1️⃣ 9.14 Listen to an extract from a radio interview and answer the questions.
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Why are optical illusions popular?
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Describe what the Wave is.
Answers 1 Optical illusions show us how our eyes and brain can work together and how we interpret the three-dimensional world in which we live.
2 The Wave is a sandstorm rock formation known for its colourful and rolling forms.
2️⃣ Read four comments A-D on a TV documentary about natural optical illusions. Which optical illusions and places are mentioned in the comments?
Answers A salt flats in Bolivia (Salar de Uyani) B underwater waterfall in Mauritius C Northern Lights in Iceland D mirages in Wadi Rum desert in southern Jordan
3️⃣ Read the comments again and match questions 1-4 with commenters A-D.
Which commenter ...
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☐ doesn’t agree with commenter B about how reliable the people speaking in the documentary were?
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☐ felt they didn’t learn anything new from the documentary?
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☐ doesn’t expect their partner to see a particular illusion?
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☐ has made a point of seeing natural illusions for themselves?
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☐ gave a reason for the documentary’s popularity?
Answers
1 D (I found some of their explanations a bit far-fetched. I mean, how much can we really know about these natural wonders?)
2 C (I’d already seen them numerous times. … I also felt that the elaborate explanations about how the illusions worked were a little patronising and treated the audience as if they were children.)
3 A (I’d love to go and see it for myself with my wife, but she can be quite reluctant to travel so far from home.)
4 B (As a fan of natural illusions, I’ve spent a good amount of time reading about them and visiting the ones that I’ve been able to get to.)
5 C (There was a lot of hype about this documentary in the media using words like ‘exciting’ and ‘revealing’, and so it’s really no surprise that the viewing figures showed that vast numbers of people watched it.)
4️⃣ Complete the sentences with the highlighted adjectives from the comments.
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The optical illusions raise some questions which have puzzled people for generations.
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The company is highly ______ and can always be trusted to provide quality service at a good price.
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I thought his theory was quite ______ and didn’t make any sense at all.
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They came up with an ______ plan to keep their Mum’s birthday party a secret from her.
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Jamal is quite sensible with his money and ______ to spend it on unnecessarily expensive items.
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This book I’m reading at the moment is really ______ and I can’t put it down for long!
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He thinks he knows everything and can be incredibly ______ when he talks to people.
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I thought this cake was going to be delicious, but it left me feeling quite ______. I wouldn’t choose it again.
Answers 1 intriguing 2 reputable 3 far-fetched 4 elaborate 5 reluctant 6 compelling 7 patronising 8 underwhelmed
5️⃣ Complete the collocations with the verbs from the box.
disregard have lay make open ridicule
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The company needs to ______ to rest the rumours about the new policies.
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People need to ______ about the value of further research into the issue.
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The police are planning to ______ an investigation into the reports.
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No one can ______ the possibility that the evidence was faked.
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It’s very rude to ______ someone’s ideas even if you disagree with them.
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The newspapers ______ detailed mention of the claims made by several witnesses in the case.
Answers 1 lay 2 have 3 open 4 disregard 5 ridicule 6 make
6️⃣ Choose the correct alternatives to complete the collocations with the verb raise.
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The investigation raised questions / discussions about the authenticity of the reports.
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Celebrities do a lot of work in raising knowledge / awareness of many world health issues.
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The teacher raised confusion / doubts about some of her students’ readiness to take the exam.
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The choice of recipient for the science award raised a few hairs / eyebrows as it was completely unexpected.
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The recent progress in developing new antibiotics has raised hopes / dreams that current medications will be replaced soon.
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The speaker had to raise his words / voice to be heard over the crowd.
Answers 1 questions 2 awareness 3 doubts 4 eyebrows 5 hopes 6 voice
7️⃣ SPEAKING In pairs, talk about ...
1. a time when you had to raise your voice recently.
2. something you would like to raise public awareness of.
Answers Students’ own answers