时刻表：火车 6 点出发 (A2)

说由时刻表或日程安排决定的将来事件（火车、电影、上课、开放时间），用一般现在时：leaves、starts、opens（it、the train、the film 这类主语要加 -s）。

时刻表用一般现在时

The train leaves at 6.
The film starts at 8 tonight.
The shop opens at 9 on Monday.
Not "The train is leaving at 6 tomorrow morning." — say "The train leaves at 6 tomorrow morning.". 固定的时刻表就算说将来的事，也用一般现在时：leaves，而不是 is leaving。
试一试: The film ___ at 8 tonight, says the cinema website. (starts / is starting / start) 答案: starts — 固定的放映时间就是时刻表，所以用一般现在时加 -s：The film starts at 8.（电影 8 点开始。）“Is starting” 适合个人计划，而 “start” 又漏掉了 the film 该加的 -s。

说固定的时刻表（自己改不了）用一般现在时。说自己安排好的计划（自己定下来的）用 am/is/are + -ing。

The train leaves at 6. (the timetable says so)
I'm catching the 6 o'clock train. (my plan)
The class finishes at 4. / I'm meeting Mei after class.
试一试: Hiroshi 正在看墙上贴的公交时刻表。他说的是公交车定好的出发时间，不是他自己的安排。哪种形式适合固定的时刻表？ (The bus leaves at 7:15. / The bus is leaving at 7:15.) 答案: The bus leaves at 7:15. — 贴出来的时刻表是固定的，不是他自己的安排，所以用一般现在时：The bus leaves at 7:15.（公交车 7:15 出发。）“Is leaving” 适合个人安排，但时刻表要用一般现在时（leaves）。

问时刻表相关的事，就像普通的一般现在时问句一样，用 do / does + 动词原形：What time does it ...?

What time does the train leave?
When does the film start?
Does the shop open on Sunday?
Not "When the train leaves?" — say "When does the train leave?". 问句里用 does + 动词原形：does the train leave。
试一试: What time ___ the last train ___? (does … leave / does … leaves / is … leaving) 答案: does … leave — 问时刻表用 does + 动词原形：What time does the train leave?（火车几点出发？）does 后面动词要用原形（不是 “leaves”），时刻表也不会用 “is leaving”。
试一试: The match ___ at 3 (it's on the schedule), and I ___ Lars there at 2:30 (we arranged it). (starts … 'm meeting / is starting … meet / starts … meet) 答案: starts … 'm meeting — 比赛时间是固定的日程 → 用一般现在时：starts。跟 Lars 见面是自己安排的计划 → 用 am/is/are + -ing：I'm meeting。时刻表用一般现在时，自己的计划用 -ing。