Question

third前面填什么是加a还是the

Answer 1

一般情况下，third表示第三, 是序数词, 序数词前面要加定冠词the, 如果序数词前已经有物主代词修饰了,就不要加the了。
third 英[θɜ:d] 美[θɜ:rd]
n. 第三; 三分之一; 第三档;
adj. 第三的; 三分之一的;
[例句]I sleep on the third floor
我睡在三楼。

It was the third time one of his cars had gone up in flames
这是他的车第三次起火。

He came third in the poll with 149 votes
他在选举中获得149票，名列第三。

The attack was the third so far this year.
这是今年迄今为止的第三次袭击。

Only one third get financial help from their fathers
只有三分之一的人得到父亲的经济援助。

Answer 2

third 第三, 是序数词, 序数词前面要加定冠词the, 如果序数词前已经有物主代词修饰了,就不要加the 了