Language Acquisition · Topic 4.1
Advanced Comprehension & Production
At Phase 4–5, you move beyond accuracy to sophistication. Your writing and speaking must demonstrate varied vocabulary, complex grammar, register awareness, and cohesive argumentation.
What You'll Learn
- Identify and apply appropriate register (formal, informal, semi-formal) for different audiences and purposes
- Produce extended texts in multiple text types: persuasive articles, formal letters, reports, and speeches
- Build cohesion through transition words, pronoun reference, and lexical chains
- Use complex grammatical structures accurately: conditionals, passive voice, reported speech, relative clauses
- Demonstrate nuanced vocabulary with synonyms, idiomatic language, and subject-specific terminology
- Comprehend complex authentic texts, identifying bias, tone, and implied meaning
IB Assessment Focus
Criterion A (Comprehending Spoken/Visual): Understand nuanced spoken texts; interpret implicit messages and speaker attitude.
Criterion B (Comprehending Written): Analyse complex written texts; evaluate bias and authorial purpose.
Criterion C (Communicating): Speak and interact with fluency, accuracy, and appropriate register.
Criterion D (Using Language): Write with varied vocabulary and complex grammatical structures; errors are minor and infrequent.
Key Vocabulary
| Term | Definition |
|---|---|
| Nuanced | Subtle distinctions in meaning, tone, or emphasis |
| Register | The level of formality and social appropriateness of language |
| Idiomatic language | Expressions whose meaning differs from the literal word meaning (“kick the bucket”) |
| Cohesion | Smooth connection between sentences and paragraphs (pronouns, connectives, repetition) |
| Coherence | Logical flow of ideas throughout a text |
| Justify | Support a view with reasons and evidence |
| Bias | A tendency to favour one perspective over another, often unconsciously |
Critical Rule: At Phase 4–5, vocabulary range is critical. Avoid repeating the same words — use synonyms, paraphrase, and vary sentence structure. The Criterion D descriptor at Phase 5–6 specifically rewards “varied vocabulary and complex grammatical structures.”
Language Acquisition · Topic 4.1
Register & Audience
Register is the level of formality in language. At Phase 4–5, you must consciously match your register to the purpose, audience, and text type.
Register Levels
| Register | Features | Used In |
|---|---|---|
| Formal | No contractions, no slang, complex sentences, passive voice, impersonal tone | Reports, formal letters, academic essays, official speeches |
| Semi-formal | Mostly formal with some personal address, moderate complexity | Magazine articles, school presentations, professional emails |
| Informal | Contractions, colloquial language, simple structures, personal tone | Diary entries, personal letters, blog posts, casual conversation |
Register in Practice
Formal:
“It is recommended that the school council consider implementing a recycling programme to address the growing concern regarding environmental sustainability.”
Semi-formal:“The school council should think about starting a recycling programme. This would help us become more environmentally responsible.”
Informal:“We really need to get recycling sorted out at school — it's honestly embarrassing that we don't have it yet.”
Audience Awareness
- Who is reading/listening? Peers, teachers, community members, government officials?
- What do they already know? Adjust the level of explanation accordingly
- What is their likely attitude? Sympathetic, neutral, or hostile to your argument?
- What do you want them to do/think/feel? This determines your persuasive strategy
Common Mistake: Mixing registers within a single text. If you begin a formal report and then write “this is totally unfair,” you have broken register. Consistency is essential for Criterion D marks.
Language Acquisition · Topic 4.1
Text Types & Conventions
Each text type has specific conventions that you must follow. Demonstrating awareness of these conventions shows communicative competence.
Key Text Types at Phase 4–5
| Text Type | Key Conventions | Register |
|---|---|---|
| Persuasive article | Headline, byline, introduction with hook, rhetorical questions, counter-argument, call to action | Semi-formal to formal |
| Formal letter | Sender/recipient address, date, salutation (Dear Sir/Madam), formal closing (Yours faithfully/sincerely) | Formal |
| Report | Title, sections with subheadings, objective tone, data/evidence, recommendations | Formal |
| Speech | Direct address (“Ladies and gentlemen”), rhetorical devices, personal anecdotes, call to action | Semi-formal |
| Blog post | Engaging title, personal voice, images/media references, direct reader address | Informal to semi-formal |
Persuasive Techniques
- Rhetorical question: “Can we really afford to ignore this crisis?” — engages the reader and implies the answer
- Rule of three: “This policy is unfair, unworkable, and unnecessary” — creates rhythm and emphasis
- Emotive language: Words chosen to provoke an emotional response — “devastating,” “heartbreaking”
- Statistics and evidence: “According to the WHO, 2.2 billion people lack clean water” — adds credibility
- Counter-argument: Acknowledging and refuting opposing views demonstrates balance and sophistication
- Direct address: “You may think this doesn't affect you, but...” — involves the reader personally
Critical Rule: In the exam, if the task says “Write a formal letter,” you MUST include all letter conventions (addresses, date, salutation, closing). Missing conventions loses marks on Criterion C (Communicating) regardless of content quality.
Language Acquisition · Topic 4.1
Cohesion & Coherence
Cohesion refers to the grammatical and lexical links between sentences. Coherence refers to the logical flow of ideas. Both are essential for high marks on Criterion D.
Cohesive Devices
| Device | Examples | Function |
|---|---|---|
| Transition words | However, therefore, furthermore, in contrast, consequently | Signal the logical relationship between ideas |
| Pronoun reference | “The policy was introduced. It aimed to reduce pollution.” | Avoids repetition; links sentences to previous content |
| Lexical chain | environment → ecology → ecosystem → biodiversity | Related words maintain thematic focus |
| Substitution | “This approach” / “Such measures” / “The former” | Refers back without repeating exact words |
| Connective adverbs | Additionally, similarly, nonetheless, meanwhile | Link ideas across sentences and paragraphs |
Building Coherent Paragraphs
- Topic sentence: State the paragraph's main idea clearly
- Supporting detail: Provide evidence, examples, or explanation
- Development: Extend the idea — analyse, compare, or evaluate
- Link: Connect to the next paragraph or back to the overall argument
Weak vs. Strong Cohesion
Weak:
“Pollution is bad. People should recycle. The government should make laws. Companies pollute a lot.”
Strong:“Pollution poses a significant threat to public health. To address this, individuals should adopt recycling practices. However, personal responsibility alone is insufficient; therefore, governments must implement stricter regulations on industrial emissions, which currently account for the majority of environmental damage.”
Language Acquisition · Topic 4.1
Advanced Grammar Structures
Phase 4–5 students must demonstrate complex grammatical structures. These are the structures that distinguish competent writing from sophisticated writing.
Conditional Sentences
| Type | Structure | Example |
|---|---|---|
| Zero | If + present, present | “If you heat water to 100°C, it boils.” (facts) |
| First | If + present, will + infinitive | “If we act now, we will prevent further damage.” (likely future) |
| Second | If + past simple, would + infinitive | “If I were the mayor, I would invest in public transport.” (hypothetical) |
| Third | If + past perfect, would have + past participle | “If the government had acted sooner, the crisis would have been averted.” (past regret) |
Passive Voice
Active: “The committee rejected the proposal.”
Passive: “The proposal was rejected by the committee.”
When to use passive: Formal writing, reports, when the action matters more than the actor, or when the actor is unknown.
Relative Clauses
- Defining: “Students who study regularly achieve higher grades.” (essential information — no commas)
- Non-defining: “My teacher, who has taught for 20 years, recommended this book.” (extra information — commas needed)
Reported Speech
- Direct: She said, “I will attend the meeting.”
- Reported: She said that she would attend the meeting. (tense shifts back)
- Key shifts: will → would, can → could, present → past, today → that day
Critical Rule: Using complex structures incorrectly is worse than using simple structures correctly. At Phase 4–5, aim for mostly accurate complex structures — occasional minor errors are acceptable, but fundamental errors (e.g. “If I would have...”) are penalised.
Language Acquisition · Topic 4.1
Worked Examples
These examples demonstrate Phase 4–5 level writing with sophisticated vocabulary, grammar, and text-type conventions.
EXAMPLE 1Write the opening paragraph of a formal persuasive article arguing that students should have more say in curriculum design.
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Full Solution
“Education is most effective when those it serves have a voice in shaping it. Yet in most schools worldwide, students — the primary stakeholders in the educational process — are consulted last, if at all, when curriculum decisions are made. This must change. Allowing students meaningful input into what and how they learn not only increases motivation and engagement but produces graduates who are better equipped with the critical thinking and self-directed learning skills that the twenty-first century demands.”
Why this works: Semi-formal register appropriate to article format. Complex sentence structures (relative clause, list of three). Varied vocabulary (“stakeholders,” “meaningful input,” “self-directed”). Persuasive techniques (direct statement, appeal to authority of logic).
Why this works: Semi-formal register appropriate to article format. Complex sentence structures (relative clause, list of three). Varied vocabulary (“stakeholders,” “meaningful input,” “self-directed”). Persuasive techniques (direct statement, appeal to authority of logic).
EXAMPLE 2Transform informal language into formal register for a report.
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Full Solution
Informal: “Loads of kids at school are stressed out and can't sleep. It's getting really bad and someone needs to do something about it.”
Formal: “A significant proportion of students report elevated stress levels and disrupted sleep patterns. This trend is concerning and necessitates immediate intervention from both the school administration and health services.”
Key changes: “Loads of kids” → “A significant proportion of students” (precise, formal). “Stressed out” → “elevated stress levels” (clinical, objective). “Someone needs to do something” → “necessitates immediate intervention” (formal verb choice, specific agents identified).
Formal: “A significant proportion of students report elevated stress levels and disrupted sleep patterns. This trend is concerning and necessitates immediate intervention from both the school administration and health services.”
Key changes: “Loads of kids” → “A significant proportion of students” (precise, formal). “Stressed out” → “elevated stress levels” (clinical, objective). “Someone needs to do something” → “necessitates immediate intervention” (formal verb choice, specific agents identified).
EXAMPLE 3Identify and correct the cohesion problems in a paragraph.
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Full Solution
Problem paragraph: “Social media is bad for teenagers. Teenagers spend too much time online. Social media causes anxiety. Teenagers should use social media less.”
Improved: “Social media poses a significant risk to adolescent mental health. Research indicates that teenagers who spend more than three hours daily on these platforms are twice as likely to experience anxiety. Furthermore, the constant comparison with idealised online personas can erode self-esteem. Consequently, it is essential that young people are encouraged to limit their screen time and develop healthier digital habits.”
Fixes: Added transition words (furthermore, consequently). Used pronouns (their) instead of repeating “teenagers.” Added evidence/specificity. Varied sentence structure and vocabulary.
Improved: “Social media poses a significant risk to adolescent mental health. Research indicates that teenagers who spend more than three hours daily on these platforms are twice as likely to experience anxiety. Furthermore, the constant comparison with idealised online personas can erode self-esteem. Consequently, it is essential that young people are encouraged to limit their screen time and develop healthier digital habits.”
Fixes: Added transition words (furthermore, consequently). Used pronouns (their) instead of repeating “teenagers.” Added evidence/specificity. Varied sentence structure and vocabulary.
EXAMPLE 4Write a formal letter to a school principal proposing a new extracurricular activity.
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Full Solution
15 Park Avenue
London SW1A 2AA
15 March 2026
Dear Ms. Thompson,
I am writing to propose the introduction of a coding club as a weekly extracurricular activity at Riverside Academy. Having surveyed 45 students in Years 9 and 10, I found that 78% expressed interest in learning programming but felt that the current curriculum did not provide sufficient opportunity to develop these skills.
A coding club would not only enhance students' digital literacy but also align with the school's strategic goal of preparing pupils for future careers in technology. Furthermore, the club could participate in national competitions, raising the school's profile.
I would be grateful for the opportunity to discuss this proposal further at your convenience.
Yours sincerely,
Alex Chen
Why this works: Correct letter conventions (addresses, date, salutation, closing). Formal register throughout. Evidence cited (survey data). Complex grammar (relative clause, conditional). Clear purpose and polite tone.
London SW1A 2AA
15 March 2026
Dear Ms. Thompson,
I am writing to propose the introduction of a coding club as a weekly extracurricular activity at Riverside Academy. Having surveyed 45 students in Years 9 and 10, I found that 78% expressed interest in learning programming but felt that the current curriculum did not provide sufficient opportunity to develop these skills.
A coding club would not only enhance students' digital literacy but also align with the school's strategic goal of preparing pupils for future careers in technology. Furthermore, the club could participate in national competitions, raising the school's profile.
I would be grateful for the opportunity to discuss this proposal further at your convenience.
Yours sincerely,
Alex Chen
Why this works: Correct letter conventions (addresses, date, salutation, closing). Formal register throughout. Evidence cited (survey data). Complex grammar (relative clause, conditional). Clear purpose and polite tone.
EXAMPLE 5Demonstrate the use of all four conditional types in a paragraph about climate change.
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Full Solution
Zero: “If global temperatures rise by 2°C, sea levels increase significantly.” (scientific fact)
First: “If we reduce emissions by 50% before 2030, we will limit the worst effects of climate change.” (possible future)
Second: “If every country invested equally in renewable energy, the transition would be far more equitable.” (hypothetical present)
Third: “If the international community had acted decisively in the 1990s, we would have avoided the current crisis.” (past regret/unreal past)
Each conditional expresses a different relationship between condition and result: fact, possibility, hypothetical, and counterfactual.
First: “If we reduce emissions by 50% before 2030, we will limit the worst effects of climate change.” (possible future)
Second: “If every country invested equally in renewable energy, the transition would be far more equitable.” (hypothetical present)
Third: “If the international community had acted decisively in the 1990s, we would have avoided the current crisis.” (past regret/unreal past)
Each conditional expresses a different relationship between condition and result: fact, possibility, hypothetical, and counterfactual.
EXAMPLE 6Analyse a short text for bias: “The reckless new policy will devastate hardworking families.”
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Full Solution
This sentence contains several indicators of bias:
1. “Reckless” — an evaluative adjective that presents opinion as fact. A neutral alternative: “the recently introduced policy.”
2. “Devastate” — emotive verb that exaggerates the impact without evidence. A neutral alternative: “affect.”
3. “Hardworking families” — a loaded phrase designed to create sympathy; it implies that those affected are especially deserving, without defining who they are.
The sentence presents a subjective opinion using language that discourages critical examination. A balanced version: “The new policy may have significant consequences for many families, and its potential impact warrants careful evaluation.”
1. “Reckless” — an evaluative adjective that presents opinion as fact. A neutral alternative: “the recently introduced policy.”
2. “Devastate” — emotive verb that exaggerates the impact without evidence. A neutral alternative: “affect.”
3. “Hardworking families” — a loaded phrase designed to create sympathy; it implies that those affected are especially deserving, without defining who they are.
The sentence presents a subjective opinion using language that discourages critical examination. A balanced version: “The new policy may have significant consequences for many families, and its potential impact warrants careful evaluation.”
Language Acquisition · Topic 4.1
Practice Q&A
Attempt each question before revealing the model answer. Focus on register, cohesion, and grammatical accuracy.
PRODUCEWrite the opening of a speech to your school about the importance of mental health awareness.
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Model Answer
“Good morning, everyone. I want to ask you a question: when was the last time someone asked you — really asked you — how you were doing? Not the casual 'how are you?' we exchange in corridors, but a genuine inquiry into your wellbeing. The truth is, one in four young people will experience a mental health challenge before they turn eighteen. That means in this room alone, dozens of us are carrying burdens that nobody sees. Today, I want to talk about why we need to change that.”
Features: Direct address (“everyone,” “you”). Rhetorical question. Statistic for credibility. Emotive language (“carrying burdens”). Semi-formal register appropriate for school speech. Complex sentence structures.
Features: Direct address (“everyone,” “you”). Rhetorical question. Statistic for credibility. Emotive language (“carrying burdens”). Semi-formal register appropriate for school speech. Complex sentence structures.
TRANSFORMRewrite this informal text in formal register: “The food at school is rubbish. Nobody likes it and the portions are tiny. They should fix it.”
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Model Answer
“The quality of food provided by the school catering service is widely regarded as unsatisfactory. Student feedback consistently indicates dissatisfaction with both the nutritional value and the portion sizes of meals offered. It is recommended that the school administration review the current catering arrangements and implement improvements based on student and nutritional advisor input.”
Key changes: “Rubbish” → “unsatisfactory” (formal). “Nobody likes it” → “Student feedback consistently indicates dissatisfaction” (evidence-based). “They should fix it” → “It is recommended that... implement improvements” (passive, formal, specific).
Key changes: “Rubbish” → “unsatisfactory” (formal). “Nobody likes it” → “Student feedback consistently indicates dissatisfaction” (evidence-based). “They should fix it” → “It is recommended that... implement improvements” (passive, formal, specific).
ANALYSEIdentify three examples of bias in: “The lazy government has once again failed our brilliant young people.”
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Model Answer
1. “Lazy” — subjective adjective presenting opinion as fact; assumes negative character trait without evidence.
2. “Once again” — implies a pattern of failure without providing specific instances; assumes the reader agrees with this characterisation.
3. “Brilliant young people” — flattering generalization designed to create sympathy; not all young people are described accurately by this adjective, and it functions as emotive manipulation rather than factual description.
The overall tone is polemical rather than analytical, using loaded language to provoke an emotional response rather than present a balanced argument.
2. “Once again” — implies a pattern of failure without providing specific instances; assumes the reader agrees with this characterisation.
3. “Brilliant young people” — flattering generalization designed to create sympathy; not all young people are described accurately by this adjective, and it functions as emotive manipulation rather than factual description.
The overall tone is polemical rather than analytical, using loaded language to provoke an emotional response rather than present a balanced argument.
PRODUCEWrite a blog post paragraph about a cultural event you attended, using appropriate informal register.
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Model Answer
“So, I finally went to the Diwali Festival of Lights last weekend, and honestly? It was absolutely incredible. The whole park was transformed — thousands of lanterns creating this warm, golden glow that made everything feel magical. The food stalls were next-level (the samosas alone were worth the trip), and the live music had everyone dancing by 8pm. What struck me most, though, was how welcoming everyone was — complete strangers sharing food and stories. If you get the chance to go next year, don't even hesitate.”
Features: Informal register (contractions, colloquial language “next-level”). Personal voice and opinion. Direct reader address. Descriptive, engaging language. Appropriate for blog format.
Features: Informal register (contractions, colloquial language “next-level”). Personal voice and opinion. Direct reader address. Descriptive, engaging language. Appropriate for blog format.
JUSTIFYJustify why learning a second language benefits cognitive development, using at least two complex grammatical structures.
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Model Answer
“Learning a second language significantly enhances cognitive development, which has been demonstrated by numerous neuroscience studies (relative clause). Bilingual individuals, who regularly switch between languages, develop stronger executive function — the ability to focus attention, manage multiple tasks, and filter irrelevant information (non-defining relative clause). If students were exposed to a second language from primary school, they would enter secondary education with demonstrably stronger problem-solving abilities (second conditional). Furthermore, research suggests that bilingualism delays the onset of dementia by an average of 4.5 years, which underscores the long-term cognitive benefits of language learning.”
COMPREHENDRead this text and identify the author's purpose and tone: “While some argue that social media connects us, a growing body of evidence suggests it may, in fact, be driving us further apart.”
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Model Answer
Purpose: To argue that social media's apparent benefit (connection) is undermined by its actual effect (isolation). The author acknowledges the opposing view (“some argue”) before presenting their counter-argument, which indicates a persuasive purpose.
Tone: Measured and academic. The use of hedging language (“may, in fact”) and evidence-based phrasing (“a growing body of evidence suggests”) creates a cautious, credible tone. This contrasts with polemical writing — the author persuades through reason rather than emotion.
Register: Formal. Complex sentence structure, no contractions, objective vocabulary.
Tone: Measured and academic. The use of hedging language (“may, in fact”) and evidence-based phrasing (“a growing body of evidence suggests”) creates a cautious, credible tone. This contrasts with polemical writing — the author persuades through reason rather than emotion.
Register: Formal. Complex sentence structure, no contractions, objective vocabulary.
PRODUCEWrite a counter-argument paragraph for a debate about school uniforms.
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Model Answer
“Opponents of school uniforms contend that they suppress individuality and self-expression, arguing that young people should be free to express their identity through clothing. While this perspective has merit, it overlooks a crucial consideration: in schools without uniforms, clothing often becomes a source of social division and bullying. Students from lower-income families may feel pressured to purchase expensive brands to fit in, creating unnecessary financial burden and anxiety. Therefore, although uniforms may limit one form of self-expression, they arguably promote a more equitable and inclusive school environment.”
Features: Acknowledges the opposing view fairly. Provides a reasoned counter-argument. Uses transition words (while, therefore, although). Complex grammar throughout. Evaluative conclusion.
Features: Acknowledges the opposing view fairly. Provides a reasoned counter-argument. Uses transition words (while, therefore, although). Complex grammar throughout. Evaluative conclusion.
EVALUATEEvaluate the effectiveness of idiomatic language in informal communication.
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Model Answer
Strengths: Idiomatic expressions make communication more vivid and culturally authentic. Phrases like “break the ice” or “hit the nail on the head” convey complex ideas concisely and create a sense of shared cultural understanding between speakers. Using idioms demonstrates advanced language competence and helps build rapport.
Limitations: Idioms are culturally specific and can cause confusion in cross-cultural communication. A non-native speaker may interpret “it's raining cats and dogs” literally. Additionally, overuse of idioms can make writing feel clichéd rather than original.
Evaluation: Idiomatic language is most effective when used selectively and in contexts where the audience is likely to understand. In formal or academic writing, idioms should generally be avoided in favour of precise, literal language.
Limitations: Idioms are culturally specific and can cause confusion in cross-cultural communication. A non-native speaker may interpret “it's raining cats and dogs” literally. Additionally, overuse of idioms can make writing feel clichéd rather than original.
Evaluation: Idiomatic language is most effective when used selectively and in contexts where the audience is likely to understand. In formal or academic writing, idioms should generally be avoided in favour of precise, literal language.
Language Acquisition · Review
Flashcard Review
Tap each card to reveal the answer. Try to answer from memory first.
What is idiomatic language?
Expressions whose meaning differs from the literal sum of their words (e.g. “it's raining cats and dogs” means heavy rain).
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What is the difference between cohesion and coherence?
Cohesion = smooth grammatical/lexical connections between sentences. Coherence = logical flow of ideas throughout the whole text.
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What does “nuanced” mean?
Subtle distinctions — recognising and using small differences in tone, emphasis, and implied meaning.
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At Phase 5, what are the key Criterion D expectations?
Use varied vocabulary and complex grammatical structures accurately; demonstrate register awareness; errors are minor and infrequent.
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How do you make writing more cohesive?
Use transition words (however, therefore), pronouns referring to earlier nouns, lexical chains (related words), and logical connectives between paragraphs.
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What is register?
The level of formality appropriate to the context and audience. Formal, semi-formal, and informal registers have distinct vocabulary and grammar features.
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Name the four conditional types.
Zero (facts), First (likely future), Second (hypothetical present), Third (past regret/counterfactual).
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When should you use passive voice?
In formal writing, reports, when the action matters more than the actor, or when the actor is unknown. E.g. “The proposal was rejected.”
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What is a rhetorical question?
A question asked for effect, not requiring an answer. It engages the audience and implies the answer. E.g. “Can we really afford to do nothing?”
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What is the difference between defining and non-defining relative clauses?
Defining: essential information, no commas (“Students who study...”). Non-defining: extra information, commas needed (“My teacher, who has...”).
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What is bias in a text?
A tendency to favour one perspective over another, often revealed through loaded language, selective evidence, or emotive vocabulary.
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What conventions must a formal letter include?
Sender address, recipient address, date, formal salutation (Dear Sir/Madam), formal closing (Yours faithfully/sincerely), and consistent formal register throughout.
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What is the “rule of three” in persuasive writing?
Presenting ideas in groups of three for rhythmic emphasis: “This policy is unfair, unworkable, and unnecessary.”
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How does reported speech change tenses?
Tenses shift back: present → past, will → would, can → could. Time references also change: today → that day, tomorrow → the following day.
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What makes a counter-argument effective?
Fairly acknowledging the opposing view, then providing evidence and reasoning to refute it. This demonstrates balance, maturity, and rhetorical sophistication.
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Language Acquisition · Practice Test
Practice Test — 20 Questions
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