ron神视频课有一道题providing initial evidence that airports are a larger source of pollution that they were once believed to be, environmentalists in chicago report that the total amount of pollutant emitted annually by vehicles at the o'hare international airport is twice as much as that which is being emitted annually by all motor vehicles in the chicago metro areaa as much as that which is being emitted annually by all
b as much annually as is emitted by the
c as much compared to what is annually emitted by all
d that emitted annually by all
e that emitted annually compared to
正确选项是d 那么句子结构就是 the pollutant emitted annually by ..(a).. is twice that emitted annually by ..(b).. 课上说这是平行结构，那么twice是可以作为parallel tag吗?
靴靴大家
可以这么理解
1. twice 前后的比较对象一定是要能比较的对等对象，这题里面省略了 is twice (the total amount of pollutant) emitted annually, 可以理解为是一个平行结构，但是大部分的比较结构其实都不是那么平行，重点看语义
2.twice后面直接 number amount, twice as much/many as后面接具体的名词，比如apple
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发表于 2019-9-22 18:41:43
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