麻烦解释下这以下句子为什么要这么做 if we don't want to be late,we'd better( take a taix)1.if we don't want to be late,we'd better( take a taix).take a taix可不可以替换成by taix.为什么?2.Parts(部分) of the book are interesting.为什么用Parts不能用Part吗?3.It's about miles from my hone to the supermaket.为什么用miles?能不能用mile或具体数字+mile?4.最后两个英译汉Cheshunt is a few miles to the north of Londonwe had an early supper last evening ,so we took a walk in the park after supper

1。if we don't want to be late,we'd better( take a taix)。take a taix可不可以替换成by taix.
为什么？ 不可以，因为 had better 后面要加动词原形， 可以换成 go there by taxi
2。Parts(部分) of the book are interesting.为什么用Parts不能用Part吗？ 某些部分 ，可能几部分
3。It's about miles from my hone to the supermaket.为什么用miles?能不能用mile或具体数字+mile？ miles就是指几英里 可以换成 数字+miles
4。最后两个英译汉
Cheshunt is a few miles to the north of London 柴斯罕特离伦敦北部几英里远。
we had an early supper last evening ,so we took a walk in the park after supper 我们昨晚吃完饭很早，所以晚饭后我们去公园里散步了。

没有by taix这种搭配
后面的动词是are
可以具体数字+mile，但不能直接用mile
切森特到伦敦的北方有几英里的路程
我们昨晚吃晚饭比较早，所以我们在吃完饭后去公园散步

1.if we don't want to be late,we'd better( take a taix).take a taix可不可以替换成by taix.为什么?had better后接动词原形,by是介词,不可以2.Parts(部分) of the book are interesting.为什么用Parts不能用Part...