Prática de Shadowing: 2014 Three Minute Thesis winning presentation by Emily Johnston - Aprenda a falar inglês com vídeo

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Our third finalist is Emily Johnston from the School of Pharmacy and Medical Sciences.

Her presentation title is Mosquito Research: Saving Lives with Pantyhose and Paperclips.

Thank you.

- Thank you.

I came to Australia to study the deadliest animal in the world.

Now there may be some Australian audience members thinking, "Ruth!

Science has finally recognized the importance of the drop bears.

But I'm not studying drop bears, because around the world, by transmitting diseases like malaria and dengue fever, Mosquitoes kill more than a million people every year,

making them the deadliest animal on the planet.

Now in Australia, the most common mosquito -borne disease is Ross River virus, and it occurs at high rates in some areas but not others.

My question is why?

What is it about certain areas that makes them breed disease?

If we can understand the environmental factors that contribute to disease transmission, then we can alter the environment or target our control efforts prevent human infections.

But to answer that question, I had to find out where the infected mosquitoes were in South Australia.

And traditionally, testing mosquitoes for virus has always been difficult.

So I used a new technique.

It takes these cards, which are embedded with virus -preserving chemicals, and coats them in honey.

Mosquitoes will come to feed on the honey, and in the process, spit virus onto the card, where it can later be detected.

Now, no one had ever used this technique in a broad -scale virus survey before, so I had to adapt it.

I developed new traps.

and set them at over 100 field sites across South Australia.

and I captured over 20 ,000 hungry mosquitoes

and let them feed on the card for a week before testing the cards for a virus.

Now you may not think that these traps look very impressive, But science doesn't have to be beautiful.

It has to be effective.

And these traps are proving to be our most sensitive method of detecting infected mosquitoes.

I found three types of infection.

Ross River virus, Barma Forest virus, and Stratford virus, which has never before been found in South Australia.

I now have the virus data I need to conduct my analysis.

and I'm collecting publicly available data about the environment surrounding my traps.

like the density of human housing, the biodiversity of mammals, and the ratio of green space to buildings.

to see if any of those environmental factors can link These virus hotspots that I've shown here, But the most exciting part of my research so far has been the success of this method.

Public health officials in Victoria, Queensland, and Western Australia have been in contact with us about implementing this technique for their surveillance next year.

And I developed these traps in a tight budget.

I used recycled milk cartons, pantyhose, and paperclips to make the traps.

Each trap costs less than a dollar and can be reused for the whole season.

That was important to me because the majority of mosquito -borne disease risk happens in economically impoverished countries.

In India, for example, where about a quarter of the population lives on a dollar a day, There are 33 million cases of dengue infection every year,

With my low budget virus surveillance and spatial analysis method, I can help any country, regardless of resources, find out where their deadliest animals occur,

why they're there, and how we can stop them from infecting humans.

Thanks.

Thank you.

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Vocabulário e dicas de fala para esta lição

Este vídeo tem 42 frases e 576 palavras para praticar shadowing. A fala dura 3:09. O falante fala rápido, cerca de 183 palavras por minuto, então espere sons ligados e reduzidos. Apenas 77% das palavras estão entre as 3.000 mais comuns do inglês, por isso o vocabulário é exigente.

Vocabulário principal deste vídeo

15 palavras menos comuns do vídeo, com pronúncia e significado:

virus /ˈvaɪ.ɹəs/ (substantivo) — vírus. A submicroscopic, non-cellular structure that consists of a core of DNA or RNA surrounded by a protein coat, that requires a living host cell to replicate, and…
mosquito /məsˈki.toʊ/ (substantivo) — mosquito, melga. A small flying insect of the family Culicidae, the females of which bite humans and animals and suck blood, leaving an itching bump on the skin, and sometimes…
trap /tɹæp/ (substantivo) — armadilha, arapuca. A machine or other device designed to catch (and sometimes kill) animals, either by holding them in a container, or by catching hold of part of the body.
technique /tɛkˈniːk/ (substantivo) — técnica. The practical aspects of a given art, occupation etc.; formal requirements.
infection /ɪnˈfɛkʃən/ (substantivo) — infecção, infeccionamento. The act or process of infecting.
occur /əˈkɜː/ (verbo) — ocorrer, acontecer. To happen or take place.
honey /ˈhʌni/ (substantivo) — mel. A sweet, viscous, gold-colored fluid produced from plant nectar by bees, and often consumed by humans.
surveillance /sɚˈveɪ.ləns/ (substantivo) — vigilância. Close observation of an individual or group; person or persons under suspicion.
detect /dɪˈtɛkt/ (verbo) — detectar, detetar. To discover or find by careful search, examination, or probing.
impressive /ɪmˈpɹɛsɪv/ (adjetivo) — impressionante. Making, or tending to make, a positive impression; having power to impress.
sensitive /ˈsɛn.sɪt.ɪv/ (adjetivo) — sensitivo. Having the faculty of sensation; pertaining to the senses.
hungry /ˈhʌŋ.ɡɹi/ (adjetivo) — faminto, com fome. Affected by hunger; having the physical need for food.
capture /ˈkæp.(t)ʃɚ/ (verbo) — capturar. To take control of; to seize by force or stratagem.
resource /ɹɪˈzɔːs/ (substantivo) — recurso, expediente. Something that one uses to achieve an objective, e.g. raw materials or personnel.
collect /ˈkɑlɪkt/ (verbo) — juntar, reunir. To gather together; amass.

Phrasal verbs que você vai ouvir

find out (verbo) — descobrir. To discover, as by asking or investigating.
live on (verbo) — viver de. To endure.

Pronúncia para ficar de olho

O falante usa 5 contrações e formas reduzidas, como I'm, doesn't, I've. Diga-as na forma curta, do jeito que você ouve.

Os sons de “sh” e “zh”: infection /ɪnˈfɛkʃən/, capture /ˈkæp.(t)ʃɚ/, ratio /ˈɹeɪ.ʃoʊ/, transmission /tɹænsˈmɪʃən/, presentation /ˌpɹɛzn̩ˈteɪʃn̩/
Palavras longas — acerte a sílaba tônica: traditionally /tɹəˈdɪʃ.ə.nə.li/, economically /ˌiː.kəˈnɒm.ɪ.kli/, malaria /məˈlɛəɹi.ə/, biodiversity /ˌbaɪoʊdəˈvɚsəti/, impoverish /ɪmˈpɒv(ə)ɹɪʃ/

Como praticar com este vídeo

Ouça o vídeo inteiro uma vez sem falar e anote as palavras que você não conhece.
Comece na velocidade 0,75×, faça shadowing frase por frase e volte à velocidade normal quando ficar fácil.
Grave a sua voz e compare com o original, prestando atenção a palavras como virus, mosquito, trap.

Gramática neste vídeo

As estruturas que o falante mais usa, com as palavras exatas do vídeo:

Estrutura	No vídeo
Present perfect have/has + particípio passado — uma ação passada que ainda importa agora	has finally recognized · has always been · I've shown
Voz passiva be + particípio passado — o foco está no que acontece, não em quem faz	are embedded · be detected · been found
Orações relativas who / which + oração — informação extra sobre uma pessoa ou coisa	cards, which are · virus, which has

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.

Técnica de shadowing: leia o guia completo passo a passo →

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