The word "knocks" can function in two main ways. As a verb, it is the form used when a single person or thing performs the action of striking a surface to get attention, like in the sentence, "He knocks on the door."
Alternatively, "knocks" can be a plural noun. In this sense, it refers to the actual sounds produced by striking something, for instance, "We heard several loud knocks from downstairs."
It can also describe certain mechanical noises, such as "There were strange knocks coming from the engine."
Understanding these different uses is key to interpreting sentences correctly.
knocks 30秒了解
- strikes a surface to attract attention
- sounds made by striking
- mechanical sounds in an engine
§ What does it mean?
The word 'knocks' is quite versatile in English, functioning both as a verb and a noun. Its core meaning revolves around the idea of impact or striking. Understanding its different uses requires looking at the context in which it appears.
- Verb (Third-person singular present)
- When 'knocks' is used as a verb, it signifies the action of striking a surface, typically with a hand or an object, to draw attention or gain entry. It's often associated with making a sound as a result of this action.
She knocks on the door before entering the office.
- Noun (Plural)
- As a plural noun, 'knocks' refers to the sounds produced by striking a surface. This can be the sound of someone knocking on a door, or it can describe a series of mechanical sounds, especially in the context of an engine or machinery.
The strange knocks coming from the engine indicated a potential problem.
§ When do people use it?
People use 'knocks' in various everyday situations, both literally and sometimes metaphorically. Here are some common scenarios:
- Announcing Presence: The most common use of 'knocks' as a verb is to describe the act of someone hitting a door to indicate their presence.
Every morning, the postman knocks on the door to deliver the mail.
- Sound Description: As a noun, 'knocks' is used to describe specific sounds, particularly those that are percussive or rhythmic.
We heard several loud knocks at the window during the storm.
- Mechanical Issues: In a more specific context, particularly with vehicles or machinery, 'knocks' (as a noun) refers to irregular, often troubling, sounds indicating a malfunction.
The mechanic listened carefully to the engine's knocks to diagnose the problem.
The context usually makes it clear whether 'knocks' is being used as a verb or a noun. When it's a verb, it always accompanies a singular subject in the third person (he, she, it, or a singular noun). When it's a noun, it typically follows a determiner (like 'the', 'some', 'many') or an adjective, and it refers to multiple instances of the sound.
For example, if you say, "He often knocks on the wall," 'knocks' is a verb describing his action. But if you hear, "There were loud knocks from upstairs," 'knocks' is a noun referring to the sounds.
Understanding this distinction is key to correctly interpreting and using the word 'knocks' in various conversations and written texts. Its commonality in everyday language makes it an important word for B1 level English learners to master.
§ Where you actually hear this word
The word "knocks" is quite versatile and can be encountered in various contexts, from casual conversations to more formal settings like news reports. Its dual nature as a verb and a noun allows it to describe both actions and the sounds resulting from those actions. Understanding these different contexts can significantly improve your comprehension and usage of the word.
§ In Everyday Work and Home Life
At work or at home, "knocks" is most commonly heard in its verb form, describing the act of striking a surface to get attention. This can be a simple action with a clear purpose.
- Definition
- When someone 'knocks' on a door, they are usually indicating their presence and desire to enter, or simply trying to get someone's attention from inside.
Every morning, the postman knocks at exactly 9 AM.
It can also describe more insistent or urgent actions, depending on the context.
She knocks on the window repeatedly when she needs help.
As a plural noun, "knocks" can refer to the sounds themselves, often in a less specific context than just a door. For example, in a workplace, you might hear about the 'knocks' a machine is making.
- Definition
- Mechanical 'knocks' are often indicators of a problem or something amiss, requiring attention or repair.
The engineer noticed strange knocks coming from the engine of the old car.
§ In Academic and School Environments
In academic or school settings, the word "knocks" can appear in a few different ways, though perhaps less frequently than in everyday conversation.
- In literature, it might be used to describe character interactions or dramatic tension. For example, a story might describe a character who "knocks nervously on the professor's office door."
- In science classes, particularly physics or engineering, "knocks" could be used to describe the sound waves or vibrations caused by impact, or even the sounds associated with specific mechanical processes.
- It can also appear in more figurative language.
The unexpected delay knocks our schedule off track.
§ In News and Media
When reading or watching the news, "knocks" often takes on a more critical or impactful meaning. It can describe actions with significant consequences or problems that are being highlighted.
- Definition
- In news reporting, 'knocks' can be used figuratively to suggest criticism or a negative impact on something, such as a reputation or an economy.
The recent scandal seriously knocks the public's confidence in the government.
Here, "knocks" implies a significant blow or damage to confidence. Similarly, it can describe a physical action that has news value, such as an athlete's performance.
The boxer knocks out his opponent in the first round.
As a noun, "knocks" in news can refer to ongoing issues or criticisms.
Despite the economic downturn, the company managed to perform well, defying early knocks from critics.
In this context, "knocks" refers to critical remarks or negative assessments. Understanding these nuances is crucial for interpreting news reports accurately.
§ Introduction
The word "knocks" can be a bit tricky for English learners, especially because it functions both as a verb and a plural noun. This section will delve into common errors and misunderstandings associated with "knocks" to help you use it more accurately and confidently. We'll cover everything from subject-verb agreement to distinguishing its different meanings in various contexts.
§ Mistake 1: Incorrect Subject-Verb Agreement
One of the most frequent errors with "knocks" when used as a verb is neglecting subject-verb agreement. Remember, for a singular third-person subject (he, she, it, or a singular noun), the verb in the simple present tense must end in '-s'. Many learners, particularly those whose native languages do not have similar agreement rules, might use the base form 'knock' instead of 'knocks'.
- Incorrect Usage
- She knock on the door.
- Correct Usage
- She knocks on the door.
Every morning, the postman knocks at precisely 8 AM.
§ Mistake 2: Confusing Verb and Noun Forms
The duality of "knocks" as both a verb and a plural noun often leads to confusion. Learners might use the noun form where a verb is required, or vice versa, leading to grammatically incorrect sentences or awkward phrasing. The key is to understand the role the word is playing in the sentence.
- As a verb: It describes an action performed by someone or something.
- As a noun: It refers to the sounds themselves.
- Incorrect Usage
- The door has many knocks.
Here, 'knocks' is intended as the action, but it's used as a noun in a context where the verb 'has' implies a state, not an action being performed by the door. If the intention is to convey the sound, the sentence structure needs to be different.
- Correct Usage (Verb)
- Someone knocks at the door.
He always knocks twice before entering.
- Correct Usage (Noun)
- We heard several loud knocks on the window.
The engine made strange knocks, indicating a mechanical problem.
§ Mistake 3: Misunderstanding Contextual Meanings
"Knocks" can also have different implications depending on the context, beyond just striking a surface for attention. It can refer to mechanical issues in an engine, or even figuratively to criticisms or setbacks. Misinterpreting these nuances can lead to awkward or incorrect usage.
- To strike a surface: The most common meaning.
- Mechanical sound: Often associated with engines or machinery.
- Figurative setbacks/criticisms: Less common for B1 learners, but good to be aware of.
- Example (Mechanical)
- The car engine makes strange knocks when I accelerate.
- Example (Figurative)
- Despite the initial knocks, the company managed to succeed.
§ Mistake 4: Overlooking Phrasal Verbs with "Knock"
The verb "knock" is often used in phrasal verbs, which can have meanings quite different from the base verb. Learners might mistakenly interpret these phrasal verbs literally, missing their idiomatic sense. Common phrasal verbs include "knock out," "knock down," "knock off," and "knock around."
- Knock out: To make someone unconscious; to eliminate from a competition.
- Knock down: To demolish; to reduce a price.
- Knock off: To stop working; to produce quickly and carelessly.
- Knock around: To treat roughly; to wander without a clear purpose.
- Example (Knock out)
- The boxer knocked his opponent out in the first round.
The champion knocks out his opponents with ease.
§ Conclusion
By being mindful of subject-verb agreement, distinguishing between its verb and noun forms, understanding its various contextual meanings, and learning common phrasal verbs, you can significantly reduce errors when using "knocks." Consistent practice and exposure to diverse texts will solidify your understanding and help you use this versatile word accurately.
按水平分级的例句
He knocks on the door every morning.
Él golpea la puerta todas las mañanas.
Simple present tense, 3rd person singular.
The postman knocks loudly.
El cartero golpea fuerte.
Simple present tense, 3rd person singular.
She always knocks before entering.
Ella siempre golpea antes de entrar.
Simple present tense, 3rd person singular.
The car makes strange knocks when it starts.
El coche hace ruidos extraños cuando arranca.
Plural noun, referring to sounds.
I heard three knocks at the window.
Escuché tres golpes en la ventana.
Plural noun, referring to sounds.
My friend often knocks on my window to say hello.
Mi amigo a menudo golpea mi ventana para saludar.
Simple present tense, 3rd person singular.
The mechanic listened to the knocks in the engine.
El mecánico escuchó los golpes en el motor.
Plural noun, referring to mechanical sounds.
He knocks on the table to get attention.
Él golpea la mesa para llamar la atención.
Simple present tense, 3rd person singular.
The persistent knocking on the old oak door echoed through the deserted hallway, sending a shiver down her spine.
The persistent knocking on the old oak door
Here, 'knocking' is used as a gerund, acting as a noun.
He frequently knocks on his neighbor's door to borrow sugar, a ritual that has become quite familiar in their quiet suburban street.
He frequently knocks on his neighbor's door
Here, 'knocks' is the third-person singular present form of the verb.
The engine emitted a series of unsettling knocks, suggesting a serious mechanical issue that required immediate attention from a skilled mechanic.
The engine emitted a series of unsettling knocks
Here, 'knocks' is a plural noun referring to sounds.
She often knocks on her desk rhythmically when deep in thought, a habit that sometimes distracts her colleagues during intense brainstorming sessions.
She often knocks on her desk rhythmically
Here, 'knocks' is the third-person singular present form of the verb.
Despite repeated knocks, there was no answer from within the seemingly abandoned house, leaving the delivery driver puzzled and frustrated.
Despite repeated knocks, there was no answer
Here, 'knocks' is a plural noun referring to sounds.
The subtle knocks from the antique clock, barely audible above the general hum of the household, marked the passage of time with an old-world charm.
The subtle knocks from the antique clock
Here, 'knocks' is a plural noun referring to sounds.
He gently knocks on the window pane to alert his friend without disturbing the sleeping baby, a considerate gesture appreciated by the tired parents.
He gently knocks on the window pane
Here, 'knocks' is the third-person singular present form of the verb.
The old furnace makes strange knocks and whirs, particularly during the colder months, a clear indication that it's nearing the end of its operational life.
The old furnace makes strange knocks and whirs
Here, 'knocks' is a plural noun referring to sounds.
常见搭配
常用短语
He knocks on the window to get her attention.
Él golpea la ventana para llamar su atención.
The car engine knocks when it's cold.
El motor del coche golpetea cuando hace frío.
She knocks on the door before entering.
Ella golpea la puerta antes de entrar.
Every time opportunity knocks, he answers.
Cada vez que la oportunidad llama, él responde.
The strong wind knocks over the small trees.
El fuerte viento derriba los árboles pequeños.
He always knocks on wood for good luck.
Él siempre toca madera para la buena suerte.
A sudden noise knocks her off balance.
Un ruido repentino la desequilibra.
The boxer knocks out his opponent in the first round.
El boxeador noquea a su oponente en el primer asalto.
The old clock knocks every hour.
El reloj viejo da las campanadas cada hora.
She knocks back a shot of espresso every morning.
Ella se toma un trago de espresso cada mañana.
习语与表达
"knocks your socks off"
To impress someone greatly or to be extremely exciting or surprising.
The special effects in the movie will really knock your socks off.
informal"knock it off"
Stop doing something, especially something annoying.
Hey, you two, knock it off with all that noise!
informal"knock on wood"
A superstitious phrase said to prevent bad luck after mentioning something good or to prevent something bad from happening.
I haven't had a cold all year, knock on wood.
neutral"knock someone's lights out"
To punch someone until they are unconscious.
If he keeps talking like that, someone's going to knock his lights out.
informal"knock something out of the park"
To perform exceptionally well or to do something very successfully.
Her presentation really knocked it out of the park; everyone was impressed.
informal"knock on the door of success"
To be very close to achieving success.
After years of hard work, they are finally knocking on the door of success.
neutral"knock someone down a peg or two"
To humble someone who is acting arrogant or overconfident.
His recent failure really knocked him down a peg or two.
informal"knock on heaven's door"
To be very near death.
After the accident, he was knocking on heaven's door for a few days.
neutral"knock something together"
To quickly make or assemble something, often in a makeshift way.
I can probably knock together a quick meal with what's in the fridge.
informal"knock about/around"
To travel or spend time in different places without a specific plan.
After graduation, I spent a year knocking about Europe.
informal如何使用
Usage Notes:
Verb Form: When used as a verb, "knocks" refers to the action of striking something, typically a door, to get attention. It is the third-person singular present tense, meaning it's used with subjects like "he," "she," "it," or a singular noun.
- Example: She knocks on the door loudly.
- Example: The wind knocks against the window.
Noun Form: As a plural noun, "knocks" refers to the sounds produced by striking. It can also describe problematic mechanical sounds in an engine.
- Example: We heard a series of loud knocks from downstairs.
- Example: The mechanic said the engine had several worrying knocks.
Phrasal Verbs: "Knocks" is part of several common phrasal verbs, such as "knock out" (to make someone unconscious or eliminate from a competition), "knock down" (to demolish or reduce a price), and "knock off" (to finish work or reduce a price).
- Example: The boxer knocks out his opponent.
- Example: They plan to knock down the old building.
Common Mistakes:
1. Confusing with Plural Noun vs. Verb Conjugation:
- Mistake: Using "knocks" as a plural noun when a singular noun is needed, or vice-versa.
- Correction: Remember that as a noun, "knocks" is already plural. If you mean a single sound, use "knock." As a verb, ensure subject-verb agreement (e.g., "he knocks," not "he knock").
- Example of Mistake: There was a loud knocks at the door. (Should be: There was a loud knock at the door.)
2. Incorrect Tense Usage:
- Mistake: Using "knocks" for past or future actions without auxiliary verbs.
- Correction: "Knocks" is present simple. For past actions, use "knocked." For future, use "will knock."
- Example of Mistake: Yesterday, he knocks on the door. (Should be: Yesterday, he knocked on the door.)
3. Misunderstanding Phrasal Verbs:
- Mistake: Not knowing the specific meaning of phrasal verbs involving "knock."
- Correction: Learn the common phrasal verbs and their distinct meanings.
- Example of Mistake: He knocks off the car accident. (Incorrect use; likely meant to describe an accident, not finishing work or reducing price related to a car accident).
4. Overusing "Knocks" for General Impact:
- Mistake: Using "knocks" for any impact, even when a more specific verb would be better.
- Correction: While "knock" can mean to strike, consider more precise verbs like "hits," "taps," "bumps," or "collides" depending on the context.
- Example of Mistake: The car knocks into the wall. (While understandable, "hits" or "crashes into" might be more common or descriptive).
常见问题
10 个问题The word 'knocks' is commonly used when someone strikes a door to get attention, or when referring to the sounds of an engine that isn't running smoothly. For example, 'He knocks on the door,' or 'The engine knocks when it's cold.'
Yes, 'knocks' can be both a noun and a verb. As a verb, it's the third-person singular present form of 'knock' (e.g., 'She knocks loudly'). As a noun, it's the plural form of 'knock' (e.g., 'I heard several knocks at the door').
The main difference is grammatical. 'Knock' is the base form of the verb, used with 'I, you, we, they' (e.g., 'I knock'). 'Knocks' is the third-person singular present form, used with 'he, she, it' (e.g., 'He knocks'). 'Knocks' can also be the plural noun, while 'knock' is the singular noun.
Yes, there are a few! For instance, 'opportunity knocks' means a chance has arisen. 'Knocks your socks off' means something is very impressive. 'Knocks the wind out of you' means to surprise or shock someone.
The 'k' at the beginning of 'knocks' is silent, so it's pronounced like 'nox' (rhymes with 'fox').
Absolutely. When talking about an engine, 'knocks' often refers to a malfunctioning sound, indicating a problem. For example, 'The mechanic said the engine has a bad knock.'
It's generally a neutral word, neither particularly formal nor informal. It's commonly used in everyday conversation and writing.
When 'knocks' means to strike, synonyms include hits, taps, or raps, depending on the intensity and purpose of the striking.
Yes, it can. For example, 'He knocks the competition out of the park' means he performs exceptionally well. Or, 'It knocks me out' can mean it deeply impresses or exhausts me.
In an engine context, 'knocks' refers to a sharp, metallic sound caused by abnormal combustion. It often indicates a problem that needs attention, such as incorrect fuel or engine timing issues.
自我测试 114 个问题
The boy ______ on the door.
We use 'knocks' for the third-person singular present tense.
Listen! I hear some ______ at the door.
'Knocks' as a plural noun refers to the sounds made.
My car makes strange ______ when I drive.
In this context, 'knocks' refers to mechanical sounds in the engine.
She knocks on the window to say hello.
'Knocks' is used here as the third-person singular present verb, meaning to strike a surface.
The plural of 'knock' as a sound is 'knocks'.
When referring to multiple sounds made by striking, 'knocks' is the correct plural noun.
He knock on the door loudly.
For 'he' (third-person singular), we need to use 'knocks', not 'knock'.
Listen for the action word.
Listen for the plural noun.
Listen for the sound an engine might make.
Read this aloud:
He knocks.
Focus: knocks
你说的：
Speech recognition is not supported in your browser. Try Chrome or Edge.
Read this aloud:
She hears knocks.
Focus: knocks
你说的：
Speech recognition is not supported in your browser. Try Chrome or Edge.
Read this aloud:
The door knocks.
Focus: knocks
你说的：
Speech recognition is not supported in your browser. Try Chrome or Edge.
This sentence describes someone knocking on a door.
This sentence describes the sound a car makes.
This sentence describes the action of knocking before entering.
He ___ on the door before entering the room.
The sentence describes a habitual action in the present tense, so the third-person singular form 'knocks' is appropriate for 'he'.
The car engine made strange ___ noises.
'Knocks' here is used as a plural noun to describe the sounds the engine made.
She always ___ loudly when she wants attention.
Similar to the first example, this is a habitual action in the present tense for 'she', requiring 'knocks'.
Did you hear those ___ at the window last night?
Here, 'knocks' refers to multiple sounds made at the window, acting as a plural noun.
Every time he visits, he ___ on the door three times.
This describes a repetitive action performed by 'he', so 'knocks' is the correct present tense form.
The old clock often makes little ___ before it chimes.
The sentence refers to multiple small sounds made by the clock, hence the plural noun 'knocks'.
The postman always _____ on the door in the morning.
The subject 'postman' is third person singular, so the verb takes an '-s' in the simple present tense.
I heard strange _____ from the old house.
'Knocks' is used here as a plural noun, referring to the sounds made.
When the car started making strange _____, I took it to the mechanic.
'Knocks' as a plural noun can refer to mechanical sounds in an engine.
The word 'knocks' can be used to describe sounds from an engine.
Yes, 'knocks' can refer to mechanical sounds in an engine.
If you hear 'knocks' at the door, it means someone is leaving.
Hearing 'knocks' at the door usually means someone is trying to get your attention or enter, not leaving.
The sentence 'She knocks on the window' means she is striking the window to attract attention.
To 'knock' means to strike a surface to attract attention, and 'knocks' is the third-person singular form of this verb.
Write a short sentence using 'knocks' as a verb. For example, 'He knocks on the door.'
Well written! Good try! Check the sample answer below.
Sample answer
She knocks on the window to get her friend's attention.
Write a sentence describing a sound an engine makes using 'knocks' as a noun. For example, 'The engine makes strange knocks.'
Well written! Good try! Check the sample answer below.
Sample answer
I heard loud knocks from the car engine.
Write a short sentence about someone knocking on a door using 'knocks'.
Well written! Good try! Check the sample answer below.
Sample answer
The postman knocks on the door every morning.
What does the cat do when she sees a bird?
Read this passage:
My cat often sits by the window. When she sees a bird, she excitedly wags her tail. Sometimes, she even makes soft little knocks against the glass, wanting to play with the bird outside.
What does the cat do when she sees a bird?
The passage states, 'When she sees a bird, she excitedly wags her tail. Sometimes, she even makes soft little knocks against the glass.'
The passage states, 'When she sees a bird, she excitedly wags her tail. Sometimes, she even makes soft little knocks against the glass.'
What does Tom hear when he tries to start his car?
Read this passage:
Tom is trying to fix his old car. He thinks there is a problem with the engine. He hears strange knocks when he tries to start it. He hopes he can fix it soon.
What does Tom hear when he tries to start his car?
The passage says, 'He hears strange knocks when he tries to start it.'
The passage says, 'He hears strange knocks when he tries to start it.'
What does the neighbor do every morning?
Read this passage:
Every morning, my neighbor knocks on my door to say hello. It's a nice way to start the day. Sometimes, he brings me fresh bread.
What does the neighbor do every morning?
The passage states, 'Every morning, my neighbor knocks on my door to say hello.'
The passage states, 'Every morning, my neighbor knocks on my door to say hello.'
This sentence describes someone knocking on a door.
This sentence describes unusual sounds coming from a car, using 'knocks' as a plural noun.
This sentence indicates a habitual action of knocking before entering.
Choose the correct sentence: When someone ___ on the door, it means they want to come in.
The sentence requires the third-person singular present form of the verb, which is 'knocks'.
Which sentence uses 'knocks' as a noun correctly?
In this sentence, 'knocks' refers to the sounds made by the engine, functioning as a plural noun.
The unexpected ___ at the late hour made everyone jump.
Here, 'knocks' is used as a plural noun, referring to multiple sounds.
The sentence 'He knocks on the door and waits' uses 'knocks' as a verb.
In this sentence, 'knocks' is the action performed by 'he', making it a verb.
In the phrase 'the engine makes a lot of knocks', 'knocks' is a verb.
Here, 'knocks' refers to the sounds the engine makes, acting as a plural noun.
If someone 'knocks' on your door, they are probably trying to enter.
To knock on a door is a common way to signal one's presence and intention to enter.
Listen for the verb 'knocks'.
Listen for the plural noun 'knocks'.
Focus on the sound of the word 'knocks'.
Read this aloud:
He always knocks before he comes in.
Focus: /nɒks/
你说的：
Speech recognition is not supported in your browser. Try Chrome or Edge.
Read this aloud:
I heard three loud knocks on the window.
Focus: /nɒks/
你说的：
Speech recognition is not supported in your browser. Try Chrome or Edge.
Read this aloud:
The sound of knocks can be quite startling in the quiet.
Focus: /nɒks/
你说的：
Speech recognition is not supported in your browser. Try Chrome or Edge.
Imagine you are waiting outside a friend's house. Describe what happens when you try to get their attention. Use the word 'knocks' at least once in its verb form.
Well written! Good try! Check the sample answer below.
Sample answer
I arrived at Sarah's house and walked up to her front door. I gently knocks twice, hoping she would hear me. After a short wait, there was no answer, so I knocked a bit louder the second time. Still, nothing. I wondered if she was home.
Write two sentences. In the first sentence, use 'knocks' as a verb (present simple, third person singular). In the second sentence, use 'knocks' as a plural noun.
Well written! Good try! Check the sample answer below.
Sample answer
He often knocks on the door before entering. The old engine makes strange knocks when it starts.
Complete the following sentence using your own words, ensuring 'knocks' is used correctly as a verb: Every time the wind blows strongly, the old gate ______.
Well written! Good try! Check the sample answer below.
Sample answer
Every time the wind blows strongly, the old gate knocks against the fence loudly.
What is the main problem Sarah is facing with her car?
Read this passage:
Sarah was trying to fix her car engine, but it kept making unusual noises. Every time she turned the key, she heard a series of loud knocks. She worried that something was seriously wrong with the engine and decided to take it to a mechanic.
What is the main problem Sarah is facing with her car?
The passage clearly states, 'Every time she turned the key, she heard a series of loud knocks.'
The passage clearly states, 'Every time she turned the key, she heard a series of loud knocks.'
Why does David knock on his neighbor's door?
Read this passage:
David always knocks on his neighbor's door before going inside, even if it's open. He believes it's a polite way to announce his presence. His neighbor appreciates this gesture and always invites him in with a smile.
Why does David knock on his neighbor's door?
The passage states, 'He believes it's a polite way to announce his presence.'
The passage states, 'He believes it's a polite way to announce his presence.'
What kind of knocks does the old clock make?
Read this passage:
The old clock in the hall often makes soft, rhythmic knocks as its pendulum swings. These gentle sounds are part of the house's comforting atmosphere. Sometimes, visitors don't even notice the knocks until someone points them out.
What kind of knocks does the old clock make?
The passage describes the clock's sounds as 'soft, rhythmic knocks.'
The passage describes the clock's sounds as 'soft, rhythmic knocks.'
Listen for the action he performs at the door.
Pay attention to the sounds the car makes.
What does she accidentally hit?
Read this aloud:
The detective hears faint knocks from inside the abandoned house.
Focus: knocks
你说的：
Speech recognition is not supported in your browser. Try Chrome or Edge.
Read this aloud:
He knocks politely before entering any office.
Focus: politely
你说的：
Speech recognition is not supported in your browser. Try Chrome or Edge.
Read this aloud:
The engine knocks indicate a serious mechanical issue.
Focus: mechanical
你说的：
Speech recognition is not supported in your browser. Try Chrome or Edge.
This sentence describes a common action using the verb 'knocks' in its third-person singular present form, meaning to strike a surface to attract attention.
Here, 'knocks' is used as a plural noun, referring to the mechanical sounds made by the engine.
This sentence uses 'knocks' as a verb to describe a repeated action of striking a surface politely.
The persistent hum of the old refrigerator often ___ against the quiet of the night, a subtle yet constant disruption.
In this context, 'knocks' refers to a continuous, repetitive, and somewhat irritating sound, often mechanical, which aligns with the description of a refrigerator's hum. The other options don't convey the same sense of a sustained, impactful sound.
Despite numerous attempts to fix the engine, a peculiar rhythmic ___ still emanates from under the hood, signaling an underlying mechanical issue.
'Knocks' is used here to describe a distinct, percussive sound often associated with a malfunction in an engine. The other options describe different types of mechanical sounds that don't fit the context of an engine problem as well.
The sculptor meticulously ___ at the stone, slowly revealing the intricate contours of the figure within.
Here, 'knocks' is used to describe the act of striking something, often repeatedly, with a moderate force, which is appropriate for a sculptor's work. 'Strikes' is too general, 'taps' is too light, and 'pounds' is too forceful.
Every time the wind howls, it ___ against the loose shutter, creating an unnerving clatter that echoes through the house.
'Knocks' accurately describes the forceful impact of the wind repeatedly striking the shutter, causing a rattling sound. The other options don't convey the same sense of impact.
The old clock in the hallway ___ out the hours with a deep, resonant chime that permeates the entire house.
While 'strikes' or 'tolls' could also be used, 'knocks' emphasizes the percussive action of the clock mechanism that produces the chime, fitting the description of a deep, resonant sound. It also can be used to describe the sound a clock makes.
During the intense interrogation, the detective's relentless questions felt like a series of psychological ___ against the suspect's composure.
In this figurative sense, 'knocks' implies a series of repeated, forceful, and potentially unsettling impacts on someone's mental state or resolve, which is appropriate for an interrogation. 'Probes' is too gentle, 'jabs' is too aggressive, and 'pressures' is too broad.
Which sentence uses 'knocks' correctly as a verb indicating a sudden impact?
In this sentence, 'knocks' is used as a third-person singular present tense verb, referring to the action of the rain hitting the windowpane, which aligns with the definition of striking a surface.
Choose the sentence where 'knocks' refers to distinct mechanical sounds.
Here, 'knocks' is used as a plural noun describing mechanical sounds within the engine, fitting the provided definition.
In which sentence does 'knocks' function as a plural noun denoting sounds made to attract attention?
In this context, 'knocks' refers to multiple sounds made to attract attention, used as a plural noun, which matches the definition.
The sentence 'The strong wind knocks down branches from the trees' uses 'knocks' as a plural noun.
In the sentence, 'knocks' is the third-person singular present form of the verb 'knock,' meaning to strike or cause to fall, not a plural noun.
If an engine has 'knocks', it means it is functioning perfectly without any unusual sounds.
The definition states that 'knocks' can refer to 'mechanical sounds in an engine,' which usually implies an issue or an unusual sound, not perfect functioning.
The phrase 'She heard several knocks at the door' implies that someone struck the door multiple times to attract attention.
As per the definition, 'knocks' as a plural noun can refer to 'the sounds made by such striking,' meaning to strike a surface to attract attention. Therefore, several knocks at the door would indicate multiple strikes.
Listen for the sound an engine makes when it's malfunctioning.
Pay attention to the sound of someone knocking on a door.
Consider the sounds old plumbing might produce.
Read this aloud:
He knocks back a drink as if he hasn't had one in ages, much to the amusement of his friends.
Focus: knocks back
你说的：
Speech recognition is not supported in your browser. Try Chrome or Edge.
Read this aloud:
Despite repeated warnings, she habitually knocks against the fragile antique vases, risking breakage.
Focus: knocks against
你说的：
Speech recognition is not supported in your browser. Try Chrome or Edge.
Read this aloud:
The relentless wind knocks down trees in its path, leaving a trail of destruction in its wake.
Focus: knocks down
你说的：
Speech recognition is not supported in your browser. Try Chrome or Edge.
The incessant chatter from next door often ____________ on his peace and quiet, making concentration an arduous task.
'Intrudes' best fits the context of unwanted disturbance on peace and quiet, implying a forceful and unwelcome entry, whereas 'knocks' is too literal for the figurative sense.
Despite the sophisticated engine design, a faint, rhythmic ____________ emanating from the manifold suggested a minor but persistent mechanical anomaly.
In this context, 'knocks' refers to a specific type of mechanical sound, often indicative of an issue within an engine, which aligns with 'mechanical anomaly'. The other options are more general sounds.
His philosophical treatise meticulously ____________ down the prevailing empiricist arguments, revealing their inherent logical inconsistencies.
'Dismantles' accurately conveys the idea of systematically breaking down arguments, which is a stronger and more precise verb than 'knocks' in this academic context.
The subtle ____________ of opportunity often goes unnoticed by those who are not perpetually attuned to the shifting currents of the market.
Figuratively, 'knocks' can refer to a discreet but present indication or opportunity, fitting the nuance of 'subtle opportunity'. The other options are less idiomatic in this specific context.
Amidst the tumultuous political climate, every dissenting voice that ____________ against the status quo is met with formidable opposition.
Here, 'knocks against' is used metaphorically to mean to oppose or challenge, aligning with the idea of dissenting voices against the status quo. It carries a sense of repeated or persistent challenge.
The abrupt ____________ on the door startled her from her deep contemplation, disrupting the fragile equilibrium of her thoughts.
'Knocks' is the most common and appropriate plural noun to describe multiple instances of striking a door to attract attention, fitting the context of startling someone from contemplation.
The incessant ___ from the old engine signaled a deeper mechanical issue that required immediate attention.
In this context, 'knocks' refers to the plural noun indicating multiple sounds made by the engine, fitting the description of 'incessant'.
Despite the persistent ___ on the door, no one answered, leading her to believe the house was deserted.
Here, 'knocks' functions as a plural noun, referring to the repeated sounds made by striking the door. 'Knocking' would also be grammatically correct but 'knocks' emphasizes the distinct, multiple instances of the sound.
When the protagonist unexpectedly ___ on the villain's door, a hush fell over the tense scene.
The sentence is in the present tense, and 'protagonist' is a third-person singular subject, requiring the third-person singular present form of the verb, which is 'knocks'.
The word 'knocks' can be used to describe repetitive sounds emanating from a malfunctioning machine.
The definition explicitly states that 'knocks' can refer to 'mechanical sounds in an engine', which aligns with repetitive sounds from a malfunctioning machine.
In the sentence 'He knocks on the door every morning before work,' 'knocks' is a plural noun.
In this sentence, 'knocks' is the third-person singular present form of the verb 'to knock', indicating an action performed by 'he'.
The CEFR level B1 suggests that a learner would have a nuanced understanding of 'knocks' as both a plural noun and a verb in various complex contexts.
CEFR B1 indicates an intermediate level of English proficiency, where learners can understand main points and produce simple connected text. A nuanced understanding in complex contexts typically corresponds to higher CEFR levels like C1 or C2.
Focus on the nuance of 'knocks' referring to mechanical sounds.
Distinguish 'knocks' as sounds made by striking a surface.
Pay attention to 'knocks' as a verb implying impact or dislodgement.
Read this aloud:
Can you elaborate on the subtle differences in connotation between 'knocks' as a persistent mechanical sound and 'knocks' as a deliberate attempt to gain entry?
Focus: knocks /nɒks/
你说的：
Speech recognition is not supported in your browser. Try Chrome or Edge.
Read this aloud:
Describe a scenario where a politician's misstep inadvertently knocks their carefully constructed public image off balance.
Focus: knocks /nɒks/
你说的：
Speech recognition is not supported in your browser. Try Chrome or Edge.
Read this aloud:
Reflect on how the metaphorical 'knocks' of life, such as setbacks or challenges, can ultimately contribute to an individual's resilience and character development.
Focus: knocks /nɒks/
你说的：
Speech recognition is not supported in your browser. Try Chrome or Edge.
This sentence describes a series of sounds ('knocks') that eventually woke someone up. The word 'persistent' modifies 'knocks', indicating their continuous nature.
Here, 'knocks' refers to mechanical sounds from an engine. The sentence structure places 'faint' as an adjective for 'knocks' and 'impending' for 'mechanical failure'.
'Knocks' is used here as a verb, indicating the action of striking. The sentence structure highlights a conditional relationship between the action and the audience's reaction.
/ 114 correct
Perfect score!
Summary
Knocks can be a verb for striking a surface to get attention or a noun for the sounds made by striking or engine problems.
- strikes a surface to attract attention
- sounds made by striking
- mechanical sounds in an engine
