【英语时差8,16】不锈钢为什么不生锈？

Our modern world, with its skyscrapers¹, suspension bridges, and automobiles², relies heavily on steel. If you own an aging car however, you know firsthand that steel has one annoying problem: it rusts⁴. All steel, that is, except stainless⁵ steel. What keeps this remarkable⁶ material, used commonly in kitchen sinks and cookware, from rusting⁷? Steel’s main ingredient is iron. When steel rusts, its iron combines with oxygen and reverts⁸ to iron ore, the raw state from which it came. As this happens, the steel turns brown and begins to crumble⁹. There are many ways to protect steel from corrosion¹⁰. Steel is sometimes painted or greased, or coated with a metal that is less likely to rust³. Sometimes a metal that is MORE likely to rust is attached. Known as a sacrificial metal, this works by drawing the corrosion process away from the steel. For example, bars of zinc¹¹ are attached to the hulls¹³ of some ships. The zinc rusts heavily, but the steel hull¹² stays relatively¹⁴ safe.

1 skyscrapers   

n.摩天大楼

参考例句：

• A lot of skyscrapers in Manhattan are rising up to the skies. 曼哈顿有许多摩天大楼耸入云霄。
• On all sides, skyscrapers rose like jagged teeth. 四周耸起的摩天大楼参差不齐。

2 automobiles   

n.汽车( automobile的名词复数 )

参考例句：

• When automobiles become popular,the use of the horse and buggy passed away. 汽车普及后，就不再使用马和马车了。 来自《简明英汉词典》
• Automobiles speed in an endless stream along the boulevard. 宽阔的林荫道上，汽车川流不息。 来自《现代汉英综合大词典》

3 rust   

n.锈；v.生锈；(脑子)衰退

参考例句：

• She scraped the rust off the kitchen knife.她擦掉了菜刀上的锈。
• The rain will rust the iron roof.雨水会使铁皮屋顶生锈。

4 rusts   

n.铁锈( rust的名词复数 )；（植物的）锈病，锈菌v.（使）生锈( rust的第三人称单数 )

参考例句：

• Copper nails are better than iron nails because the iron rusts. 铜钉比铁钉好，因为铁会生锈。 来自辞典例句
• The axenic culture of rusts has been achieved on various defined media. 在各种规定的培养基上可得到锈菌的单体纯净培养物。 来自辞典例句

5 stainless   

adj.无瑕疵的，不锈的

参考例句：

• I have a set of stainless knives and forks.我有一套不锈钢刀叉。
• Before the recent political scandal,her reputation had been stainless.在最近的政治丑闻之前，她的名声是无懈可击的。

6 remarkable   

adj.显著的，异常的，非凡的，值得注意的

参考例句：

• She has made remarkable headway in her writing skills.她在写作技巧方面有了长足进步。
• These cars are remarkable for the quietness of their engines.这些汽车因发动机没有噪音而不同凡响。

7 rusting   

n.生锈v.（使）生锈( rust的现在分词 )

参考例句：

• There was an old rusting bolt on the door. 门上有一个生锈的旧门闩。 来自辞典例句
• Zinc can be used to cover other metals to stop them rusting. 锌可用来涂在其他金属表面以防锈。 来自辞典例句

8 reverts   

恢复( revert的第三人称单数 )； 重提； 回到…上； 归还

参考例句：

• The mind reverts to the earliest days of colonial history. 我们回想到早期的殖民地历史。
• Macau reverts to Chinese sovereignty at midnight on December19. 澳门主权于十二月十九日零时回归中国。

9 crumble   

vi.碎裂，崩溃；vt.弄碎，摧毁

参考例句：

• Opposition more or less crumbled away.反对势力差不多都瓦解了。
• Even if the seas go dry and rocks crumble,my will will remain firm.纵然海枯石烂，意志永不动摇。

10 corrosion   

n.腐蚀，侵蚀；渐渐毁坏，渐衰

参考例句：

• Corrosion is not covered by the warranty.腐蚀不在保修范围之内。
• Zinc is used to protect other metals from corrosion.锌被用来保护其他金属不受腐蚀。

11 zinc   

n.锌；vt.在...上镀锌

参考例句：

• Brass is formed by the fusion of copper and zinc.黄铜是通过铜和锌的熔合而成的。
• Zinc is used to protect other metals from corrosion.锌被用来保护其他金属不受腐蚀。

12 hull   

n.船身；(果、实等的)外壳；vt.去(谷物等)壳

参考例句：

• The outer surface of ship's hull is very hard.船体的外表面非常坚硬。
• The boat's hull has been staved in by the tremendous seas.小船壳让巨浪打穿了。

13 hulls   

船体( hull的名词复数 )； 船身； 外壳； 豆荚

参考例句：

• Hulls may be removed by aspiration on screens. 脱下的种皮，可由筛子上的气吸装置吸除。
• When their object is attained they fall off like empty hulls from the kernel. 当他们的目的达到以后，他们便凋谢零落，就象脱却果实的空壳一样。

14 relatively   

adv.比较...地，相对地

参考例句：

• The rabbit is a relatively recent introduction in Australia.兔子是相对较新引入澳大利亚的物种。
• The operation was relatively painless.手术相对来说不痛。