2. 职称英语
  3. Before 8,000 B.C wheat did not grow as prolifically ______ it does today.A、like

Before 8,000 B.C wheat did not grow as prolifically ______ it does today.A、like

游客2023-11-09  19
问题 Before 8,000 B.C wheat did not grow as prolifically ______ it does today.
选项 A、like
B、as
C、for
D、than
答案 B
解析 “as…as…”结构可以引导比较状语从句，该结构中的第一个as是副词(在否定句中，也可用 so替代as)，后跟形容词或副词，第二个as是连词，后跟状语从句，从句中常有省略现象，另外还必须注意比较对象在概念上应一致，如：Electromagnetic waves travel as fast as light．电磁波和光的传播速度一样快。
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