeare theatre. Box office: 01482 323638.

The Suppliant Women

It is a new version of Aeschylus's 2,500-year-old play about a group of women seeking shelter who make the long journey to escape forced marriage. It was written by David Greigand directed by Ramin Gray. An ancient piece asks a contemporary question: when we are introuble, who will open their doors and give us a harbor?

8.30p.m.—10.00p.m., Hampstead theatre. Box office: 0131 248 4848.

阅读理解

    On Sept. 19 the Westchase Elementary PTA(Parent-Teacher Association)will hold its Wizard Walk. The Wizard Walk is a locally organized, healthy alternative to traditional product sales that will raise money to support all PTA programs and events for the year. Remaining money will be applied to an on-going capital campaign to build a new playground.

    The Wizard Walk will take place on Wednesday, Sept. 28, from 8 a. m. to noon at the Westchase Recreation Center Field.  Volunteers will be needed throughout the event.  Look for more Wizard Walk information and volunteer sign-up links in your student's folder, or contact(联系)Laura Kohler at president@ westchasepta. org.

    The PTA is also holding a year-long Spirit Stick fundraiser(资金筹集活动). Spirit Sticks are small and students can display them on a key ring on their backpacks, which represent a variety of interests and accomplishments. There will be many ways to earn a Spirit Stick (good grades, great behavior, exceptional attendance, etc.)and opportunities to purchase the limited edition sticks for just $1 every Friday in the courtyard. For more information, contact Nikki Pivnichny at fundraising@ westchasepta. org.

    In addition to new fundraising programs, the PTA is partnering with our Guidance Counselor, Mrs. Kiersten Rivenburg, on a new campaign called Kindness Counts. Look for new recognitions and rewards as we continue to promote kindness from our children, staff and parents throughout the year. For more information, contact Laura Smith at kindnesscounts@ westchasepta. org.

    Now in its eighth year, the After-School Enrichment Program(ASE)is bringing back some favorite programs and offering some new ones. Students will have the opportunity to explore and develop a variety of new interests. Class schedules will be available soon. Registration starts on Sept. 7. Fall session begins Sept. 21 -22. For more information, contact Jennifer Newman at ase@ westchasepta. org.

阅读短文,从每题所给的A、B、C和D四个选项中,选出最佳选项。

    There are excellent reasons for anyone to seek out the optimistic. Optimists experience better health outcomes, live longer and are more satisfied with their relationships. Optimism enables people to hold on in the face of difficulty, while pessimism leaves them depressed and even expecting failure.

    I want that hopeful, optimistic outlook for my children. But many times we may feel pessimistic. The result of negativity makes me worry that my kids' future will be uncertain. Fortunately, research suggests ways to help our children grow up with an optimistic attitude and maintain a happier outlook ourselves.

    Humanity has improved by many measures, but that success has become the water in which we swim, and like fish, we take the water for granted. While we fail to notice the positive, our brains naturally emphasize on the negative. With practice, we can help our brains to give the good stuff equal weight. Dr. Hanson's advice: when you hear a great story or achieve something in your own life, deliberately rest your mind on that experience and stay with it. Sink into that feeling as it sinks into you. Describe what you're doing to your kids, and encourage them to dwell on their joys and pleasures as well.

    Following the "big scary" news can leave us feeling helpless. Find something in your area that makes you feel hopeful, and make it a part of your family life. Researchers found that when people with a pessimistic outlook use positive language to describe situations they find upsetting, their feelings about the situation become more positive. That's something we can try at home.

    Raising optimistic kids is hard because it demands that parents abandon the pessimistic perspective that's the easiest response to pessimistic times. Put your energy into making sure you and your family are a part of the world around you. That might mean simply joining and being part of local clubs that feed our natural human need for connection (not of the digital kind).

阅读理解

When faced with the decision to get out of bed or have a few more minutes of sleep, which do you choose? Believe it or not, that decision could make a world of difference in the rest of your day.

About 85 percent of Americans use an alarm clock to wake up in the mornings, according to sleep researcher Till Roennenber. And while there are no official numbers on snoozing (打盹), a quick survey of social media makes it clear that hitting the snooze button is a popular pastime.

As to how the snooze button will affect your day, scientists have mixed opinions. Some scientists think people who hit the snooze button in the mornings are actually clever, creative and happy while some said that hitting the snooze button will ruin your life, or at the very least your day. "I feel that hitting the snooze button has got to be one of the worst things that ever happened to human sleep," researcher Jonathan Horowitz said. "The chances of you 'snoozing' and actually experiencing a meaningful rest are close to zero."

According to some sleep experts, when hitting the snooze button, you are in fact confusing your body and mind, and throwing yourself into a deep state of being sleepy. The body needs some time to wake up, so, when returning to what will be a light sleep for a brief period of time, you are putting your body back into a sleep mode before waking it again. At that point your body won't know what it wants, resulting in a sort of half awaken state.

If you really want to take advantage of an alarm clock, the key is to form a healthy sleep cycle. Focus your efforts on getting enough sleep each night and waking up at the same time each day so that when your alarm goes off you feel rested.

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