2. 外语
  3. The ancient Aztecs venerated the cacao tree and used its beans as a form of currency. They【C1】______the tree as a source of stre

The ancient Aztecs venerated the cacao tree and used its beans as a form of currency. They【C1】______the tree as a source of stre

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问题     The ancient Aztecs venerated the cacao tree and used its beans as a form of currency. They【C1】______the tree as a source of strength and wealth and【C2】______their god Quetzalcoatl its guardian. The Aztecs discovered that by crushing the beans into a paste and adding spices, they could make a【C3】______and nourishing drink. This drink would have been very bitter,【C4】______our chocolate drinks today. 16th century European explorers brought the drink back from their【C5】______, added sweeter flavourings, and soon it was【C6】______as an expensive luxury.
    In the 1800s, solid chocolate became popular,【C7】______the invention of moulding processes.【C8】______grinders crushed cocoa beans to a【C9】______powder that could be heated and poured into moulds,【C10】______shapes【C11】______it cooled. Dutchman Coenrad Van Houten perfected the【C12】______of cocoa butter from cocoa beans in 1825. The beans are crushed to a paste, which is【C13】______very high pressure, forming chocolate liquor and cocoa butter. The extracted butter is smoothed and【C14】______to remove any odors. In the 1880s, Rudolphe Lindt of Switzerland started adding【C15】______cocoa butter during chocolate manufacture, to make it【C16】______and glossier. Cocoa butter melts at around 97°F, which is human body temperature. That’s why chocolate melts in the mouth.
    In 1875 , Swiss Daniel Peter perfected the【C17】______of milk chocolate, which is sweeter and smoother than dark chocolate. Nestle’s recently-invented【C18】______milk was easy to mix with cocoa paste, unlike liquid milk. Cadbury’s "Dairy Milk", first【C19】______in 1905, is the UK’s most【C20】______chocolate bar. Milk chocolate is now the world’s best-selling variety.
【C12】
选项 A、extraction
B、attraction
C、exploration
D、expectation
答案A
解析 词汇题。词义辨析题。extraction意为“榨取，提取”，如选此项含义为“改善了可可脂的榨取(the extraction of cocoa butter)”，符合情理；另外，本句之后出现了the extractedbutter，因此，此选项也符合上下文，为正确答案。attraction指“吸引，吸引力，吸引人的事物”，如：The main attraction was aswimming pool near the community．主要吸引人的是那个社区附近有一个游泳池。exploration表示“探索，勘测”，如：They arecrazy about space exploration．他们醉心于宇宙空间的探索。expectation意为“期望，预料，期待之物”，如：The result was beyondmy expectation．这个结果出乎我预料。可见后几个选项都不合题意。
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