切換成空白卷

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接棒學院

接棒學院 CodingWizard Academy

Rockets · 火箭單元測驗卷

太空 Space · CEFR B1 · 滿分 100 分

教師用 · 含解答
班級 ______________座號 __________姓名 ______________日期 ______ / ______得分 __________

  1. 一、單字配對（20 分）

    把右邊的代號填進左邊的括號裡。

    1. 1.thrust(    )
    2. 2.reaction(    )
    3. 3.opposite(    )
    4. 4.fuel(    )
    5. 5.stage(    )
    6. 6.payload(    )
    7. 7.launch(    )
    8. 8.reusable(    )
    9. 9.vacuum(    )
    10. 10.oxygen(    )
    1. A.推力
    2. B.燃料
    3. C.發射
    4. D.氧氣
    5. E.相反的
    6. F.酬載
    7. G.真空
    8. H.反作用
    9. I.節
    10. J.可重複使用的

  2. 二、選擇題（30 分）

    1. (    )1.What makes a rocket move forward?

      1. (A) It pushes against the air
      2. (B) Gas thrown backwards pushes it forwards
      3. (C) Magnets
      4. (D) The Earth's spin alone

    2. (    )2.Where does a rocket work best?

      1. (A) At sea level
      2. (B) In thick air
      3. (C) In a vacuum
      4. (D) Underwater

    3. (    )3.What is the hard part of reaching orbit?

      1. (A) Going up high
      2. (B) Going sideways fast enough
      3. (C) Staying warm
      4. (D) Finding the way

    4. (    )4.About what share of a rocket's launch weight is propellant?

      1. (A) Half
      2. (B) Seventy percent
      3. (C) Over ninety percent
      4. (D) Ten percent

    5. (    )5.Why do rockets launch eastwards?

      1. (A) The weather is better
      2. (B) The Earth spins eastwards and gives a head start
      3. (C) It is closer to the sea
      4. (D) To avoid other countries

    6. (    )6.Why does a rocket engine work without air?

      1. (A) It uses magnets
      2. (B) It carries its own oxygen
      3. (C) It runs on electricity
      4. (D) It does not burn anything

  3. 三、填空（每題填一個單字）（30 分）

    1. 1.Every action has an equal and ____ reaction.（提示：相反的）
    2. 2.Most of a rocket's weight is ____.（提示：燃料）
    3. 3.Each ____ is dropped once its tank is empty.（提示：節）
    4. 4.The ____ is the part you actually wanted to send up.（提示：酬載）
    5. 5.A rocket engine works even in a ____.（提示：真空）
    6. 6.____ rockets can be landed and flown again.（提示：可重複使用的）

  4. 四、簡答（用英文回答，一到兩句即可）（20 分）

    1. 1.Explain how a rocket moves using Newton's third law.用牛頓第三定律說明火箭如何前進。

    2. 2.Why are rockets built in stages?火箭為什麼要分節？

接棒學院 academy.codingwizard.com.tw · 太空 / 火箭
接棒學院

解答 · Answer KeyRockets 火箭

  1. 一、單字配對

    1. A2. H3. E4. B5. I6. F7. C8. J9. G10. D

  2. 二、選擇題

    1. B2. C3. B4. C5. B6. B

  3. 三、填空（每題填一個單字）

    1. opposite2. fuel3. stage4. payload5. vacuum6. Reusable

  4. 四、簡答（用英文回答，一到兩句即可）

    1. 1. The engine throws hot gas backwards very fast, and the equal and opposite reaction pushes the rocket forwards. It does not need air to push against.
    2. 2. Carrying an empty fuel tank wastes energy, so each stage is dropped as soon as it is empty, which makes the remaining rocket lighter and easier to accelerate.