
接棒學院 CodingWizard Academy
Rockets · 火箭單元測驗卷
太空 Space · CEFR B1 · 滿分 100 分
班級 ______________座號 __________姓名 ______________日期 ______ / ______得分 __________
一、單字配對(20 分)
把右邊的代號填進左邊的括號裡。
- 1.thrust( )
- 2.reaction( )
- 3.opposite( )
- 4.fuel( )
- 5.stage( )
- 6.payload( )
- 7.launch( )
- 8.reusable( )
- 9.vacuum( )
- 10.oxygen( )
- A.推力
- B.燃料
- C.發射
- D.氧氣
- E.相反的
- F.酬載
- G.真空
- H.反作用
- I.節
- J.可重複使用的
二、選擇題(30 分)
( )1.What makes a rocket move forward?
- (A) It pushes against the air
- (B) Gas thrown backwards pushes it forwards
- (C) Magnets
- (D) The Earth's spin alone
( )2.Where does a rocket work best?
- (A) At sea level
- (B) In thick air
- (C) In a vacuum
- (D) Underwater
( )3.What is the hard part of reaching orbit?
- (A) Going up high
- (B) Going sideways fast enough
- (C) Staying warm
- (D) Finding the way
( )4.About what share of a rocket's launch weight is propellant?
- (A) Half
- (B) Seventy percent
- (C) Over ninety percent
- (D) Ten percent
( )5.Why do rockets launch eastwards?
- (A) The weather is better
- (B) The Earth spins eastwards and gives a head start
- (C) It is closer to the sea
- (D) To avoid other countries
( )6.Why does a rocket engine work without air?
- (A) It uses magnets
- (B) It carries its own oxygen
- (C) It runs on electricity
- (D) It does not burn anything
三、填空(每題填一個單字)(30 分)
- 1.Every action has an equal and ____ reaction.(提示:相反的)
- 2.Most of a rocket's weight is ____.(提示:燃料)
- 3.Each ____ is dropped once its tank is empty.(提示:節)
- 4.The ____ is the part you actually wanted to send up.(提示:酬載)
- 5.A rocket engine works even in a ____.(提示:真空)
- 6.____ rockets can be landed and flown again.(提示:可重複使用的)
四、簡答(用英文回答,一到兩句即可)(20 分)
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.Why are rockets built in stages?火箭為什麼要分節?