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  3. The ancient Aztecs venerated the cacao tree and used its beans as a form of

The ancient Aztecs venerated the cacao tree and used its beans as a form of

游客2023-11-17  39
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. [br] 【C11】
选项 A、as
B、since
C、when
D、as soon as
答案 A
解析 词汇题。词义辨析题。as“同时，当……时”。when也表示同样的含义。但as暗指事情的发展过程，本句的含义为“在冷却的过程中逐渐形成各种形状”，因此，as为最佳答案。此处如用when，则指“冷却后，就会形成各种形状”，不如as准确。since“自……以来”，如：They have been friendssince childhood．他们从幼时起一直是好朋友。选项since表“自冷却以来，一直在形成各种形状”，不合客观实际。as soon as“一…就”，“一冷却下来就形成各种形状”也与客观实际不符。常识告诉我们物质经过高温加热再冷却成形是一个逐步的过程，不可能一蹴而就。因此，这两个选项也不能选。
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