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Pre-Intermediate 2021-11-04    
Grand Canyon - One of the Nature's Wonders

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Ringling Brothers and Barnum & Bailey Circus is America's longest-running circus company.It began performances in the early eighteen nineties and calls itself "The Greatest Show on Earth." More than a...


British English 2021-11-04    
Welcome to the Anthropocene

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Welcome to the Anthropocene. Humans have changed the way the world works. Now they have to change the way they think about it, too. THE Earth is a big thing; if you divided it up evenly among its 7 ...


Intermediate 2021-11-03    
Chemistry in Art

Keywords:

Steve: Hi Kate, how are you? Wong: I am fine, Steve. How are you? Steve: Good, good. How was the trip? Wong: It was a good trip. I learned a lot, actually. Steve: So, there was a lot of di...


Video 2021-11-03    
How a Pathogenic E. coli Infection Begins

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So here's our bacterium here and behind it will be these long strands that are the bundle forming pillus. They're going to adhere to the microvilli, these wiener-like structures, this is what's on...


Pre-Intermediate 2021-11-02    
AIDS - The Family

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A young child sits by the roadside. Her small hands rest in the dry dirt. She lifts the grains and watches them fall through her fingers. In her mind she can hear her mother’s voice calling her. In he...


British English 2021-11-02    
Current Plans to Raise the Retirement Age are not Bold Enough

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70 Old Bust.Current plans to raise the retirement age are not bold enough.PUT aside the cruise brochures and let the garden retain that natural look for a few more years. Demography and declining inve...


法语 2021-11-01    
Nouveau - Neuf

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Ca y est c’est le Nouvel An ! C’est l’an neuf. On dit ça en effet le 1er janvier, lorsqu’on passe d’une année dans l’autre. Mais parle-t-on aussi bien de Nouvel An que d’an neuf ? Le deuxième adjec...


Intermediate 2021-11-01    
The Genetics of Longevity

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Let's talk about the genetics of longevity. Conventional wisdom always had it that ageing was a function of normal maintenance mechanisms going awry as you got older. Guarente: Well! I think there ...


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