关于冒号的用法manhattan上的说明:
(1) 冒号是对前面提出的信息起补充说明作用,可以在冒号后面加namely或者that is。
(2) 冒号前的分句必须能够单独成句,冒号后的则不一定。
(3) 紧挨着冒号前的成分与冒号后的解释成分越近越好
Worse: Three factors affect the rate of a reaction: concentration, surface area, and temperature.
Right: The rate of a reaction is affected by three factors: concentration, surface area, and
temperature.
(4) 冒号后可以加入一个主句,用以解释冒号前的内容。
EG: On January 1, 2000, the national mood was completely different from what it would become just a few years later: at the turn of the century, given a seemingly unstoppable stock market and a seemingly peaceful world, the country was content.
Accuracy wise, the use of ‘being’ is still suspect. ‘Being’ is not used to describe a state; it is used to describe an ongoing action such as ‘the tree is being uprooted’.
Colon is used if you need to give a list and hence, is not suitable here.