IELTS 21 Academic Listening Test 2: Answers & Transcript

Sarah: Good morning, City Cycle Centre, Sarah speaking. How may I help you?

Mark: Oh, good morning, Sarah. My name’s Mark Davies – that’s D-A-V-I-E-S. I’m calling to enquire about the weekend bicycle maintenance course I saw advertised on your website, the 'Weekend Bike Fix' course, I think it was called.

Sarah: Ah yes, that's right, the 'Weekend Bike Fix'. It's one of our most popular courses, actually. What would you like to know about it, Mark?

Mark: Well, first, what level is it aimed at? I mean, I'm not a complete beginner, I can fix a puncture and adjust my seat, but I'm certainly no expert when it comes to the more technical stuff.

Sarah: Right, so the course is actually designed for what we call 'improvers'. That means it's suitable for beginners who have some very basic knowledge – like, as you say, changing a tyre – but it really aims to take you to the next level. We cover things like brake and gear adjustment, chain replacement, proper cleaning techniques, that sort of thing. Our instructors are fantastic, very patient.

Mark: Okay, 'improvers'. That sounds exactly right for me. I've always wanted to tackle my gears myself.

Sarah: Excellent. And are you looking for a specific date?

Mark: Just generally, what are the next courses running?

Sarah: Let me see... We had one scheduled for the 10th of July, but that one filled up very, very quickly. It's now completely full. The next available date we have is actually Saturday, the 24th of July. We do run them fairly regularly, usually every three weeks or so, but the July one is the very next one with places left.

Mark: Right, the 24th of July. And is it just a one-day course or over the whole weekend?

Sarah: It’s a full day course, yes, from 9 am right through to 5 pm. And it's held here at the City Cycle Centre, specifically in our dedicated workshop area, which we've named the 'Gear Room'. It’s fully equipped with professional stands and all the tools you could need.

Mark: The 'Gear Room', got it. Sounds quite professional.

Sarah: It is! We get great feedback on the facilities. What else can I tell you?

Mark: What about tools? Do I need to bring my own, or are they provided? I don’t have a full workshop setup at home.

Sarah: A very common question! We provide all the specialist tools you'll need for the session, like torque wrenches, chain whips, spoke keys – all the professional-grade stuff. However, we do ask participants to bring some general items that they might already have, or perhaps want to learn to use on their own bike. So, a set of cycling gloves, for comfort, and importantly, any spare parts they might want to work on. For instance, if you have an old chain, a worn cassette, or a brake cable you've taken off your bike, it's really helpful to bring those along to practice on. That way, you get hands-on experience with your specific parts.

Mark: Okay, so I should bring some spare parts. Makes sense.

Sarah: Exactly. It's all about practical application. Now, regarding what we cover specifically, we divide the day into two main sessions. The morning session focuses on general safety checks, correct wheel trueing – which is a tricky one – and detailed brake adjustment for both rim and disc brakes. Then, after a short break, the afternoon session moves onto drivetrain issues – so, that's thorough gear adjustment, cleaning and lubricating your chain, and basic fault finding for derailleurs. We also show you how to correctly set up your suspension, if your particular bike has it, which many modern mountain bikes do. It’s a very hands-on experience.

Mark: That's quite comprehensive. And the cost? How much is it?

Sarah: The course fee is £120 per person. That includes all the training materials, a comprehensive course manual that you can take home for reference, and light refreshments throughout the day – tea, coffee, biscuits. Just to be clear, lunch isn't provided, but there are plenty of excellent cafes nearby, or you can bring your own packed lunch, of course.

Mark: £120, okay. And that course manual sounds useful.

Sarah: It is. It summarises everything we cover. And how do I book a place, Mark?

Mark: You can book online through our website, or you can call us back with your card details. We do recommend booking sooner rather than later as places fill up quickly, especially for the summer dates.

Mark: Right, I'll probably book online then. Just need to check my calendar properly when I get home. One last thing, my phone number? It’s 07700 900567. Just in case you need it for anything before the course.

Sarah: Thank you, Mark. 07700 900567. Got that. Once you’ve successfully booked, you'll receive an automated confirmation email immediately, with all the essential details – including a map to the centre, a full list of what to expect on the day, and any pre-course reading we recommend. So you'll be fully prepared.

Mark: Perfect. Thanks very much for your help, Sarah, you've been very informative.

Sarah: You're very welcome, Mark. We look forward to seeing you on the 24th.

Halls Manager: Right, good morning everyone, and a warm welcome to your new home here at University Residences! My name is Sarah Jenkins, and I'm the Halls Manager for this block. I know you've had a busy few days settling in, so thanks for taking the time to come along today. My main aim this morning is to give you some practical information about our facilities, specifically focusing on laundry, recycling, and waste disposal. Getting these right is really important for a smooth and comfortable living environment for everyone.

Halls Manager: So, let's kick off with the laundry facilities. These are located on the ground floor, just past the main reception desk and before the common room. You can't miss it – it's well signposted. There's a bank of washing machines and tumble dryers, and it's a shared facility for everyone in this hall. Please keep it tidy for others.

Halls Manager: Now, how to use them. You'll need to purchase a laundry card from the machine next to the entrance of the laundry room itself. It's a cashless system, so you load credit onto the card using your debit or credit card, or you can actually download the 'UniWash' app onto your phone and pay directly through that. That's probably the most convenient option for most of you. The machines are available for use from 6 am until 11 pm daily – oh, sorry, my mistake, that’s 10 pm. So that’s six in the morning until ten at night. Please respect these hours, as the machines can be quite noisy.

Halls Manager: Each wash cycle costs £2.50, and drying costs £1.50 for a standard cycle. We ask that you remove your laundry promptly once it’s finished to allow others to use the machines. And a really important point: for fire safety reasons, please don't hang wet clothes in your rooms or corridors. There's a dedicated drying room next to the laundry if you don't want to use the tumble dryers. If you encounter any issues with a machine, there's a contact number displayed on the wall, or you can report it to reception.

Halls Manager: Moving on to recycling and waste – this is an area where we can all make a big difference. The university is really committed to sustainability, and we expect all residents to do their part. You'll find a small general waste bin and a mixed recycling bin in your kitchen areas. However, for larger volumes and specific items, you'll need to use the main facilities.

Halls Manager: Let's talk about the mixed recycling bins first. These are for paper, cardboard, plastic bottles, plastic containers – things like yoghurt pots – and metal cans, as well as glass bottles and jars. So, pretty much all your standard household recyclables can go in there. The main recycling points are located outside each block entrance and also just outside the dining hall. Please make sure items are reasonably clean – give them a quick rinse if they've had food in them. What absolutely *cannot* go into mixed recycling, however, is food waste, plastic bags – take those to a supermarket collection point – and polystyrene packaging. These items contaminate the whole batch and mean it all goes to landfill.

Halls Manager: For food waste, we have separate smaller, brown compost bins. You'll find these in your shared kitchenettes. We empty these daily, so please use them for all your food scraps – fruit and vegetable peelings, uneaten food, tea bags, coffee grounds, that sort of thing. This ensures it's properly composted and not just sent to landfill. Please don't put anything else in these bins, especially plastic bags, as they don't break down.

Halls Manager: Then we have general waste. This is for anything that can't be recycled or composted. You'll find large, black general waste bins located near the recycling points outside the building. These are emptied three times a week – on Monday, Tuesday, and Friday – sorry, Monday, Wednesday, and Friday. We had hoped to get them emptied every day, but that proved too costly. So, three times a week it is. Please ensure your waste is bagged and placed inside the bins, not left next to them. If a bin is full, please use another one or inform reception.

Halls Manager: Now, a quick word on special waste items. For batteries, small electrical items like old phone chargers, or light bulbs, we have a dedicated drop-off point at the main reception desk. Please do not put these in general waste or recycling, as they contain harmful chemicals. For larger items, such as broken chairs, old suitcases, or unwanted electronic equipment like a broken laptop, you must *not* just leave them in corridors or by the bins. You need to contact the main reception, and we will arrange for a special collection. There may be a small charge for some bulky items, but it's essential for safety and keeping the halls clear.

Halls Manager: So, to summarise: use the correct bins, keep areas tidy, and if in doubt, ask. Your cooperation is really appreciated in helping us maintain a clean, safe, and sustainable environment for everyone living here. If you have any immediate questions, I'll be available for a few minutes now, otherwise, please don't hesitate to pop down to reception at any time. Thank you.

Dr. Eleanor Vance: Right everyone, thank you for coming today. We're here to finalise the plans for our upcoming coastal erosion field trip. The main objective, as you know, is to observe and measure contemporary erosion processes first-hand, applying the theoretical knowledge we've gained in lectures.

Liam: Morning, Dr. Vance. Just to confirm, this is for our Coastal Geomorphology module, isn't it?

Dr. Eleanor Vance: That's right, Liam. It's a key practical component. So, first things first, let's nail down our field site. I've been considering two main options: Penhale Sands or Chapel Porth. Penhale is excellent for its extensive dune systems and evidence of longshore drift.

Chloe: I was thinking Chapel Porth might be better for cliffs, though. It’s got a reputation for dramatic erosion, hasn't it? Lots of recent activity there, apparently.

Dr. Eleanor Vance: You're spot on, Chloe. Chapel Porth really exemplifies active cliff erosion, with regular rockfalls and slumping. Penhale, while fascinating, leans more towards aeolian processes and sediment transport along the beach. Given our focus this term on *erosional landforms*, particularly cliffs, I think Chapel Porth offers the most direct and impactful learning experience for this particular trip. So, we'll go with Chapel Porth.

Liam: Okay, Chapel Porth it is. And what about equipment? I'm picturing a lot of technical gear.

Dr. Eleanor Vance: Well, we won't be taking a full research lab with us, Liam! But yes, some specialist items are necessary. Chloe, do you remember any from the preliminary lecture?

Chloe: Yes, I think you mentioned we'd need a tape measure for horizontal distances and maybe a clinometer for measuring cliff angles, for the erosion profiles? And clipboards, obviously.

Dr. Eleanor Vance: Absolutely correct, Chloe. A tape measure and clinometer are fundamental for our quantitative data collection. Beyond that, a GPS device is crucial for accurate location mapping of our measurement sites. We'll also provide waterproof notebooks and pencils, of course. Don't forget your cameras too, for photographic evidence.

Liam: Right. And what about safety? I know those cliffs can be pretty unstable. I heard about a big rockfall last month, actually.

Dr. Eleanor Vance: You're absolutely right to bring that up, Liam. Safety is our top priority. Everyone will be required to wear high-visibility vests at all times. And yes, if we're working directly at the base of the cliffs – which we will be for some measurements – hard hats are mandatory. We'll also have a comprehensive first-aid kit, and I'll be carrying a satellite phone for emergencies.

Chloe: And the tides? That's always a big factor on the coast. We don't want to get cut off.

Dr. Eleanor Vance: Crucial, Chloe. We'll have a copy of the tide tables and our fieldwork will be strictly scheduled around low tide periods only. We'll also need to monitor the weather forecast very closely. Heavy rainfall can significantly increase the risk of instability, so we'll postpone if the conditions are deemed unsafe, even if it's a slight drizzle. The forecast has to be absolutely clear.

Liam: And personal gear, I suppose proper footwear is essential?

Dr. Eleanor Vance: Indeed. Sturdy walking boots with good ankle support are an absolute must. No trainers or sandals, please! And waterproof trousers and jackets are highly recommended, even if the sun's shining. Coastal weather is notoriously unpredictable.

Chloe: How will we be organised into groups, Dr. Vance? And how many of us are going?

Dr. Eleanor Vance: We have 20 students signed up in total for the trip. I'll be dividing you into five groups of four. Each group will need to designate a leader, who will be responsible for ensuring all data is collected accurately and that safety protocols are strictly followed within their group.

Liam: And what specifically are we looking to collect? Is it just measurements of the cliffs?

Dr. Eleanor Vance: Not solely quantitative measurements, Liam. We'll be making detailed sketches, taking photographic evidence to support our observations, and also recording geological features – rock type, structural weaknesses, any signs of past weathering. The aim is to build a holistic picture of the current erosion processes.

Chloe: So, we're focusing on current, live erosion, rather than looking at historical trends, then?

Dr. Eleanor Vance: Precisely. The field trip itself is about *direct observation and contemporary data collection*. Historical context will be incorporated into your post-trip reports, drawing on academic sources and previous studies. But the fieldwork is about what's happening now.

Liam: Right, so a snapshot of the present-day erosion.

Dr. Eleanor Vance: Exactly. Now, before the trip, you'll each need to undertake some preparatory research on Chapel Porth itself – its specific geology, known erosion patterns, and any local hazards. This research will form part of your pre-trip assessment mark. It's crucial for understanding the site before we even get there.

Chloe: And transport? Are we meeting at the site, or is there a coach?

Dr. Eleanor Vance: We'll be taking a university mini-bus. It holds everyone comfortably and it's much easier for parking at the site, plus it keeps us together as a group. So, no individual travel is required or permitted.

Liam: What time are we meeting up?

Dr. Eleanor Vance: Good question, Liam. Originally, I thought 8 am would be fine, but considering the traffic and the need to get our tide-window maximised, we'll meet promptly at the campus car park at 7 am. That will give us ample time to get there, set up, and begin our fieldwork before the tide starts to turn. We should be back on campus by 5 pm at the very latest.

Chloe: Seven am, got it. Just to recap, the main objective is understanding current cliff erosion at Chapel Porth, and we're developing practical skills in the process?

Dr. Eleanor Vance: That's a perfect summary, Chloe. The development of *practical fieldwork methodology* and robust data collection skills is a primary learning outcome for this entire exercise. Any final questions for now?

Liam: I think I'm clear, Dr. Vance. Sounds like it'll be a really informative day.

Dr. Eleanor Vance: Excellent. I'll circulate the detailed itinerary, including a full risk assessment, via email by the end of the week. Please ensure you read it all thoroughly before our next session.

Dr. Eleanor Vance: Good morning, everyone. Today's lecture is on bioluminescence – that's the production of light by living organisms. It's a truly spectacular phenomenon, often associated with the mysteries of the deep sea, but found in many diverse environments. We'll explore where it's found, the underlying chemistry, and crucially, its evolutionary significance.

Dr. Eleanor Vance: So, where do we find bioluminescence? Well, surprisingly, it's not found in terrestrial plants, though many people think of glowing plants from science fiction! Instead, we primarily see it in marine environments – estimates suggest that over 90% of deep-sea organisms are bioluminescent. But it's also present in some fascinating land-dwelling creatures like fireflies, certain fungi, and even some bacteria.

Dr. Eleanor Vance: The vast majority of known bioluminescent species inhabit the ocean. And that makes sense, doesn't it? In the perpetual darkness of the deep ocean, light is a precious commodity. Think of the incredible anglerfish with its glowing lure, or many species of jellyfish and squid that put on dazzling displays. This ability has evolved independently many, many times across different lineages, highlighting its adaptive value.

Dr. Eleanor Vance: Now, let's delve into the fascinating chemistry behind this 'living light'. Unlike a light bulb, bioluminescence is often called 'cold light' because very little heat is generated. It's a chemiluminescent reaction, meaning light is produced through a chemical reaction without significant heat. The key players are generally two types of molecules: a light-emitting compound, which we call luciferin – that's L-U-C-I-F-E-R-I-N – and an enzyme, luciferase – L-U-C-I-F-E-R-A-S-E.

Dr. Eleanor Vance: In most cases, these two substances react together in the presence of oxygen, and sometimes other cofactors like ATP, to produce light. It's important to note that while the general principle is the same, the specific chemical structures of luciferin and luciferase can vary significantly between different species. For instance, the luciferin in a firefly is very different from the one found in a glowing bacterium. This diversity underscores the multiple evolutionary origins I mentioned earlier.

Dr. Eleanor Vance: So, why bother producing light? What's the evolutionary advantage? There are several main reasons. One primary purpose, particularly in the ocean, is camouflage. Many deep-sea animals use what's called 'counter-illumination'. They glow on their undersides to match the faint sunlight filtering down from the surface, effectively erasing their silhouette from the perspective of predators looking up from below. Without this, their dark bodies would cast a shadow, making them visible.

Dr. Eleanor Vance: Another crucial function is defence. Some organisms employ a 'startle' tactic, emitting a sudden flash of light to momentarily blind or confuse a predator, giving them time to escape. Others use a 'burglar alarm' strategy. Imagine a small planktonic creature being attacked; it might release a burst of light, attracting a larger predator that then targets the *original* attacker, not the prey. It's a clever, albeit risky, form of defence.

Dr. Eleanor Vance: Then there's communication and attraction. This is perhaps most famously exemplified by fireflies. Each species has a unique flash pattern – a sort of Morse code – allowing males and females to recognise and locate each other for mating. In the dark ocean, similar light signals can be used by fish to find mates or to school together.

Dr. Eleanor Vance: And finally, hunting. The classic example here is the anglerfish, which I mentioned earlier. It dangles a bioluminescent lure from its head, attracting unsuspecting prey right into its jaws. Some deep-sea squid also use light flashes to disorientate prey before capturing them. It's a highly effective predatory strategy in light-limited environments.

Dr. Eleanor Vance: Moving away from marine life briefly, let's consider fungi. We have over 70 species of bioluminescent fungi, often referred to as 'foxfire'. These fungi typically glow continuously, not in flashes. The precise purpose for this continuous glow isn't fully understood, but theories suggest it might deter herbivores, or more interestingly, attract insects to help disperse their spores.

Dr. Eleanor Vance: And what about bacteria? Many bacteria species are bioluminescent. They often live in symbiotic relationships with other organisms, such as the Hawaiian Bobtail Squid, where the bacteria colonise a special light organ in the squid, providing the light for camouflage in exchange for nutrients and a safe home. It's a win-win situation.

Dr. Eleanor Vance: So, from deep-sea dwellers to fireflies in our gardens, bioluminescence is a truly widespread and versatile adaptation. Understanding its mechanisms and functions not only illuminates the natural world but also holds promise for various applications, perhaps in medical imaging or as biosensors. It’s a field of research that continues to light up our scientific understanding.