The best way to prevent these hehavious is to warn everybody that the earth (would) become dirty and dangerous one day 为什么括号里不用will用would

The best way to prevent these hehavious is to warn everybody that the earth (would) become dirty and dangerous one day 为什么括号里不用will用would
The best way to prevent these hehavious is to warn everybody that the earth (would) become dirty and dangerous one day 为什么括号里不用will用would

The best way to prevent these hehavious is to warn everybody that the earth (would) become dirty and dangerous one day 为什么括号里不用will用would
这整个句子的意思：
最好的方法来阻止这些行为（应该是破坏环境的行为）就是警告人们地球有一天将会变成很脏的还有到处危机四伏的.
解析：1）用will表示的是一个将来时态,表示将会发生.但是句子的意思是地球现在还没有变成她所想的那样,他表示的就是一种假设,假如人们继续这样破坏环境,将会.,这不是一种必然的趋势,是有前提的.
2）用would,因为这个句子有虚拟语态,假如.人们将会.,其中包含了这样一层意思,用来警告人们不要破坏环境的.所以用would更佳.
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