Reading Lab

IELTS Academic Reading Practice Pack 46

A full 60-minute Academic Reading mock with three source-grounded passages, 40 questions, answer key coverage, and doctrine QA traceability.

Question count

Time allowed

60 min

Passages

Academic ReadingFull MockIELTS PracticeQA Approved

Exam panel

You have 60 minutes including answer transfer time. Submit once at the end or let the timer finish the exam automatically.

Time remaining

60:00

0 / 40 answers filled

Write only what the question requires. One extra word can still lose the mark.

After submission, you will see your raw score, estimated Academic Reading band, and the correct answers for every question.

What this reading pack trains

This set is built around coral restoration in a warming ocean, microplastics in freshwater sediments, open peer review and the question of trust with 7 official IELTS Reading task types spread across three passages.

IELTS Academic Reading Practice Pack 46 is designed as a full Academic Reading simulation, not just a passage archive. The three texts move from a more accessible opener into denser, more inference-heavy material so the burden rises in the same direction students expect in a real test.

Across this pack, you work through roughly 2,320 words on Microplastics in Freshwater Sediments; Coral Restoration in a Warming Ocean; Open Peer Review and the Question of Trust. That mix matters because IELTS Reading rewards candidates who can adjust between topic vocabulary, paraphrase recognition, and question-discipline rather than relying on one search habit.

Use this pack when you want one serious timed session, then review every wrong answer against the exact trap type. A strong post-test habit is to check whether the miss came from rushing, weak paraphrase tracking, unstable Not Given logic, or ignoring the word-limit instruction.

Inside the pack

Use the pack as one timed attempt, then return for deliberate review.

Domains

coral restoration in a warming ocean · microplastics in freshwater sediments · open peer review and the question of trust

Question types

Matching Headings · Matching Sentence Endings · Multiple Choice · Sentence Completion · Summary Completion · True/False/Not Given · Yes/No/Not Given

If you want more full mocks after this one, go back to the Reading pack library. If you need a broader exam routine, pair one reading session with Listening practice or IELTS Writing repair work.

Passage 1

Microplastics in Freshwater Sediments

An academic IELTS passage on microplastics in freshwater sediments, opening with for many years, public discussion of plastic pollution focused mainly on oceans: floating bags, entangled turtles and fragments found on beaches.

A.A. For many years, public discussion of plastic pollution focused mainly on oceans: floating bags, entangled turtles and fragments found on beaches. Freshwater systems received less attention, partly because rivers and lakes were treated as routes by which plastic eventually reached the sea. Recent monitoring has made that view too simple. Streams, reservoirs and lake beds can also act as temporary stores where small plastic particles collect, move, sink and sometimes re-enter the water column. Sediments are therefore not merely the end point of pollution. They are part of an active system that can hide contamination from the surface while keeping it available to organisms that feed or burrow near the bottom.

B.B. Microplastics are commonly defined as plastic particles smaller than five millimetres. Some are manufactured at that size, such as industrial pellets or abrasive beads once used in personal-care products. Others form when larger objects are weakened by sunlight, abrasion and repeated heating and cooling. Fibres from synthetic clothing may enter wastewater during washing, while fragments from tyres and road markings can be carried into drains during rain. In freshwater environments, these particles vary in colour, shape, density and chemical composition. That variation matters because a light film may travel differently from a dense fragment, and a thin fibre may be trapped by vegetation or sediment grains in ways a pellet is not.

C.C. Sampling sediments is more difficult than collecting floating debris. Researchers must decide where to take samples, how deeply to collect them and which laboratory method will separate plastic from natural material without destroying the particles being studied. A sample from a calm side channel may not represent a fast-flowing reach upstream. Similarly, a lake shore influenced by recreation may contain different particles from deeper zones affected by currents and storms. These choices mean that studies cannot always be compared directly, even when they use similar definitions. A low count in one survey may reflect cleaner conditions, but it may also reflect a different mesh size, a different digestion method or a failure to detect the smallest fibres.

D.D. Sediments can accumulate microplastics because many particles lose buoyancy over time. Mineral grains, organic films and microorganisms may attach to plastic surfaces, increasing their weight. Floods can then disturb the same material and carry it downstream, while quieter periods allow deposition to resume. This stop-start movement makes freshwater systems complex. A river bed may appear stable during ordinary flow, yet become a temporary source during heavy rain. In lakes, wind-driven circulation can resuspend fine material from shallow margins. The result is not a simple journey from city to ocean, but a sequence of storage, release and redistribution.

E.E. The biological significance of sediment microplastics remains difficult to judge. Laboratory studies show that some bottom-feeding organisms can ingest small particles, especially when plastic resembles food or is mixed with organic matter. However, the consequences depend on dose, particle size, polymer type and the condition of the organism. Microplastics may cause physical irritation, carry additives or provide surfaces for other contaminants, but they do not all behave in the same way. A cautious interpretation is therefore needed. The presence of particles in sediment is not, by itself, proof of severe ecological harm, yet it does indicate that organisms may encounter plastics in places that surface surveys miss.

F.F. Management responses are complicated by the diversity of sources. Improving wastewater treatment may reduce some fibres, but it will not directly address tyre wear or fragmented packaging left near waterways. Street sweeping, stormwater filters, product redesign and better waste collection can each reduce particular pathways. The most effective approach is likely to combine prevention with monitoring rather than relying on cleanup after particles have dispersed. Once microplastics mix with natural sediment, removing them without damaging habitat is rarely practical.

G.G. Freshwater sediment research has therefore shifted the plastic-pollution problem from a visible litter issue to a measurement and systems problem. Scientists must ask where particles come from, how they move, where they pause and which organisms are exposed. The answers will not be identical in a mountain stream, an urban canal and a large reservoir. Yet the broader lesson is consistent: pollution that is difficult to see can still be environmentally relevant, and managing it requires attention to both sources and hidden stores.

True/False/Not Given

Questions 1-6

Do the following statements agree with the information given in Reading Passage 1?

Write

TRUE if the statement agrees with the information

FALSE if the statement contradicts the information

NOT GIVEN if there is no information on this

1. Freshwater sediments can store plastic particles that are not visible in surface-water surveys.

2. Most microplastics in freshwater systems are deliberately manufactured at that size.

3. The physical form of a microplastic particle can affect how it moves through freshwater environments.

4. All studies of freshwater sediment microplastics can be compared directly if they use the same size definition.

5. Floods may turn river-bed sediments into a source of previously stored microplastics.

6. Current evidence proves that all sediment microplastics cause severe ecological harm.

Sentence Completion

Questions 7-13

Complete the sentences below.

Choose NO MORE THAN TWO WORDS from the passage for each answer.

7. Microplastics are usually defined as particles smaller than five __________.

8. Synthetic clothing can release __________ during washing.

9. Researchers must choose how deeply to collect sediment __________.

10. Microorganisms and organic films can make plastic particles lose __________.

11. Bottom-feeding organisms may ingest particles when plastic is mixed with __________ matter.

12. Management is difficult because microplastics come from many different __________.

13. Once microplastics have mixed with natural sediment, removing them without habitat damage is rarely __________.

Passage 2

Coral Restoration in a Warming Ocean

An academic IELTS passage on coral restoration in a warming ocean, opening with coral restoration was once presented mainly as a local repair activity.

A.A. Coral restoration was once presented mainly as a local repair activity. Divers grew fragments in underwater nurseries, attached them to damaged reefs and hoped that colonies would expand. Such work still matters, particularly after ship groundings, storms or disease outbreaks. Yet restoration now takes place in a different climatic setting. Marine heatwaves and repeated bleaching events can affect reefs that have not suffered obvious local damage. As a result, restoration is no longer only a question of replacing lost coral cover. It also asks whether restored corals can survive conditions that are becoming less favourable.

B.B. Bleaching occurs when heat stress disrupts the relationship between corals and the microscopic algae that live in their tissues. The algae provide much of the coral's energy through photosynthesis, while the coral supplies shelter and nutrients. When water temperatures remain above a coral's usual tolerance, this partnership can break down and the coral may turn pale. Bleached coral is not necessarily dead, but it is weakened and may die if stressful conditions continue. Monitoring systems use satellite observations of sea-surface temperature to estimate when heat stress is likely to become dangerous, although local depth, currents and shading can influence the outcome at individual reefs.

C.C. Traditional restoration methods often select fragments from colonies that are easy to collect, fast to grow or already common at a site. Those criteria are practical, but they may not be enough in warmer seas. Some programmes now consider thermal tolerance, disease resistance and genetic diversity when choosing parent colonies. The aim is not to create a single "super coral" that can solve bleaching, but to avoid rebuilding reefs with material that is likely to fail under repeated stress. Maintaining diversity also reduces the risk that one disease or heat event will damage all restored colonies in the same way.

D.D. Nursery design has changed as well. In some projects, young corals are grown in ocean nurseries suspended in the water column; in others, they are raised in land-based tanks where light, temperature and water chemistry can be controlled. Land-based systems can protect juveniles from predators and storms, and they may allow managers to test responses before outplanting. However, they are expensive and cannot reproduce every feature of a reef. Ocean nurseries are cheaper and closer to natural conditions, but they remain vulnerable to the same heatwaves that threaten wild corals. Neither system is automatically superior; each suits different goals, budgets and species.

E.E. Scientists are also studying assisted conditioning, sometimes called stress hardening, in which corals are exposed to controlled stress before being returned to the reef. The logic is that limited exposure may trigger physiological responses that improve later tolerance. Early results are promising in some contexts, but they do not justify careless optimism. A coral that survives a laboratory heat challenge may still be affected by poor water quality, competition from algae, disease or physical damage after outplanting. Heat tolerance is only one part of reef resilience.

F.F. The social dimension of restoration is equally important. Coastal communities may value reefs for fishing, tourism, shoreline protection and cultural identity. Restoration can provide employment and education, but it can also create unrealistic expectations if it is advertised as a substitute for reducing greenhouse-gas emissions or local pollution. Managers increasingly stress that restoration should be one tool within a wider strategy: protecting water quality, reducing physical damage, supporting herbivorous fish and using heat-stress forecasts to prioritise emergency responses.

G.G. Measuring success is another challenge. A project may report thousands of outplanted fragments, yet numbers planted are not the same as colonies surviving, reproducing and contributing to reef function. Short-term survival can look encouraging even when long-term recovery remains uncertain. For this reason, some researchers argue for standardised monitoring that records survival, growth, bleaching response, genetic representation and ecological effects over several years. Such records make restoration less spectacular as a public story, but more useful as a conservation practice.

H.H. Coral restoration in a warming ocean is therefore best understood as adaptive management rather than simple repair. It can help preserve local reef functions and maintain options for the future, especially when projects are carefully designed and monitored. But restoration cannot reverse the thermal pressure driving mass bleaching. Its value depends on being honest about scale: it may strengthen particular reefs, buy time for vulnerable ecosystems and test methods for resilience, but it cannot replace action on the conditions that make restoration necessary.

Matching Headings

Questions 14-19

Reading Passage 2 has eight paragraphs, A-H.

Choose the correct heading for paragraphs B-G from the list of headings below.

List of Headings

14. Paragraph B

i. Why local communities may misunderstand restoration
ii. Heat stress and the breakdown of a biological partnership
iii. The need to measure more than planting numbers
iv. A comparison of nursery environments
v. Choosing coral material for future conditions
vi. Why restoration can replace climate action
vii. Limited promise of controlled stress exposure
viii. The financial history of coral tourism
ix. How coral restoration has become adaptive management
x. A method for removing algae from reefs

15. Paragraph C

i. Why local communities may misunderstand restoration
ii. Heat stress and the breakdown of a biological partnership
iii. The need to measure more than planting numbers
iv. A comparison of nursery environments
v. Choosing coral material for future conditions
vi. Why restoration can replace climate action
vii. Limited promise of controlled stress exposure
viii. The financial history of coral tourism
ix. How coral restoration has become adaptive management
x. A method for removing algae from reefs

16. Paragraph D

i. Why local communities may misunderstand restoration
ii. Heat stress and the breakdown of a biological partnership
iii. The need to measure more than planting numbers
iv. A comparison of nursery environments
v. Choosing coral material for future conditions
vi. Why restoration can replace climate action
vii. Limited promise of controlled stress exposure
viii. The financial history of coral tourism
ix. How coral restoration has become adaptive management
x. A method for removing algae from reefs

17. Paragraph E

i. Why local communities may misunderstand restoration
ii. Heat stress and the breakdown of a biological partnership
iii. The need to measure more than planting numbers
iv. A comparison of nursery environments
v. Choosing coral material for future conditions
vi. Why restoration can replace climate action
vii. Limited promise of controlled stress exposure
viii. The financial history of coral tourism
ix. How coral restoration has become adaptive management
x. A method for removing algae from reefs

18. Paragraph F

i. Why local communities may misunderstand restoration
ii. Heat stress and the breakdown of a biological partnership
iii. The need to measure more than planting numbers
iv. A comparison of nursery environments
v. Choosing coral material for future conditions
vi. Why restoration can replace climate action
vii. Limited promise of controlled stress exposure
viii. The financial history of coral tourism
ix. How coral restoration has become adaptive management
x. A method for removing algae from reefs

19. Paragraph G

i. Why local communities may misunderstand restoration
ii. Heat stress and the breakdown of a biological partnership
iii. The need to measure more than planting numbers
iv. A comparison of nursery environments
v. Choosing coral material for future conditions
vi. Why restoration can replace climate action
vii. Limited promise of controlled stress exposure
viii. The financial history of coral tourism
ix. How coral restoration has become adaptive management
x. A method for removing algae from reefs

Summary Completion

Questions 20-23

Complete the summary below.

Choose ONE WORD ONLY from the passage for each answer.

20. Restoration projects increasingly consider coral 20. __________ when choosing parent colonies. Some corals are grown in land-based tanks where temperature and water chemistry can be 21. __________. Assisted conditioning exposes corals to limited 22. __________ before outplanting, but heat tolerance is only one element of reef 23. __________.

21. Restoration projects increasingly consider coral 20. __________ when choosing parent colonies. Some corals are grown in land-based tanks where temperature and water chemistry can be 21. __________. Assisted conditioning exposes corals to limited 22. __________ before outplanting, but heat tolerance is only one element of reef 23. __________.

22. Restoration projects increasingly consider coral 20. __________ when choosing parent colonies. Some corals are grown in land-based tanks where temperature and water chemistry can be 21. __________. Assisted conditioning exposes corals to limited 22. __________ before outplanting, but heat tolerance is only one element of reef 23. __________.

23. Restoration projects increasingly consider coral 20. __________ when choosing parent colonies. Some corals are grown in land-based tanks where temperature and water chemistry can be 21. __________. Assisted conditioning exposes corals to limited 22. __________ before outplanting, but heat tolerance is only one element of reef 23. __________.

Multiple Choice

Questions 24-26

Choose the correct letter, A, B, C or D.

24. What is the writer's main point about satellite heat-stress monitoring?

25. What does the passage suggest about land-based coral nurseries?

26. According to the writer, how should restoration success be judged?

Passage 3

Open Peer Review and the Question of Trust

An academic IELTS passage on open peer review and the question of trust, opening with peer review is often described as the mechanism by which scholarly communities protect the quality of research.

A.A. Peer review is often described as the mechanism by which scholarly communities protect the quality of research. In its conventional form, an editor sends a manuscript to specialists who assess its methods, argument and contribution before publication. The process is usually confidential: readers see the final article but not the exchanges that shaped it. This secrecy has advantages. It may allow reviewers to be frank, protect unpublished ideas and reduce pressure from powerful authors. Yet it also means that readers must trust a process they cannot inspect. As debates about research credibility have intensified, that hidden quality control has begun to look less secure.

B.B. Open peer review is not a single method. In some journals, reviewer reports are published but reviewer names remain hidden. In others, reviewers sign their reports, author responses are made public, or a manuscript is discussed openly before formal acceptance. Preprint platforms and conference systems may also make comments visible to wider communities. These differences matter because the phrase "open review" can refer to openness of identities, openness of reports, openness of participation or some combination of all three. A policy that publishes anonymous reports raises different ethical questions from one that requires signed criticism.

C.C. Supporters argue that open review increases accountability. If reports are visible, reviewers may give fuller reasons for their judgements and avoid careless dismissal. Authors can demonstrate how they responded to criticism, while readers can distinguish between a paper that survived serious challenge and one that received only routine approval. Published reports may also teach early-career researchers how evaluation works. In this view, transparency does not guarantee correctness, but it creates a record that can be inspected, compared and improved.

D.D. Critics respond that visibility can change behaviour in less desirable ways. Reviewers may soften legitimate criticism when they know their words or identities will be public. Junior scholars may hesitate to challenge senior figures, and researchers in small fields may worry that signed reviews will damage future collaborations. Open commenting can also amplify social inequalities if well-connected authors attract more sympathetic attention or if controversial subjects receive performative criticism rather than careful evaluation. Transparency, by itself, does not remove power relations; it may simply move them into a more visible space.

E.E. The strongest case for openness may therefore be procedural rather than moral. Readers do not need every reviewer to be named in order to benefit from seeing the grounds on which editorial decisions were made. A report can reveal whether reviewers checked the logic of the methods, requested clearer data presentation or raised concerns that remain unresolved. Similarly, publication of author responses can show whether changes were substantive or cosmetic. The value lies in making the route to publication traceable, not in assuming that publicity automatically produces better judgement.

F.F. However, traceability has limits. A published report is still only a document written within constraints of time, expertise and available evidence. Reviewers rarely reanalyse raw data from the beginning, and they may miss errors that later replication or re-use of data exposes. Open review can make weaknesses in the review process visible, but it cannot transform peer review into a full audit of every claim. Treating it as such would replace one form of overconfidence with another.

G.G. Some journals have adopted hybrid systems to balance these concerns. They may publish reports only after acceptance, allow reviewers to choose whether to sign, or keep identities confidential while making editorial histories available. Such compromises recognise that accountability and candour can conflict. The appropriate balance may vary by discipline: a clinical trial, a theoretical paper and a politically sensitive social-science study may not face the same risks. A uniform policy could therefore solve one problem while creating another. The point is not that each field deserves an exception whenever scrutiny feels uncomfortable, but that disclosure has consequences which must be anticipated. A transparent report on a mathematical proof, for example, exposes a different kind of professional risk from a signed review of research involving a contested public-health intervention.

H.H. A further difficulty is that openness can be mistaken for participation. Allowing wider comment on a manuscript may improve error detection when knowledgeable readers engage seriously, but it may also produce uneven attention. Highly visible topics can receive abundant discussion, while careful but unfashionable work attracts little response. Public discussion can therefore supplement editorial review, but it cannot be treated as a neutral measure of importance. A quiet paper may be rigorous, and a noisy debate may reflect controversy more than quality.

I.I. The debate over open peer review reveals a broader point about trust in scholarship. Trust does not come simply from hiding expert judgement, nor from exposing every stage of it. It depends on whether a community can show that its procedures are coherent, fair and responsive to criticism. Open review is valuable when it turns peer review from an invisible certificate into evidence that can itself be evaluated. It is less valuable when it is used as a slogan, as if transparency alone could settle questions of quality. The future of peer review may not be fully open or fully closed, but more explicit about what kind of trust each model asks readers to place in it.

Yes/No/Not Given

Questions 27-31

Do the following statements agree with the claims of the writer in Reading Passage 3?

Write

YES if the statement agrees with the claims of the writer

NO if the statement contradicts the claims of the writer

NOT GIVEN if it is impossible to say what the writer thinks about this

27. Confidential peer review has some defensible purposes.

28. All forms of open peer review disclose reviewer identities.

29. Publishing reviewer reports may help readers judge the seriousness of the review process.

30. Transparency alone removes power inequalities from peer review.

31. Open peer review should be legally required for every academic journal.

Matching Sentence Endings

Questions 32-36

Complete each sentence with the correct ending, A-G, below.

32. Publishing author responses can help readers see whether revisions were

33. Reviewers may become less direct if they know their comments will be

34. Hybrid peer-review models attempt to balance

35. Open review can reveal weaknesses in peer review, but it cannot

36. The writer suggests that future trust may depend on making review procedures

A. accountability with the need for honest criticism.
B. available only to the handling editor.
C. more explicit about the kind of confidence they ask readers to place in them.
D. public or attached to their names.
E. substitute for a complete audit of every research claim.
F. substantial rather than merely cosmetic.
G. decided by popularity among online readers.

Multiple Choice

Questions 37-40

Choose the correct letter, A, B, C or D.

37. In paragraph B, why does the writer describe several forms of open review?

38. What is the main idea of paragraph E?

39. What caution does paragraph F give about published review reports?

40. What is the writer's overall position on open peer review?