Cambridge IELTS 15 · Listening · Test 4 · Part 3
Presentation About Refrigeration — IELTS Listening Answers
All 10 answers for Presentation About Refrigeration, Cambridge IELTS 15 Listening Test 4 Part 3, with the transcript evidence and an explanation for each.
← All Cambridge 15 Listening Test 4 answers
Presentation About Refrigeration answer key at a glance
Questions 21–30. Tap an answer to see the evidence.
What this part tests
This part is tested with One Choice (Q21–24). Each section below gives the strategy for that question type, the answers, and the sentence that proves them.
Questions 21–24: One Choice
Strategy: Read the question stem and predict the answer before looking at the options. Wrong options often repeat words from the audio while the correct one paraphrases them.
“But I didn’t realise that insulating the blocks with straw or sawdust meant they didn’t melt for months.”
B fits because straw or sawdust insulation meant the ice blocks 'didn't melt for months', which the speaker had not realised.
“Both the ice and the snow were then sold.”
A fits because the speaker says 'both the ice and the snow were then sold', so each product earned money.
“It’s hard to see how they can be stopped unfortunately.”
B fits since 'it's hard to see how they can be stopped unfortunately' — the speaker believes the problem cannot be controlled.
“So if you divide the cost by the number of years you can use a fridge, they’re not expensive, compared with some household appliances.”
A fits: dividing the cost by the fridge's years of use shows they are 'not expensive' compared with other appliances.
Learn the question types in this part
Frequently asked questions
Where does the Presentation About Refrigeration listening section come from?
It is Part 3 of Cambridge IELTS 15 Listening Test 4, and it covers Questions 21–30.
What question types appear in Presentation About Refrigeration?
The part is tested with One Choice. Each type is explained on this page, alongside the answers.
Are these reading answers reliable?
Every answer is paired with the sentence that proves it, so you can check each one against the passage yourself. Use the page after a timed attempt, not instead of one.
Cambridge IELTS is published by Cambridge University Press & Assessment. Band9Prep is not affiliated with Cambridge. This page is an independent study aid: it gives the answer key, the passage evidence and an explanation so you can review an attempt you have already made.