All living things on Earth are made of the same building blocks: long carbon-based molecules. Scientists now think that a large proportion of these molecules came from outside planet Earth.地球上所有的生物都是由相同的构件组成的：长碳基分子。科学家们现在认为，这些分子中的很大一部分来自地球以外的...
What Makes Us Different The reason Barth differs (differ) from all the other__41__ (planet) in the universe is because of you and me. At first, we were living in caves, then came the ice age, then the meltdown, and__42__ (final), what we are today. We and Earth as a whole...
1完形补文 (第41~50题,每题1.5分,共15分)What Makes Us DifferentThe reason Earth differs (differ) from all the other ___ (planet) in the universe is because of you and me. At first, we were living in caves, then came the ice age, then the meltdown, and ___ (final), what we ...
This video put on YouTube shows in graphic detail how a planet is created. The first half deals with the death of a star and the birth of a new star and planet. The film also details Panspermia, the belief that we came from another place....
Scientists now think that a large proportion of these molecules came from outside planet Earth. Comets and asteroids could be the missing links of a long chain.科学家们现在认为，这些分子中有很大一部分来自地球以外的星球。彗星和小行星可能是生命的长链中缺失的环节。The chain began with the simple ...
42. [G] 定位句:The current crisis is not the first that humans have encountered, and a look at the struggles with pollution in recent history reveals transformations that once seemed unimaginable. 43. [A] 定位句:The idea of preserving resources ...
The question is “what came first, the Universe or Life?” A chicken and egg problem, to be sure, but easily resolved. Since Universe could not have developed *at random*, without some plan and intelligent direction, we must assume that Life came first. We might say that Universe IS Lif...
"Are there hunters on this planet?" “在那个星球上,有猎人吗?” "No." “没有。” "Ah, that is interesting! Are there chickens?" “这很有意思。那么,有鸡吗?” "No." “也没有。” "Nothing is perfect," sighed the fox. “
WhenA Bite of Chinafirst season went on the air, countless viewers kept coming back for more as new episodes came out. Many were moved to tears by the touching stories of real people and the foods they love. And the show wasn’t just a hit in China. After the first season ended, mo...
Following these discoveries, in 2006 the International Astronomical Union (IAU) came up with new definitions for planets, dwarf planets, and small solar system bodies. Today, Pluto is officially categorized as a dwarf planet. In many ways, history has repeated itself. In 1801, astronomers announce...