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学起plusUnit 5 Pioneers of Flight,Unit 5 Pioneers of Flight作业答案

Unit 5 Pioneers of Flight,Unit 5 Pioneers of Flight

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问题 1: 1. 21. Leonardo da Vinci, perhaps the most famous artist of the Renaissance period, planned flying ______ with flapping wings controlled and steered by human pilots.

选项:

• A. planes

• B. spacecrafts

• C. devices

• D. rockets

答案: devices

问题 2: 2. 17. Though it had promise, in the end the ______ failed for three main reasons.

选项:

• A. project

• B. plane

• C. machine

• D. spaceship

答案: project

问题 3: 3. 35. We rejected this proposal as a ______ of principle.

选项:

• A. matter

• B. thing

• C. representation

• D. explanation

答案: matter

问题 4: 4. 11. On November 2, 1947, a crowd of ______ at San Pedro harbor in Los Angeles witnessed aviation history.

选项:

• A. scientists

• B. onlookers

• C. spacemen

• D. politicians

答案: onlookers

问题 5: 5. 28. What they shared was a fascination with flying, a spirit of ______, and the courage to try and make their dreams of flight come true.

选项:

• A. creation

• B. innovation

• C. consideration

• D. manufacture

答案: innovation

问题 6: 6. 19. In 1992, the plane was dismantled and ______ to the state of Oregon, where it remains today.

选项:

• A. flew

• B. transported

• C. taken

• D. moved

答案: transported

问题 7: 7. 16. The Spruce Goose was the biggest airplane ever built and still holds the record for the greatest ______, and it was made entirely of wood.

选项:

• A. shape

• B. wing

• C. volume

• D. wingspan

答案: 请关注公众号【博学搜题】查看答案

问题 8: 8. 34. This mistake ______ in his over-confidence as we could see from his be 学起plus马原答案2025 havior.

选项:

• A. brought

• B. originated

• C. came

• D. went

答案: 请关注公众号【博学搜题】查看答案

问题 9: 9. 32. ______ of materials and troops in times of war is no easy job.

选项:

• A. Moving

• B. Leaving

• C. Transportation

• D. Reserving

答案: 请关注公众号【博学搜题】查看答案

问题 10: 10. 9. With shattering exploration, Wan Hu and his ______ spaceship had disappeared completely.

选项:

• A. invented

• B. proud

• C. primitive

• D. crazy

答案: 请关注公众号【博学搜题】查看答案

问题 11: 11. 31. Howard Hughes was ahead of his ______ in aviation design.

选项:

• A. colleague

• B. time

• C. life

• D. living

答案: 请关注公众号【博学搜题】查看答案

问题 12: 12. 6. The story go 免费试题下载网站推荐 es that Wan Hu built the first spaceship: a chair with 47 powerful gunpowder rockets and two ______ attached to it.

选项:

• A. kites

• B. rockets

• C. airplanes

• D. flying machines

答案: 请关注公众号【博学搜题】查看答案

问题 13: 13. 22. Centuries before Hughes was designing the Spruce Goose, another ______ in transportation design was sketching plans for different kinds of flying machines.

选项:

• A. pioneer

• B. pilot

• C. leader

• D. spaceman

答案: 请关注公众号【博学搜题】查看答案

问题 14: 14. 4. At that time, the Chinese invention of ______ was widely used in rockets for military purposes as well as in fireworks.

选项:

• A. satellites

• B. rockets

• C. fireworks

• D. gunpowder

答案: 请关注公众号【博学搜题】查看答案

问题 15: 15. 30. Our train is already behind ______. I wonder whether we will 智慧树答案 be in time for Tom’s wedding.

选项:

• A. schedule

• B. team

• C. date

• D. transportation

答案: 请关注公众号【博学搜题】查看答案

问题 16: 16. 22. His research focused on the complex ______ of birds in flight, and he based his flying machines on this analogy.

选项:

• A. structure

• B. design

• C. construction

• D. anatomy

答案: 请关注公众号【博学搜题】查看答案

问题 17: 17. 14. The concept for ( ) of the Spruce Goose came from the need for more effective ways of transporting troops and materials in World War II.

选项:

• A. creation

• B. transportation

• C. promise

• D. construction

答案: 请关注公众号【博学搜题】查看答案

问题 18: 18. 23. It took almost 500 years for da Vinci’s ______ to become real.

选项:

• A. photoes

• B. attached

• C. sketches

• D. expressed

答案: 请关注公众号【博学搜题】查看答案

问题 19: 19. 7. On the day of the launch, each rocket was lit by a different servant carrying a ______.

选项:

• A. firework

• B. torch

• C. kite

• D. flight

答案: 请关注公众号【博学搜题】查看答案

问题 20: 20. 27. These three ______ individuals, Wan Hu, Howard Hughes, and Leonardo da Vinci, came from places and cultures that are about as different as we can imagine.

选项:

• A. passionate

• B. bravery

• C. enigmatic

• D. boldly

答案: 请关注公众号【博学搜题】查看答案