全新版大学进阶英语综合教程第二册答案U5-Key-to-rcises9页
9页1、Unit 5 Pioneers of FlightKey to ExercisesOpenerA Mighty Airplane Built by Howard Hughes in 1947LengthIt was 220 feet long.HeightIt was higher than a five-story building.WeightIt weighed about 60 tons.TripIt had to make the trip from Culver city in California to the Pacific, which is 30 miles away.Reading & InteractingI. Understanding the Text1. Text OrganizationStoryThe heroWhen it happenedHow it relates to modern aviation1Wan HuA.D. 1500Wan Hus crazy dream contains the principles of rocket-powe
2、red spaceflight.2Howard HughesOn November 2, 1947Many of the design features of the Spruce Goose have been incorporated into modern cargo planes.3Leonardo da VinciAbout 500 years agoThe flying devices with flapping wings controlled and steered by human pilots he designed still inspire people to pursue their dreams of flying freely in the sky.2. Comprehension Check2.1 Focusing on the main ideas The article consists of three stories about pioneers of flight. The first story is about a Chinese name
3、d Wan Hu, who made an unsuccessful attempt at spaceflight in A.D.1500. He built a spaceship powered by 47 rockets using gunpowder. His idea was crazy, but his dream of flight came true 500 years later when China successfully launched its first manned Shenzhou V spaceship. The second one is about the Spruce Goose, a flying boat designed to meet the need of transporting troops and materials during World War II. It was made entirely of wood and still holds the record for the greatest wingspan. Alth
4、ough it was never put to use, many of its design features have been incorporated into todays cargo planes. The last is about Leonardo da Vinci, the most famous artist of the Renaissance. Apart from his great artistic work, he also drew sketches of flying devices with flapping wings controlled and steered by human pilots. Five hundred years later, a professional parachutist made a successful jump using a wood and canvas parachute based on one of da Vincis designs/sketches.2.2 Digging into detail
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