[00:00.80]When the atmospheric concertrations [00:03.16]of these gases increase, however, [00:05.84]more heat is trapped and the Earth's [00:07.92]temperature rises. [00:10.37]Over the last 100 years, [00:13.01]the global average temperature [00:15.1

发表于:2018-12-13 / 阅读(85) / 评论(0) 分类 北师大版高中英语模块8(选修)

MICHEL MARTIN, HOST: Mars is about to get a new visitor from Earth tomorrow. If all goes well, a NASA probe called InSight will land near the Martian equator. Its mission is to study the interior of the planet. But, before it can carry out its missio

发表于:2018-12-18 / 阅读(50) / 评论(0) 分类 2018年NPR美国国家公共电台11月

Tom was hungry, but lazy too. He didn't want to cook. He didn't want to go to a restaurant. He didn't even want to heat up leftovers. He decided to have a pizza delivered to him. He went on a pizza website. He ordered a small pizza. He waited for the

发表于:2018-12-28 / 阅读(26) / 评论(0) 分类 英语第5级听力-English Level 5

Using science as a guide, we attempt to recreate the final moments of the dinosaurs. 我们以科学为指引,试图重建恐龙的最后时刻。 The first effect was the impact itself. 第一个效果是撞击本身。 So when a 10-kilometer diam

发表于:2018-12-28 / 阅读(22) / 评论(0) 分类 侏罗纪搏击俱乐部

Broadcast: Jan 21, 2003 By Gary Garriott Drying food is a simple, low-cost way to keep food safe for eating. Drying removes water that small organisms use to break down food into other substances. Som

发表于:2019-01-02 / 阅读(67) / 评论(0) 分类 VOA2003(上)-社会广角

AGRICULTURE REPORT - Solar Food Dryers By Gary Garriott Broadcast: Tuesday, March 01, 2005 I'm Gwen Outen with the VOA Special English Agriculture Report. Drying food is a simple, low-cost way to keep

发表于:2019-01-30 / 阅读(55) / 评论(0) 分类 农业与发展