11月9日CNN聽力：印尼火山暴發 巴厘島機場被迫封閉
A very warm welcome to viewers worldwide of CNNSTUDENT NEWS.
I'm Carl Azuz at the CNN Center.
First up this Thursday, a volcanic eruption nearBali.
This is a popular resort island in the Pacific islandcountry of Indonesia.
That's key here, because even though this eruption of Mount Rinjani wasn't actually on Bali,the wind blew its volcanic ash toward the island.
And even though the eruption wasn't a major threat to people on the ground, it is planes inthe air.
Volcanic ash can melt if it's sucked into aircraft engines.
It turns into a glasslike substance that can cause them or break down.
So, from Tuesday night until today, around 700 flights in the region were cancelled, leavingpeople stranded, either unable to leave Bali or unable to get there.
Ice in Antarctica, there's a lot of it.It doesn't sound much like breaking news.
But new information suggests it's increasing and that's puzzling some scientists becauseresearch over the last 10 years suggested that Antarctica is losing ice and that the melt iscontributing to rising levels.
Last year, NASA reported that Antarctic sea ice reached a new record size.
Now, it looks like the continent's ice sheet is growing.
We know that sea levels around the world are rising and current thinking is that part of thatsea level rise comes from melting ice in Antarctica.
But one recent study from NASA scientists says that may not be the case.
Is Antarctica gaining ice?Antarctica is a big place, roughly the size of U.S. and Mexico combined.
So, as you might expect, changes in its ice are not uniformed across the entire continent.
Nearly, all scientists agree that ice is being lost from the western part of Antarctica and along itspeninsula.
On the eastern side, ice is actually being gained.But where this study is different is theymeasured that that gaining of ice long eastern Antarctica is outpacing the loss on the westernside.
What's behind this addition of ice?
It's snowfalls that started becoming heavier around 10,000 years ago.The scientists know thisby looking into ice core data.
Why is this important?
It would mean that Antarctica is not contributing to seal level rise.
Bottom line: there is still a lot we need to learn about how Antarctica is reacting to climatechange.
Nine hours a day, that's how much time on average that American teenagers are spending withelectronic media, and this doesn't count any media they might use for school.
According to a study by a nonprofit group called Common Sense Media.
Its CEO says this shows that digital technology is the dominant force in teenagers' lives, thatthey spend more time with it than anything else, including sleeping.
And if you just break out screen times, smartphones, computers, TVs, tables, teenagersspend more than 6 1/2 hours a day with it, and younger kids more than 4 1/2 hours.
Media can affect learning.
Most of those surveyed said they're texting or listening to music while they're doing homework.
And experts say this makes them less effective at their homework.
Social media often factors in, too, and for many, social media seems to correlate with socialstanding.
The first headline:the more teens look at social media, the more distressed they can become.
Teens check their social media feeds way more than they actually pose something.
Our experts call it lurking.
And the heaviest users in the study told us they check their feeds more than 100 times a day.
Sometimes, I'll catch myself like going on my social media way too much, about 200 times in aday.
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我是卡爾·阿祖茲，這裏是CNN中間。
這個木曜日咱們起首會存眷巴厘島鄰近的一座火山暴發。
巴厘島是印度尼西亞寧靖洋一處異常受迎接的度假島嶼。
這是癥結地點,由於縱然此次的林加尼火山噴發不是在巴厘島上,風也會將火山灰吹向這座島。
縱然火山噴發沒有對地面上的人們組成重要威逼,也會影響到空中的飛機。
假如被飛機引擎吸入，火山灰會熔化。它會釀成一種玻璃狀物資,可使飛機產生崩潰。
是以從周二晚上到本日,這個地域約700架航班被迫撤消,人們被迫滯留,沒法分開巴厘島或沒法前去那邊。
在南極有許多冰。聽起來這可不比是突發消息。
但新的研討註解這片大陸的冰正在增長，而令一些科學家覺得迷惑的是,曩昔10年中的研討表現,南極冰架的熔化正造成日趨緊張的題目。
客歲,美國國度航空航天局表現南極的海冰面積創下新高。
如今,看起來這片大陸的冰蓋正出現增長趨向。
咱們曉得環球海平面正在上升,並且今朝的設法主意是部門緣故原由要歸罪於南極冰川熔化。
但比來美國宇航局科學家們的一項研討來表現大概並不是如斯。
南極的冰正在增長?
南極洲是一個很大之處,差未幾是美國和墨西哥的總和。
正如你所想, 冰的變更並非在全部南極洲發生。
全部的科學家險些都贊成南極洲西部地域及沿半島冰正在消逝的結論。
而東部的冰現實上正在增長。
然則,這項研討判然不同的一壁是科學家們丈量後表現南極洲東部冰的增長跨越西部的喪失。
冰之以是增長到底是甚麽緣故原由釀成的?
是降雪,約莫10000年前開端變得更重。
科學家們經由過程查詢拜訪冰芯數據懂得到如許的究竟。
為何這點相當主要?這象征著南極不會致使海平面上升。
底線是:咱們還須要研討更多南極洲若何應答氣象變更。
天天9小時,這是美國青少年均勻在電子交際媒體上所投入的時光,在黌舍他們大概應用的任何媒體其實不包含在個中。
這是依據一個名為Common Sense媒體的非紅利構造一項研討得出的結論。
該構造的CEO表現這註解數字技巧正成為青少年生存中的主導,比擬包含睡覺在內的其他任何工作，他們會投入更多時光。
屏幕時期正在暴發,智妙手機、電腦、電視、桌面裝備、青少年天天會在這些裝備上消耗跨越6個半小時,更年幼的孩子則會花去跨越4個半小時。
而如許的媒領會對學業造成影響。這項查詢拜訪中的大多半受訪者表現他們會在做功課時發短信或聽音樂。
而專家表現這會使得他們完成功課的效力下降。
交際媒體常常會成為這方面題目的重要身分,對很多人來講,交際媒體仿佛與社會位置掛鉤。
第一個題目:青少年越存眷社會媒體,就會變得越苦楚。
青少年更多存眷本身的交際媒體。
咱們的專家稱之為陷溺。
而重度用戶告知咱們他們天天會看本身的交際媒體跨越100次。
有時刻,我發明我愛好在我的交際媒體上投入太多,一天會看約200次。
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