---
title: Why are worn, smooth tyres dangerous on a rainy day? — Pushes, pulls, friction and wheels · tree and pragmatics
description: Why are worn, smooth tyres dangerous on a rainy day? Test 8 · ★ of lesson 85 «Pushes, pulls, friction and wheels» of the world course of Mova's primary school, with the dependency tree and pragmatics of the question and of each option; Mova's choice was wrong.
---

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# Test 8 · ★ · Pushes, pulls, friction and wheels

<!-- .ven lang=en -->
Why are worn, smooth tyres dangerous on a rainy day?

<!-- .vintro -->
**Mova's choice:** option 1 · **The right answer:** option 3 · wrong ✗ · **What happens:** wear

<!-- .vabout -->
This is test 8 · ★ of lesson 85 «Pushes, pulls, friction and wheels» of the world course of Mova's primary school. The page gives the question's syntax tree — a dependency tree in the style of Universal Dependencies — and its pragmatics clause by clause, then the 4 options as the student saw them, each with its tree and pragmatics. Every text is parsed by Mova itself. How the student answered it, with the score of every option and why: [the test at school](https://md.mova.elamur.ai/free/en/school-run/world/85-pushes-pulls-friction-wheels/#t8).

## The question {#question}

```conllu
# sent_id = question:world:85-pushes-pulls-friction-wheels:t8:1
# text = Why are worn, smooth tyres dangerous on a rainy day?
1	Why	why	ADV	WRB	PronType=Int	3	advmod	_	_
2	are	be	AUX	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	3	aux:pass	_	_
3	worn	wear	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	0	root	_	SpaceAfter=No
4	,	,	PUNCT	,	_	6	punct	_	_
5	smooth	smooth	ADJ	JJ	Degree=Pos	6	amod	_	_
6	tyres	tyre	NOUN	NNS	Number=Plur	7	obl:unmarked	_	_
7	dangerous	dangerous	ADJ	JJ	Degree=Pos	3	xcomp	_	_
8	on	on	ADP	IN	_	11	case	_	_
9	a	a	DET	DT	Definite=Ind|PronType=Art	11	det	_	_
10	rainy	rainy	ADJ	JJ	Degree=Pos	11	amod	_	_
11	day	day	NOUN	NN	Number=Sing	3	obl	_	SpaceAfter=No
12	?	?	PUNCT	.	_	3	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **wear** | present · passive |  |  |  |  | day | dangerous *property* | vn wipe\_manner-10.4.1-1 «NP V PP-Conative» |

<!-- .note -->
One row per clause the reader finds. «not said here»: a role filled from the clause above. «roles by»: a VerbNet class and frame when one fits the verb, else the reader's rules on the tree.

## The options {#options}

### Option 1 · ← Mova's choice {#o1}

<!-- .ven lang=en -->
They make the brakes work too hard

```conllu
# sent_id = question:world:85-pushes-pulls-friction-wheels:t8:o1:1
# text = They make the brakes work too hard
1	They	they	PRON	PRP	Case=Nom|Number=Plur|Person=3|PronType=Prs	2	nsubj	_	_
2	make	make	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
3	the	the	DET	DT	Definite=Def|PronType=Art	4	det	_	_
4	brakes	brake	NOUN	NNS	Number=Plur	5	nsubj	_	_
5	work	work	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	2	ccomp	_	_
6	too	too	ADV	RB	_	7	advmod	_	_
7	hard	hard	ADJ	JJ	Degree=Pos	5	advcl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **make** | present | They |  |  |  |  |  | tree rules |
| 2 | **work** | present | the brakes |  |  |  |  |  | vn employment-95.3 «NP V»: agent=Agent |

### Option 2 {#o2}

<!-- .ven lang=en -->
They are much heavier than new tyres

```conllu
# sent_id = question:world:85-pushes-pulls-friction-wheels:t8:o2:1
# text = They are much heavier than new tyres
1	They	they	PRON	PRP	Case=Nom|Number=Plur|Person=3|PronType=Prs	4	nsubj	_	_
2	are	be	AUX	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	4	cop	_	_
3	much	much	ADV	RB	_	4	advmod	_	_
4	heavier	heavy	ADJ	JJR	Degree=Cmp	0	root	_	_
5	than	than	ADP	IN	_	7	case	_	_
6	new	new	ADJ	JJ	Degree=Pos	7	amod	_	_
7	tyres	tyre	NOUN	NNS	Number=Plur	4	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **is** | present | They |  |  |  |  | than new tyres; heavy *property* | tree rules |

### Option 3 · ✓ the right answer {#o3}

<!-- .ven lang=en -->
They cannot push the water away to grip

```conllu
# sent_id = question:world:85-pushes-pulls-friction-wheels:t8:o3:1
# text = They cannot push the water away to grip
1	They	they	PRON	PRP	Case=Nom|Number=Plur|Person=3|PronType=Prs	4	nsubj	_	_
2	can	can	AUX	MD	VerbForm=Fin	4	aux	_	SpaceAfter=No
3	not	not	PART	RB	Polarity=Neg	4	advmod	_	_
4	push	push	VERB	VB	VerbForm=Inf	0	root	_	_
5	the	the	DET	DT	Definite=Def|PronType=Art	6	det	_	_
6	water	water	NOUN	NN	Number=Sing	4	obj	_	_
7	away	away	ADV	RB	_	4	advmod	_	_
8	to	to	PART	TO	_	9	mark	_	_
9	grip	grip	VERB	VB	VerbForm=Inf	4	advcl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **not** **push away** | can | They | the water |  |  |  | away *property* | vn carry-11.4-1-1 «NP V NP»: agent=Agent water=Theme |
| 2 | **grip** | to-infinitive | They *not said here* |  |  |  |  |  | vn touch-20-1 «NP V NP»: agent=Agent |

### Option 4 {#o4}

<!-- .ven lang=en -->
They make the car go too slowly

```conllu
# sent_id = question:world:85-pushes-pulls-friction-wheels:t8:o4:1
# text = They make the car go too slowly
1	They	they	PRON	PRP	Case=Nom|Number=Plur|Person=3|PronType=Prs	2	nsubj	_	_
2	make	make	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
3	the	the	DET	DT	Definite=Def|PronType=Art	4	det	_	_
4	car	car	NOUN	NN	Number=Sing	2	obj	_	_
5	go	go	VERB	VB	VerbForm=Inf	2	xcomp	_	_
6	too	too	ADV	RB	_	7	advmod	_	_
7	slowly	slowly	ADV	RB	_	5	advmod	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **make** | present | They | the car |  |  |  |  | tree rules |
| 2 | **go** | infinitive | the car *not said here* |  |  |  |  | slowly *property* | vn disappearance-48.2-1 «NP V»: agent=Theme |

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**Text:** the tests of Mova's primary school, written for Mova (`world/data/school/`), as the course runner gave them to the student. **Trees:** Mova's own parse — the `en` model on the CPU, when the site is built — not checked by a teacher; they may be wrong. **Frames:** Mova's frames reader (`prag`), each text read on its own. Elamur Cosmic License.

<!-- /div -->

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- ← previous: [Pushes, pulls, friction and wheels, test 7](https://md.mova.elamur.ai/free/en/corpora/questions/world/85-pushes-pulls-friction-wheels/t7/)
- next →: [Pushes, pulls, friction and wheels, test 9](https://md.mova.elamur.ai/free/en/corpora/questions/world/85-pushes-pulls-friction-wheels/t9/)
- ↑ back to [Pushes, pulls, friction and wheels](https://md.mova.elamur.ai/free/en/corpora/questions/world/85-pushes-pulls-friction-wheels/)