water/waters
【问】 New Concept English，Book 4，L. 13的标题是：Thames Waters.
water属物质名词，是不可数的，为什么这里用了复数?
【答】 当water用作物质名词时，确实没有复数形式。但是waters不是用作物质名词，而是表示大量的水、广阔的水域、某个具体海洋、河流、湖泊里的水。例如：the waters of Nile(尼罗河水)、Thames waters(泰晤士河水)等。sands也有类似用法：the sands of the Sahara(撒哈拉大沙漠)。
1. They locate and chart every iceberg in the waters. (RL，Book 2，P. 80)
他们测定海洋中每一座冰山的位置并绘成图表。
2. The ship was in British waters. (EED)
那艘船位于英国水域。
请做下面的英语试题：
This is 
of 
flow out into the sea.
赵振才 编著.英语常见问题解答大词典.哈尔滨：黑龙江人民出版社.1998.第1265-1266页.
- insist/persist
- insist that X (should)be/that X is
- in so far as
- insofar as
- in so far as
- in so far as
- in so far as
- in so far as
- in so far as/insofar as
- in spirit/in spirits
- in spirit/in spirits
- in spite of
- in spite of/despite
- in state/in a state
- instead of
- instead of
- instead of
- instead of
- institute/college/university
- insufferable
- in summer/in the summer
- insure/ensure
- in ten days /in ten days'time
- intended to do/intended to have done
- intention of/to do