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NATIONAL GEOGRAPHIC LEARNING

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Unit 7

Global Migration

The World in Motion

Lead-in 01

Have you ever imagined living in a different country? 🌏

About 250 million people worldwide live outside their birth country. They leave for very different reasons — and together, they reshape economies, cultures, and identities.

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Economic

Better jobs & higher wages

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Lifestyle

Retire in a cheaper country

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Forced

Refugees fleeing conflict

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Globalization

Jobs expand across borders

People move for very different reasons — and their impact on the world is bigger than you might think. Let's explore the full picture.

Reading 02

Skimming Task ⏱️

Read the article quickly (90 seconds). Answer three questions:

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WHO?

What are the three types of migrants?

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WHERE?

Which regions have the highest migrant populations?

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WHY DOES IT MATTER?

What impact do migrants have?

✅ WHO: Economic migrants, retirees, and refugees  |  WHERE: UAE (80%), Hong Kong (~40%), vs. Japan (~2%)  |  WHY: Migrants contribute economically ($600B remittances) and enrich cultural diversity
Section One
Who Moves?
250 million people now call a different country home.
Reading 03
Era of Globalization
We live in an era of globalization; about 250 million people worldwide now live in countries other than the one in which they were born. This constant movement of people complicates a question that used to be so much simpler: "Where are you from?"
The semicolon joins two closely related independent clauses — the first states the era we live in, the second gives the evidence (250 million people). A full stop would be grammatically correct, but the semicolon signals a tighter logical link: "this is the era" → "here is the proof." It creates a cause-illustration relationship. The two halves belong together in one breath.
Reading 04
Complicates a Simple Question
We live in an era of globalization; about 250 million people worldwide now live in countries other than the one in which they were born. This constant movement of people complicates a question that used to be so much simpler: "Where are you from?"
Present simple ('complicates') describes an ongoing, current reality — migration is still happening now. 'Used to be' (past habitual) signals that in the past, the question was simple, but that simplicity no longer exists. The contrast between present ('complicates') and past habitual ('used to be') creates a sense of change and loss — something once simple has become irreversibly complex.
Section Two
Why Move?
Economic migrants seek opportunity across borders.
Reading 05
Diverse Reasons
People move countries for a diverse range of reasons. Economic migrants look overseas for better work opportunities and an improved standard of living. They often travel to one of the many developed countries. These countries often have low birthrates, and as a result, are in need of working-age adults. Globalization has led to the overseas expansion of many businesses, allowing skilled workers to take up jobs outside of their home countries.
'Diverse' is an adjective meaning 'of many different kinds'. 'Many' only indicates quantity; 'diverse' indicates variety of type. The author's choice signals that migration cannot be reduced to one motive — the word prepares the reader for the classification that follows (economic, retirement, refugee). It is more precise and academically appropriate.
Reading 06
Economic Migrants
People move countries for a diverse range of reasons. Economic migrants look overseas for better work opportunities and an improved standard of living. They often travel to one of the many developed countries. These countries often have low birthrates, and as a result, are in need of working-age adults. Globalization has led to the overseas expansion of many businesses, allowing skilled workers to take up jobs outside of their home countries.
'Look overseas' literally means to search in foreign countries. Metaphorically, it implies aspiration and forward-looking ambition. 'Improved standard of living' implies that current conditions at home are inadequate — it subtly suggests economic inequality between sending and receiving countries without stating it directly. This is key stylistic technique: implying comparison without explicit criticism.
Reading 07
Developed Countries as Destinations
People move countries for a diverse range of reasons. Economic migrants look overseas for better work opportunities and an improved standard of living. They often travel to one of the many developed countries. These countries often have low birthrates, and as a result, are in need of working-age adults. Globalization has led to the overseas expansion of many businesses, allowing skilled workers to take up jobs outside of their home countries.
'Many' challenges the assumption that there are only a few wealthy destinations — it implies a broad landscape of development globally. 'Often' is a frequency adverb that avoids absolutism: not all economic migrants go to developed countries, just frequently. Together, 'often' + 'many' create a general, carefully hedged statement that is hard to falsify — a common feature of academic writing.
Reading 08
Low Birthrates & Labor Needs
People move countries for a diverse range of reasons. Economic migrants look overseas for better work opportunities and an improved standard of living. They often travel to one of the many developed countries. These countries often have low birthrates, and as a result, are in need of working-age adults. Globalization has led to the overseas expansion of many businesses, allowing skilled workers to take up jobs outside of their home countries.
Cause: 'low birthrates'; Effect: 'are in need of working-age adults'. Connective phrase: 'as a result' (causal connector). This argument is important because it reframes immigration as mutually beneficial — developed countries need migrants just as migrants need opportunities. It counters the view that receiving countries are merely being charitable. Both sides gain.
Reading 09
Globalization Enables Skilled Migration
People move countries for a diverse range of reasons. Economic migrants look overseas for better work opportunities and an improved standard of living. They often travel to one of the many developed countries. These countries often have low birthrates, and as a result, are in need of working-age adults. Globalization has led to the overseas expansion of many businesses, allowing skilled workers to take up jobs outside of their home countries.
'Allowing' is a present participle used as a result clause — it describes the consequence of the overseas expansion. Grammatically, it is a non-finite adverbial clause of result. The present perfect 'has led to' indicates that the action started in the past and has present relevance — globalization's effects are ongoing. 'Allowing' (not 'which allows') creates seamless flow without adding a new subject.
Section Three
Retirees
Some seek a slower, cheaper life abroad.
Reading 10
Retirees as Migrants
Then there are retirees — people who want to spend their later years in a country with a lower cost of living. This group of migrants usually comes from countries where the cost of retirement is expensive.
Here 'then' is a discourse connector (additive), meaning 'next in the classification' or 'additionally'. It does not indicate time sequence. This usage is common in academic writing to signal a structured list: first group → second group ('then'). It adds organizational clarity — the reader knows a new category is beginning. Contrast with temporal 'then': "She arrived, then she left."
Reading 11
Expensive Retirement at Home
Then there are retirees — people who want to spend their later years in a country with a lower cost of living. This group of migrants usually comes from countries where the cost of retirement is expensive.
Implicit comparison: retirement cost at home (high) vs. abroad (lower). Logical chain: expensive home retirement → motivation to move → choice of cheaper destination. The word 'usually' (frequency adverb) avoids overgeneralizing. This sentence completes Para 3 by explaining the push factor (home is too expensive) that drives retirement migration, making the group's motivation economically rational.
Section Four
Refugees
Not all migration is by choice.
Reading 12
Choice vs. No Choice
These first two groups of people move to countries of their own choice, but a third group is not so lucky. Refugees are migrants who are forced to leave their homes for reasons such as conflict in their countries. These migrants often have to undertake dangerous journeys in order to escape.
Contrast: Groups 1 & 2 (move by choice) vs. Group 3 (not by choice). 'Not so lucky' implies that having a choice is a form of privilege — it is a euphemistic, empathetic phrase that signals severity without harsh language. The author's tone becomes more sympathetic. 'Lucky' is informal and human in an otherwise academic text — this tonal shift draws the reader's emotional attention.
Reading 13
Defining Refugees
These first two groups of people move to countries of their own choice, but a third group is not so lucky. Refugees are migrants who are forced to leave their homes for reasons such as conflict in their countries. These migrants often have to undertake dangerous journeys in order to escape.
'Are forced to leave' is a passive construction (subject = refugees; agent = implied external forces). The passive emphasizes that refugees have no agency — the action is done TO them. If active, it would require naming an agent (e.g., 'conflict forces them'), which may be more contentious. The passive keeps focus on the refugees' experience, not the perpetrators.
Reading 14
Dangerous Journeys
These first two groups of people move to countries of their own choice, but a third group is not so lucky. Refugees are migrants who are forced to leave their homes for reasons such as conflict in their countries. These migrants often have to undertake dangerous journeys in order to escape.
'In order to' is an infinitive of purpose — it explains the reason for the action. While 'to escape' carries the same meaning, 'in order to escape' is more formal and emphatic. The expanded form draws attention to the purpose, underscoring that the dangerous journey is not accidental — it is a calculated, desperate necessity. The extra words add gravity and weight to the sentence.
Section Five
Where Do They Go?
Distribution is uneven and shaped by many factors.
Reading 15
Uneven Distribution
The distribution of migrants around the world is not even. Today, the United Arab Emirates (UAE) is one of the top destinations for economic migrants: they make up over 80 percent of the population. In Asia, the distribution varies greatly: About four in ten people living in Hong Kong are foreign-born, but Japan's migrant population is just one in fifty. Where migrants go depends on many factors, such as job opportunities or cultural and language differences.
'Not even' means the distribution is not uniform. Using the negative phrasing (rather than 'unequal') is deliberately understated — it prompts curiosity: 'if it's not even, then how unequal is it?' This creates a rhetorical setup — the dramatic statistics in the following sentences become the answer. Topic sentences with negative structure are effective hooks that pull readers into the evidence.
Reading 16
UAE: 80% Migrants
The distribution of migrants around the world is not even. Today, the United Arab Emirates (UAE) is one of the top destinations for economic migrants: they make up over 80 percent of the population. In Asia, the distribution varies greatly: About four in ten people living in Hong Kong are foreign-born, but Japan's migrant population is just one in fifty. Where migrants go depends on many factors, such as job opportunities or cultural and language differences.
The colon introduces an elaboration — proof of "top destination". It is more emphatic than a comma. The statistic (80%) is striking because it means only 1 in 5 UAE residents is a native citizen — the country's identity is fundamentally shaped by migration. This makes the abstract claim of 'uneven distribution' suddenly concrete and memorable. Specific numbers anchor abstract arguments.
Reading 17
Asia's Contrasts
The distribution of migrants around the world is not even. Today, the United Arab Emirates (UAE) is one of the top destinations for economic migrants: they make up over 80 percent of the population. In Asia, the distribution varies greatly: About four in ten people living in Hong Kong are foreign-born, but Japan's migrant population is just one in fifty. Where migrants go depends on many factors, such as job opportunities or cultural and language differences.
Placing the contrast within one sentence maximizes impact — the reader feels 40% vs. 2% side by side. The colon introduces the elaboration; 'but' signals the contradiction within Asia. Using fractions ('four in ten', 'one in fifty') rather than percentages gives statistics a more human, tangible quality. The rhetorical effect: Asia is not a monolith — diversity is extreme even within one region.
Reading 18
Factors Shaping Migration
The distribution of migrants around the world is not even. Today, the United Arab Emirates (UAE) is one of the top destinations for economic migrants: they make up over 80 percent of the population. In Asia, the distribution varies greatly: About four in ten people living in Hong Kong are foreign-born, but Japan's migrant population is just one in fifty. Where migrants go depends on many factors, such as job opportunities or cultural and language differences.
The noun clause is 'Where migrants go' — it functions as the subject of 'depends'. Noun clauses (wh-clauses) as subjects are typical of academic writing because they allow complex ideas to be grammatically condensed. A noun phrase ('migration destinations') is more static and object-like; the noun clause embeds a question within a statement, signalling that the phenomenon is being actively analyzed.
Section Six
Tensions & Benefits
Migration creates debate — and data tells the story.
Reading 19
Drain on Resources — A Perception
A large-scale influx of migrants can create tensions within the host country, and it is sometimes perceived that migrants create a drain on that country's resources. This is a controversial point, however, and many people disagree. A study by researchers Christian Dustmann and Tommaso Frattini showed that on the whole, migrants from Europe contributed more to Britain's economy than they benefited from the value of public services.
'Is perceived' is passive — the perceiver is unnamed (implied: segments of the host-country population or public opinion). The passive distances the author from the claim — they are reporting a view, not endorsing it. 'Sometimes' further hedges the claim, suggesting it is not universal. Passive + 'sometimes' + 'perceived' all work together as epistemic hedging, attributing the view to unnamed others.
Reading 20
Controversial Point
A large-scale influx of migrants can create tensions within the host country, and it is sometimes perceived that migrants create a drain on that country's resources. This is a controversial point, however, and many people disagree. A study by researchers Christian Dustmann and Tommaso Frattini showed that on the whole, migrants from Europe contributed more to Britain's economy than they benefited from the value of public services.
'However' is a concessive discourse marker — it signals that despite the previous claim, an opposing view exists. Its mid-sentence position gives it strong emphasis. 'Many people' is intentionally vague — it avoids naming who disagrees, which broadens the claim. This sentence acts as a pivot between the tension claim and the evidence that follows, preparing the reader for the research-based rebuttal in S3.
Reading 21
Research Evidence
A large-scale influx of migrants can create tensions within the host country, and it is sometimes perceived that migrants create a drain on that country's resources. This is a controversial point, however, and many people disagree. A study by researchers Christian Dustmann and Tommaso Frattini showed that on the whole, migrants from Europe contributed more to Britain's economy than they benefited from the value of public services.
'On the whole' means 'generally' or 'in most cases' — it acknowledges possible exceptions while asserting the general trend. Naming Dustmann and Frattini is an academic citation technique — it lends credibility and allows readers to verify the claim. Named evidence is far more persuasive than anonymous references to 'studies show'. The combination of hedging + specific attribution is a hallmark of rigorous academic writing.
Section Seven
Economic Impact
Migrants send $600 billion home each year.
Reading 22
Remittances Intro
Migrants also help support the economy of their home countries. Most send money home to their families; the World Bank estimates that international migrants sent home about $600 billion in 2015, an amount comparable to the national wealth of the twentieth richest country in the world.
'Also' signals a new, additional benefit — it extends the list of positive contributions beyond the host country. The significance of helping both countries is rhetorical: it dismantles the zero-sum view of migration (where one side wins and the other loses). Instead, migration is presented as mutually beneficial, a more nuanced and ultimately more persuasive portrayal.
Reading 23
$600 Billion
Migrants also help support the economy of their home countries. Most send money home to their families; the World Bank estimates that international migrants sent home about $600 billion in 2015, an amount comparable to the national wealth of the twentieth richest country in the world.
The appositive phrase 'an amount comparable to...' renames '$600 billion' in more relatable terms. Raw numbers are often hard to contextualize; the comparison to a country's national wealth gives scale and meaning. The author uses this technique (contextualizing a statistic) to make an abstract figure visceral. 'Twentieth richest' implies immense wealth — making $600 billion feel even more staggering.
Section Eight
Cultural Diversity
Migration enriches cultures around the world.
Reading 24
Cultural Benefits
In addition to the economic benefits, migrants may contribute to the cultural diversity of their host countries. The International Organization for Migration (IOM), for example, believes the movement of people around the world to be a positive force. It works with governments to protect migrants' rights. Through a global campaign called "Migrants Contribute," it also raises awareness of the value of migrants' contributions.
'In addition to...' is a discourse connector of addition — it signals a shift from economic arguments to cultural arguments, implying the author is building a cumulative case. 'May contribute' (modal + infinitive) is a hedge — it signals possibility rather than certainty. The author avoids overclaiming cultural benefits the way economic data could be cited. The softer modal 'may' signals appropriate epistemic humility.
Reading 25
IOM's Position
In addition to the economic benefits, migrants may contribute to the cultural diversity of their host countries. The International Organization for Migration (IOM), for example, believes the movement of people around the world to be a positive force. It works with governments to protect migrants' rights. Through a global campaign called "Migrants Contribute," it also raises awareness of the value of migrants' contributions.
That-clause version: 'believes that the movement of people is a positive force.' The original uses a complex object + infinitive structure ('believe NP to be...'), which is more formal and typical of academic/formal writing. The that-clause is more conversational. Both are grammatically correct, but 'believe NP to be' sounds more authoritative — appropriate for describing an international organization's stated position.
Reading 26
Protecting Rights
In addition to the economic benefits, migrants may contribute to the cultural diversity of their host countries. The International Organization for Migration (IOM), for example, believes the movement of people around the world to be a positive force. It works with governments to protect migrants' rights. Through a global campaign called "Migrants Contribute," it also raises awareness of the value of migrants' contributions.
'It' refers to the IOM (established in S2). The short sentence creates a deliberate contrast — it acts like a statement of fact, blunt and unambiguous. In a paragraph full of hedged language ('may', 'believes', 'for example'), this direct assertion stands out. Short sentences among longer ones draw the reader's eye and add emphasis — they feel authoritative precisely because they say one thing clearly.
Reading 27
"Migrants Contribute" Campaign
In addition to the economic benefits, migrants may contribute to the cultural diversity of their host countries. The International Organization for Migration (IOM), for example, believes the movement of people around the world to be a positive force. It works with governments to protect migrants' rights. Through a global campaign called "Migrants Contribute," it also raises awareness of the value of migrants' contributions.
'Through a global campaign called "Migrants Contribute"' is a prepositional phrase of means — it describes HOW the IOM raises awareness. The campaign name 'Migrants Contribute' is rhetorically powerful because it is a direct, affirmative rebuttal to the 'drain on resources' claim in Para 6. By naming the campaign, the author lets the name itself carry the counter-argument — persuasion embedded in a proper noun.
Section Nine
A Multicultural World
The future is already here in global cities.
Reading 28
Blend of Cultures
As we move toward an increasingly multicultural world, we can observe how a blend of cultures creates vibrancy in different countries. Being able to experience multiple cultures just by walking down the street is something that our grandparents might never have imagined. In many global cities today, it's already a reality.
'We' is an inclusive pronoun referring to humanity/society, including both the author and reader. It creates a sense of shared experience and collective movement — more persuasive than 'as the world becomes...'. 'Increasingly' (degree adverb) suggests the trend is growing, not static. 'Vibrancy' is a positive, energetic noun — the author's concluding tone is clearly optimistic, moving away from tension toward celebration.
Reading 29
Grandparents' Imagination
As we move toward an increasingly multicultural world, we can observe how a blend of cultures creates vibrancy in different countries. Being able to experience multiple cultures just by walking down the street is something that our grandparents might never have imagined. In many global cities today, it's already a reality.
'Might never have imagined' is a modal perfect (might + have + past participle) expressing a counterfactual — something that was impossible or unimaginable in the past but is now real. The author invokes 'grandparents' (roughly 50–70 years ago) to make the change tangible and personal. It is more emotionally resonant than 'people in the past'. Implicit contrast: what was unimaginable for them is ordinary for us.
Reading 30
Already a Reality
As we move toward an increasingly multicultural world, we can observe how a blend of cultures creates vibrancy in different countries. Being able to experience multiple cultures just by walking down the street is something that our grandparents might never have imagined. In many global cities today, it's already a reality.
Length: extremely short (5 words) — after long, complex sentences, brevity creates maximum impact. 'Already': emphasizes that the future has arrived sooner than expected — not a prediction, but a present fact. Tense: present simple ('is') — the most definitive, universal tense. The sentence functions as a closing declaration: not a hope, not a prediction, but a stated, undeniable reality. Quiet, confident, final.
Language 31

Hedging with Modal Verbs

How do writers signal uncertainty vs. certainty in academic texts?

A) Migrants may contribute to the cultural diversity of their host countries.

B) A large-scale influx of migrants can create tensions within the host country.

C) Migrants will contribute to cultural diversity. ❌ (overstated — too certain)

D) RULE: may / might = possible | can / could = ability/general | will = certain/predicted

Classify each modal. Rank them from most to least certain:
may can might will could

Certainty rank (most → least):
will > can > may ≈ might > could

Why academic writing prefers 'may' over 'will': Social phenomena are complex and hard to predict absolutely. 'Will' implies guaranteed outcomes, which is rarely defensible with social science data. 'May/might' signals that evidence supports the possibility while acknowledging exceptions. This epistemic hedging is a hallmark of academic integrity — it shows the writer is aware of the limits of their claims.

Your turn: Rewrite "Migration will change host countries" using appropriate hedging modals.
Language 32

Noun Clauses as Subjects

Turning embedded questions into academic subjects

A) Where migrants go depends on many factors.

B) Why people leave their home countries is complex.

C) What the study showed was that migrants net-contribute.

D) RULE: wh-word + clause = noun clause → can be subject, object, or complement

Identify the noun clause and its grammatical role in each sentence:
where why what whether how

A: Noun clause = 'Where migrants go' → subject of 'depends'
B: Noun clause = 'Why people leave their home countries' → subject of 'is'
C: Noun clause = 'What the study showed' → subject of 'was'

Why noun clause subjects sound more academic: They embed a question within a statement, showing the issue is being actively analyzed, not just described. A noun phrase subject ('Migration destinations depend on...') is more static and object-like. The noun clause version signals analytical depth.

Transform: "The question of refugee distribution" → "Where refugees settle depends on security and support systems."
Language 33

Appositives for Elaboration

Expanding on nouns without starting a new sentence

A) ...about $600 billion in 2015, an amount comparable to the national wealth of the twentieth richest country.

B) The IOM, the International Organization for Migration, works with governments.

C) Refugees, migrants who are forced to leave their homes, often face dangerous journeys.

D) RULE: NOUN, [noun phrase that renames/elaborates] → appositive; set off by commas

Identify the appositive phrase in each sentence:
appositive rename elaborate non-restrictive

A: Appositive = 'an amount comparable to...' → renames '$600 billion' with a contextualizing comparison
B: Appositive = 'the International Organization for Migration' → provides the full name after the abbreviation
C: Appositive = 'migrants who are forced to leave their homes' → defines/explains 'refugees'

Why use appositive for '$600 billion' rather than a new sentence? Appositives keep elaboration inside the same sentence, maintaining momentum. A new sentence ('This is comparable to...') would disrupt focus. The appositive technique is especially effective for statistics: it immediately contextualizes the number before the reader moves on.

Your turn: Add an appositive to "The UAE is a top destination for migrants."
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Lesson Complete

Unit 7: Global Migration

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Three Types

Economic migrants, retirees & refugees

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Uneven World

UAE 80% · Hong Kong 40% · Japan 2%

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$600 Billion

Remittances shape home economies

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Vibrancy

Cultural diversity enriches host countries

In many global cities today, it's already a reality.

— Unit 7: Global Migration