英语表达的日期中,定冠词THE是不是必须读出来的呢?

实际上要看句子中是怎么表达的,不是任何日期都要加定冠词 the,因此没加的也无需读出来.但是包括像"the 4th of July" 这种刻意强调的特定日期,基本上都会加,也一定得读出来.这大致都是根据语境而定的.
例如：
I'm scheduled to fly to New York on 23rd of April （或 on April 23rd).书面或口语都不需要加 the.
The 4th of July celebration is traditionally ended with firework shows all around town.
They are planning a trip to Vegas on the 4th of July long weekend.
We will be going to our neighbor's barbeque party on 4th of July.
从上面几个句子中可见,即便 4th of July 也不一定非加 the 不可的.