2. 外语
  3. The method for making beer has changed over time. Hops (啤酒花) , for example, which give many a modem beer its bitter flavor, are

The method for making beer has changed over time. Hops (啤酒花) , for example, which give many a modem beer its bitter flavor, are

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问题     The method for making beer has changed over time. Hops (啤酒花) , for example, which give many a modem beer its bitter flavor, are a【C1】______ recent addition to the beverage. This was first mentioned in reference to brewing in the ninth century. Now, researchers have found a【C2】______ ingredient in residue (残留物) from 5000-year-old beer brewing equipment. While digging two pits at a site in the central plains of China, scientists discovered fragments from pots and vessels. The different shapes of the containers【C3】______ they were used to brew, filter, and store beer. They may be ancient "beer-making tools", and the earliest【C4】______ evidence of beer brewing in China, the researchers reported in the Proceedings of the National Academy of Sciences. To【C5】______ that theory, the team examined the yellowish, dried【C6】______ inside the vessels. The majority of the grains, about 80% , were from cereal crops like barley (大麦), and about 10% were bits of roots,【C7】______ lily, which would have made the beer sweeter, the scientists say. Barley was an unexpected find: the crop was domesticated in Western Eurasia and didn’t become a【C8】______ food in central China until about 2,000 years ago, according to the researchers. Based on that timing, they indicate barley may have【C9】______ in the region not as food, but as【C10】______ material for beer brewing.
A) arrived I) relatively
B) consuming J) remains
C) direct K) resources
D) exclusively L) staple
E) including M) suggest
F) inform N) surprising
G) raw O) test H) reached
【C5】
选项
答案O
解析 空格前为动词不定式标志to，空格后为名词that theory，故本空需要填入一个动词。结合句意可知，为了测试这一理论，该研究团队对容器里面发黄、干燥的残留物进行了检测。备选项中只有test(试验，测试)符合句意，故答案为O。
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