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IELTS Preparation Series 1, Episode 12: Carbon Cycle


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Xem lời thoại bên dưới:

0:14

Hello, I'm Margot Politis. Welcome again to Study English, IELTS preparation.

0:20

Today, we're going to look at cycles, at phrasal verbs, and then we'll finish with a bit of

0:25

punctuation.

0:27

But now, here's a man who is a microbiologist and a mushroom grower.

0:33

He's talking about mushrooms, and the part they play in the carbon cycle.

0:37

They occur naturally in the forests as wood degrading fungi. That's their job. When trees

0:43

die, they grow on the tree. They break down the lignin and the cellulose, which is the

0:48

most resistant form of carbon, and they break it down, produce mushrooms and, in turn, you

0:55

end up with organic matter going back into the soil, and so the carbon cycle in the forest

1:00

goes on.

1:00

The speaker, Noel Arrold, is talking about how mushrooms grow naturally.

1:09

They are an important part of the carbon cycle, but what is a cycle?

1:15

A cycle is a process that is repeated over and over. It goes around and around.

1:22

But how do we know this from listening to Noel?

1:25

When trees die, they grow on the tree. They break down the lignin and the cellulose, which

1:31

is the most resistant form of carbon, and they break it down, produce mushrooms and,

1:37

in turn, you end up with organic matter going back into the soil, and so the carbon cycle

1:42

in the forest goes on.

1:45

He says: and so the carbon cycle in the forest goes

1:49

on.

1:50