Prática de Shadowing: Science experiment for Year 12 students: Đề thi IELTS LISTENING (actual test) - Aprenda a falar inglês com vídeo
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Part 3 You will hear a trainee science teacher called Claire talking about her practical teaching work to another trainee called Jake.
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First, you have some time to look at questions 21 to 25.
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Thank you.
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questions 21 to 25.
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Hi, Jake.
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How are you getting on with the practical teaching?
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It's harder than I expected, but I've got some great classes.
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How about you?
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Not brilliant.
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I'm really struggling with my Year 12 science class.
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Are they hard to control?
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Well, I don't have discipline problems as such.
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It's just that they don't seem to think
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that science has anything to do with their lives it's depressing they listen to what i say
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and i gave them a test last week and the results weren't too bad but there's no real engagement right
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and as part of my teaching practice i have to design
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an experiment for them to do i was wondering about something
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on the children's diets you know asking them to record what they eat and maybe linking it to their state of health?
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Hmm, let's think.
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So your methodology would involve the children recording what they eat,
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okay, but you'd also need to have access to the children's medical records, and I don't think people would be happy about that.
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Confidentiality would be an issue.
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If you could get the right data, the conclusions might be significant, but I suspect it's not going to be easy.
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Right.
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Have you thought about doing an experiment using animals?
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Wouldn't that be upsetting for the children?
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Well, the animals don't have to be harmed in any way.
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It could just be an experiment where they're given a certain diet and the effects are observed.
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Would I have to get permission to use these animals?
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Yes.
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You'd have to submit an outline of the experiment and fill in a form, but it's quite straightforward.
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But if we found out that, say, a particular diet affects the health of animals, the same thing wouldn't necessarily be true for people, would it?
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No, that's true.
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But the findings for any experiment are going to be limited.
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It's inevitable.
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I suppose so.
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So what animals could I use to investigate the effects of diet?
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Mice?
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Yes.
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You'd need experimental mice, ones that have been specially bred for experiments.
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OK, so what will your experiment be investigating exactly?
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Well, something to do with nutrition.
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So maybe we could look at food supplements, things like extra iron and extra protein and their impact on health.
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That might be rather broad.
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Maybe just look at the effects of one supplement, like sugar, on the health of the mice.
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In fact, maybe the focus could be on whether mice can control their own diet.
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So what happens when they have access to more sugar that they don't really need?
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Exactly.
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Do they eat it or do they decide to leave it?
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Great.
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Then later on you could do a follow-up experiment adding another variable.
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Like you could give some of the mice the chance to be more active, running on a wheel or something, and the others just sit around and don't do much.
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Or I could repeat the experiment, but change the type of food I provided, or use mice with a different genetic structure.
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But I think your idea would be more interesting.
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I might think about that some more.
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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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So, can I talk through a possible procedure for the experiment where mice are given a sugar supplement?
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Sure.
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I did a similar experiment in college, actually.
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Great.
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So, how many mice would I need?
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I'd say about 12, and all young ones, not a mixture of old and young.
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OK.
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And I'd need two groups of equal sizes, so six in each group.
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And how would I tell them apart?
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I suppose I could put some sort of tag on one group or just mark them in some way.
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You could use food colouring.
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That wouldn't hurt them.
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Perfect.
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Then each group would go into a separate cage and one group, let's call them group A, would be the control group.
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So they'd just have ordinary mouse food.
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I suppose you can buy that?
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Yes, it comes in dry pellets.
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And the other group would have the same as the first group, but they'd also have the extra sugar.
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Would you just give them straight sugar?
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It might be better to give them something like cereal with it.
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Hmm.
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Then you'd need to weigh the mice, I should think, once a week.
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And you'd need an electronic balance.
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But we can't hold them on the balance, or it'd affect the reading.
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Exactly.
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so you need something called a weighing chamber to stop the mice from running away.
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It sounds complicated but actually you can just use a plastic box with holes in the top.
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OK.
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So once we've measured the weight gain of each mouse we
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can work out the average for each group as well as the standard deviation and then see where we go from there.
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That sounds cool.
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I think the students will enjoy it.
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Yes.
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One thing you must remember...
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Thank you.
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Thank you.
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Sobre Esta Lição
Nesta lição, os alunos terão a oportunidade de praticar habilidades de conversação em inglês ao ouvir uma conversa entre dois professores sobre experimentos científicos e seu impacto na educação. Através do diálogo, você irá aprimorar sua capacidade de compreender a linguagem utilizada em um ambiente acadêmico e aprender a articular suas próprias ideias sobre temas complexos, como nutrição e metodologia de ensino. Além disso, esta lição é ideal para quem deseja melhorar a pronúncia em inglês por meio de técnicas de shadow speech.
Vocabulário e Frases-Chave
- Practical teaching - ensino prático
- Engagement - envolvimento
- Experiment - experimento
- Confidentiality - confidencialidade
- Nutrition - nutrição
- Health - saúde
- Record - registrar
- Effects - efeitos
Dicas de Prática
Para maximizar os benefícios desta prática, sugere-se que você utilize técnicas de shadowing em inglês. Ouça o diálogo em um ritmo natural e tente repetir imediatamente após ouvir, imitando a entonação, velocidade e emoção dos falantes. Este método, conhecido como shadowspeaks, é eficaz para melhorar a pronúncia em inglês e para desenvolver fluência. Comece ouvindo uma parte curta da conversa, pause e repita. A velocidade da fala pode ser um pouco rápida, então não hesite em voltar e ouvir novamente as frases que você achar desafiadoras. Isso não apenas ajudará a melhorar sua pronúncia, mas também facilitará a assimilação do vocabulário em contexto. Pratique regularmente e observe como sua habilidade de conversação em inglês se desenvolve ao longo do tempo!
Gramática neste vídeo
As estruturas que o falante mais usa, com as palavras exatas do vídeo:
| Estrutura | No vídeo |
|---|---|
| Voz passiva be + particípio passado — o foco está no que acontece, não em quem faz | be harmed · are observed · have been specially bred |
| Present perfect have/has + particípio passado — uma ação passada que ainda importa agora | Have you thought · have been · we've measured |
O que é a Técnica de Shadowing?
Shadowing é uma técnica de aprendizado de idiomas com base científica, originalmente desenvolvida para o treinamento de intérpretes profissionais. O método é simples, mas poderoso: você ouve áudio em inglês nativo e repete imediatamente em voz alta — como uma sombra seguindo o falante com 1-2 segundos de atraso. Pesquisas mostram melhora significativa na precisão da pronúncia, entonação, ritmo, sons conectados, compreensão auditiva e fluência na fala.