Smells that warn Lesson 13 of the everyday course of Mova's primary school: 17 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 .
0 Your nose is an early-warning system: it can pick up tiny amounts of some substances in the air long before you can see anything. 1 A smell of smoke can mean something is burning; act on it even if you see no flames. 2 Natural gas for cooking and heating has no smell of its own, so gas companies add a chemical that smells like rotten eggs, just so people notice a leak. 3 Spoiled food often smells sour or bad because bacteria and moulds grow in it; but some germs that make you ill give no smell, so a good smell does not prove food is safe. 4 Example: you walk into a kitchen and smell rotten eggs — do not touch the light switch; leave, and tell an adult from outside. 5 A family in Boston had a boiler that leaked carbon monoxide, a gas with no smell; they kept getting headaches and feeling sleepy until a carbon monoxide alarm went off and they got out in time. 7 Natural gas has no smell, so a strong-smelling chemical is added to make leaks noticeable. 8 Leaking gas smells like rotten eggs. 10 If you smell gas, do not touch switches; leave the building and call for help from outside. 11 Hot smoke rises, so in a fire the cleaner air is near the floor. 12 If you smell smoke, tell an adult at once, and get out if it is not clearly safe. 14 Spoiled food may smell sour or rotten because bacteria (tiny living things too small to see) and moulds are breaking it down. 15 Some bacteria that cause food poisoning do not change how food smells or looks. 16 A safe rule for doubtful food is: when in doubt, throw it out. 17 After you smell something for a while, your nose gets used to it and you notice it less. 19 Carbon monoxide has no smell or colour, and it can make people sleepy, sick and even kill them. 20 A gas leak can explode if a flame or spark lights it. ← previous Sounds that warnnext → Reading faces and voices↑ back to Everyday This page in Markdown → https://md.mova.elamur.ai/free/en/corpora/school/everyday/13-smells-that-warn/