Paragraph 1:In order to understand the origin of Earth's atmosphere, we must go back to the earliest days of the solar system, before the planets themselves were formed from a disk of rocky material spinning around the young Sun. This material gradually coalesced into lumps called planetesimals...
比如第6篇Forming the Building Blocks of Life《生命形成的基石》话题关于氨基酸,与旧题中讨论生命形成理论的文章有近似内容。 3.除了提高词汇量、阅读速度和解题技巧,充分研读分析旧题以及观看BBC相关纪录片有助于了解人文历史、生物、天文地理、艺术等相关内容。比如今天考察...
Paragraph 1:In order to understand the origin of Earth's atmosphere, we must go back to the earliest days of the solar system, before the planets themselves were formed from a disk of rocky material spinning around the young Sun. This material gradually coalesced into lumps called planetesimals...
当它开始达到最大尺寸时,地球变热了,部分原因是与其他星子的碰撞,另一部分原因是随着体积的增大,内部压力越来越大。此外,早期地球含有丰富的放射性物质,也是热量的来源。随着地球的升温,它的内部融化了。在熔融内部,在重力的影响下,不同的元素按密度进行分类。到太阳系形成约4000万年后,早期地球上大多数较重的金属...
TF232-The Rise of Moscow 482023-03 2 TF231-The Origin of Earth’s Atmosphere 352023-03 3 TF230-The Classic Mayan Collapse 282023-03 4 TF229-Newspapers in Western Europe 392023-03 5 TF228-Hunting and the Settling of Inner Eurasia 502023-03 6 TF227-Disease and History 472023-03 7 TF226...
为了帮助大家高效备考托福，为大家带来托福TPO36阅读Passage2原文文本+题目+答案解析，希望对大家备考有所帮助。TheoriginofEarth’satmosphereInordertounderstandtheoriginofEarth'satmosphere,wemustgobacktotheearliestdaysofthesolarsystem,beforetheplanetsthemselveswereformedfromadiskofrockymaterialspinningaround...
origin of the earth's atmosphere 下载积分: 1500 内容提示: Chemical Evolution of Life on the Early EarthAll organisms on Earth today use the same four bases in the same geneticcode and the same 20 amino acids (out of the hundreds possible). Furthermorethey all use the same basic mechanism...
The breathable air we enjoy today originated from tiny organisms, although the details remain lost in geologic time
19The First EyesThe Origin of Earth’s AtmosphereThe Emergence of Civilization 20Colonial America and the Navigation ActsMass Production: Method and ImpactArt and Culture of Pacific Northwest Communities 21Memphis: United Egypt’s First CapitalSurface Fluids on Venus and EarthPopulation Growth in Ninete...
所属专辑:托福阅读 音频列表 1 TF233-How Animals in Rain Forests Make Themselves Heard 34 2023-03 2 TF232-The Rise of Moscow 48 2023-03 3 TF231-The Origin of Earth’s Atmosphere 35 2023-03 4 TF230-The Classic Mayan Collapse 28