第二个as是介词还是关系副词？

This dress is twice as expensive as that one. 第二个as是介词还是关系副词？

This dress is twice as expensive as that one. 第二个as是介词还是关系副词？

【答】第一个as是程度副词，类似否定时的so，意为“那样的”；第2个as是从属连词，引导比较从句。as that one等于as that one is。

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陈才 - 英语教师 1秒前

擅长：中考英语,词法问题

This dress is twice as expensive as that one. 第二个as是介词还是关系副词？

第1个as为副词

第2个as为连词,在否定句可以用so替换,用来引导比较状语从句

This dress is twice as expensive as that one (is expensive)

这件衣服是那件衣服的2倍贵.

例如: Tom is not so tall as Jack (is tall)

This rope is three times as long as that one (is long)