请问：我们平时不能说 on this / that / next / last day (前不能加介词)

但为什么可以说 until next / last / this / that Friday?

解答如下：

until next Friday

until last Friday

until this Friday

until that Friday

until prep.  到…为止; 在…以前,until+时间名词，表示动作发生在该名词所表示时间之前或者到该名词所表示时间截至/停止。

Brad, however, get around to recording his mortgage until Friday.  

然而, 布瑞格直到星期五才登记其土地抵押权.

Can you trust me for a packet of cigarettes until Friday?  

赊我一包香烟,星期五再付钱好 吗 ?

Can I book a double room from now until Friday?  

我能订一间从现在起到星期五的双人房间 吗 ?

以上都是介词until+名词短语构成借此短语作时间状语

this day

that day

next day

以上属于时间副词词组作时间状语。

She was taken into custody later that day.  

她那天后来被拘留了。

Little Constance had a temperature that day.  

小康斯坦丝那天发烧了。

It felt wintry cold that day.  

那天感觉像冬天一样寒冷。

有时候可以可以加介词on，构成介词短语作时间状语。

The court sat to receive essions on this day.  

在这一天法院收到宽恕请求.

Here the local were always barbered at this hour on this day.  

原来本地人老是在这一天这个时候这个地方理发.

It's said the moon is the brightest and roundest on this day.  

据说这一天的月亮是最亮最圆的.

On that day mothers usually receive flowers and cards.  

在那天,母亲们经常会收到鲜花和卡片.

1.《牛津英语用法指南》指出：在以 next, last, this, that (有时候), one, every, each, some, any(在非正式文体中), all等词开头的一些表示时间的常用表达方式前面，不用介词。如：

See you next Monday. 下星期一见。（不能说 ...on next Monday）

The meeting’s this Thursday. 会议定在这个星期四开。

We met one Tuesday in August. 八月份的某个星期二我们见了面。

I’ll never forget meeting you that afternoon. 我永远不会忘记那天下午我见到你的情形。

Come any day you like. 你喜欢那天来就哪天来。

The party lasted all night. 聚会持续了整整一夜。

2.关于until,我同意前面两位老师的解答。until作为时间介词的用法较为特殊，它不仅可以接表示时间的名词或副词，还可以接介词短语或从句。如：

They didn't close with each other until near the end of the meeting. 他们直到会议将近结束时才达成协议。

They didn't reach the station until after the train had left. 直到火车开走之后，他们才到达车站。