You would use what happened? to refer to an event in the past; · here, whats is the contraction of what has. Do north texans fly out of dallas love field? What happened 和 whats happened两者的区别： 是问 what happened？只是想知道过去所发生的事情， 而如果用whats happened？则强调对现在的影响。，即想知道过去所发生的什么事导致了说话时存在的某种结果。 两者的意思是相同的。 扩展资料 我们学习英语，能学会所有的因素和发音规则，也有可能掌握所有. Does government shutdown affect dallas-fort worth airport? Are airport operations normal during a government shutdown? Why did the faa disrupt friday? · hundreds of flights were canceled over the weekend after a technology failure led to an outage at a dallas-area air traffic control facility on friday, resulting in a multihour ground stop at dfw. · hundreds of flights were delayed and cancelled at dfw and dallas love field airports on friday. The past participle of the main verb the meaning is almost the same, but not quite. An unexpected ground stop on friday at dallas - fort worth international airport and dallas love field disrupted travel for hundreds of passengers, with more than half of the scheduled. What happened还是whats happenedwhat happened和whats happened都用于询问过去发生了什么事情，主要的区别在于语法和使用方式。what happened是一个过去时态的简单 · a telecommunication outage caused federal aviation administration air traffic controllers in dallas to lose radar and some communications friday afternoon, leading to flights being stopped at the. Whats happened? refers to an event in the recent past which has an effect on the present. · the federal aviation administration issued ground stops at dallas love field and dallas-fort worth airports on friday afternoon after a communication issue delayed more than 300 flights. According to flightaware, as of 9 a. m. , there are a total of 226 delays at dfw international airport and 93 cancellations. · on tuesday, dfw airport broke ground on its sixth terminal. Happened的用法如下： 1. happened是 不及物动词,作“发生”解时,可指偶然的事故,也可指有计划或无计划发生的事。一般以事件、环境、形势等作主语,表示“某人发生某事”时,须以介词to引出“某人”。 2. 作“碰巧”解时,其后须接 动词不定式 构成复合谓语,可由 人称代词 或无人称代词it作主语。与if. (今天晚上发生了什么？) - do you know what happened just now? · a telecommunications issue caused hundreds of delays and ground stops at dallas-fort worth area airports friday into saturday morning, the faa says. This is the present perfect, which is constructed using: Is love field a mega-sized airport? Nbc 5’s katy blakey shares what caused the issue. 接下来让我们看下what happen和what happened的用法区别： 1. 词性：what happen是用原形动词happen构成的现在时短语，而what happened是用动词happen的过去式happened构成的过去时短语 例子： - what happened tonight? The helping verb have 2. What happened at dfw and love field airports?
