IELTS Reading-Style Fill in the Blanks — 10 Practice Sets
Each passage contains 200–250 words and
4 blanks requiring words or numbers from the passage.
Instructions: Read each passage carefully and fill
in the blanks with the correct word(s) or number(s) from the passage. Answers
are NOT provided so you can practice actively.
Set 1: The Migration of Monarch
Butterflies
The monarch butterfly is one of the most
remarkable migratory species on Earth. Each year, millions of these insects
travel thousands of kilometers from North America to central Mexico, where they
overwinter in dense forest colonies. This extraordinary journey can span up to
4,800 kilometers and takes several generations to complete. What makes this
migration even more astonishing is that no single butterfly completes the
entire round trip. Instead, it is a multi-generational phenomenon, with the
final generation living up to eight months to make the return journey north.
Scientists have discovered that monarchs use a combination of environmental
cues, including the position of the sun and the Earth's magnetic field, to
navigate. However, monarch populations have declined dramatically in recent
decades, with habitat loss and climate change being the primary threats.
Conservation efforts are underway to restore milkweed habitats, which are
essential for monarch reproduction, as these plants are the only food source
for their caterpillars.
Blanks:
1.
Monarch
butterflies travel up to __________ kilometers from North America to central
Mexico.
2.
The
final generation of monarchs lives up to __________ months to complete the
return journey.
3.
Monarchs
use the position of the __________ and the Earth's magnetic field to navigate.
4.
__________
are the only food source for monarch caterpillars.
Set 2: The History of the Printing
Press
The invention of the printing press in the
fifteenth century revolutionized the spread of knowledge and information.
Before its creation, books were painstakingly copied by hand, usually by monks
in monasteries, making them rare and expensive. In 1440, a German goldsmith
named Johannes Gutenberg developed a movable type printing press that used
metal letters arranged in frames. This innovation allowed for the rapid
production of texts, dramatically reducing the cost of books. Gutenberg's most
famous work was the printing of the Bible, with approximately 180 copies
produced, of which about 49 survive today. The printing press played a crucial
role in the Renaissance, the Protestant Reformation, and the Scientific
Revolution by enabling the widespread distribution of new ideas. It is
estimated that within fifty years of its invention, over 20 million books had
been printed across Europe, fundamentally transforming education, religion, and
politics.
Blanks:
1.
Johannes
Gutenberg developed the printing press in the year __________.
2.
Approximately
__________ copies of the Gutenberg Bible survive today.
3.
Within
fifty years of its invention, over __________ books had been printed across
Europe.
4.
The
printing press transformed __________, religion, and politics.
Set 3: The Causes of Obesity
Obesity has become a global health epidemic,
with rates more than tripling since 1975. According to the World Health
Organization, over 650 million adults worldwide were obese in 2016, a figure
that continues to rise. The primary cause of obesity is an energy imbalance
between calories consumed and calories expended, but the condition is
influenced by a complex combination of factors. These include genetic
predisposition, behavioral patterns, and environmental factors such as the
widespread availability of high-calorie processed foods. Urbanization and
sedentary lifestyles have also contributed significantly, with many people
spending long hours sitting at desks or using electronic devices.
Interestingly, research has shown that inadequate sleep can disrupt hormones that
regulate appetite, leading to increased food intake. Addressing obesity
requires comprehensive strategies, including promoting healthy eating habits,
encouraging regular physical activity, and implementing policies that make
nutritious foods more accessible.
Blanks:
1.
Over
__________ million adults worldwide were obese in 2016.
2.
The
primary cause of obesity is an imbalance between calories consumed and calories
__________.
3.
__________
lifestyles have contributed significantly to the rise of obesity.
4.
Inadequate
sleep can disrupt __________ that regulate appetite.
Set 4: The Amazon Rainforest
The Amazon rainforest, often called the
"lungs of the Earth," is the world's largest tropical rainforest,
covering approximately 5.5 million square kilometers across nine South American
countries. It is home to an estimated 390 billion individual trees and
represents over half of the planet's remaining rainforests. The Amazon produces
about 20% of the world's oxygen and plays a critical role in regulating the
global climate by absorbing vast amounts of carbon dioxide. However, the
rainforest is under severe threat from deforestation, largely driven by cattle
ranching, soybean cultivation, and illegal logging. Between 2000 and 2020, the
Amazon lost approximately 10% of its original forest cover. Scientists warn
that if deforestation continues at the current rate, the Amazon could reach a
tipping point where it transitions from a rainforest to a dry savanna, with
catastrophic consequences for biodiversity and climate stability.
Blanks:
1.
The
Amazon rainforest covers approximately __________ square kilometers.
2.
The
Amazon produces about __________ of the world's oxygen.
3.
Between
2000 and 2020, the Amazon lost approximately __________ of its original forest
cover.
4.
Deforestation
is largely driven by cattle ranching, soybean cultivation, and illegal
__________.
Set 5: The Benefits of Bilingualism
Speaking more than one language offers
numerous cognitive, social, and economic benefits that extend far beyond the
ability to communicate with diverse groups of people. Research has shown that
bilingual individuals often exhibit superior executive function skills,
including enhanced attention control, problem-solving abilities, and cognitive
flexibility. These advantages are particularly pronounced in older adults,
where bilingualism has been linked to a delay in the onset of dementia and
Alzheimer's disease by up to five years. Furthermore, bilingualism fosters
cultural awareness and empathy, enabling individuals to appreciate different
perspectives. Economically, bilingual employees often command higher salaries,
with some studies indicating a wage premium of up to 10% in certain industries.
Despite these benefits, many education systems continue to prioritize
monolingual instruction, particularly in English-speaking countries, where
foreign language learning has declined in recent decades.
Blanks:
1.
Bilingualism
has been linked to a delay in the onset of dementia by up to __________ years.
2.
Bilingual
employees often command a wage premium of up to __________ in certain
industries.
3.
Bilingual
individuals often exhibit superior __________ function skills.
4.
Foreign
language learning has __________ in English-speaking countries in recent
decades.
Set 6: The Formation of Hurricanes
Hurricanes, also known as cyclones or typhoons
depending on their location, are among the most powerful and destructive
natural phenomena on Earth. These massive storm systems form over warm tropical
oceans when sea surface temperatures exceed 27°C, providing the energy needed
for evaporation and convection. As warm, moist air rises, it creates a low-pressure
system beneath, drawing in more air and causing winds to spiral inward. The
rotation of the Earth, known as the Coriolis effect, causes these storms to
spin, with the direction of rotation depending on the hemisphere. Hurricanes
are categorized on the Saffir-Simpson scale, which ranges from Category 1 to
Category 5, based on sustained wind speeds. A Category 5 hurricane, the most
severe, has wind speeds exceeding 252 kilometers per hour. Climate change is
expected to increase the intensity of hurricanes, although the frequency of
storms may not necessarily increase.
Blanks:
1.
Hurricanes
form over warm tropical oceans when sea surface temperatures exceed __________.
2.
The
__________ of the Earth causes hurricanes to spin.
3.
A
Category 5 hurricane has wind speeds exceeding __________ kilometers per hour.
4.
Hurricanes
are categorized on the __________ scale.
Set 7: The Growth of E-Commerce
The rise of e-commerce has fundamentally
transformed the retail landscape, reshaping how consumers shop and how
businesses operate. In 2020, global e-commerce sales reached approximately $4.3
trillion, representing a dramatic increase from just $1.3 trillion in 2014. The
COVID-19 pandemic accelerated this growth, as lockdowns and social distancing
measures forced consumers to shop online for goods and services they previously
purchased in physical stores. China remains the world's largest e-commerce
market, accounting for over 40% of all global online retail sales. Mobile
commerce, or m-commerce, has been a particularly significant driver of growth,
with over 70% of all e-commerce transactions now conducted on smartphones.
However, e-commerce also presents challenges, including intense competition,
logistical complexities, and concerns about data privacy and cybersecurity. As
technology continues to evolve, the future of retail will likely involve an
integrated omnichannel approach that combines online and offline experiences.
Blanks:
1.
Global
e-commerce sales in 2020 reached approximately __________.
2.
China
accounts for over __________ of all global online retail sales.
3.
Over
__________ of all e-commerce transactions are now conducted on smartphones.
4.
The
future of retail will likely involve an integrated __________ approach.
Set 8: The Importance of Sleep
Sleep is a fundamental biological necessity
that plays a critical role in physical health, mental well-being, and cognitive
performance. The National Sleep Foundation recommends that adults aged 18 to 64
should get between 7 and 9 hours of sleep per night, while teenagers require
approximately 8 to 10 hours. Despite these guidelines, surveys indicate that
about one-third of adults report sleeping less than the recommended amount.
Chronic sleep deprivation has been linked to serious health conditions,
including obesity, type 2 diabetes, cardiovascular disease, and depression.
Moreover, insufficient sleep impairs memory consolidation, attention, and
decision-making abilities, increasing the risk of accidents and errors. Sleep
hygiene practices, such as maintaining a consistent sleep schedule, creating a
dark and quiet bedroom environment, and limiting screen time before bed, can
improve sleep quality. Interestingly, research has found that napping for 20 to
30 minutes during the day can boost alertness and performance without causing
nighttime sleep disruption.
Blanks:
1.
Teenagers
require approximately __________ hours of sleep per night.
2.
About
__________ of adults report sleeping less than the recommended amount.
3.
Chronic
sleep deprivation has been linked to __________, among other health conditions.
4.
Napping
for __________ to 30 minutes can boost alertness without disrupting nighttime
sleep.
Set 9: The Future of Artificial
Intelligence
Artificial intelligence (AI) has advanced at
an extraordinary pace in recent years, with machine learning and deep learning
algorithms now capable of performing tasks that were once considered uniquely
human. AI applications have become ubiquitous, powering virtual assistants,
recommendation systems, autonomous vehicles, and medical diagnostic tools. In
2023, the global AI market was valued at approximately $200 billion, with
projections suggesting it could reach $1.8 trillion by 2030. However, the rapid
development of AI has also raised significant ethical and societal concerns.
These include algorithmic bias, which can perpetuate discrimination; the
opacity of decision-making processes, often referred to as the "black
box" problem; and the potential displacement of workers as automation
replaces certain jobs. Experts emphasize the need for robust regulatory
frameworks, transparency, and public engagement to ensure that AI technologies
are developed and deployed responsibly.
Blanks:
1.
The
global AI market was valued at approximately __________ in 2023.
2.
The
AI market could reach __________ by 2030.
3.
Algorithmic
bias can perpetuate __________.
4.
The
opacity of decision-making processes is referred to as the
"__________" problem.
Set 10: The Great Wall of China
The Great Wall of China is one of the most
iconic and extensive architectural feats in human history, spanning thousands
of kilometers across northern China. Construction of the wall began over 2,000
years ago during the Qin Dynasty, with significant expansions and renovations
occurring during the Ming Dynasty between 1368 and 1644. The wall was primarily
built to protect Chinese states and empires from invasions by nomadic groups
from the Eurasian Steppe. Contrary to popular belief, the Great Wall is not a
single continuous wall but a network of fortifications, including watchtowers,
barracks, and signaling stations. The total length of the wall, including all
its branches and sections, is estimated to be approximately 21,196 kilometers.
Today, the Great Wall is recognized as a UNESCO World Heritage Site and
attracts millions of visitors annually, although some sections have
deteriorated due to natural erosion and human activity.
Blanks:
1.
Construction
of the Great Wall began over __________ years ago.
2.
Significant
expansions occurred during the __________ Dynasty.
3.
The
total length of the Great Wall is estimated to be approximately __________
kilometers.
4.
The
Great Wall was built to protect from invasions by __________ groups.
IELTS
Reading-Style Fill in the Blanks — Answers with Short Reasons
Set 1: The Migration of Monarch
Butterflies
Answers
1.
4,800
2.
eight
3.
sun
4.
milkweed
Short Reasons
1.
The
passage says the journey can span up to 4,800 kilometers.
2.
The
final generation can live up to eight months to make the return journey.
3.
Monarchs
use the position of the sun and the Earth's magnetic field to navigate.
4.
Milkweed plants are the only food source for
monarch caterpillars.
Set 2: The History of the Printing
Press
Answers
1.
1440
2.
49
3.
20
million
4.
education
Short Reasons
1.
The
passage states that Gutenberg developed the printing press in 1440.
2.
About
49 copies of the Gutenberg Bible survive today.
3.
Within
fifty years, over 20 million books had been printed across Europe.
4.
The
printing press transformed education, religion, and politics.
Set 3: The Causes of Obesity
Answers
1.
650
2.
expended
3.
sedentary
4.
hormones
Short Reasons
1.
The
passage says over 650 million adults were obese in 2016.
2.
Obesity
is caused partly by an imbalance between calories consumed and calories expended.
3.
Sedentary lifestyles have contributed
significantly to obesity.
4.
Inadequate
sleep can disrupt hormones that regulate appetite.
Set 4: The Amazon Rainforest
Answers
1.
5.5
million
2.
20%
3.
10%
4.
logging
Short Reasons
1.
The
Amazon covers approximately 5.5 million square kilometers.
2.
It
produces about 20% of the world's oxygen.
3.
Between
2000 and 2020, it lost approximately 10% of its original forest cover.
4.
Deforestation
is driven by cattle ranching, soybean cultivation, and illegal logging.
Set 5: The Benefits of Bilingualism
Answers
1.
five
2.
10%
3.
executive
4.
declined
Short Reasons
1.
Bilingualism
can delay the onset of dementia and Alzheimer's disease by up to five years.
2.
Bilingual
employees may receive a wage premium of up to 10%.
3.
Bilingual
individuals often show superior executive function skills.
4.
Foreign
language learning has declined in English-speaking countries.
Set 6: The Formation of Hurricanes
Answers
1.
27°C
2.
rotation
3.
252
4.
Saffir-Simpson
Short Reasons
1.
Hurricanes
form when sea surface temperatures exceed 27°C.
2.
The
rotation of the Earth, known as the Coriolis effect, causes hurricanes
to spin.
3.
Category
5 hurricanes have wind speeds exceeding 252 kilometers per hour.
4.
Hurricanes
are categorized using the Saffir-Simpson scale.
Set 7: The Growth of E-Commerce
Answers
1.
$4.3
trillion
2.
40%
3.
70%
4.
omnichannel
Short Reasons
1.
Global
e-commerce sales reached approximately $4.3 trillion in 2020.
2.
China
accounts for over 40% of global online retail sales.
3.
Over
70% of e-commerce transactions are conducted on smartphones.
4.
The
passage predicts an integrated omnichannel approach to retail.
Set 8: The Importance of Sleep
Answers
1.
8
to 10
2.
one-third
3.
obesity
4.
20
Short Reasons
1.
Teenagers
require approximately 8 to 10 hours of sleep per night.
2.
About
one-third of adults sleep less than the recommended amount.
3.
Sleep
deprivation has been linked to obesity, type 2 diabetes, cardiovascular
disease, and depression.
4.
Napping
for 20 to 30 minutes can improve alertness without disrupting nighttime
sleep.
Set 9: The Future of Artificial
Intelligence
Answers
1.
$200
billion
2.
$1.8
trillion
3.
discrimination
4.
black
box
Short Reasons
1.
The
global AI market was valued at approximately $200 billion in 2023.
2.
It
could reach $1.8 trillion by 2030.
3.
Algorithmic
bias can perpetuate discrimination.
4.
The
opacity of AI decision-making is called the "black box"
problem.
Set 10: The Great Wall of China
Answers
1.
2,000
2.
Ming
3.
21,196
4.
nomadic
Short Reasons
1.
Construction
began over 2,000 years ago.
2.
Major
expansions and renovations occurred during the Ming Dynasty.
3.
The
total length is estimated at approximately 21,196 kilometers.
4.
The
wall was built to protect against invasions by nomadic groups.
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