The phrase "are shot off" is correct and usable in written English.
It can be used in contexts where something is being fired or launched, often referring to projectiles or signals.
Example: "The fireworks are shot off at midnight to celebrate the New Year."
Alternatives: "are fired" or "are launched".
There, I watch the fireworks that are shot off from neighboring Playland amusement park: red and blue, silver and gold bursts that shimmer against the night sky and reflect on the smooth black water.
This is so often the case; compare the media fuss that surrounded the shocking genital mutilation of Lars von Trier's Antichrist with the virtual silence that met Crank 2 the same year, in which a woman's breasts are shot off for supposedly "humorous" effect.
Every Fourth of July, the Roosevelt Island Operating Corporation, which governs the island, would open the steely gate that closed off Southpoint Park and, for $15, let people bring their picnics and children to gape at the fireworks, which each year are shot off barges between 23rd and 42nd Streets in the East River.
"Now the supporters of the aetherial theory do not deny that electrified particles are shot off from the cathode; they deny, however, that these charged particles have any more to do with the cathode rays than a rifle-ball has with the flash when a rifle is fired" (Thomson 1897, p. 294).
When the fireworks special actually airs, however, the fireworks are shot off in midtown New York outside Rockefeller Center and it ends up looking like a terrorist attack.
If things are shooting off or moving, just stare straight ahead and don't worry about it.
(Imagine a cannonball that was shot off a cliff, compared to one shot at a hill that rolls down and is stopped by the ground cover).
Other men, whose legs had been shot off slumped in their harness.
The footage was shot off Cape Cod during a white shark research trip taken on August 17 2015.
For most of us, if our finger was shot off, we wouldn't be laughing.
