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Moon7296 Posted 12 years ago
Vocabulary
iron oxide / the protective oxide
In 1913, Harry Brearley discovered that chromium had the ability to create an oxide, and that steel made from iron and chromium resisted many corrosive chemicals. The metal was later named stainless steel. It is coated with a thin, transparent film of iron oxide and chromium. This prevents soap, food, water, and air from getting to the metal below and eating it away. Since its coating is so smooth, stainless steel is very sanitary. Bacteria, fungi, and dirt have nowhere to hide and are easily washed away. For this reason, commercial kitchen surfaces and cooking equipment are often made of stainless steel. Besides, the metal can “heal” itself. When scratched or nicked, the protective oxide immediately recoats the damaged area. Because of its great ability to resist rusting, it is an ideal material for knives, pots and frying pans.
Q) In the first underlined part, "oxide" doesn't have the definite article the while in the second, it has the definite article the.
What is intended by saying "the" protective oxide?
Q) In the first underlined part, "oxide" doesn't have the definite article the while in the second, it has the definite article the.
What is intended by saying "the" protective oxide?
Top answer
moon7296 In the first underlined part, "oxide" doesn't have the definite article the That's a very usual pattern in the "an X of Y" construction where Y is a non-count noun and X is composed of Y. a thin, transparent film of iron oxide and chromium a layer of dust a coat of paint a block of wood These are related to quantity expressions like the following: a bottle of wine a glass of water a spoonful of honey moon7296 in the second, it has the definite article the. What is intended by saying "the" protective oxide?
- moon7296 In the first underlined part, "oxide" doesn't have the definite article the That's a very usual pattern in the "an X of Y" construction where Y is a non-count noun and X is composed of Y.
- a thin, transparent film of iron oxide and chromium a layer of dust a coat of paint a block of wood These are related to quantity expressions like the following: a bottle of wine a glass of water a spoonful of honey moon7296 in the second, it has the definite article the.
- What is intended by saying "the" protective oxide?
- "the (protective oxide)" is equivalent to "(the) previously mentioned (protective oxide)".
- CJ
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1 Answers
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moon7296In the first underlined part, "oxide" doesn't have the definite article theThat's a very usual pattern in the "an X of Y" construction where Y is a non-count noun and X is composed of Y.
a thin, transparent film of iron oxide and chromium
a layer of dust
a coat of paint
a block of
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