it is too expensive for （either还是both） of us to buy 为什么?

来源：学生作业帮编辑：作业帮分类：英语作业时间：2024/05/24 12:40:35

either
从主语It 来看,这只是一样东西,所以只能落入这两个人中的一人之手,两者中的任何一个是either.两者都是both,这是不可能的,别忘了只有一样东西
很高兴为您解答,fightout为您答疑解惑
如果本题有什么不明白可以追问,
再问：那如果是复数，如books呢
再答：可以。但要注意是【部分否定】因为too....to... 结构表否定，和总括词both everything everyone everybody 等连用时便是部分否定 The books are too expensive for 【both】 of us to buy 这些书太贵，不是我们俩都能买得起的。（潜台词：只有一个人能买得起）所以，即便再有钱，最好别当着对方的面说谁买得起，谁买不起。我的意思是你的这种假定是语法上正确，实际上很少使用而too...to “太。。。而不能” 这个否定结构和either 连用时，就是全部否定了。即有not...either=neither 的意思。也就是说两个都买不起
再问：为什么不用neither呢
再答：我说了，因为too...to 结构已经有否定意思了，还能用否定词neither 吗？ not...either = neither

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