相关试卷

  • 1、A team of AI researchers at Microsoft, working with colleagues from the Pacific Northwest National Laboratory (PNNL), has used AI to develop a battery that uses less lithium (锂).

    Lithium-ion (锂离子) batteries have become the industry standard for electronic devices and electric vehicles and are expected to play a major role in the conversion to green power. But lithium is expensive, which has led multiple teams across the globe to look for alternatives. In this new effort, the research team looked for ways to reduce the amount of lithium used in batteries.

    This would normally take a long time because of the detailed approach required. To reduce the workload and the time needed to process millions of alternatives, the researchers turned to AI. Noting that AI applications are good at using massive amounts of data to learn how to do things, the researchers designed one that could study millions of materials that might be added to a lithium battery to replace some amount of the lithium and test the results for factors such as stability and how a battery using a given material would behave.

    Using this approach, the research team reduced the list of possible alternatives to just a few hundred possibilities. They then turned to materials scientists at PNNL for advice on how to reduce the possibilities even further. The scientists suggested adding more specific screening criteria and more elimination rounds. After adopting that advice, the team arrived at a promising alternative and an approach that involved replacing approximately half of the lithium atoms in a battery with sodium (钠) atoms.

    After using the new approach to build a working battery, the researchers found it had lower conductivity than was needed — but they also believe that there is room for improvement. They plan to continue working on the approach and the process they used to find their solution, which they suggest could eventually solve other types of material processing problems.

    (1)、Why did the research team want to develop a battery that uses less lithium?
    A、To reduce carbon emissions. B、To meet the industry standard. C、To decrease the cost of a battery. D、To generate electricity efficiently.
    (2)、What do the underlined words "this approach" in paragraph 4 refer to?
    A、Using AI to find possible materials. B、Adding other materials to a battery. C、Developing an application to collect data. D、Replacing lithium in a battery with sodium.
    (3)、How did the research team finally find a promising alternative?
    A、By seeking funding from PNNL. B、By asking experts for advice. C、By turning to Microsoft for help. D、By cooperating with other scientists.
    (4)、What do the researchers think of the approach?
    A、Effective and workable. B、Complex and impractical. C、Challenging and demanding. D、Innovative and groundbreaking.
  • 2、GRAND CENTRAL

    Train Times

    Please check before you travel. Visit www.grandcentralrail.com/travelling-with-go or download our app to find live travel updates.

    WEST RIDING Bradford Interchange to London Kings Cross

    Departures

    Bradford Interchange

    06:59            07:58                 10:23               14:50

    Low Moor

    07:05            08:04                 10:29               14:56

    Halifax

    07:12                 08:11                 10:40          15:03

    Brighouse

    07:22                 08:21                 10:50          15:13

    Mirfield

    07:29                 08:30                 11:02          15:20

    Wakefield Kirkgate

    07:47                 08:56                 11:20          15:38

    Pontefract Monkhill

    08:02                    -                           11:34          15:52

    Doncaster

    08:31                 09:35                 12:04          16:23

    London Kings Cross

    10:07                 11:14                 13:44          18:05

    NORTH EAST -Sunderland to London Kings Cross

    Departures

    Sunderland

    06:46       08:53       10:17       12:30       15:30       17:30

    Hartlepool

    07:15       09:20       10:44       12:54       15:54       17:53

    Eaglescliffe

    07:35       09:40       11:04       13:15       16:15        18:20

    Northallerton

    07:55       09:59       11:23       13:40       16:43        18:54

    Thirsk

    08:05       10:08       11:32       13:49       16:33        18:42

    York

    08:22       10:26       11:54        14:08        17:10        19:12

    London Kings Cross

    10:14       12:31       13:53        16:07        19:07        21:06

         Useful Information

    • Buy your train tickets with no booking fees at www.grandcentralrail.com, download our app or call 0354 603 4852 (Option 1).

    • Discounts are available for groups. Simply visit www.grandcentralrail.com/ groups for more information.

    • Book assisted travel by calling 0354 603 4852 (Option 3). Please try to provide at least 2 hours' notice if assistance is required, Seating plans for our trains can be found at www, grandcentralrail.com/help/travel-assistance.

    • You can now reserve a space for your bike before you travel by calling 0354 603 4852 (Option 4 then Option 2). More information atwww.grandcentralrail.com/on-board /cyclists-luggage.

    •   Frequent travellers could save money by using multi-buy discount tickets for journeys to/ from London, See www.grandcentralrail.com/tickets/ multi-buy-tickets for details.

    (1)、How long does it take to go from Halifax to Brighouse by train?
    A、10 minutes. B、20 minutes. C、Half an hour. D、An hour.
    (2)、When does the last train leave Sunderland for London Kings Cross?
    A、14:50. B、17:30. C、18:05. D、21:06.
    (3)、Which option should you select after calling to buy a ticket?
    A、Option 4. B、Option 3. C、Option 2. D、Option 1.
  • 3、假定你是李华。现向你校英文报纸投稿,分享你的运动故事,包括以下要点:

    1. 你如何开始这项运动;

    2. 描写一次难忘的运动经历;

    3. 运动给你的人生带来哪些积极的改变。

    注意:

    1. 文章的标题已给出;

    2. 写作词数应为120左右;

    3. 请勿出现所在学校或城市的任何信息。

    Sports and Me

    ___________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

  • 4、请在方框中选择合适的单词或短语,并用其正确形式填入短文的空格中,使短文完整连贯。注意:(1)每个选项只能使用一次;(2)方框中有一个多余选项。

    ruin   destroy   effort   emergency   on hand   in the open air   erupt   affect   shock   cut off   give out

    I will never forget the day Mount Vista. It began with a loud roar, and soon ash darkened the sky. We watched in as the river of mud and lava swept away everything in its path—houses, cars, and trees in moments. Our town was reduced to.

    Our only choice was to escape to the community center, which served as an center. For the first night, we had to sleep because the shelter was so crowded. Thankfully, rescue workers had basic supplies, like water and food. The disaster continued to thousands of people, power and water.

    Now, looking at the disaster, it seems as if a terrible dream. But the recovery is real, with volunteers working tirelessly to help us rebuild our lives.

  • 5、People may choose different (path) in life, but everyone hopes to achieve their own dreams. (所给词的适当形式填空)
  • 6、 (compare) with modern communication, traditional face-to-face conversations are more likely to express our true emotions. (所给词的适当形式填空)
  • 7、His outgoing and friendly (personal) makes it easy for him to make friends with others. (所给词的适当形式填空)
  • 8、A look of (anxious) crossed her face when she learned about the upcoming exam. (所给词的适当形式填空)
  • 9、Every student should be treated (equal), regardless of their family background and learning performance. (所给词的适当形式填空)
  • 10、It was only in his darkest hours that he (refer) to himself in the third person. (所给词的适当形式填空)
  • 11、The movie, (base) on a true story, is very popular among young people. (所给词的适当形式填空)
  • 12、After keeping a balanced diet and exercising regularly, she became much (slim) than before. (所给词的适当形式填空)
  • 13、At the exhibition, (variety) of flowers drew the attention of the audiences. (所给词的适当形式填空)
  • 14、Preparing for the college entrance exam is the most (stress) period for high school students. (所给词的适当形式填空)
  • 15、The student gave a clear and detailed (describe) of her travel experience in Beijing. (所给词的适当形式填空)
  • 16、A strong earthquake (strike) the area last night, causing great damage to many buildings. (所给词的适当形式填空)
  • 17、His courage in facing big challenges is truly (admire) and worth learning from. (所给词的适当形式填空)
  • 18、Julie, an impressive (compete) in the English speech contest, did not get first place in the final. (所给词的适当形式填空)
  • 19、The athlete got a serious (injure) during the football match and had to leave the field. (所给词的适当形式填空)
  • 20、It was for this reason that it became an o website in 2005, recognized by the government. (根据首字母单词拼写)
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