《英语流行话题阅读:语境识词4500》64 The Story of Corn

　　Unit 64
The Story of Corn
Before 1492, when Columbus "discovered" America, no one living in Europe knew corn existed. Up to this time, corn grew only in the Americas. Scientists believed corn was originally cultivated by Indians in the highlands of Mexico thousands of years ago. American Indians were growing corn in many parts of North America log before the first arrival of European explorers and traders. Christopher Columbus and the explorers that followed him took corn back to Europe and introduced it to the world. Native American Indians taught European colonists¹ to grow many varieties of the corn including yellow, re, blue, pink, and black kernels². As time went on, the new settles to America began to depend on corn as one of the most important farm crops. American farmers have always wanted to grow strong healthy corn plants that yield as much as possible. In the later 1800s scientists worked on the development of hybrid³ corn. This research led to better varieties of corn and higher yields.
Did you know corn is used to help produce antibiotics⁴, baby foods, condensed milk, some fruit juices and even peanut butter? From the corn syrup⁵ in your soda⁶ pop to thousands of products -- animal feed, human food, drugs, cosmetics⁷, corn sweetener and cleansers, just to name a few. Beyond its food and consumer product uses, corn is replacing petroleum⁸ in many industrial applications, from plastic containers to clean-burning ethanol. Because corn products are a biodegradable and renewable natural resource, they are better for the environment than their petroleum counterparts.
Corn and products made from corn improve the lives of Americans in thousands of little way. If corn and its products weren't available, many common products would be less useful, more expensive, even unavailable. Here are some examples of the little annoyances⁹ and bigger problems Americans would face without corn: No freezing pizza. Freezing pizza is a problem, because the moisture in the sauce can migrate into the crust, making it so soggy that it's unappealing to eat. Modified corn starch¹⁰ is used to provide a barrier that prevents water migration¹¹ and keeps the crust crisp. On a low-fat diet? Say thank you for corn. Many low-fat foods depend on corn-derived food starches¹² to provide qualities that used to come from fats. Examples include everything from low-fat salad dressing¹³ to baked goods and meat products. Frustrating¹⁴ wallpapering. If you've installed wallpaper, you know how important it is to have time to adjust each strip accurately¹⁵. Repositioning is possible because the wallpaper paste is made with corn starch modified to slow down its adhesive¹⁶ action. Brown lettuce¹⁷ leaves. Many fruits and vegetables start to turn an unattractive brown once they're cut and exposed to air. Citric acid, recognized as a safe food ingredient, can prevent browning and much of the US supply of citric acid is made from corn sweeteners. No coloring for kids. Whether playing with chalk on the sidewalk or crayons in school, American kids rely on corn. Corn starch is used to help such products hold together better when in use.

1 colonists   

n.殖民地开拓者，移民，殖民地居民( colonist的名词复数 )

参考例句：

• Colonists from Europe populated many parts of the Americas. 欧洲的殖民者移居到了美洲的许多地方。 来自《简明英汉词典》
• Some of the early colonists were cruel to the native population. 有些早期移居殖民地的人对当地居民很残忍。 来自《简明英汉词典》

2 kernels   

谷粒( kernel的名词复数 )； 仁； 核； 要点

参考例句：

• These stones contain kernels. 这些核中有仁。
• Resolving kernels and standard errors can also be computed for each block. 还可以计算每个块体的分辨核和标准误差。

3 hybrid   

n.(动，植）杂种，混合物

参考例句：

• That is a hybrid perpetual rose.那是一株杂交的四季开花的蔷薇。
• The hybrid was tall,handsome,and intelligent.那混血儿高大、英俊、又聪明。

4 antibiotics   

n.（用作复数）抗生素；（用作单数）抗生物质的研究；抗生素，抗菌素( antibiotic的名词复数 )

参考例句：

• the discovery of antibiotics in the 20th century 20世纪抗生素的发现
• The doctor gave me a prescription for antibiotics. 医生给我开了抗生素。

5 syrup   

n.糖浆，糖水

参考例句：

• I skimmed the foam from the boiling syrup.我撇去了煮沸糖浆上的泡沫。
• Tinned fruit usually has a lot of syrup with it.罐头水果通常都有许多糖浆。

6 soda   

n.苏打水；汽水

参考例句：

• She doesn't enjoy drinking chocolate soda.她不喜欢喝巧克力汽水。
• I will freshen your drink with more soda and ice cubes.我给你的饮料重加一些苏打水和冰块。

7 cosmetics   

n.化妆品

参考例句：

• We sell a wide range of cosmetics at a very reasonable price. 我们以公道的价格出售各种化妆品。
• Cosmetics do not always cover up the deficiencies of nature. 化妆品未能掩饰天生的缺陷。

8 petroleum   

n.原油，石油

参考例句：

• The Government of Iran advanced the price of petroleum last week.上星期伊朗政府提高了石油价格。
• The purpose of oil refinery is to refine crude petroleum.炼油厂的主要工作是提炼原油。

9 annoyances   

n.恼怒( annoyance的名词复数 )；烦恼；打扰；使人烦恼的事

参考例句：

• At dinner that evening two annoyances kept General Zaroff from perfect enjoyment one. 当天晚上吃饭时，有两件不称心的事令沙洛夫吃得不很香。 来自辞典例句
• Actually, I have a lot of these little annoyances-don't we all? 事实上我有很多类似的小烦恼，我们不都有这种小烦恼吗？ 来自互联网

10 starch   

n.淀粉；vt.给...上浆

参考例句：

• Corn starch is used as a thickener in stews.玉米淀粉在炖煮菜肴中被用作增稠剂。
• I think there's too much starch in their diet.我看是他们的饮食里淀粉太多了。

11 migration   

n.迁移，移居，（鸟类等的）迁徙

参考例句：

• Swallows begin their migration south in autumn.燕子在秋季开始向南方迁移。
• He described the vernal migration of birds in detail.他详细地描述了鸟的春季移居。

12 starches   

n.淀粉( starch的名词复数 )；含淀粉的食物；浆粉v.把（衣服、床单等）浆一浆( starch的第三人称单数 )

参考例句：

• You should avoid sugars and starches. 你应避免吃糖和含淀粉的食物。 来自《简明英汉词典》
• Cotton and rayon yarns are most often sized with water-insoluble starches. 棉和人造丝纱多用不溶于水的淀粉上浆。 来自互联网

13 dressing   

n.(食物)调料；包扎伤口的用品，敷料

参考例句：

• Don't spend such a lot of time in dressing yourself.别花那么多时间来打扮自己。
• The children enjoy dressing up in mother's old clothes.孩子们喜欢穿上妈妈旧时的衣服玩。

14 frustrating   

adj.产生挫折的，使人沮丧的，令人泄气的v.使不成功( frustrate的现在分词 )；挫败；使受挫折；令人沮丧

参考例句：

• It's frustrating to have to wait so long. 要等这么长时间，真令人懊恼。
• It was a demeaning and ultimately frustrating experience. 那是一次有失颜面并且令人沮丧至极的经历。 来自《简明英汉词典》

15 accurately   

adv.准确地，精确地

参考例句：

• It is hard to hit the ball accurately.准确地击中球很难。
• Now scientists can forecast the weather accurately.现在科学家们能准确地预报天气。

16 adhesive   

n.粘合剂；adj.可粘着的，粘性的

参考例句：

• You'll need a strong adhesive to mend that chair. 你需要一种粘性很强的东西来修理那把椅子。
• Would you give me an adhesive stamp?请给我一枚带胶邮票好吗？

17 lettuce   

n.莴苣；生菜

参考例句：

• Get some lettuce and tomatoes so I can make a salad.买些莴苣和西红柿，我好做色拉。
• The lettuce is crisp and cold.莴苣松脆爽口。