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.
【C7】

选项 A、with
B、by
C、for
D、besides

答案A

解析 词汇题。惯用法题。选项with做介词,含义非常多,可表示“随着……,……之后”,如:With that remark,he left.说完这句话,他就走了。本句的意思是“随着模型加工的发明,巧克力开始受欢迎”,因此,选项with符合题意,为正确答案。by可表示方式、手段等,意为“靠,用,通过”,如:I cameback by bus.我是乘公共汽车回来的。for也有很多含义,可表因果关系,意为“由于,因为”,如:This is a city famous for its beauty.这是一个以美丽而著称的城市。besides表示“除……之外,还”,如:We have noother dictionaries besides these.除了这些辞典外,我们没有别的辞典了。
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