Pratique du Shadowing: IELTS listening part 3 Product development presentation: mosquito net - Apprendre l'anglais à l'oral avec la vidéo

Création de la leçon...
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Part 3.
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You will hear a business studies student called Edward talking to his tutor about some research he is doing on product development.
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First, you have some time to look at questions 21 to 25.
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Now listen carefully and answer questions 21 to 25.
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Hello, Edward.
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Sit down.
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Thanks.
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I need some advice on my presentation about product development.
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Right.
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Have you decided what to focus on?
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Yes.
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The product I've chosen is a particular type of mosquito net.
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Any reason for choosing that?
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Hmm.
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I spent last summer travelling round Africa with a friend.
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He's studying medicine, so when we were in a region where mosquitoes cause malaria, we visited a medical centre.
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I chatted to an administrator while my friend talked to one of the doctors,
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and I found out they've had far fewer cases of malaria since these mosquito nets became available locally.
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That made me interested in them.
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Hmm, OK.
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Mosquito nets have quite a long history, don't they?
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I believe they'd been used in Japan for centuries.
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That's right.
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Though apparently Queen Cleopatra slept under one in ancient Egypt.
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That was probably where they were invented.
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And much later nets were used in China, so perhaps they were invented there independently.
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Originally they were made of silk, but later cotton was used, and nowadays they're mainly synthetic.
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It wasn't until the middle of the 20th century that they developed nets treated with insecticides for use by the military, and that was a major step forward.
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They used an insecticide called DDT, but it was later found that this could be harmful to people as well as mosquitoes.
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Is that still a problem with modern nets?
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Oh, no. The chemicals used nowadays are safe, even if people sleep under them every night.
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And the nets work, and they're odour-free.
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But they have to be treated fairly often with the chemical, which the owners need to do themselves.
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Hmm.
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Presumably distribution of the chemical can be a problem in remote areas?
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I mean, people may not be able to get hold of it easily.
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That's right.
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Hmm.
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OK, tell me about this net you're going to talk about.
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Well, the brand name is Olliset, and the product was invented by a Japanese company.
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These nets are an improvement on the alternatives because the insecticide is contained inside the fibre and released gradually.
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It's not coated on the outside as with ordinary nets.
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So the chemicals don't have to be replaced?
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Right.
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And Oli-set nets are also tougher and don't tear as easily.
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They give protection for at least five years compared with a year or two for other nets.
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Well, it sounds interesting.
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But for your seminar presentation, will you provide the bigger picture as well?
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Yes.
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It'll be a case study of product development.
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Before you hear the rest of the discussion, you have some time to look at questions 26 to 30.
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Now listen and answer questions 26 to 30.
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I thought I'd introduce my presentation by describing the background to the new product, the general context.
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You mean the business context?
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Where the investment's coming from and that sort of thing?
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Well, I was thinking I'd talk first about insect-borne diseases, particularly malaria
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and why there's such an urgent need for new ways of fighting it.
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Some people might not know much about it.
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Yes, that's a good idea.
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I've got some statistics about the numbers of people worldwide who get the disease each year.
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I thought I'd show those.
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They're quite staggering.
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I can imagine.
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It's one of the world's biggest health problems, after all.
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It'd also be useful if you could find some statistical information on how malaria affects countries' economic output and present that too.
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OK, I'm sure I can find something.
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After that, I'll talk about mosquito nets.
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First, the historical development, just briefly, and then I'll introduce the Ollyset mosquito net.
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Yes, keep it simple.
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You could just present a bulleted list of its characteristics, the things that make it different from other types of net, and talk that through.
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Right.
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Then I thought I'd outline the production process.
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Fine.
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Should I give some information about where the money for the project has come from?
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There are lots of government and private sponsors.
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Definitely.
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That's a very important aspect of any product development.
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Where are the nets being manufactured, by the way?
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Oh, over half are made in Tanzania by a company called A-Z.
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They got an interest-free loan to buy in the necessary machinery.
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Well, I'd say a bit about the company profile as well, and then present figures about numbers of staff and the kinds of people they're employing on the Ollyset project,
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if you can find the details.
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Hmm, OK.
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I haven't included any information about marketing.
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I've got a lot of notes about it, but I'm not sure how to present them.
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I wouldn't mention that if I were you.
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You've only got a short time for your presentation and you've got quite a lot of material here already.
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But you should provide some figures about output.
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Have you found out from the company's website how many nets they actually produce?
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Yes, it's over 30 million a year.
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Right.
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Then I'm not sure how to finish off.
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What do you think about including something on potential...
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That is the end of part three.
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You now have 30 seconds to check your answers to part three.
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Thank you.
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Vocabulaire et conseils d’expression pour cette leçon

Cette leçon d’expression orale de niveau B2 s’appuie sur la vidéo « IELTS listening part 3 Product development presentation: mosquito net ». Les mots qui reviennent le plus souvent : net, product, mosquito, malaria, presentation. Cette vidéo contient 96 phrases et 907 mots à répéter en shadowing. La partie parlée dure 6:52. Le locuteur parle à un rythme régulier d’environ 132 mots par minute, confortable pour le shadowing. 83 % des mots font partie des 3 000 mots les plus courants en anglais ; le reste mérite d’être vu avant de commencer.

Vocabulaire clé de cette vidéo

Les 15 mots les plus avancés de la vidéo, avec leur prononciation et leur sens :

MotPrononciationSens
mosquito nom/məsˈki.toʊ/moustique, maringouin
malaria nom/məˈlɛəɹi.ə/paludisme, malaria
insecticide nom/ɪnˈsɛk.təˌsaɪd/insecticide
invent verbe/ɪnˈvɛnt/inventer
nowadays adverbe/ˈnaʊ.ə.deɪz/actuellement, de nos jours
stagger verbe/ˈstæɡɚ/tituber
tutor nom/ˈtjuːtəː/tuteur
fibre nom/ˈfaɪ.bə(ɹ)/fibre
insect nom/ˈɪn.sɛkt/insecte
seminar nom/ˈsɛmɪnɑɹ/séminaire
outline nom/ˈaʊtlaɪn/contour
synthetic adjectif/sɪnˈθɛtɪk/synthétique
employ verbe/ɪmˈplɔɪ/employer, embaucher
harmful adjectif/ˈhɑɹmfl̩/dangereux, nuisible
characteristic nom/ˌkæɹ(ə)ktəˈɹɪstɪk/caractéristique

Les verbes à particule que vous entendrez

MotSens
find out verbedécouvrir, savoir
finish off verbeachever
sit down verbes'asseoir

Des phrases à répéter

Des phrases courtes et complètes de la vidéo, à réutiliser dans la conversation de tous les jours :

  • Have you decided what to focus on?
  • Mosquito nets have quite a long history, don't they?
  • You mean the business context?
  • I thought I'd show those.
  • After that, I'll talk about mosquito nets.

La grammaire de cette vidéo

Les structures que le locuteur utilise le plus, avec les mots exacts de la vidéo :

StructureDans la vidéo
Voix passive be + participe passé — l’accent est mis sur ce qui arrive, pas sur qui le faitwere invented · were made · be treated
Present perfect have/has + participe passé — une action passée qui compte encore maintenantI've chosen · has come · haven't included

Prononciation à surveiller

Le locuteur utilise 30 contractions et formes réduites, comme I'd, they're, don't. Prononcez-les sous leur forme courte, telles que vous les entendez.

  • Mots longs — placez bien l’accent: malaria /məˈlɛəɹi.ə/, insecticide /ɪnˈsɛk.təˌsaɪd/, characteristic /ˌkæɹ(ə)ktəˈɹɪstɪk/, machinery /məˈʃiːnəɹi/, presumably /pɹɪˈzuːməbli/

Les sons difficiles pour les francophones :

  • /r/ anglais — langue recourbée, sans frotter la gorge: malaria /məˈlɛəɹi.ə/, fibre /ˈfaɪ.bə(ɹ)/, seminar /ˈsɛmɪnɑɹ/, harmful /ˈhɑɹmfl̩/, characteristic /ˌkæɹ(ə)ktəˈɹɪstɪk/

Comment s’entraîner avec cette vidéo

  1. Écoutez la vidéo en entier une fois sans parler et notez les mots que vous ne connaissez pas.
  2. Répétez phrase par phrase à vitesse normale, en reprenant chacune jusqu’à ce que votre rythme corresponde à celui du locuteur.
  3. Enregistrez-vous et comparez avec l’original, en faisant attention à des mots comme mosquito, malaria, insecticide.

Qu'est-ce que la technique du Shadowing ?

Le Shadowing est une technique d'apprentissage des langues fondée sur la science, développée à l'origine pour la formation des interprètes professionnels. Le principe est simple mais puissant : vous écoutez de l'anglais natif et le répétez immédiatement à voix haute — comme une ombre suivant le locuteur avec un décalage de 1 à 2 secondes. Les recherches montrent une amélioration significative de la précision de la prononciation, de l'intonation, du rythme, des liaisons, de la compréhension orale et de la fluidité.

Technique du shadowing : lire le guide complet étape par étape →