求助一道700-800club的题

皮皮虾的小佛佛

是关于because of/ due to的困惑，求大佬解答！
先上题
The number of acres destroyed by wildfires, which have become an ongoing threat due to drought and booming population density, have increased dramatically over the past several years, prompting major concern among local politicians. A which have become an ongoing threat due to drought and booming population density, have increased
B which have become an ongoing threat due to drought and booming population density, have been increasing
C which has become an ongoing threat because of drought and booming population density, has increased
D which have become an ongoing threat due to drought and booming population density, has increased
E which have become an ongoing threat because of drought and booming population density, has increased


答案选E，我错选了D
为什么due to是错的？
解析说D选项due to 错误修饰了动词clause“have become an ongoing threat”，这里应该用because of来修饰。
但是为什么不能看作是due to 引导部分修饰 an ongoing threat呢？而且感觉替换成caused by也说得通呀？
另外，E选项中because of后面加了booming，不是说because of后面不能加ving形式吗？这里怎么解释一下比较好呢？

快考试了竟然发现这种基础语法开始迷惑了……慌得不行
先谢谢各位了

yanhuan0529

这里的booming 是形容词吧，形容population density的，并不是ving形式

皮皮虾的小佛佛

DreameroftheDay 发表于 2019-8-16 11:39
"Due to" should modify nouns, and what it suppose to modify actually comes before it, for example "f ...

啊明白你的意思了。的确是应该这样理解。drought and booming population density导致的是wildfire

DreameroftheDay

"Due to" should modify nouns, and what it suppose to modify actually comes before it, for example "failure due to lack of preparation", the meaning is straight forward and understandable, as lack of preparation leads to failure, the sentence does not need any more context to make sense.

"Because" modify clauses, which include verbs and a whole lot of stuff ("threat" included, as a noun). It modifies the entire clause collectively.

Now look at the choices you are juggling with: D and E,
D: Basically it says "threat due to drought and booming population density", so.... Drought and density led to "threat"??
E: ".....have become an ongoing threat because of drought and booming population density" , so it basically says "Drought and density has led to (wildfire) have become an ongoing threat".


so what is the more logical outcome/result of drought and booming population density? is it a situation ? (i.e. wildfire have become an ongoing threat) or is it just a thing? (i.e. Threat). I agree this one is really subtle, but I think the situation is the intended subject of the modification.


Happy to discuss.

皮皮虾的小佛佛

自己顶顶……