450)=450">

聽寫填空,只寫填空內(nèi)容,不抄全文,5個(gè)左右的句子,不用寫標(biāo)號(hào),注意標(biāo)點(diǎn),口語中因結(jié)巴等問題造成的重復(fù)單詞只寫一遍~

Anthony Andrady: Plastics have been around for perhaps less than 100 years. [---1---]

You are listening to Anthony Andrady, he is a plastics researcher at RTI International, which offers research and technical expertise to governments and businesses.

Anthony Andrady: [---2---]

Dr. Andrady's special interest is the increasing quantity of plastic now known to be in the oceans. [---3---]

Anthony Andrady: [---4---] And we keep adding more and more to it. [---5---] They are might be very serious.

We’re at

【視聽版科學(xué)小組榮譽(yù)出品】

因?yàn)榍疤鞗]有發(fā)布,所以今天補(bǔ)上一篇~
So in the short span, there hasn't been a group of microorganisms who have evolved who are capable of biodegrading plastics. This is my concern, in a sense, you are placing all these plastics in the ocean, and eventually they will reach the deep ocean environment. He said plastic lasts a long time there, because cold sea water slows down the chemical reactions that cause a plastic bottle lying on a beach, for example, to break down. But if you define biodegradation as the complete conversion of plastics into carbon dioxide and water, all the plastics that we ever put into the ocean, which is over the last 50, 60 years, would still be there in the ocean. And we do not know what the ecological consequences of these are.