练习材料：L17-1： The longest suspension bridge in the world 时长：56s
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.'
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.
The Verrazano Bridge, which was designed by Othmar Ammann, joins Brooklyn to Staten Island.
It has a span of 4,260 feet. The bridge is so long that the shape of the earth had to be taken into account by its designer.
任务配置：L0+L4
知识笔记：
suspension bridge 1 .悬索桥；吊桥a bridge that hangs from steel cables that are supported by towers at each end
eg： After nearly two hundred years of development, Suspension bridge has become one of the best choice when super large-span bridge is needed. 悬索桥经历了近两百年的发展，已成为超大跨度桥梁的最优选择桥型之一
in the midst of 是指被包围的状态，四个方向 说小镇在群山之间
in the middle of 是指,两者之间的那种状态，两个方向 说我站在队伍中间,就是用in the middle of
immortal
adj. 1.长生的；永世的；不朽的that lives or lasts for ever 2.流芳百世的；名垂千古的famous and likely to be remembered for ever
n. 1.不朽的人物；名垂千古的人物a person who is so famous that they will be remembered for ever 2.神；永生不灭者a god or other being who is believed to live for ever
eg: You know, you're immortal and made of stone.
要知道，你们虽然不死但仍然是用石头做的
name after 以...命名
span
n.1.持续时间the length of time that sth lasts or is able to continue 2.~ (of sth) 范围；包括的种类a range or variety of sth 3.（桥或拱的）跨径，跨度，跨距the part of a bridge or an arch between one vertical support and another 4.宽度；翼展the width of sth from one side to the other
v. 1.~ sth 持续；贯穿to last all through a period of time or to cover the whole of it 2.~ sth 包括（广大地区）；涵盖（多项内容）to include a large area or a lot of things 3.~ sth 横跨；跨越to stretch right across sth, from one side to the other
eg: It has a span of 4,260 feet. 桥长4260英尺。
练习感悟：
一开始完全跟不上原文的速度，放慢练习了几遍，再去跟，熟悉了数字和生词之后，慢慢跟上了速度，还可以啦~
