--- title: Swimming out too far: sea, rivers, lakes and quarries — a lesson of Mova's school · trees and pragmatics description: «Swimming out too far: sea, rivers, lakes and quarries», a lesson of the medicine course of Mova's primary school, sentence by sentence with dependency trees and pragmatics. It begins: Kai, 10, on a Cornwall beach paddles out past the red-and-yellow flags: «Them flags are for babies, our kid»; two m --- [Mova](https://md.mova.elamur.ai/free/en/) · [this page in HTML](https://mova.elamur.ai/free/en/corpora/school/medicine/71-swimming-out-too-far-sea-rivers-lakes-and-quarries/) [home](https://md.mova.elamur.ai/free/en/) / [corpora](https://md.mova.elamur.ai/free/en/corpora/) / [school](https://md.mova.elamur.ai/free/en/corpora/school/) / [Medicine](https://md.mova.elamur.ai/free/en/corpora/school/medicine/) / Swimming out too far: sea, rivers, lak… # Swimming out too far: sea, rivers, lakes and quarries Lesson 71 of the medicine course of Mova's primary school: 14 sentences, each with its syntax tree and pragmatics. The lessons are written for Mova, and their agreed trees are part of Mova corpus 0.4 (CC BY-SA 4.0). How Mova does on its tests: [the lesson at school](https://md.mova.elamur.ai/free/en/school-run/medicine/71-swimming-out-too-far-sea-rivers-lakes-and-quarries/). - [0](https://md.mova.elamur.ai/free/en/corpora/school/medicine/71-swimming-out-too-far-sea-rivers-lakes-and-quarries/0/) — Kai, 10, on a Cornwall beach paddles out past the red-and-yellow flags: «Them flags are for babies, our kid»; two minutes later the beach looks small, because outside the flags is where rip currents often run, strong channels of water flowing out to sea, and no lifeguard is watching that water. - [1](https://md.mova.elamur.ai/free/en/corpora/school/medicine/71-swimming-out-too-far-sea-rivers-lakes-and-quarries/1/) — Every summer children drown in UK seas, rivers, lakes and quarries, often on hot sunny days and often close to the shore; it happens fast and quietly, and it can't be undone, so the rules here are not for babies, they are the reason those children aren't you. - [3](https://md.mova.elamur.ai/free/en/corpora/school/medicine/71-swimming-out-too-far-sea-rivers-lakes-and-quarries/3/) — A drowning person usually can't shout or wave; they bob quietly with the mouth at the water line, so if someone in the water looks wrong, you shout for a lifeguard or adult straight away. - [4](https://md.mova.elamur.ai/free/en/corpora/school/medicine/71-swimming-out-too-far-sea-rivers-lakes-and-quarries/4/) — If someone is in trouble, you never go in after them: Call 999 (at the coast ask for the Coastguard), Tell them to lean back and float, Throw something that floats, all from the bank. - [5](https://md.mova.elamur.ai/free/en/corpora/school/medicine/71-swimming-out-too-far-sea-rivers-lakes-and-quarries/5/) — Lifeguards watch the water between the red-and-yellow flags; outside them nobody may be watching. - [6](https://md.mova.elamur.ai/free/en/corpora/school/medicine/71-swimming-out-too-far-sea-rivers-lakes-and-quarries/6/) — A rip current is a strong channel of water flowing away from the beach; it pulls you out, not under, people drown when they tire and chill fighting it, and a strong rip can move about as fast as an Olympic swimmer. - [8](https://md.mova.elamur.ai/free/en/corpora/school/medicine/71-swimming-out-too-far-sea-rivers-lakes-and-quarries/8/) — UK seas, lakes, rivers and quarries stay cold all year, and sunny air does not mean warm water. - [9](https://md.mova.elamur.ai/free/en/corpora/school/medicine/71-swimming-out-too-far-sea-rivers-lakes-and-quarries/9/) — Cold water shock can start in water below about 15 °C: you gasp and can't control your breathing, and if your head is under you can breathe in water. - [10](https://md.mova.elamur.ai/free/en/corpora/school/medicine/71-swimming-out-too-far-sea-rivers-lakes-and-quarries/10/) — The gasping from cold water shock usually passes in about 60 to 90 seconds, and floating on your back keeps your face up while it does. - [11](https://md.mova.elamur.ai/free/en/corpora/school/medicine/71-swimming-out-too-far-sea-rivers-lakes-and-quarries/11/) — Flooded quarries are often very deep and very cold, with steep sides you can't climb out on and old machinery under the surface; bright blue water can come from minerals and hides the danger. - [12](https://md.mova.elamur.ai/free/en/corpora/school/medicine/71-swimming-out-too-far-sea-rivers-lakes-and-quarries/12/) — Fast-moving water can knock you off your feet even below the knee, and riverbeds are slippery. - [14](https://md.mova.elamur.ai/free/en/corpora/school/medicine/71-swimming-out-too-far-sea-rivers-lakes-and-quarries/14/) — People who jump in to rescue someone often drown themselves; the RLSS advice is Call 999, Tell them to float, Throw something that floats. - [15](https://md.mova.elamur.ai/free/en/corpora/school/medicine/71-swimming-out-too-far-sea-rivers-lakes-and-quarries/15/) — At the coast, call 999 and ask for the Coastguard; wind blowing off the land can push inflatables far out to sea in minutes. - [16](https://md.mova.elamur.ai/free/en/corpora/school/medicine/71-swimming-out-too-far-sea-rivers-lakes-and-quarries/16/) — The tide comes in across flat sand faster than you can walk and fills channels behind you first, cutting off sandbanks. - ← previous: [The kid who is always on the bench](https://md.mova.elamur.ai/free/en/corpora/school/medicine/70-the-kid-who-is-always-on-the-bench/) - next →: [Bike helmets and roads](https://md.mova.elamur.ai/free/en/corpora/school/medicine/72-bike-helmets-and-roads/) - ↑ back to [Medicine](https://md.mova.elamur.ai/free/en/corpora/school/medicine/)