試卷征集
加入會員
操作視頻

    Look up over the white sand beaches of Mauritius and you may see a huge sail.It's much like the kind used by kite surfers but the size of a three-bedroom apartment.The sail isn't a tourist attraction — it's creating electricity for this island off the east coast of Africa.
    Launched in December 2021 by SkySails Power,the massive wing is the world's first fully autonomous commercial "airborne wind energy"system.For the past two months,it has been delivering a little under its goal of 100 kilowatts — typically enough to power up to 50 homes.
    To harvest wind energy from the heights where wind blows fastest,the key may be to fly a kite.These systems come in container and can be dropped off wherever there's a road or dock (碼頭).They can also be tied to a fixed ship in deep waters.
    Their height is adaptable,so they can be moved up or down to wherever the wind blows the hardest,which often changes with the seasons.
    SkySails actually started back in 2001 with a different purpose:building soft kite wings to pull massive ships along at sea.In 2015 SkySails shifted focus to producing electricity with SkySails Power.
    SkySails' system relies on a roughly 150 square metre wing to ride on the wind.There are no turbines (渦輪機) up in the air,and the line isn't an electric wire.Instead,the energy is generated on the ground,from the pull on the line. "The brake on the winch (絞車) is generating the electricity, "says Fagiano,the chief officer.Software flies the kite autonomously in a figure-of-eight pattern to get the strongest pull possible to produce energy.The system then changes the wing's flight pattern so it can be pulled in with minimal resistance,expending a little energy to wind it back.This pattern repeats,creating far more energy than it consumes.
    The sails have less impact on the skyline than traditional turbines and are quieter too,says Fagiano.And they make economic sense for anyone currently paying more than ﹩ 0.30 per kilowatt hour from traditional generators.

(1)What is the most effective way for the system to get energy?
C
C

A.It is placed as high as possible.
B.It is tied to ship in the deep sea.
C.It is adjusted to the hardest winds.
D.It is fixed on the white sand beaches.
(2)What is SkySails' original intention to develop the system?
C
C

A.To beat traditional turbines.
B.To power the homes in need.
C.To pull the huge ships at sea.
D.To compete with other companies.
(3)What does paragraph 6 focus on?
B
B

A.Why turbines are abandoned.
B.How the SkySails' system works.
C.How software controls the wing.
D.Why the wing changes its flight pattern.
(4)Which of the following is a suitable title for the text?
B
B

A.SkySails:Pioneer in generating power.
B.SkySails:Competitor to traditional power.
C.The sails seeking the world's surest winds.
D.The sails generating the cheapest electricity.

【考點】說明文;環(huán)境保護
【答案】C;C;B;B
【解答】
【點評】
聲明:本試題解析著作權屬菁優(yōu)網(wǎng)所有,未經(jīng)書面同意,不得復制發(fā)布。
發(fā)布:2024/5/16 8:0:9組卷:3引用:2難度:0.3
相似題
  • 1.Earthquake rescue robots have experienced their final tests in Beijing.Their designers say that with these robots,rescue workers will be able to have more time to save more lives during an earthquake.
       This robot looking like a helicopter,is called the detectorbot.It's about 4 meters long,and it took about 4 years to develop the model.Its main functions(作用)are to collect information from the air,and send goods of up to 30 kilos to people stuck in an earthquake.
       This robot has a high quality 360 degree panoramic(全景的)camera.It can work day and night and will also be able to send the latest pictures from the quake area.Dr.Qi Juntong,from the Chinese Academy of Sciences,said, "Unlike other automatic machines,the most important feature of this robot is that it doesn't need a distant control.We just input the information of the earthquake-struck area to it,and then it takes off,and lands by itself.It flies as high as 3,000 meters,and as fast as 100 kilometers per hour."
       This robot has a different function — it can change as the environment changes.Its main job is to search for any signs of life in places where human rescuers are unable to go.
       As well as a detector(探測器) that finds victims(遇難者)and detects poisonous gas,a camera is placed in the 4-meter-long robot,which can work in the dark.
       Another use for the rescuers is the supply device,with its 10-meter-long pipe.People who are caught in the ruins will be able to get supplies including oxygen and liquids.
       Experts have said that the robots will go into production,and serve as part of the national earthquake rescue team as soon as next year.

    (1)What can we learn about the robot according to the passage?

    A.It hasn't been put into production so far.
    B.It is a machine with a length of 10 meters.
    C.It is a machine carried by a helicopter.
    D.It weighs about 30 kilos.
    (2)Why did Dr.Qi Juntong think this robot is different from the others?

    A.It has more functions.
    B.It has a more advanced camera.
    C.It can change as the environment changes.
    D.It can work by itself once given the information.
    (3)What is the passage mainly about?

    A.The appearance of the robot.
    B.An introduction to the robot.
    C.The reason for making the robot.
    D.Some information about earthquakes.

    發(fā)布:2024/10/26 8:0:1組卷:5引用:1難度:0.5
  • 2.    Have you learned a lot of English words?Well,many more are being created right now!
        Neologisms appear all the time,especially linked to new technology.This not only represents more work for you but also annoys some native speakers of English.
       Every age has its purists.Tom Chatfield,author of Netymology:A Linguistic Celebration of the Digital World,says that in the16th Century,many people disliked neologisms with foreign influences.The poet Richard Willies said that they were"smelling too much of the Latin".
       In the19th Century,the English poet William Barnes suggested that the word"photograph"should be replaced by"sun print"in order to achieve proper "Englishness".It didn't catch on.
       Now the debate about speech and writing is livelier than ever,says Mr.Chatfield.He thinks the Digital Revolution is as significant as the Industrial Revolution,and there are many inventions and processes which have to be named.
       From text messages and email to chat rooms and video games,technology has over the past few decades brought about an extraordinary new area of verbal exchange.It is not so much about foreign influence but informality and abbreviation.The Oxford English Dictionary acknowledged in 2011 the use of initials such as"oh my God"(OMG),"laughs out loud"(LOL) and"for your information"(FYI).
       We are moving away from spoken words and towards the act of typing on to a screen.We've already grown so used to saying phrases like dotcom out loud that we forget we are speaking punctuation marks.And punctuation took a life of its own with emotions.
       The speed of communication today is matched by the speed with which new words are taken up.Bicycles,automobiles and telephones took decades to become a part of daily life as words and objects.With online offerings,new words are adopted in a matter of months.The verb"to google"has become a part of dozens of languages across the world.
       Where habit leads,language follows.Only time will tell what lasts.Meanwhile,as a student of the English language,you've got a lot of catching up to do.

    (1)What does the underlined word"Neologisms"in Paragraph 2 refer to?

    A.New words.
    B.Old words.
    C.Strange words.
    D.Technological words.
    (2)How does the author prove his opinion?

    A.By experimenting.
    B.By giving examples.
    C.By asking and answering.
    D.By telling stories.
    (3)What's the author's attitude to the new words?

    A.Disappointed.
    B.Concerned.
    C.Subjective.
    D.Objective.
    (4)Which of the following can be the best title for the text?

    A.How to Learn New Words
    B.How to Invent New Words
    C.New Words,Good or Bad
    D.New World,New Words

    發(fā)布:2024/10/25 17:0:1組卷:0引用:0難度:0.5
  • 3.    Reading is a complex and crucial skill that impacts the youth's ability to perform as students.Therefore,it's important to develop reading skills during childhood.A team of researchers focused on the effect of whole-body learning in instruction,known as embodied learning.
        The research included 149 children,aged 5 to 6,who had just started school.They were divided into three groups:one that stood up and used their whole bodies to shape letter sounds;a seated group that shaped letter sounds with their hands and arms;and a control group that received traditional,seated instruction during which they wrote letters by hand.
        "Our research showed that children who used their whole bodies to shape the sounds of letters became twice as proficient at letter sounds that are more difficult to learn as those who received traditional instruction" says PhD student Linn Damsgaard of UCPH's Department of Nutrition,Exercise and Sports.
        With regard to difficult letter sounds,she adds, "There are many difficult letter sounds in Danish.These sounds are particularly important because once children become skilled at them,they will be better readers.
        Associate professor Jacob Wienecke,who led the study,explains,the primary goal is to learn more about which methods can be used to give beginner readers a good start.The idea is that if,through play and movement,we can learn where their strengths truly lie,we'll create a form of learning that combines reading with play,and that's truly positive."
        Previously,the researchers showed that the children felt more motivated by teaching methods which included physical movement.Jacob Wienecke hopes this will provide an opportunity to inspire teachers and school managers to prioritize movement across subjects.
        The study also investigated whether a direct effect of embodied learning could be found on children's reading of words.This was not possible,which might be due to the fact that the children were at such an early stage of their literacy development that they could not yet use their knowledge of letter sounds to read words.

    (1)What were the participants required to do in the study?

    A.To pick out difficult letter sounds in Danish.
    B.To learn new letters through repeated writing.
    C.To learn letter sounds using different approaches.
    D.To memorize some letter sounds as soon as possible.
    (2)How can embodied learning get children actively involved?

    A.By combining learning with games.
    B.By offering them chances to cooperate.
    C.By inspiring them to overcome difficulties.
    D.By explaining instructions to them patiently.
    (3)What does the underlined word "proficient" in Paragraph 3 probably mean?

    A.terrible.
    B.skilled.
    C.delighted.
    D.fascinated.
    (4)What does Jacob expect of the research finding?

    A.Encouraging educators to apply it to teaching.
    B.Enabling researchers to carry out further studies.
    C.Urging schools to pay attention to physical exercise.
    D.Promoting harmonious teacher-student relationships.
    (5)What does the last paragraph intend to tell us?

    A.Children prefer learning step by step.
    B.Children are too little to use their knowledge smartly.
    C.Children lack enough practice to get fully improved.
    D.Children's learning still relies on adults' instruction.

    發(fā)布:2024/10/26 13:0:2組卷:15引用:1難度:0.5
小程序二維碼
把好題分享給你的好友吧~~
APP開發(fā)者:深圳市菁優(yōu)智慧教育股份有限公司 | 應用名稱:菁優(yōu)網(wǎng) | 應用版本:4.8.2  |  隱私協(xié)議      第三方SDK     用戶服務條款廣播電視節(jié)目制作經(jīng)營許可證出版物經(jīng)營許可證網(wǎng)站地圖本網(wǎng)部分資源來源于會員上傳,除本網(wǎng)組織的資源外,版權歸原作者所有,如有侵犯版權,請立刻和本網(wǎng)聯(lián)系并提供證據(jù),本網(wǎng)將在三個工作日內改正