Thinking like a lifeguard

Tests: 9 of 19 right · Exam: 2 of 4 right · Kind: ★★★ · Understood: 16 of 23 · Run: 2026-10-18, commit f3c23ea72

Lesson 50 of the everyday course of Mova's primary school, as Mova's small model took its tests: it had read this lesson and the ones before it and learned from their exercises. Each test shows the options in the order the student saw them, its choice, the right answer, the score of every option and why it chose. The lesson itself, sentence by sentence with trees and pragmatics: the lesson in the corpora.

Every question of this lesson and each of its options parsed by Mova, with trees and pragmatics: the lesson's questions in the corpora.

Test 1 · ★★★ · wrong ✗

A girl in a thunderstorm on a golf course in Florida can run to the clubhouse or to a big lone oak. Which is safer and why?

1. The oak, because lightning avoids living things — ← Mova's choice · no support
2. Either, because lightning never strikes the same place — no support
3. The clubhouse, because a lone tall tree draws lightning — ✓ the right answer · no support
4. The oak, because its leaves keep her dry — no support

Why: No option found support in what it remembers, so it guessed: it took the first option shown. · the question and its options parsed, with trees and pragmatics

Test 2 · ★★★ · wrong ✗

A family on a camping trip counts 15 seconds between a flash and its thunder. About how far away is the lightning?

1. About 15 kilometres — ← Mova's choice · score 6
2. About 5 kilometres — ✓ the right answer · score 6
3. About half a kilometre — score 6
4. About 45 kilometres — score 6

Why: It took the question to ask what something is like. It chose option 1 with score 6, tied with another option at 6 (the first shown, or the one claiming less beyond what it knows, wins). Its support: lesson 15, line 5: «Example: on a beach in Florida, a boy counts 12 seconds from flash to bang — the lightning is about 4 kilometres away, close enough to strike, so his family le…», reached through the option's own match among the sentences about the question's things. What matched: the same doer «lightning» (+3); the same circumstance (+2); the same light verb (be, have, do, get, go) (+1). The right option, 2, scored 6. · the question and its options parsed, with trees and pragmatics

Test 3 · ★★★ · right ✓

Which is true about a car in a lightning storm?

1. An open-topped car is just as safe — score 2
2. Cars attract lightning and should be left at once — no support
3. Its rubber tyres stop the lightning from reaching the ground at all — no support
4. Its metal body carries the current around the people inside — ← Mova's choice · ✓ the right answer · score 6

Why: It took the question to ask which statement is true. It chose option 4 with score 6, against 2 for the next best. Its support: lesson 50, line 3: «Lightning usually strikes the tallest thing around, so a lone tree in a field is the worst shelter: the strike can jump from the trunk to a person or spread th…», reached through a sentence linked to the one the question matched. What matched: the same action «carry» (+2); the same doer «metal body» (+2); the same thing acted on «current» (+2). · the question and its options parsed, with trees and pragmatics

Test 4 · ★★★ · wrong ✗

On a beach with big waves, where would you expect the strongest flow out to sea?

1. Where the biggest, loudest waves are crashing onto the sand — ← Mova's choice · no support
2. Right at the edge of the dry sand — no support
3. Only far out beyond the horizon — no support
4. In a narrow gap where fewer waves are breaking — ✓ the right answer · no support

Why: No option found support in what it remembers, so it guessed: it took the first option shown. · the question and its options parsed, with trees and pragmatics

Test 5 · ★★★ · wrong ✗

A boy from Toronto steps off the kerb in Auckland after looking left and seeing nothing. Which lane might have a car he missed?

1. The cycle lane, as cars do not use the near lane — score 6
2. The far lane, with cars coming from his left — ← Mova's choice · score 11
3. No lane, because Auckland roads are one way — no support
4. The nearest lane, with cars coming from his right — ✓ the right answer · score 11

Why: It took the question to ask who or what does it. It chose option 2 with score 11, tied with another option at 11 (the first shown, or the one claiming less beyond what it knows, wins). Its support: lesson 41, line 4: «In the USA and Canada cars drive on the right, so the nearest cars come from your left; in the UK, Ireland, Australia and New Zealand cars drive on the left, s…», reached through the option's own match among the sentences about the question's things. What matched: the same action «come» (+4); it fills the role the question asks for (+3); the same doer «nearest cars» (+2); the same place «left» (+2). The right option, 4, scored 11. · the question and its options parsed, with trees and pragmatics

Test 6 · ★★★ · wrong ✗

A swimmer is pulled out by a rip but stays calm, floats and then swims across the beach. Why did this work?

1. Calm swimmers are not felt by the current, so it lets them go — no support
2. Floating made the water stop moving — no support
3. The rip was narrow, so the sideways swim got her out — ✓ the right answer · score 1
4. The rip turned around to bring her home — ← Mova's choice · score 3

Why: It took the question to ask why something happens (its cause). It chose option 4 with score 3, against 1 for the next best. Its support: lesson 44, line 16: «If a rip takes you, you float, signal for help, or swim parallel to the shore, which means sideways, along the beach.», reached through the same lesson line as the sentence the question matched. What matched: the same doer «rip» (+3); the same action «take» (+2). Against it: a different thing acted on (counts against) (-1); one says «not», the other does not (counts against) (-1). The right option, 3, scored 1. · the question and its options parsed, with trees and pragmatics

Test 7 · ★★★ · wrong ✗

If there were no gaps between sandbanks along a beach, where could a rip still form?

1. Wherever the returning water finds an easier way out, such as beside rocks or a pier — ✓ the right answer · no support
2. Only on beaches with no waves at all — score 2
3. Nowhere, because rips need sandbanks to exist and cannot form without them on any beach — score -2
4. Only in the middle of the open ocean — ← Mova's choice · score 5

Why: It took the question to ask where. It chose option 4 with score 5, against 2 for the next best. Its support: lesson 50, line 9: «A rip forms where that water rushes back out through a narrow gap, such as a deeper dip between sandbanks, or beside rocks or a pier.», reached through the remembered sentence the question matched. What matched: the same doer «rip» (+3); the same action «form» (+2). The right option, 1, found no support in what it remembers. · the question and its options parsed, with trees and pragmatics

Test 8 · ★★★ · right ✓

Why is a fluorescent vest useful for a road worker in the day but not enough at night?

1. Fluorescent colours glow in daylight; at night reflectors return the headlights — ← Mova's choice · ✓ the right answer · no support
2. Road workers only work in the daytime — no support
3. Fluorescent colours glow brighter at night, when headlights shine on them from far away — no support
4. Reflectors work only in sunshine — no support

Why: No option found support in what it remembers, so it guessed: it took the first option shown. · the question and its options parsed, with trees and pragmatics

Test 9 · ★★★ · wrong ✗

Thunder and lightning come at the same moment. What does this tell you?

1. The storm is right overhead and very dangerous — ✓ the right answer · no support
2. The storm is far away and harmless — no support
3. The storm is moving away fast — ← Mova's choice · score 2
4. Lightning and thunder have mixed up their order today — no support

Why: It took the question to ask what it is done to. It chose option 3 with score 2, the only option with support. Its support: lesson 48, line 14: «In an earthquake you drop, cover and hold on; if you are outside, you first move away from walls, buildings and wires that could fall.», reached through the option's own match among the sentences about the question's things. What matched: the same action «move away» (+2); the same property (+1). Against it: a different doer (counts against) (-1). The right option, 1, found no support in what it remembers. · the question and its options parsed, with trees and pragmatics

Test 10 · ★★★ · right ✓

why is swimming sideways out of a rip enough

1. The sea is flatter sideways — no support
2. Most rips are narrow — ← Mova's choice · ✓ the right answer · score 7
3. Rips stop sideways — no support
4. Rips pull you under — no support

Why: It took the question to ask which statement is true. It chose option 2 with score 7, the only option with support. Its support: lesson 44, line 5: «A boy on a Queensland beach who fights straight back against a rip gets tired and frightened, while the boy who floats or swims sideways soon escapes it, becau…», reached through the same lesson line as the sentence the question matched. What matched: the same doer «rip» (+4); the same property (+2); the same light verb (be, have, do, get, go) (+1). · the question and its options parsed, with trees and pragmatics

Test 11 · ★★★ · right ✓

storm on the golf course, under the big tree?

1. Yes, lie under it — no support
2. Yes, trees are safe — no support
3. No, lightning hits tall things — ← Mova's choice · ✓ the right answer · score 6
4. Yes, the leaves keep you dry — no support

Why: It took the question to ask which statement is true. It chose option 3 with score 6, the only option with support. Its support: lesson 50, line 3: «Lightning usually strikes the tallest thing around, so a lone tree in a field is the worst shelter: the strike can jump from the trunk to a person or spread th…», reached through a sentence linked to the one the question matched. What matched: the same action «strike» (+2); the same doer «lightning» (+2); the same thing acted on «tallest thing» (+2). · the question and its options parsed, with trees and pragmatics

Test 12 · ★★★ · wrong ✗

in the car in the storm, are we safe

1. No, open the windows — no support
2. No, cars attract lightning — no support
3. Yes, the metal body carries the current around us — ✓ the right answer · no support
4. Yes, because of the rubber tyres, they stop it — ← Mova's choice · score 4

Why: It took the question to ask which statement is true. It chose option 4 with score 4, the only option with support. Its support: lesson 5, line 5: «Drivers often do not see children, so try to catch the driver's eye; a boy in Austin waits at a driveway until the reversing car has stopped and the driver has…», reached through the option's own match among the sentences about the question's things. What matched: the same action «stop» (+2); the same thing acted on «reversing car» (+2). The right option, 3, found no support in what it remembers. · the question and its options parsed, with trees and pragmatics

Test 13 · ★★★ · right ✓

visiting london from texas, cross like at home?

1. No, look right first there — ← Mova's choice · ✓ the right answer · score 5
2. Yes, roads are the same — no support
3. Only look ahead — no support
4. Yes, left first everywhere — no support

Why: It took the question to ask which statement is true. It chose option 1 with score 5, the only option with support. Its support: lesson 41, line 5: «A boy from Ohio visiting London who looks left first, as he does at home, may step out right in front of a bus coming from his right; that is why London paints…», reached through the same lesson line as the sentence the question matched. What matched: the same action «look» (+4); the same property (+2). Against it: a different doer (counts against) (-1). · the question and its options parsed, with trees and pragmatics

Test 14 · ★★★ · right ✓

our dog's in the river and can't get out!!

1. Do not go in, call an adult or emergency services — ← Mova's choice · ✓ the right answer · no support
2. Wade in up to your chest — no support
3. Jump in and grab him — no support
4. Swim out with a rope tied round your waist, it's fine — no support

Why: No option found support in what it remembers, so it guessed: it took the first option shown. · the question and its options parsed, with trees and pragmatics

Test 15 · ★★★ · right ✓

kid at the pool has gone quiet with his head low in the water

1. Shout for the lifeguard straight away — ← Mova's choice · ✓ the right answer · no support
2. Swim over and laugh — no support
3. Splash him to wake him — no support
4. Wait and see if he is just playing a game — no support

Why: No option found support in what it remembers, so it guessed: it took the first option shown. · the question and its options parsed, with trees and pragmatics

Test 16 · ★★★ · right ✓

Max says good swimmers can always save someone who's drowning. true?

1. Yes, good swimmers are always safe — no support
2. Yes, if they jump in fast — no support
3. No, a panicking person can pull a rescuer under — ← Mova's choice · ✓ the right answer · score 9
4. Yes, unless the water is cold — no support

Why: It took the question to ask which statement is true. It chose option 3 with score 9, the only option with support. Its support: lesson 50, line 21: «Many people who drown are trying to save someone else; a panicking person in the water can grab a rescuer and pull them under.», reached through the same lesson line as the sentence the question matched. What matched: the same doer «panicking person» (+4); the same thing acted on «rescuer» (+4); a different action (counts against) (+1). · the question and its options parsed, with trees and pragmatics

Test 17 · ★★★ · wrong ✗

heard a guy got struck by lightning cos he stood under the only tree in the field to stay dry

1. Real lesson: lightning often strikes the tallest thing, so never shelter under a lone tree — ✓ the right answer · score 4
2. It proves fields are always safe without trees — score 3
3. Real lesson: trees only get struck when it rains, so stand under them before the rain starts — no support
4. It is gossip, so lone trees are good shelter — ← Mova's choice · score 5

Why: It took the question to ask which statement is true. It chose option 4 with score 5, against 4 for the next best. Its support: lesson 50, line 3: «Lightning usually strikes the tallest thing around, so a lone tree in a field is the worst shelter: the strike can jump from the trunk to a person or spread th…», reached through a sentence linked to the one the question matched. What matched: the same doer «lone tree» (+2); the same thing acted on «worst shelter» (+2); the same light verb (be, have, do, get, go) (+1). The right option, 1, scored 4. · the question and its options parsed, with trees and pragmatics

Test 18 · ★★★ · right ✓

my cousin reckons ur safe in a car in a storm cos the rubber tyres stop the lightning

1. He is right, rubber tyres are the reason — no support
2. Wrong reason; the metal body carries the current around you, not the tyres — ← Mova's choice · ✓ the right answer · score 7
3. He is right, so a soft-top car with rubber tyres is just as safe — no support
4. He is right, bikes have rubber tyres too — no support

Why: It took the question to ask which statement is true. It chose option 2 with score 7, the only option with support. Its support: lesson 15, line 16: «A hard-topped metal car protects you because its metal body carries the lightning around you; the rubber tyres do not.», reached through the option's own match among the sentences about the question's things. What matched: the same action «carry» (+2); the same doer «metal body» (+2); the same circumstance (+2); a different thing acted on (counts against) (+1). · the question and its options parsed, with trees and pragmatics

Test 19 · ★★★ · wrong ✗

Jayden got pulled out by a lifeguard at the beach and people say he can't swim, pass it on

1. Pass it on, so he takes lessons — ← Mova's choice · score 4
2. Do not pass it on; strong swimmers get caught in rips too, and it would embarrass him — ✓ the right answer · score 3
3. Pass it on, because it is true — score 4
4. Pass it on, and add that he panicked and screamed so loud the whole beach heard him — score 4

Why: It took the question to ask which statement is true. It chose option 1 with score 4, tied with another option at 4 (the first shown, or the one claiming less beyond what it knows, wins). Its support: lesson 15, line 5: «Example: on a beach in Florida, a boy counts 12 seconds from flash to bang — the lightning is about 4 kilometres away, close enough to strike, so his family le…», reached through the option's own match among the sentences about the question's things. What matched: the same action «leave» (+2); the same thing acted on «beach» (+2). The right option, 2, scored 3. · the question and its options parsed, with trees and pragmatics

Exam question 1 · formal language · wrong ✗

Which of the following statements most accurately characterises the formation of a rip current?

1. Fish swimming together create a strong current — no support
2. The tide draws water down towards the sea bed — no support
3. Wind blowing from the land pulls water out evenly along the whole length of the shore — ← Mova's choice · score 3
4. Water pushed ashore by waves rushes back out to sea through a narrow gap — ✓ the right answer · no support

Why: It took the question to ask who or what does it. It chose option 3 with score 3, the only option with support. Its support: lesson 48, line 12: «The calm eye of a hurricane is followed by strong winds again, so you stay inside.», reached through the remembered sentence the question matched. What matched: it fills the role the question asks for (+4); the same doer «strong winds» (+2). Against it: a different action (counts against) (-3). The right option, 4, found no support in what it remembers. · the question and its options parsed, with trees and pragmatics

Exam question 2 · formal language · wrong ✗

Identify the principal reason for which a short swim parallel to the shore is effective in escaping a rip.

1. Lifeguards pull swimmers who swim sideways — ← Mova's choice · score 5
2. Most rips are narrow — ✓ the right answer · score 4
3. The sea is shallower along the shore — no support
4. Rips weaken when swimmers turn sideways — no support

Why: It took the question to ask which statement is true. It chose option 1 with score 5, against 4 for the next best. Its support: lesson 44, line 5: «A boy on a Queensland beach who fights straight back against a rip gets tired and frightened, while the boy who floats or swims sideways soon escapes it, becau…», reached through the same lesson line as the sentence the question matched. What matched: the same action «swim» (+4); the same property (+2). Against it: a different doer (counts against) (-1). The right option, 2, scored 4. · the question and its options parsed, with trees and pragmatics

Exam question 3 · formal language · right ✓

It being given that thunder is heard nine seconds after the flash, determine the approximate distance of the lightning.

1. About three kilometres — ← Mova's choice · ✓ the right answer · no support
2. Less than one hundred metres — no support
3. About thirty kilometres — no support
4. About nine kilometres — no support

Why: No option found support in what it remembers, so it guessed: it took the first option shown. · the question and its options parsed, with trees and pragmatics

Exam question 4 · formal language · right ✓

Select the response that is consistent with established guidance where thunder is audible.

1. The person is close enough to be struck and should go indoors — ← Mova's choice · ✓ the right answer · no support
2. The person is safe provided it is not raining — no support
3. The person should lie down in an open field — no support
4. The person should shelter beneath the tallest tree that is near at hand — no support

Why: No option found support in what it remembers, so it guessed: it took the first option shown. · the question and its options parsed, with trees and pragmatics

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