1. Boulder, Colorado, is only city in the United States that derives its water supply from a glacier.
答案:A.is onlyà is the only
分析:定冠词使用。
参考译文:科罗拉多州的Boulder是美国唯一的从一处冰川获得供水的城市。
2. Construction of first skyscraper began in Chicago in 1883 with the ten-story Home Insurance Building.
答案:B.of firstàof the first
分析:定冠词的使用。最高级前加the
参考译文:最早的高楼建筑1883年出现在芝加哥,是一幢10层的家庭保险大楼。
3. The Mississippi riverboat, which evolved from simpler steamship of the early 1800's, became the dominant form of passenger transport on the Mississippi River.
答案: steamshipàsteamships
分析:单数可数名词不能单独出现。需要注意的是,transport这里作名词,有“运输工具”的意思
参考译文:密西西比河船,在1800从简单的汽船演变过来,成为密西西比河上重要的旅客交通形式。
4. Modern stringed instruments comprise both instruments of ancient origin, such as the harp, and the developed recently family of bowed instruments that includes the violin.
答案:D.developed recentlyàrecently developed
分析:词序颠倒。
参考译文:现代弦乐乐器不仅包含有源于古代的乐器,如竖琴,也有最近发展的包括小提琴的弓形乐器。
5. Stars provided early astronomer with a reference system for measuring the motions of planets, the Moon, and the Sun.
答案:Aàastronomers
分析及考点:可数名词单数单独出现,一般都错。
参考译文:天上的星星给早期天文学家提供了一个参照系统来测量行星、月亮和太阳的移动。