The Longest Suspension Bridge in the World

1. The Longest Suspension Bridge in the World Lesson 17

2. Lead-in New Words Text Analysis Language Points Homework Contents

3. Learning Objectives 1.To master the key words , the important phrases and language points in the text. 2.Be ableto understand and read the text. 3.Be ableto speak English and express your own opinions.

4. 1.Have youever seen a suspension bridge ? 2.Have you heard of Verrazano Bridge ? Lead-in

5. Suspension Bridge

6. Verrazano Bridge

7. New Words suspension n. ①the act of hanging sth. from sth. else 悬吊 suspension bridge ②the removal of someone from a team, job, school etc. for a period of time暂停 The sudden rain led to the suspension of the sports meeting. 吊桥

8. New Words suspend v. ①to hang 悬吊 suspend… from…悬挂 Colored lights are suspended from the ceiling. ②to officially stop sth. for a short time 暂停 The two countries had to suspend trade for two years due to the war.

9. New Words agreeable adj. pleasant or acceptable 宜人的 agreeable weather agreeable voice 宜人的天气 悦耳的声音

10. New Words locate v. to find the exact position of sth. 位于，坐落于 be located in/at坐落在… Tai’an _________at the foot of Mountain Tai. locate… in/at…定位于… Wangfei decided to _________ a hope primary school in the poor town. location n. 位置 is located locate

11. New Words immortal adj. living or continuing forever 永生的，流芳百世的 反义词：mortal 终有一死的

12. New Words span n. the length of time over which someone’s attention, life etc. continues跨度 Smoking and drinking will reduce your life span. 寿命

13. New Words cable n. 缆索；电缆 cable TV 有线电视 cable channel 有线频道

14. New Words concrete n. 混凝土 steel and concrete adj. 具体的，有形的 The suspect was released for the lack of concrete evidence. 钢筋混凝土

15. New Words length n.根，段; 长度 a length of steel tube 一根钢管 横向拓展：lengthen v. (使)变长 lengthy adj. 冗长的

16. New Words estimate v. to try to judge the value, size, speed, cost etc. of sth., partly by calculating and partly by guessing估计 横向拓展：overestimate v. 高估 underestimate v. 低估 estimation n. 估计

17. New Words capacity n. ①容量 storage capacity 存储量 vital capacity 肺活量 the capacity of… …的容量 ②能力 the capacity to do/ for doing sth. 做某事的能力 I’m quite confident of my capacity for learning.

18. New Words extend vi. 延伸，延续 We cannot extend the length of our lives, but we can broaden the width of our lives. 我们无法延长生命的长度 却可以拓宽生命的宽度

19. New Words immensity n. the great size and seriousness of sth. 巨大 immense 巨大的，无限的

20. New Words elegant adj. 优雅别致的 elegance n. 高雅

21. Listening Listen to the tape then answer the question below. How is the bridge supported ?

22. Verrazano, an Italian about whom little is known, sailed into New York Harbour in 1524 and named it Angouleme. He described it as 'a very agreeable situation located within two small hills in the midst of which flowed a great river.'

23. Though Verrazano is by no means considered to be a great explorer, his name will probably remain immortal, for on November 21st, 1964, the longest suspension bridge in the world was named after him.

24. The Verrazano Bridge, which was designed by Othmar Ammann, joins Brooklyn to Staten Island.It has a span of 4260 feet. The bridge is so long that the shape of the earth had to be taken into account by its designer. Two great towers support four huge cables.

25. The towers are built on immense underwater platforms made of steel and concrete.The platforms extend to a depth of over 100 feet under the sea. These alone took sixteen months to build. Above the surface of the water, the towers rise to a height of nearly 700 feet.They support the cables from which the bridge has been suspended. Each of the four cables contains 26,108 lengths of wire.

26. It has been estimated that if the bridge were packed with cars, it would still only be carrying a third of its total capacity.

27. However, size and strength are not the only important things about this bridge. Despite its immensity, it is both simple and elegant, fulfilling its designer's dream to create 'an enormous object drawn as faintly as possible'.

28. Listening Listen to the tape then answer the question below. How is the bridge supported ? Two great towers support four huge cables from which the bridge is suspended.

29. Text Analysis Paragraph main idea: Para1: The greatest bridge in the world was named after Verrazano, an Italian. 1) When Verrazano sailed into New York Harbour in 1524, he named it Angouleme. 2) He described it as 'a very agreeable situation located within two small hills in the midst of which flowed a great river.'

30. Text Analysis Para2: The Verrazano Bridge is both simple and elegant. 1) The Verrazano Bridge, joins Brooklyn to Staten Island. 2) It has a span of 4260 feet. 3) Two great towers support four huge cables. 4) Each of the four cables contains 26,108 lengths of wire.

31. Text Analysis

32. Text Analysis 4260 feet Great Tower Great Tower Cable (26,108 lengths of wire) 700 feet brooklyn staten island 100 feet Platform Platform

33. Language Points sailed into…句子的主干 …an Italian about whom little is known… = …an Italian whom little is known about… known about：了解。定语从句中动词后面的介词可以提到关系代词的前面。 Verrazano, an Italian about whom little is known, sailed into New York Harbour in 1524...

34. Language Points describe sth. as: 描述为 eg : I should describe the attempt as a failure. 我认为这次尝试失败了。 He described it as 'a very agreeable situation...

35. Language Points in the midst of = in the middle of 某些地点或时间状语位于句首时，句子全部倒装. 这所房子下面有一条小溪。 Below the house ran a little stream. 战争结束后，出现了国民经济的恢复问题。 After the war came the problem of the rehabilitation of national economy. In the midst of two small hills flowed a great river.

36. Language Points though, although, even though 引导让步状语从句,注意:这些连词都不能与 but同时使用。 by no means 无论如何，绝不 Eg: It is by no means pleasant to take a crowded bus.在拥挤的公交车上绝对不舒服。 Though Verrazano is by no means considered to be a great explorer, his name willprobably remainimmortal

37. Language Points remain immortal：流芳千古。 remain为系动词，后面要跟形容词。 Though Verrazano is by no means considered to be a great explorer, his name willprobably remainimmortal

38. Language Points a span of: 跨度、桥长 It has a span of 4260 feet.

39. Language Points take ... into account: 考虑到 Eg: We have to take the date into account when we have the meeting. 我们召开会议要考虑日期。 The bridge is so long that the shape of the earth had to be taken into account by its designer.

40. Language Points 过去分词短语作后置定语： This is a mobile phone made in China. The towers are built on immense underwater platforms made of steel and concrete.

41. Language Points it has been estimated that : 据估计 It is said that…据说；It is reported that…据报道 if 引导虚拟语气，与现在事实相反：if 条件句动 词用过去式，主句为：would +动词原形。 be packed with : 挤满，装满 It has been estimated that if the bridge were packed with cars, it would still only be carrying a third of its total capacity.

42. Language Points despite: in spite of fulfilling :分词做状语表结果 eg: At last he passed his examination,fulfilling his dream to go abroad. 最终他通过了考试，怀揣着梦想出国了。 Despite its immensity, it is both simple and elegant, fulfilling its designer's dream...

43. Check and Reflection d 1.Verrazano‘s name will probably remain immortal because _____ .  a. it was after he discovered New York Harbour that a bridge was built  b. he named the river that the new bridge crosses  c. he was an explored of considerable means  d. it has been given to the world's longest suspension bridge 

44. Check and Reflection a 2. The Verrazano Bridge was built with so wide a span because _____ . a. it had to cover a wide stretch of water b. of the unusual shape of the earth around Brooklyn and Staten Island c. the water that lies between Brooklyn and Staten Island is very deep d. the number of wires in each cable is so great

45. Check and Reflection a 3.In designing the Verrazano Bridge, Othmar Ammann ____ .  a. had to account for the curvature of the earth‘s surface  b. spent over a year building the platforms that form the  bridge‘s base  c. had to consider the number of vehicles that might cross  the bridge as much as possible.  d. wished to reduce the size of the bridge as much as  possible ． 

46. Homework 1. Review the language points in the text after class. 2. Write a summary to describe the Verrazano   Bridge in not more than 80 words. 3. Do the exercises on P81.

47. Thank You !