The story of mans dream of flight, of his desire to reach the stars, is as old as mankind itself. According to Greek legend, Daedalus was the first man to fly. He and his son had been kept on an island. In order to escape, Daedalus shaped wings of wax into which he stuck bird feathers. During their flight, his son flew too high and the sun melted the wax. He was drowned in the sea. The father was supposed to have continued his flight and reached Sicily, several hundred miles away. The first man to approach flying on a scientific basis was an Englishman who lived during the thirteenth century. He looked at the air about us as a sea, and he believed that a balloon could float on the air just as a boat did on water. Almost four hundred years later, an Italian priest applied his principle of air flight. He designed a boat, which would be held in the air by four hollow spheres . ach of the four balls was to be 20 feet in diameter and made of very thin copper. But his boat was never built since it was not possible to make spheres of such thin metal and such size in those days. 41 How did Daedalus manage to escape to Sicily, according to the passage? B A god came to rescue him and took him away. D He made wings of wax and flew away from the island. A he flew too far. C he fell to the ground, 43 The first scientific air flight was designed by__________. B an Englishman. D an Italian. A he could not raise enough money. C he could not find enough copper. 45 According to the last paragraph, man could not fly with flapping-wing flying machines because__________. B he knew nothing about the movement of the air. D they were made of light feathers.
冀教版英语二下(一起)《Unit 4 Lesson28 Fun in the park》PPT课件
冀教版(一起)二下《lesson 17 It’s Saturday》ppt课件
冀教版(一起)二下《lesson 4 Washroom, gym》ppt课件
冀教版(一起)二下《lesson 28 Fun in the park》ppt课件
冀教版(一起)二下《Lesson 10 I clean my room》ppt课件
冀教版英语二下(一起)《Unit 4 Lesson31 words where I live》PPT课件
冀教版英语一下(一起)《Unit 2 Lesson16 Again please》ppt课件
冀教版(一起)二下《lesson 18 What’s for lunch》ppt课件
冀教版英语二下(一起)《Unit 2 Lesson15 Help my family》PPT课件
冀教版英语二下(一起)《Unit 3 Lesson21 Let’s visit the neighbours》PPT课件
冀教版(一起)二下《Lesson 12 I cook》ppt课件
冀教版英语一下(一起)《Unit 1 Lesson2 My classroom》ppt课件
冀教版(一起)二下《lesson 22 Playing at home》ppt课件
冀教版英语二下(一起)《Unit 4 Lesson25 Let’s go outside》PPT课件
冀教版(一起)二下《lesson 31 Words where I live》ppt课件
冀教版英语一下(一起)《Unit 3 Lesson21 Triangle rectangle square》ppt课件
冀教版(一起)二下《Lesson 9 My big family》ppt课件1
冀教版(一起)二下《lesson 25 Let’s go outside!》ppt课件
冀教版(一起)二下《lesson 6 It’s time for lunch!》ppt课件
冀教版英语二下(一起)《Unit 3 Lesson19 In the garden》PPT课件
冀教版英语二下(一起)《Unit 3 Lesson20 let’s learn the alphabet》PPT课件
冀教版英语二下(一起)《Unit 4 Lesson27 Look》PPT课件
冀教版(一起)二下《Lesson 14 Let’s learn the alphabet.》ppt课件
冀教版(一起)二下《lesson 26 Cars, buses and bikes》ppt课件
冀教版英语二下(一起)《Unit 2 Lesson14 Let’s learn the alphabet》PPT课件
冀教版(一起)二下《lesson 21 Let’s visit the neighbours.》ppt课件
冀教版英语二下(一起)《Unit 3 Lesson18 What’s for lunch 课堂教学》PPT课件包
冀教版(一起)二下《Lesson 9 My big family》ppt课件
冀教版英语二下(一起)《Unit 2 Lesson13 I count》PPT课件
冀教版英语一下(一起)《Unit 1 Lesson8 Again please》ppt课件
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