文字稿

最新研究稱，現(xiàn)代社會(huì)排放的二氧化碳不僅是全球氣候變暖的主要原因，更是增加了海洋的酸性，進(jìn)而威脅海洋生命?？茖W(xué)家研究了酸化海洋對(duì)不同生命階段的海洋生物的影響以及其對(duì)海洋食物鏈的影響。請(qǐng)聽報(bào)道。

CO2 emissions are warming the planet. They're also being soaked up by the oceans, and because CO2 is mildly acidic, that's turning sea water more acidic. Since the beginning of the industrial revolution, ocean acidity has increased by around a quarter.

This huge study concludes that some organisms may benefit from this change, but others will be harmed, and all life in the sea will be affected by the resulting shifts in the food web.

Baby cod appear highly sensitive to the changing ocean chemistry expected this century. The report projects that the number of cod growing to maturity will shrink to just a quarter of the current level.

The German-based research programme also indicates that changes brought about by acidification will be made worse by climate change pollution and coastal development.

詞匯表

soaked up （被）吸收
mildly 略微地
acidic 酸的，酸性的
acidity 酸度，酸性
quarter 四分之一
organisms 生物體；微生物
food web 食物網(wǎng)，食物鏈
cod 鱈魚
maturity 成熟期，成熟
acidification 酸化

測(cè)驗(yàn)

請(qǐng)聽報(bào)道并回答下列問題。

1. How does CO2 acidify the ocean?

2. How much has ocean acidity increased since the beginning of the industrial revolution?

3. True or false: This study believes that all organisms in the sea will benefit from the change in ocean acidity.

4. True or false: The German-based research programme also indicates that changes brought about by acidification will be improved by climate change pollution and coastal development.

答案

1. How does CO2 acidify the ocean?
CO2 emissions are soaked up by the oceans and because CO2 is mildly acidic, that's turning sea water more acidic.

2. How much has ocean acidity increased since the beginning of the industrial revolution?
Since the beginning of the industrial revolution, ocean acidity has increased by around a quarter.

3. True or false: This study believes that all organisms in the sea will benefit from the change in ocean acidity.
False. According to the article, this study concluded that some organisms may benefit from this change, but others will be harmed.

4. True or false: The German-based research programme also indicates that changes brought about by acidification will be improved by climate change pollution and coastal development.
False. According to the article, the German-based research programme also indicates that changes brought about by acidification will be made worse by climate change pollution and coastal development.