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科學(xué)家在英威爾士發(fā)現(xiàn)最早野火證據(jù) Earliest evidence of wildfire discovered

2022-08-01 00:31

來(lái)源:BBC

作者:

媒體英語(yǔ)

Earliest evidence of wildfire discovered 科學(xué)家在英威爾士發(fā)現(xiàn)最早野火證據(jù)

考古學(xué)家在英國(guó)威爾士發(fā)現(xiàn)了有記錄以來(lái)最早的野火證據(jù)。這個(gè)證據(jù)以燒焦殘余物的形式存在于極為古老的泥巖中。

Go back to what's known as the Silurian Period and Earth looked very different from today. What is now the UK, would've been south of the Equator. A few pioneering plants had begun to evolve, but nothing containing wood; no trees, no shrubs.

回到志留紀(jì),那時(shí)的地球看起來(lái)與如今大不相同?,F(xiàn)在的英國(guó)當(dāng)時(shí)應(yīng)位于赤道以南。一些先鋒植物已經(jīng)開(kāi)始進(jìn)化,但沒(méi)有一種植物含有木頭,也沒(méi)有樹(shù)木和灌木。

However, according to this new evidence, pulled up in mudstones from under Rumney (in Wales), there was still plenty of fuel, which could have started a wildfire, in the form of giant mushrooms, called Prototaxites. All that remains of these strange organisms now, is fragments of charcoal.

然而,據(jù)這個(gè)從威爾士拉姆尼地底泥巖中鉆取出的新證據(jù)顯示,那個(gè)時(shí)期仍有大量燃料可能會(huì)引發(fā)野火,作燃料的是一種被稱作原杉藻的巨型蘑菇?,F(xiàn)在,這些奇怪的生物體只剩下了炭碎片了。

Ian Glasspool, a palaeobotanist from Colby College in the US, says the 430-million-year-old Welsh charcoal, pushes back the earliest known evidence of a wildfire by 10 million years.

美國(guó)科爾比學(xué)院的古植物學(xué)家伊恩·格拉斯普爾說(shuō),這些在威爾士發(fā)現(xiàn)的距今4.3億年的炭碎片將已知最早的野火證據(jù)提早了1000萬(wàn)年。

詞匯表

the Silurian Period 志留紀(jì)
the Equator 赤道
mudstones 泥巖
fuel 燃料
wildfire 野火
organisms 生物體,有機(jī)體
charcoal 炭

閱讀理解:請(qǐng)?jiān)谧x完上文后,回答下列問(wèn)題。

1. What plants containing wood evolved during the Silurian Period?

2. According to new evidence, which organisms could have fuelled wildfires during that period?

3. What evidence is there today of the organisms that once fuelled wildfires?

4. How much earlier does this new evidence show that wildfires existed than previously thought?

答案  

1. What plants containing wood evolved during the Silurian Period?
A few pioneering plants had begun to evolve, but nothing containing wood.

2. According to new evidence, which organisms could have fuelled wildfires during that period?
During that period, there was still plenty of fuel, which could have started a wildfire, in the form of giant mushrooms, called Prototaxites.

3. What evidence is there today of the organisms that once fuelled wildfires?
All that remains of these strange organisms now, is fragments of charcoal.

4. How much earlier does this new evidence show that wildfires existed than previously thought?
Ian Glasspool says the 430-million-year-old Welsh charcoal, pushes back the earliest known evidence of a wildfire by 10 million years. 

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