Airport Must Stop: Necessity with Must
Words from the text: must stop, arrival, departure, restriction, rule, volcano, airport, flight, ash, airspace, passenger, aircraft
A We use must + verb (no "to") to say something is necessary now. It is often used for strict rules in aviation English.
Catania airport must stop all arrivals and departures.
Airlines must divert or cancel their flights.
Pilots must follow the new rule.
«must» + глагол без частицы «to» выражает строгую необходимость или правило. После must никогда не ставим «to»: must stop, НЕ must to stop.
B Must is the same for every subject: I, you, he, she, it, we, they. We do not add -s.
| Subject | must + verb |
| The airport | must close |
| Airlines | must divert |
| Passengers | must wait |
The airport must close because of the volcano.
Passengers must wait for more information.
The aircraft must stay on the ground.
Must не меняется по лицам и числам: he must, she must, it must — без -s, в отличие от обычных глаголов.
C We use must not (mustn't) to say something is forbidden, not allowed.
Aircraft must not fly through the ash cloud.
Pilots must not enter closed airspace. This is a restriction for safety.
must not запрещает действие. Это новая форма — в этом уроке мы только учимся узнавать её (выбор must / must not).
Exercises
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2.1 Complete the sentences with must and a verb from the box.
Example: The airport ______ (stop) all flights. → The airport must stop all flights.
- The airport (close) because of the volcano.
- Airlines (divert) their flights today.
- Pilots (follow) the new rule.
- Passengers (wait) for more information.
- Crew (check) the aircraft before departure.
- SAC (stop) all arrivals now.
Answers
For open questions, these are model answers. Other answers may also be correct.
- The airport must close because of the volcano.
- Airlines must divert their flights today.
- Pilots must follow the new rule.
- Passengers must wait for more information.
- Crew must check the aircraft before departure.
- SAC must stop all arrivals now.
2.2 Choose must or must not for the airport rule.
Example: Aircraft ______ fly through dangerous ash. → must not
- Pilots check the weather before departure.
- Aircraft enter closed airspace.
- Passengers follow the airport's restrictions.
- Airlines cancel flights without a reason.
- Crew move the aircraft to a safe place.
- Pilots ignore a red warning notice.
Answers
For open questions, these are model answers. Other answers may also be correct.
- must
- must not
- must
- must not
- must
- must not
2.3 Write sentences with must using the words given.
Example: Catania Airport / stop / all flights → Catania Airport must stop all flights.
- Airlines / divert / their flights
- The airport / close / sectors C1 and B3
- Pilots / check / the ash cloud direction
- SAC / follow / the new rules
- Crew / move / the aircraft to Palermo
- Passengers / wait / for a new flight
Answers
For open questions, these are model answers. Other answers may also be correct.
- Airlines must divert their flights.
- The airport must close sectors C1 and B3.
- Pilots must check the ash cloud direction.
- SAC must follow the new rules.
- Crew must move the aircraft to Palermo.
- Passengers must wait for a new flight.
2.4 Complete the sentence with your own idea. Use must.
Example: Pilots must ______ (your idea). → Pilots must check the weather before takeoff.
- Pilots must .
- Airlines must .
- The airport must .
- Passengers must .
- Crew must .
Answers
For open questions, these are model answers. Other answers may also be correct.
- Pilots must check the fuel level.
- Airlines must inform passengers about changes.
- The airport must update its rules every day.
- Passengers must stay near the gate.
- Crew must prepare the aircraft for departure.